View Poll Results: Should I Brideport my new engine?
Keep the streetport that you already enlarged this rebuild.
21
17.36%
Bridgeport that thing, because big ports are cool.
74
61.16%
Bridgeport it so I can watch you ruin your engine.
14
11.57%
What is a Bridgeport? Stickers + Exhaust make cars faster.
12
9.92%
Voters: 121. You may not vote on this poll
Should I do a partial BP on my new engine?
09-07-01, 10:36 AM
#53
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Rotary gods unfavorable....
Well, I made it to the dyno -- kind of. Just as I pulled in front of the driveway to make my left turn, I was rear-ended. The ironic part is that I was rear-ended by another Rx-7. The even more ironic part was that this Rx-7 was rear-ended by yet another Mazda -- an MPV. The worst part of it all is that they are both my very good friends. Since the intimate details are not appropriate to this thread, I will keep this very brief. It was very scary since my pregnant girlfriend was with riding with me, and we were both taken away by ambulance. All three of us are fine, just very sore and shaken. I have not assessed my car yet; it was the last thing on my mind. My g/f had the laptop on her, well, lap top -- and at one point I saw it floating in mid air before it smashed off the dash and windshield. It is in a few pieces now 
I am hoping to head back out to the scene later today and see how the car is. If the fuel system is intact, I'm just going to go ahead and tune it regarldless of the body, and then deal with that as another issue. My car definitely fared the best off all three vehicles.
The Rx-7 behind me was a TII that I sold to my friend a little over a year ago. He recently finished rebuilding: streetport, 3mm seals, etc.. getting ready for a big turbo upgrade. His car is totalled. It is amazing how much damage there is to his car compared to mine. I wont detail his private details of the incident, but he and his girlfriend also left by ambulance but are fine. The driver of the van, also a very good friend, is fine. Rx-7's again prove to be very safe vehicles in crash conditions, even without airbags.
The frustrating part is that we were going slower than the speed limit, and no one was horsing around. The turn for the dyno is in the middle of nowhere, at the end of about a dozen sweeping turns downhill through a wooded area with the bank cut into a hill on one side -- hope this forms that ideal BFE image. It wasn't really anyones fault.
I'll let everyone know what the condition of the car is as soon as I make it back to inspect it. I'm so frustrated now I would part it out and buy a car with 20 airbags that deploy from every direction....
I am hoping to head back out to the scene later today and see how the car is. If the fuel system is intact, I'm just going to go ahead and tune it regarldless of the body, and then deal with that as another issue. My car definitely fared the best off all three vehicles.The Rx-7 behind me was a TII that I sold to my friend a little over a year ago. He recently finished rebuilding: streetport, 3mm seals, etc.. getting ready for a big turbo upgrade. His car is totalled. It is amazing how much damage there is to his car compared to mine. I wont detail his private details of the incident, but he and his girlfriend also left by ambulance but are fine. The driver of the van, also a very good friend, is fine. Rx-7's again prove to be very safe vehicles in crash conditions, even without airbags.
The frustrating part is that we were going slower than the speed limit, and no one was horsing around. The turn for the dyno is in the middle of nowhere, at the end of about a dozen sweeping turns downhill through a wooded area with the bank cut into a hill on one side -- hope this forms that ideal BFE image. It wasn't really anyones fault.
I'll let everyone know what the condition of the car is as soon as I make it back to inspect it. I'm so frustrated now I would part it out and buy a car with 20 airbags that deploy from every direction....
09-11-01, 05:22 PM
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Results from the accident scene...
I finally went to look at the car last night. At first, I was optimistic that the car was better than I thought. The bumper didn't look as horrible as I thought it would. Of course the tailights were smashed along with the license plate pocket..... and then I saw the giant crease in the B-Pillar. I walked to the other side of the car: same thing. Frame damage. I was really hoping this was not the case. I popped the hatch and pulled the carpet to the spare tire well; also some good smashing in that area. Just then my friend announced 'yep. the exhaust was hit'. The right tip was pushed forward about 4". I looked under the car expecting the tip's weld to be broken, and the extension to the tip pushed into the muffler. nope. From this angle, it looked as though the rest of the exhaust was hanging very, very low. I dropped down to the side of the car, and verified that the exhaust had bent downward. So, I popped the hood to inspect the damage from that perspective. I could immediately see that the downpipe had smashed into the transmission and stopped there. This prompted me to examine the turbo and manifold; as suspected, there is a large crack in the manifold at the turbo flange. The turbo is also suspect for damage, but that will have to be inspected carefully later. Arghh. I could have been much, much worse. Everyone seems to be fine, and recovering from the incident. The Rx-7 behind me still amazes me when I compare the damage it received to mine. Hmm.. brings back equations involving reconstitution of elasticity from the physics days. Seems my car had the right coeffecients? Well... the car seems even more trivial with recent events, but that is for another forum. Being that the car is 10ft away from the dyno, I may try to effect some temporary repairs and tune the car before I tow it out of there. I'll keep everyone updated.
