Well, I blew the motor
Thread Starter
Z06 powered FD
Joined: Mar 2001
Posts: 1,883
Likes: 0
From: Dallas, Texas
Well, I blew the motor
at the NHRA Sport Comp event. I was having problems all weekend. First I blew a hole in the y-pipe coupler on Friday but it was still pushing 7psi through it and my best time with that was a 13.27 @ 104. I fixed the coupler by cutting it off at the hole. It was holding at 10psi but I had to turn the boost all the way up to get that (stupid idea), and I ran this:
60' - 1.962
330' - 5.418
1/8 - 8.306
mph - 85.91
1000 - 10.767
1/4 - 12.867
mph - 107.33
Needless to say that coupler didn't stay on long. I got a new coupler Saturday but it was raining on the way to the track so I couldn't test it and set the Profec. I set it to what looked like 10 -12psi for the only time trial I got. Well I ran another 12.8 but it was at 10psi so I turned it up a notch.
Somehow either I messed something up or something f*&#d up after that. During my last run the boost went to about 19-20psi and blew the motor imediatly
This was on normal street tires and about 95 degree weather.
So other then getting a streetport, what else should I do while the motor is out?
60' - 1.962
330' - 5.418
1/8 - 8.306
mph - 85.91
1000 - 10.767
1/4 - 12.867
mph - 107.33
Needless to say that coupler didn't stay on long. I got a new coupler Saturday but it was raining on the way to the track so I couldn't test it and set the Profec. I set it to what looked like 10 -12psi for the only time trial I got. Well I ran another 12.8 but it was at 10psi so I turned it up a notch.
Somehow either I messed something up or something f*&#d up after that. During my last run the boost went to about 19-20psi and blew the motor imediatly
This was on normal street tires and about 95 degree weather.
So other then getting a streetport, what else should I do while the motor is out?
Last edited by GsrSol; Aug 11, 2002 at 02:38 PM.
Joined: Oct 2001
Posts: 4,772
Likes: 2
From: My 350Z Roadster kicks my RX7's butt
How did you figure out you blew the Y-pipe coupler? Was that afterwards, when then egine allready blew?
I'm only hitting 10lbs and i'm getting pretty nervous!
I'm only hitting 10lbs and i'm getting pretty nervous!
WTB** Very Low Miles 94-95
Joined: Jul 2001
Posts: 3,298
Likes: 0
From: Tejas
non seq is a waste unless you enjoy lag...tis just my humble opinion....the kick is nice...but I enjoy the response and streetablity of seq. Toadman listened to you guys (fd3boost and rikki) and he has since gone back to seq. sure it makes things easier but its a different beast.
anyhow...do the streetport...check those turbos too..odds are they needing a rebuild if you are racing it. might as well go with m2's ball bearing set ....oh **** this is getting expensive already.
I wouldnt get the flywheel either...another waste of money in my opinion....also makes you have problems off the line/lights...just not worth it if you like to drive on the street.
the streetport is a must...
time to replace all sensors and solonoids...new vacuum hoses...new little things...replace as much as you can while its out.
Id do new injectors too. Replacing the injectors with new or doing the upgrades now will make your life easier in the long run. when I did my last motor i simply re used the injectors...sure enuff two months later i had the friggen thing apart putting different ones in...finally on the new motor I went with 1300's.
act clutch time too!
j
anyhow...do the streetport...check those turbos too..odds are they needing a rebuild if you are racing it. might as well go with m2's ball bearing set ....oh **** this is getting expensive already.
I wouldnt get the flywheel either...another waste of money in my opinion....also makes you have problems off the line/lights...just not worth it if you like to drive on the street.
the streetport is a must...
time to replace all sensors and solonoids...new vacuum hoses...new little things...replace as much as you can while its out.
Id do new injectors too. Replacing the injectors with new or doing the upgrades now will make your life easier in the long run. when I did my last motor i simply re used the injectors...sure enuff two months later i had the friggen thing apart putting different ones in...finally on the new motor I went with 1300's.
act clutch time too!
j
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Senior Member
Joined: Jan 2002
Posts: 401
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From: canada
I agree with Artguy... the squential is the way to go.
