DJSETO - My '93 FD Build Thread
#226
rotorhead
iTrader: (3)
The threads I've made on so many topics are now buried in search results. When in doubt, go to advanced search and search for threads I've started across all subforums on this, and I may have covered part of your question.
https://www.rx7club.com/single-turbo...control-900599
Also check post #50 where Banzai Racing points out that you can connect to the precontrol and turn off sequential control.
here's another useful thread https://www.rx7club.com/3rd-generati...-chart-952767/
https://www.rx7club.com/single-turbo...control-900599
Also check post #50 where Banzai Racing points out that you can connect to the precontrol and turn off sequential control.
here's another useful thread https://www.rx7club.com/3rd-generati...-chart-952767/
#227
The threads I've made on so many topics are now buried in search results. When in doubt, go to advanced search and search for threads I've started across all subforums on this, and I may have covered part of your question.
https://www.rx7club.com/single-turbo...control-900599
Also check post #50 where Banzai Racing points out that you can connect to the precontrol and turn off sequential control.
here's another useful thread https://www.rx7club.com/3rd-generati...-chart-952767/
https://www.rx7club.com/single-turbo...control-900599
Also check post #50 where Banzai Racing points out that you can connect to the precontrol and turn off sequential control.
here's another useful thread https://www.rx7club.com/3rd-generati...-chart-952767/
#229
I haven’t started my car a whole lot since I’m still waiting on the flange to get welded on but the few times I did crank it, it started up with zero issues with the PC925. As for the tie towns, they are J-hooks. I just drilled a hole in the bottom of the bin to thread them through. Since the bottom of the J is bigger than the hole, the J hooks don’t come out. Attaching to the frame would certainly be ideal but it would have been a real pain in the ***. This thing isn’t going anywhere and if I *knock on wood* ever got into an accident where the force caused the battery to split/break the plastic, I’m pretty sure the battery is the least of my worries.
#230
Full Member
iTrader: (5)
I haven’t started my car a whole lot since I’m still waiting on the flange to get welded on but the few times I did crank it, it started up with zero issues with the PC925. As for the tie towns, they are J-hooks. I just drilled a hole in the bottom of the bin to thread them through. Since the bottom of the J is bigger than the hole, the J hooks don’t come out. Attaching to the frame would certainly be ideal but it would have been a real pain in the ***. This thing isn’t going anywhere and if I *knock on wood* ever got into an accident where the force caused the battery to split/break the plastic, I’m pretty sure the battery is the least of my worries.
-milly
#231
Awesome. May be looking at that route soon. Going to add aftermarket sound system, as long as it can crank with added electronics (including engine bay), would like to go that route without hacking the bins to pieces. Did you run a longer solid ground to a hard point or just ground near the bins for the negative?
-milly
-milly
#232
After lots of time, work, and money, I FINALLY got her put back together yesterday. I fired her up, went for a drive, and had a nice big grin of satisfaction and accomplishment that 1. It didn't combust into flames, 2. It didn't stall or just randomly shut off, and 3. Just felt good!
I found a local shop to tig weld the BOV flange on. It cost me like $140 for about 2.5 hours of labor (supposedly). They said to do it right, it took time and careful prep given how aluminum does under heat and the size of the Synapse BOV flange. Speaking of Synapse, I never got a support response from them but I got it wired up and I gotta say, I LOVE the BOV. It sounds great venting to atmosphere and I get ZERO flutter from my turbo now. Very happy with the product. Support however is ****.
I was driving today and it was about 65f degrees out. My air intake temps were at about 80f and my water temp was at 167f. I guess we'll see how it does in the hot humid NC summer, but I like what I see so far. The car idled stable and my Wideband would read right around 14 at cruising and 11-12 when on boost. Overall, with the Vmount and new suspension, the car feels better than it ever has.
I only have a few minor things left: Wire up the solenoid to the PFC since I fried my AVC-R, install a manual boost gauge (tired of looking at the Japanese metric on PFC), get a bigger air filter for my turbo, and get the RX8 AC condenser (new on Rockauto.com for $35!) installed and some custom lines made for some functioning AC. Then off to the dyno for a good tune and I should be golden (cross fingers) for DGRR 2020 at the end of April. At some point, I'll also fix/upgrade the aftermarket stereo so I have some tunes but the sound of my engine, exhaust, and BOV is music to my ears right now!