09-11-01, 11:42 PM
#56
Just Call Me Terminator!
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Re: Results from the accident scene...
Originally posted by Exit13B
I finally went to look at the car last night. At first, I was optimistic that the car was better than I thought. The bumper didn't look as horrible as I thought it would. Of course the tailights were smashed along with the license plate pocket..... and then I saw the giant crease in the B-Pillar. I walked to the other side of the car: same thing. Frame damage. I was really hoping this was not the case. I popped the hatch and pulled the carpet to the spare tire well; also some good smashing in that area. Just then my friend announced 'yep. the exhaust was hit'. The right tip was pushed forward about 4". I looked under the car expecting the tip's weld to be broken, and the extension to the tip pushed into the muffler. nope. From this angle, it looked as though the rest of the exhaust was hanging very, very low. I dropped down to the side of the car, and verified that the exhaust had bent downward. So, I popped the hood to inspect the damage from that perspective. I could immediately see that the downpipe had smashed into the transmission and stopped there. This prompted me to examine the turbo and manifold; as suspected, there is a large crack in the manifold at the turbo flange. The turbo is also suspect for damage, but that will have to be inspected carefully later. Arghh. I could have been much, much worse. Everyone seems to be fine, and recovering from the incident. The Rx-7 behind me still amazes me when I compare the damage it received to mine. Hmm.. brings back equations involving reconstitution of elasticity from the physics days. Seems my car had the right coeffecients? Well... the car seems even more trivial with recent events, but that is for another forum. Being that the car is 10ft away from the dyno, I may try to effect some temporary repairs and tune the car before I tow it out of there. I'll keep everyone updated.
I finally went to look at the car last night. At first, I was optimistic that the car was better than I thought. The bumper didn't look as horrible as I thought it would. Of course the tailights were smashed along with the license plate pocket..... and then I saw the giant crease in the B-Pillar. I walked to the other side of the car: same thing. Frame damage. I was really hoping this was not the case. I popped the hatch and pulled the carpet to the spare tire well; also some good smashing in that area. Just then my friend announced 'yep. the exhaust was hit'. The right tip was pushed forward about 4". I looked under the car expecting the tip's weld to be broken, and the extension to the tip pushed into the muffler. nope. From this angle, it looked as though the rest of the exhaust was hanging very, very low. I dropped down to the side of the car, and verified that the exhaust had bent downward. So, I popped the hood to inspect the damage from that perspective. I could immediately see that the downpipe had smashed into the transmission and stopped there. This prompted me to examine the turbo and manifold; as suspected, there is a large crack in the manifold at the turbo flange. The turbo is also suspect for damage, but that will have to be inspected carefully later. Arghh. I could have been much, much worse. Everyone seems to be fine, and recovering from the incident. The Rx-7 behind me still amazes me when I compare the damage it received to mine. Hmm.. brings back equations involving reconstitution of elasticity from the physics days. Seems my car had the right coeffecients? Well... the car seems even more trivial with recent events, but that is for another forum. Being that the car is 10ft away from the dyno, I may try to effect some temporary repairs and tune the car before I tow it out of there. I'll keep everyone updated.
hope nothing happened to you about today.
09-16-01, 03:50 PM
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That's a shame that your trip ended so close to the dyno. As long as everyone is ok is the important thing. I decided to keep the air bag in my FD, although the stock steering wheel isn't to sexy, it's safer. I can't offer any advice to you for anything about the BP project because I don't know much about it. I can say though, that now I'm looking at going half BP from reading your thread. Would you entertain helping someone get their car setup for a half BP from stock 
09-17-01, 02:37 PM
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FastX7: I got your PM, but I'll reply here since I am lazy If you were considering a parital BP, you would need to get a large single turbo, big fuel system, free-flowing intake and exhaust, and a full standalone EFI system. I would not do it as a side project, and then try to upgrade the rest of the car later.