If you do decide you're going non-squential then get the flywheel.
I had the light flywheel a few years back and had the most dificult time launching at the track... very insonsistant 60 fts.
Anyways, sorry to hear of your troubles. I know what you must feel like the same happened to me last year.
take care
jc.
If you do decide you're going non-squential then get the flywheel.
I had the light flywheel a few years back and had the most dificult time launching at the track... very insonsistant 60 fts.
Anyways, sorry to hear of your troubles. I know what you must feel like the same happened to me last year.
take care
jc.
Senior Member
Joined: Apr 2002
Posts: 433
Likes: 1
From: Ljungby, Sweden
I think it's great that there exists people that wanna stick with the seq. turbos.
I havent had my FD very long(4-5 months) But i know how boring turbolag can get so i want to stick with the seq. setup. Only thing is that people often talk about how unreliable the seqs are. isn't there a way to make the seqs more simple?
I havent had my FD very long(4-5 months) But i know how boring turbolag can get so i want to stick with the seq. setup. Only thing is that people often talk about how unreliable the seqs are. isn't there a way to make the seqs more simple?
Thread Starter
Z06 powered FD
Joined: Mar 2001
Posts: 1,883
Likes: 0
From: Dallas, Texas
No single turbo I want to stick with twins and seq. cause the car was daily driven for now and I would have no low end, which is about all I use unless I'm racing. I'm not a big fan of tubo lag
Double throttle is a good idea!
There were actually 2 holes in the coupler. Boost dropped off and would not hold. I knew it was a boost leak and first choice was that coupler.
New housings if I can afford it. What kind of oil upgrades? New coolers are too expensive. I've heard about a oil plug or something.
I just had 2 new injectors and vacuum hoses done, might do the other 2 injectors. Turbos seem just fine. Clutch is 10 months old.
Are you the same BoostedRotor I used to know, that bought the shop?
I will also do pulleys and maybe Efini ypipe. Any more ideas? I want it done right.
Thanks guys!
I want to stick with twins and seq. cause the car was daily driven for now and I would have no low end, which is about all I use unless I'm racing. I'm not a big fan of tubo lag Double throttle is a good idea!
There were actually 2 holes in the coupler. Boost dropped off and would not hold. I knew it was a boost leak and first choice was that coupler.
New housings if I can afford it. What kind of oil upgrades? New coolers are too expensive. I've heard about a oil plug or something.
I just had 2 new injectors and vacuum hoses done, might do the other 2 injectors. Turbos seem just fine. Clutch is 10 months old.
Are you the same BoostedRotor I used to know, that bought the shop?
I will also do pulleys and maybe Efini ypipe. Any more ideas? I want it done right.
Thanks guys!
Thread Starter
Z06 powered FD
Joined: Mar 2001
Posts: 1,883
Likes: 0
From: Dallas, Texas
I appreciate the kindness boostedrotor, you're a brave man to let someone drive your car who just blew up thier motor How much lighter is your flywheel? Would just a couple of lbs lighter affect it that much?
Anyways I used to know a guy from Ft Worth that owned a shop and had 2 FD's, his names on other forums were always "boostedrotor", but he sold the shop and moved. Sorry to confuse you.
How much lighter is your flywheel? Would just a couple of lbs lighter affect it that much?Anyways I used to know a guy from Ft Worth that owned a shop and had 2 FD's, his names on other forums were always "boostedrotor", but he sold the shop and moved. Sorry to confuse you.
Lives on the Forum
Joined: Dec 2001
Posts: 14,716
Likes: 10
From: San Lorenzo, California
Sorry to hear about that Gsrsol. Good luck with the new motor. And spring for the new rotor housings, no matter what. You don't want to discover later that coolant seal failure had already started in your used ones.
Good luck.
Good luck.
