91 Formula turbo, 383 w/a BW S400
#101
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Car: '91 Firebird Formula
Engine: 383 w/ BW S400 turbo
Transmission: TH400
Axle/Gears: QP 9", 35 spline, spool, 3.15:1
Re: 91 Formula turbo, 383 w/a BW S400
I run the MSII/Extra code which I slightly modified to work with the coil packs I am using. It supports launch control and closed loop boost control which I plan to use eventually. It supports overboost protection as a nice feature as well.
#102
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Car: 92 L98 Z28 Heritage Hard Top
Engine: L98 350 w/ HSR,24lbs inj,AFPR
Transmission: TCI Super Street Fighter W/3300 sta
Axle/Gears: 3.73 Detriot NoSpin,LPW cover
Re: 91 Formula turbo, 383 w/a BW S400
I will have to run after market gauges with MS, I have a 92 L98 Z28 SD, VSS car and MS does not yet suport vss.
#103
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Car: '91 Firebird Formula
Engine: 383 w/ BW S400 turbo
Transmission: TH400
Axle/Gears: QP 9", 35 spline, spool, 3.15:1
Re: 91 Formula turbo, 383 w/a BW S400
However, I believe the MS GPIO board does support VSS. There is a preliminary kit out for it now as well: http://www.diyautotune.com/catalog/p...kit-p-392.html
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Car: 92 L98 Z28 Heritage Hard Top
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Transmission: TCI Super Street Fighter W/3300 sta
Axle/Gears: 3.73 Detriot NoSpin,LPW cover
Re: 91 Formula turbo, 383 w/a BW S400
http://cgi.ebay.com/ebaymotors/On-3-...item20aecfaea1
cold 63/92 hot 72.45/84.4
is this good or bad, Sir?
cold 63/92 hot 72.45/84.4
is this good or bad, Sir?
#106
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Engine: 3xx ci tubo
Transmission: 4L60E & 4L80E
Re: 91 Formula turbo, 383 w/a BW S400
http://cgi.ebay.com/ebaymotors/On-3-...item20aecfaea1
cold 63/92 hot 72.45/84.4
is this good or bad, Sir?
cold 63/92 hot 72.45/84.4
is this good or bad, Sir?
You are describing two different turbos. I don't get what you are asking.
That Ebay AD is all over the place with turbo specs. None of them match up. I would stay far away from purchasing that turbo. I would look for an AD with the real specs. and buy from them if that is what you are looking for.
#107
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Car: 92 L98 Z28 Heritage Hard Top
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Re: 91 Formula turbo, 383 w/a BW S400
I asked the seller a Q, and thats what they sent to me... wierd I know
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Engine: 3xx ci tubo
Transmission: 4L60E & 4L80E
Re: 91 Formula turbo, 383 w/a BW S400
I wouldn't trust any of that info. from that seller based on the info. in the AD.
In your new thread post what size engine and specs you are building. More than likely you will want at ebay GT45 if you are dead set on buying a China turbo.
#109
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Car: 92 L98 Z28 Heritage Hard Top
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Re: 91 Formula turbo, 383 w/a BW S400
I am not thread jacking...this is a place for info, and that is what I am getting, Bnoble if it seams as if I am thread jacking, I am sorry, I look up to you and your build talents, and just want to pick your brain.
#110
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Car: '91 Firebird Formula
Engine: 383 w/ BW S400 turbo
Transmission: TH400
Axle/Gears: QP 9", 35 spline, spool, 3.15:1
Re: 91 Formula turbo, 383 w/a BW S400
I am eternally skeptical of eBay turbos. S400s are proven, bulletproof, and still pretty damn cheap. If you plan to upgrade in the future they're also a little more resell-able than the ebay junk. If you're building a 700hp car, the extra $300 you'll spend on an S400 is a drop in the bucket.
#111
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Car: 92 L98 Z28 Heritage Hard Top
Engine: L98 350 w/ HSR,24lbs inj,AFPR
Transmission: TCI Super Street Fighter W/3300 sta
Axle/Gears: 3.73 Detriot NoSpin,LPW cover
Re: 91 Formula turbo, 383 w/a BW S400
Thank you sir, your wisdom and knowlage on this subject has helped me so much, keep up the good work!!! Makes sense to just buy the turbo only once...If you can't afford to do it right, can you afford to do it again?