I don't have any updates on my car yet, as I am waiting for the insurance companies to clean up the mess. I also need to re-write the novel that I tried to post before labor day. Anyways, the car was more than streetable by my standards. I don't regret the BP for street use, but do regret the sequential transmission for street use. Hopefully I will be more optimistic and less frustrated once the car is back on the track where it belongs. I am actually very worried that they will total the car, which puts me in a lose/lose situation.
There is actually another owner from the area that just picked his car up with a small parital bridge that idles at 1000RPM! (but no BP idle). I will try to check out his setup and post some details on that, too. I just found out about it today. Maybe they 'told' him it was a parital BP but it isn't?
If you were considering a parital BP, you would need to get a large single turbo, big fuel system, free-flowing intake and exhaust, and a full standalone EFI system. I would not do it as a side project, and then try to upgrade the rest of the car later.I don't have any updates on my car yet, as I am waiting for the insurance companies to clean up the mess. I also need to re-write the novel that I tried to post before labor day. Anyways, the car was more than streetable by my standards. I don't regret the BP for street use, but do regret the sequential transmission for street use. Hopefully I will be more optimistic and less frustrated once the car is back on the track where it belongs. I am actually very worried that they will total the car, which puts me in a lose/lose situation.
There is actually another owner from the area that just picked his car up with a small parital bridge that idles at 1000RPM! (but no BP idle). I will try to check out his setup and post some details on that, too. I just found out about it today. Maybe they 'told' him it was a parital BP but it isn't?
09-17-01, 07:12 PM
#59
Weird Cat Man
How deep?
I did a nice size street port (following the Racing Beat template more or less) on my 3rd gen engine... My only question is: 'how deep?'.
A picture is worth 1000 words, but I don't have one Right now, I have the secondary intake face cut to the full size of the RB template, and then I just sorta blended it down from the top at a fairly shallow (maybe 30 degrees?) angle into the port until it meets up with the stock port wall. The extra part of the port is not very deep... so I'm not sure that I'll get the full benefit of the extra port timing if the pathway is too narrow to allow airflow. I'm not sure how much people really dig in to the stock port walls and how much is mostly just 'face work'.
I know this is difficult to explain over a message board, but if anyone has any advice, I'd like to hear it! I'm heading down into the garage now to try to shave off a bit more metal....
Brian
A picture is worth 1000 words, but I don't have one
Right now, I have the secondary intake face cut to the full size of the RB template, and then I just sorta blended it down from the top at a fairly shallow (maybe 30 degrees?) angle into the port until it meets up with the stock port wall. The extra part of the port is not very deep... so I'm not sure that I'll get the full benefit of the extra port timing if the pathway is too narrow to allow airflow. I'm not sure how much people really dig in to the stock port walls and how much is mostly just 'face work'. I know this is difficult to explain over a message board, but if anyone has any advice, I'd like to hear it! I'm heading down into the garage now to try to shave off a bit more metal....
Brian
09-17-01, 09:39 PM
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I wanted to know what I need to go partial BP so that I can upgrade the stuff I my car that I can still use for the time being. Like, going to a stand-alone computer, upgrade the fuel system, etc. I want to get my car ready for it. Would the PFC work, or would I need something like the Haltech? Trying to get some tips
09-24-01, 07:49 PM
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Sounds Sounds Sounds!
Ok, finally, I captured the video from the BP's first days.
HERE is an mp3 of the first start of the partial BP.
The sound you here before the engine starts is the FUEL PUMP! You can barely have a conversation over this thing!!!
You can also hear me moving the shifter down through the gates to the bottom of neutral, and then let out the clutch. You can tell how loud the tranny is going to be, just from hearing it free-spin!
At the end of the clip, I am stepping outside the car.
I should probably post this in my Dougnash thread, but HERE is a link to my first test run with the new transmission, but on the old streetported block -- the day before the boost controller failed and ruinued that block. In this video, the car goes approx. 1/4 mile before downshifting to 1st, and getting ready to merge. You can hear the loud fuel pump, and the loud straight cut gears. You even get to hear a typical downshift with no synchos! (I have gotten slightly better- but downshifting is still avoided!) This entrance ramp, err, track entrance is at least a 10% grade -- but it still maxes out 5th gear before the end of the ramp! I never let up on the gas, I just shift. I will encode a higher bandwidth video tomorrow so you can see the distinct jerk in the camera -- it is very unique.