Now if only the damn OEM nose would go back on so I could get rid of this Veilside nose and sell off this body kit...
All done (for now)
Inside of intake pipe where flange was welded
$140 later...
I found a local shop to tig weld the BOV flange on. It cost me like $140 for about 2.5 hours of labor (supposedly). They said to do it right, it took time and careful prep given how aluminum does under heat and the size of the Synapse BOV flange. Speaking of Synapse, I never got a support response from them but I got it wired up and I gotta say, I LOVE the BOV. It sounds great venting to atmosphere and I get ZERO flutter from my turbo now. Very happy with the product. Support however is ****.
I was driving today and it was about 65f degrees out. My air intake temps were at about 80f and my water temp was at 167f. I guess we'll see how it does in the hot humid NC summer, but I like what I see so far. The car idled stable and my Wideband would read right around 14 at cruising and 11-12 when on boost. Overall, with the Vmount and new suspension, the car feels better than it ever has.
I only have a few minor things left: Wire up the solenoid to the PFC since I fried my AVC-R, install a manual boost gauge (tired of looking at the Japanese metric on PFC), get a bigger air filter for my turbo, and get the RX8 AC condenser (new on Rockauto.com for $35!) installed and some custom lines made for some functioning AC. Then off to the dyno for a good tune and I should be golden (cross fingers) for DGRR 2020 at the end of April. At some point, I'll also fix/upgrade the aftermarket stereo so I have some tunes but the sound of my engine, exhaust, and BOV is music to my ears right now!
Now if only the damn OEM nose would go back on so I could get rid of this Veilside nose and sell off this body kit...
All done (for now)
Inside of intake pipe where flange was welded
$140 later...
Last edited by Djseto; 03-09-20 at 09:26 PM.
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DaleClark (03-10-20)
#235
RX-7 Bad Ass
iTrader: (55)
Glad she's in business!
I agree, I'd shop around for another welder long term. There's a small local shop that I've had weld stuff up for me, either plugging a hole or welding a flange on or something. Don't think I've ever spent more than $40. But, that said, some aluminum tubing can be a pain to weld to, that piping is anodized so that can be a little tricky.
Dale
I agree, I'd shop around for another welder long term. There's a small local shop that I've had weld stuff up for me, either plugging a hole or welding a flange on or something. Don't think I've ever spent more than $40. But, that said, some aluminum tubing can be a pain to weld to, that piping is anodized so that can be a little tricky.
Dale
#238
It Just Feels Right
iTrader: (11)
Very nice progress from when you got it
You can probably get your IATs down even further if you block the v-mount opening on the passenger side. Even better would be to plumb your intake into that so it's getting fresh air
And don't manually control boost. The PFC will control it. If you want to use a MAC valve, they sell a kit, https://apexi-usa.com/power-fc-compo...trol-kit-mazda
You can probably get your IATs down even further if you block the v-mount opening on the passenger side. Even better would be to plumb your intake into that so it's getting fresh air
And don't manually control boost. The PFC will control it. If you want to use a MAC valve, they sell a kit, https://apexi-usa.com/power-fc-compo...trol-kit-mazda
#239
@TomU - yeh. the kit came with a cover for that area, but I'm waiting to fit a bigger Air filter over that area and also waiting until I get my AC condenser fitted and working. As for the solenoid, I'm going to re-use the one I have which was part of the AVCR kit. It looks like the same one in the kit. I'm also going to add a turbo blanket as well.