Full Member
Joined: Dec 2001
Posts: 229
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From: nj
i'm bringing my car to the shop monday to start my engine job. i went with a mazda reman and i have a new set of factory turbos. sorry to hear that you popped your motor, now is when you want to be driving and having fun.
Senior Member
Joined: Apr 2002
Posts: 297
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From: dallas
hey gsr sol, i know the guy you are talking about, he dicked my buddy over real well on a gsr swap.......long long story.....i have the 9.5lb flywheel, but if you are worried get the 12.5lb one.....seems logical to me.....besides, my motor is under warranty......btw, how do you like the trailing arms and toe links???
Thread Starter
Z06 powered FD
Joined: Mar 2001
Posts: 1,883
Likes: 0
From: Dallas, Texas
EGR valve, I'll have to research the benefits of that one. All I can remember is that it's harder on a 94.
I heard he screwed over alot of people, that might be why he moved! TL and TA are a little rougher on the street and I still get some wheel hop, however my stock bushings were shot anyways.
Do you guys think it will be time for bigger secondary injectors and fuel pump? I figure the street-port should put me at about 330rwhp.
I heard he screwed over alot of people, that might be why he moved! TL and TA are a little rougher on the street and I still get some wheel hop, however my stock bushings were shot anyways.
Do you guys think it will be time for bigger secondary injectors and fuel pump? I figure the street-port should put me at about 330rwhp.
Don't have to do this while the engine is out of course, but a pop off valve may be a good $100+investment to prevent overboosting in the future. I'm still waiting on mine though - Jasonnnnnn!
Thread Starter
Z06 powered FD
Joined: Mar 2001
Posts: 1,883
Likes: 0
From: Dallas, Texas
I just did a little more research and some people are saying that you need to tune in bigger injectors with the ecu, therefore my ecu can't do that??
POV, I forgot about those! That could have saved my ***.
I got a video uploaded of the 2nd 12.8 run, 10psi and 2.0 60'
http://www.imagestation.com/picture/...e/fd6a632e.mpg
My friend has video of me blowing up and all the black smoke but it will take me a while to get the tape and upload it.
POV, I forgot about those! That could have saved my ***.
I got a video uploaded of the 2nd 12.8 run, 10psi and 2.0 60'
http://www.imagestation.com/picture/...e/fd6a632e.mpg
My friend has video of me blowing up and all the black smoke but it will take me a while to get the tape and upload it.
Last edited by GsrSol; Aug 12, 2002 at 01:13 AM.
Rotary Enthusiast
Joined: Feb 2001
Posts: 1,025
Likes: 4
From: Huntington Beach, CA, USA
Silicone impregnated coolant seals, ported oil and coolant passages. The rest of the stuff is outside so at least you can always change your mind, but I'd definitely get those, can't hurt and don't cost much.
WTB** Very Low Miles 94-95
Joined: Jul 2001
Posts: 3,298
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From: Tejas
the pfc is a pain in the ***. good luck tuning it in texas...and no mail order package is gonna save you with the mod list you are planning to run. I live in LA and STILL have not found a tuner who can help me out here. Ive tuned the thing myself and its not perfect. dave at kd has my datalogs right now...hopefully his input will get me to the next step.
get a haltech...or something other than that PIA PFC....Id get whatever the boys in garland are using so you can get the thing tuned. if they use it then Id say go for it...but i cant remember right now if they are motec or haltech or other.
anybody who tells you to tune it by mail is a FOOL...remember that when it comes to buying it. that works fine for jack nothing in mods...but the thicker the list the more difficult and impossible it becomes. read the thread about xs in the vendors forum if you dont believe me.
good luck
jason
get a haltech...or something other than that PIA PFC....Id get whatever the boys in garland are using so you can get the thing tuned. if they use it then Id say go for it...but i cant remember right now if they are motec or haltech or other.
anybody who tells you to tune it by mail is a FOOL...remember that when it comes to buying it. that works fine for jack nothing in mods...but the thicker the list the more difficult and impossible it becomes. read the thread about xs in the vendors forum if you dont believe me.
good luck
jason