HERE is an mp3 of the first start of the partial BP.
The sound you here before the engine starts is the FUEL PUMP! You can barely have a conversation over this thing!!!
You can also hear me moving the shifter down through the gates to the bottom of neutral, and then let out the clutch. You can tell how loud the tranny is going to be, just from hearing it free-spin!
At the end of the clip, I am stepping outside the car.
I should probably post this in my Dougnash thread, but HERE is a link to my first test run with the new transmission, but on the old streetported block -- the day before the boost controller failed and ruinued that block. In this video, the car goes approx. 1/4 mile before downshifting to 1st, and getting ready to merge. You can hear the loud fuel pump, and the loud straight cut gears. You even get to hear a typical downshift with no synchos! (I have gotten slightly better- but downshifting is still avoided!) This entrance ramp, err, track entrance is at least a 10% grade -- but it still maxes out 5th gear before the end of the ramp! I never let up on the gas, I just shift. I will encode a higher bandwidth video tomorrow so you can see the distinct jerk in the camera -- it is very unique.
09-24-01, 09:31 PM
#62
HE HE HE!!!!
You really love that **** now don't you!
Try to avoid downshifting because the dogs and sliders were not really designed for that. Also keep an eye on the shifter linkage adjustment. Sorry to hear what happened to your car. Hope to see you running soon.
crispeed
87TII
9.20@150mph
You really love that **** now don't you!
Try to avoid downshifting because the dogs and sliders were not really designed for that. Also keep an eye on the shifter linkage adjustment. Sorry to hear what happened to your car. Hope to see you running soon.
crispeed
87TII
9.20@150mph
Last edited by crispeed; 09-24-01 at 09:33 PM.
09-25-01, 03:26 PM
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Sweet! Why do you sound disappointed?! My idle is similar. It can be coaxed to idle slightly lower, but then it is not as stable as I would like. What kind of exhaust did you use? I would worry that an exhaust that makes the idle quiet would hurt the top end drastically. Did your butt dyno indicate this?
I love the idle. I just moved the car a couple blocks between two of my warehouses about 5 minutes ago. It was so cool to sit at a stoplight with the car rocking like it had a big v8 it in! Insurance companies are supposed to have this mess looked at later this week. Arghh... I just want to get it put back together!!!!
I love the idle. I just moved the car a couple blocks between two of my warehouses about 5 minutes ago. It was so cool to sit at a stoplight with the car rocking like it had a big v8 it in! Insurance companies are supposed to have this mess looked at later this week. Arghh... I just want to get it put back together!!!!
09-25-01, 07:20 PM
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Now i feel better, i was getting worried i did some thing wrong in doing the bp but now that you discribed yours my sounds like what you just discribed, i was about to take the bp motor out ,i had a stock ported motor before it made 565 at 28psi with a 50 shot. I had an Apexi N1 before now i have a supra dragger ,no difference in power had to put in bigger injectors my duty cycle was at 79% at 20 psi had 850 and 1600 now i have 4 x1600 i going to the track tomorrow hopefully i can get in the 10s i 've been trying to get in the 10s for a yr.
09-26-01, 02:45 AM
#67
Originally posted by R1DREAD
Now i feel better, i was getting worried i did some thing wrong in doing the bp but now that you discribed yours my sounds like what you just discribed, i was about to take the bp motor out ,i had a stock ported motor before it made 565 at 28psi with a 50 shot. I had an Apexi N1 before now i have a supra dragger ,no difference in power had to put in bigger injectors my duty cycle was at 79% at 20 psi had 850 and 1600 now i have 4 x1600 i going to the track tomorrow hopefully i can get in the 10s i 've been trying to get in the 10s for a yr.
Now i feel better, i was getting worried i did some thing wrong in doing the bp but now that you discribed yours my sounds like what you just discribed, i was about to take the bp motor out ,i had a stock ported motor before it made 565 at 28psi with a 50 shot. I had an Apexi N1 before now i have a supra dragger ,no difference in power had to put in bigger injectors my duty cycle was at 79% at 20 psi had 850 and 1600 now i have 4 x1600 i going to the track tomorrow hopefully i can get in the 10s i 've been trying to get in the 10s for a yr.