#240
OK. I need some help here. I followed an old post by @arghx where @Banzai-Racing said I could connect the solenoid to the Turbo Precontrol connector. I confirmed I had the OEM connector still on my harness (B1-37 with yellow/blue and black/white wires) per the Wiring FSM. I connected my solenoid to a battery and it pops/clicks. I plugged a test light into the 12V wire of the OEM precontrol connector and it lit up so I know I’ve got power. I connected the two since the Apexi solenoid uses the same connector as OEM so no messing with wiring to my PFC harness. I then plumbed as so: Vacuum nipple on UIM connected to COM port on Solenoid and then NC port connected to the the bottom port of my Turbosmart WG which currently has a 7psi spring in it. I left NO port open. My target boost is 14psi or maybe a little under so i started with .90 kg/cm^2 which is 12.8psi.
I went into the PFC settings with my Datalogit and turned Sequential Off and left turbo transition times alone (Per Banzai Racing’s post) and then I initially set my boost to .90 and dusty cycle to 46%. First run, full throttle 3rd gear, hit about 1.1 before I blew a coupler off my intercooler piping. Still, I over shot it. Tightened the coupler, adjusted to .85 and 80%. I hit 1.09 and the fuel cut. 3rd run, changed to .90 and 80% and hit the fuel cut again at like 1.25. That was all I had time for tonight.
So...my guess is that my solenoid isnt working properly? The only thng I didn’t test was whether or not there was a good ground on the OEM connector but let’s assume there is, where do I start to troubleshoot? Is there a way to test the solenoid is working aside from just hearing it pop when 12v is applied? Maybe it’s clogged from having sat in a field for 5 years?
I went into the PFC settings with my Datalogit and turned Sequential Off and left turbo transition times alone (Per Banzai Racing’s post) and then I initially set my boost to .90 and dusty cycle to 46%. First run, full throttle 3rd gear, hit about 1.1 before I blew a coupler off my intercooler piping. Still, I over shot it. Tightened the coupler, adjusted to .85 and 80%. I hit 1.09 and the fuel cut. 3rd run, changed to .90 and 80% and hit the fuel cut again at like 1.25. That was all I had time for tonight.
So...my guess is that my solenoid isnt working properly? The only thng I didn’t test was whether or not there was a good ground on the OEM connector but let’s assume there is, where do I start to troubleshoot? Is there a way to test the solenoid is working aside from just hearing it pop when 12v is applied? Maybe it’s clogged from having sat in a field for 5 years?
#241
Senior Member
iTrader: (7)
OK. I need some help here. I followed an old post by @arghx where @Banzai-Racing said I could connect the solenoid to the Turbo Precontrol connector. I confirmed I had the OEM connector still on my harness (B1-37 with yellow/blue and black/white wires) per the Wiring FSM. I connected my solenoid to a battery and it pops/clicks. I plugged a test light into the 12V wire of the OEM precontrol connector and it lit up so I know I’ve got power. I connected the two since the Apexi solenoid uses the same connector as OEM so no messing with wiring to my PFC harness. I then plumbed as so: Vacuum nipple on UIM connected to COM port on Solenoid and then NC port connected to the the bottom port of my Turbosmart WG which currently has a 7psi spring in it. I left NO port open. My target boost is 14psi or maybe a little under so i started with .90 kg/cm^2 which is 12.8psi.
I went into the PFC settings with my Datalogit and turned Sequential Off and left turbo transition times alone (Per Banzai Racing’s post) and then I initially set my boost to .90 and dusty cycle to 46%. First run, full throttle 3rd gear, hit about 1.1 before I blew a coupler off my intercooler piping. Still, I over shot it. Tightened the coupler, adjusted to .85 and 80%. I hit 1.09 and the fuel cut. 3rd run, changed to .90 and 80% and hit the fuel cut again at like 1.25. That was all I had time for tonight.
So...my guess is that my solenoid isnt working properly? The only thng I didn’t test was whether or not there was a good ground on the OEM connector but let’s assume there is, where do I start to troubleshoot? Is there a way to test the solenoid is working aside from just hearing it pop when 12v is applied? Maybe it’s clogged from having sat in a field for 5 years?
I went into the PFC settings with my Datalogit and turned Sequential Off and left turbo transition times alone (Per Banzai Racing’s post) and then I initially set my boost to .90 and dusty cycle to 46%. First run, full throttle 3rd gear, hit about 1.1 before I blew a coupler off my intercooler piping. Still, I over shot it. Tightened the coupler, adjusted to .85 and 80%. I hit 1.09 and the fuel cut. 3rd run, changed to .90 and 80% and hit the fuel cut again at like 1.25. That was all I had time for tonight.