I had the same problem you were having but ever since I changed over to the Weldon 2035 fuel pump all that went away!
crispeed
87TII
9.20@150mph
09-27-01, 01:28 PM
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Agree with chris on the Weldon. The big weldons are the way to go (that's the loud noise in my video!) You could pump enough beer through the thing to keep the entire beach happy at spring break in less than an hour.
Hmm.. 4-1600's?? When I was having difficultly with my custom injector driver, I tried to start the car on 1600's alone. I was not able to. If you do the math, you will find the minimum injector turn-on time dumps in WAY to much fuel for them to be used as primaries. How are you getting the car started? Has anyone else coaxed a car to run on 1600's as primaries? If you had a total of 1600 capacity using smaller injectors, the car will run. My old setup was 4-550's and 2-720's all firing in alternate pairs (1820 capacity total, each set), but the minimum turn on time works such that the 550's are doing the work at idle since the 720's can't quite open at very low times. I hope that made sense!? Anyways, 1600's just seem way to big for the car to start. Have you actually installed them? Your old setup will work just fine. Sell the extra 1600's and buy something nice for yourself instead! Just curious...
Hmm.. 4-1600's?? When I was having difficultly with my custom injector driver, I tried to start the car on 1600's alone. I was not able to. If you do the math, you will find the minimum injector turn-on time dumps in WAY to much fuel for them to be used as primaries. How are you getting the car started? Has anyone else coaxed a car to run on 1600's as primaries? If you had a total of 1600 capacity using smaller injectors, the car will run. My old setup was 4-550's and 2-720's all firing in alternate pairs (1820 capacity total, each set), but the minimum turn on time works such that the 550's are doing the work at idle since the 720's can't quite open at very low times. I hope that made sense!? Anyways, 1600's just seem way to big for the car to start. Have you actually installed them? Your old setup will work just fine. Sell the extra 1600's and buy something nice for yourself instead! Just curious...
09-27-01, 03:56 PM
#69
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I'm running 4 1600's, but with a Wolf 3D.
Originally posted by Exit13B
Agree with chris on the Weldon. The big weldons are the way to go (that's the loud noise in my video!) You could pump enough beer through the thing to keep the entire beach happy at spring break in less than an hour.
Hmm.. 4-1600's?? When I was having difficultly with my custom injector driver, I tried to start the car on 1600's alone. I was not able to. If you do the math, you will find the minimum injector turn-on time dumps in WAY to much fuel for them to be used as primaries. How are you getting the car started? Has anyone else coaxed a car to run on 1600's as primaries? If you had a total of 1600 capacity using smaller injectors, the car will run. My old setup was 4-550's and 2-720's all firing in alternate pairs (1820 capacity total, each set), but the minimum turn on time works such that the 550's are doing the work at idle since the 720's can't quite open at very low times. I hope that made sense!? Anyways, 1600's just seem way to big for the car to start. Have you actually installed them? Your old setup will work just fine. Sell the extra 1600's and buy something nice for yourself instead! Just curious...
Agree with chris on the Weldon. The big weldons are the way to go (that's the loud noise in my video!) You could pump enough beer through the thing to keep the entire beach happy at spring break in less than an hour.
Hmm.. 4-1600's?? When I was having difficultly with my custom injector driver, I tried to start the car on 1600's alone. I was not able to. If you do the math, you will find the minimum injector turn-on time dumps in WAY to much fuel for them to be used as primaries. How are you getting the car started? Has anyone else coaxed a car to run on 1600's as primaries? If you had a total of 1600 capacity using smaller injectors, the car will run. My old setup was 4-550's and 2-720's all firing in alternate pairs (1820 capacity total, each set), but the minimum turn on time works such that the 550's are doing the work at idle since the 720's can't quite open at very low times. I hope that made sense!? Anyways, 1600's just seem way to big for the car to start. Have you actually installed them? Your old setup will work just fine. Sell the extra 1600's and buy something nice for yourself instead! Just curious...
09-27-01, 05:31 PM
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I have the 1600s in now,the runs good on the highway but around town i have to drive in 3rd gear and its really loud. yesterday i tried to run 11.0 air fuel ratio and the car did not like it, when i get on it and let of it shoots 3ft flames and not just for a spilt second,i mean long or untill i get back on the gas . i did not know i could go past 80% duty cycle.
What airfuel should i be at? on the haltech 0-5v i use to be 4.20s yesterday i went to 4.50s or 11.2.
This **** is hard .
I think fuel pumps are good i have 2 Supra pumps and if one is good for 500 2 should be able to do 600 rwh weldon to noisey for me its still a street car i drive it to work every day i still want to be able to take road trips with it so i need a pump thats reliable.
sometimes i feel like i'm close and then something else happens
if i could make 600 off the bottle i would be happy i think i have everything to do all i need is someone to tune it. cris you want to take a trip to Mass? i made 485 of the bottle with a broken seal my first pass on the dyno at 20 psi i made 399 i got pisted and turned the nx on for the next pass and bang nx backfired and i hurt the motor got more pisted and made another pass at 28psi with the nx and wow 565 then i was happy
my mods are
T88 kit
e6k
4 1600 or 2 850s
bridgeported or unported motor
nx kit
What airfuel should i be at? on the haltech 0-5v i use to be 4.20s yesterday i went to 4.50s or 11.2.
This **** is hard .
I think fuel pumps are good i have 2 Supra pumps and if one is good for 500 2 should be able to do 600 rwh weldon to noisey for me its still a street car i drive it to work every day i still want to be able to take road trips with it so i need a pump thats reliable.
sometimes i feel like i'm close and then something else happens
if i could make 600 off the bottle i would be happy i think i have everything to do all i need is someone to tune it. cris you want to take a trip to Mass? i made 485 of the bottle with a broken seal my first pass on the dyno at 20 psi i made 399 i got pisted and turned the nx on for the next pass and bang nx backfired and i hurt the motor got more pisted and made another pass at 28psi with the nx and wow 565 then i was happy
my mods are
T88 kit
e6k
4 1600 or 2 850s
bridgeported or unported motor
nx kit
10-08-01, 07:22 PM
#72
i also agree with crispeed.. something is wrong with your fuel supply..
Hey Crispeed Weldon pumps are definitely the best but take a look at the new Aeromotive Pro pump.. Its a great pump and will support about 800hp. We use them on turbo mustangs with great results. If your making more then 800hp then you should definitely get a WELDON...
Hey 13Bace: what are you doing with 1600cc injectors as primaries. Your car must idle very good...LOL
Hey Crispeed Weldon pumps are definitely the best but take a look at the new Aeromotive Pro pump.. Its a great pump and will support about 800hp. We use them on turbo mustangs with great results. If your making more then 800hp then you should definitely get a WELDON...
Hey 13Bace: what are you doing with 1600cc injectors as primaries. Your car must idle very good...LOL
10-08-01, 09:34 PM
#73
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Originally posted by enzo250
i also agree with crispeed.. something is wrong with your fuel supply..
Hey Crispeed Weldon pumps are definitely the best but take a look at the new Aeromotive Pro pump.. Its a great pump and will support about 800hp. We use them on turbo mustangs with great results. If your making more then 800hp then you should definitely get a WELDON...
Hey 13Bace: what are you doing with 1600cc injectors as primaries. Your car must idle very good...LOL
i also agree with crispeed.. something is wrong with your fuel supply..
Hey Crispeed Weldon pumps are definitely the best but take a look at the new Aeromotive Pro pump.. Its a great pump and will support about 800hp. We use them on turbo mustangs with great results. If your making more then 800hp then you should definitely get a WELDON...
Hey 13Bace: what are you doing with 1600cc injectors as primaries. Your car must idle very good...LOL
10-09-01, 11:12 AM
#74
It has to do alot with TUNING YES your right.. But 1600cc injectors(as primaries) do not have a favorable spray pattern. More like an open faucet. Plus these injectors should be used up until boost hits then your secondies are the ones that should be big. You should try it. Get yourself a set of 550 or 850 and use them as your primaries and keep your 1600's as secondies.
10-09-01, 11:35 AM
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Originally posted by enzo250
It has to do alot with TUNING YES your right.. But 1600cc injectors(as primaries) do not have a favorable spray pattern. More like an open faucet. Plus these injectors should be used up until boost hits then your secondies are the ones that should be big. You should try it. Get yourself a set of 550 or 850 and use them as your primaries and keep your 1600's as secondies.
It has to do alot with TUNING YES your right.. But 1600cc injectors(as primaries) do not have a favorable spray pattern. More like an open faucet. Plus these injectors should be used up until boost hits then your secondies are the ones that should be big. You should try it. Get yourself a set of 550 or 850 and use them as your primaries and keep your 1600's as secondies.