So...my guess is that my solenoid isnt working properly? The only thng I didn’t test was whether or not there was a good ground on the OEM connector but let’s assume there is, where do I start to troubleshoot? Is there a way to test the solenoid is working aside from just hearing it pop when 12v is applied? Maybe it’s clogged from having sat in a field for 5 years?
#242
rotorhead
iTrader: (3)
You're jumping the gun here. Unplug the solenoid and see if the boost drops. If it does, your boost and duty settings are too high.
You probably started too high on the settings. Cut the boost and duty values in half (0.45 , 23%) and see what happens. Please re read my threads on boost control for the sake of your engine. Look at your datalogs and compare solenoid duty cycle and boost to see what's happening.
You probably started too high on the settings. Cut the boost and duty values in half (0.45 , 23%) and see what happens. Please re read my threads on boost control for the sake of your engine. Look at your datalogs and compare solenoid duty cycle and boost to see what's happening.
Last edited by arghx; 03-13-20 at 07:39 AM.
#243
You're jumping the gun here. Unplug the solenoid and see if the boost drops. If it does, your boost and duty settings are too high.
You probably started too high on the settings. Cut the boost and duty values in half (0.45 , 23%) and see what happens. Please re read my threads on boost control for the sake of your engine. Look at your datalogs and compare solenoid duty cycle and boost to see what's happening.
You probably started too high on the settings. Cut the boost and duty values in half (0.45 , 23%) and see what happens. Please re read my threads on boost control for the sake of your engine. Look at your datalogs and compare solenoid duty cycle and boost to see what's happening.
I def had the wrong oem connector. The correct color for 4V connector is L/Y and my dumbass connected to Y/L. Confirmed this stupidity via continuity check per @aplscrambles. I found the correct connector but it failed continuity check so I spliced the correct colors from avcr harness that the solenoid connects to into the pfc harness. Going to go take a run again. My understanding from the articles is that the number you put in (eg. .90) is the target boost in kg/cm^2 right? So i take my target ps, convert it to kg/cm^2 and then use duty cycle to fine tune it right?
#244
@arghx - made a run with your suggested setting after wiring it correctly (I hope). Hard to make runs on public roads and capture data and be safe but the is one of my runs. Somehow I don't think it's right....my WG% is looks to be on or off. Definitely was still hitting fuel cutoff at around .77
The attached images are the whole capture and then part of the capture zoomed in.
The attached images are the whole capture and then part of the capture zoomed in.
Last edited by Djseto; 03-13-20 at 01:28 PM.
#246
Did some testing on my solenoid by blowing into one end with and without power to seeing what happens.
NO POWER to Solenoid = COM vents to NO
WITH POWER to Solend = COM vents to NC
So, after talkin@Molotovman , he suggests I replumb. My UIM should connect to NO and my WG (bottom port) should connect to COM and NC should be open to vent...
NO POWER to Solenoid = COM vents to NO
WITH POWER to Solend = COM vents to NC
So, after talkin@Molotovman , he suggests I replumb. My UIM should connect to NO and my WG (bottom port) should connect to COM and NC should be open to vent...
Last edited by Djseto; 03-13-20 at 11:00 PM.
#247
Replumbed per Molotovmans suggestion and still not getting the intended behavior. @arghx -- thoughts? This capture was .45 @ 50% duty. Still hitting fuel cutoff. I'm still unsure if I'm plumbed right. I've seen some video on YouTube where people using a 3 port solenoid have both the TOP and BOTTOM port of the WG connected
#248
also... been doing some reading and I wonder if my WG is too small. I'm running. 40mm WG on a Borg Warner S300-SXE 8380. I have been seeing the big turbo + low boost = bigger WG. Pretty sure this qualifies as a big turbo. I know it's the first time Bryan at Rotorsports used this size turbo and now I'm wondering if I'm blowing past my boost because my WG just can't vent enough since I'm not running high amount of boost...????
#250