#112
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Car: 91 rs
Engine: Blow through 383, 10 psi, xr288hr
Transmission: Manual th350 ATI 3000
Axle/Gears: 3.50 9"
Re: 91 Formula turbo, 383 w/a BW S400
That turbo is well worth the price. Ebay turbos are for "junk" projects, unless you REALLY do your homework and know EXACTLY what you are getting. Gotta have a lot of time on your hands to be willing to do that much research to save that little money.
#113
Re: 91 Formula turbo, 383 w/a BW S400
I am eternally skeptical of eBay turbos. S400s are proven, bulletproof, and still pretty damn cheap. If you plan to upgrade in the future they're also a little more resell-able than the ebay junk. If you're building a 700hp car, the extra $300 you'll spend on an S400 is a drop in the bucket.
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Engine: 3xx ci tubo
Transmission: 4L60E & 4L80E
Re: 91 Formula turbo, 383 w/a BW S400
Please don't tell. It will be just more people to compete with. My favorite is the no tag name brand turbos sold on ebay. Those can be a good score. Like a 75mm unit for $50.
#115
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Car: '91 Firebird Formula
Engine: 383 w/ BW S400 turbo
Transmission: TH400
Axle/Gears: QP 9", 35 spline, spool, 3.15:1
#116
Re: 91 Formula turbo, 383 w/a BW S400
I just discovered this thread and wanted to say that your car is amazing man. All the fab work is awesome! Can't wait to see the new pics this season! Great work.
#117
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Car: '91 Firebird Formula
Engine: 383 w/ BW S400 turbo
Transmission: TH400
Axle/Gears: QP 9", 35 spline, spool, 3.15:1
Re: 91 Formula turbo, 383 w/a BW S400
Went back to work on the engine. The main bearings looked good so I put the bottom end back together and moved up to the top end. The rear two cylinders, #7 and #8, both had a very sticky tar-like substance in the intake ports. I assume oil or something was making its way into them somehow. I pulled the drivers side head just to check and cylinder #7 looks fine Everything is copacetic, except for that tar stuff. The 1003 head gaskets also seem to be holding up well. I'll order a new one and button it back up I guess.
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Re: 91 Formula turbo, 383 w/a BW S400
Is that your return line next to the line with your filter coming out of the sump in the tank? If so that may be part of your fuel pump issues. You don't want the return that closet to the supply as it will circulate the hot fuel coming back from the motor and can also cause circulation issues.
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Re: 91 Formula turbo, 383 w/a BW S400
for that head issue, what kinda PCV is on the car or oil catch can/ crank breathing system? Also check the cold side of the turbo maybe you need to put an oil restrictor on the oil feed, you could be pushing oil through the turbo possibly?
Jay
Jay
#120
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Car: '91 Firebird Formula
Engine: 383 w/ BW S400 turbo
Transmission: TH400
Axle/Gears: QP 9", 35 spline, spool, 3.15:1
Re: 91 Formula turbo, 383 w/a BW S400
Is that your return line next to the line with your filter coming out of the sump in the tank? If so that may be part of your fuel pump issues. You don't want the return that closet to the supply as it will circulate the hot fuel coming back from the motor and can also cause circulation issues.
Just breathers on the valve covers. No oil is coming through the intake, it is clean. I only noticed the deposits after I removed the intake and looked down into the ports in the heads. It's only in the cylinder #7 and #8 intake ports too. I suspected I was sucking oil past the rocker stud threads but it is clean around that area. Only other thing is valve seals.
#121
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Car: 92 L98 Z28 Heritage Hard Top
Engine: L98 350 w/ HSR,24lbs inj,AFPR
Transmission: TCI Super Street Fighter W/3300 sta
Axle/Gears: 3.73 Detriot NoSpin,LPW cover
Re: 91 Formula turbo, 383 w/a BW S400
Bnoble do you think this will work? Its a T-6 flaged merge pipe with V-band conects. Just would like your 2 cents. I ordered it off Ebay.
#122
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Car: '91 Firebird Formula
Engine: 383 w/ BW S400 turbo
Transmission: TH400
Axle/Gears: QP 9", 35 spline, spool, 3.15:1
Re: 91 Formula turbo, 383 w/a BW S400
That appears to be a pretty hefty casting. Do you have a better picture of the flanges? It looks like those are designed to clamp to flared tubing.
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Re: 91 Formula turbo, 383 w/a BW S400
have you started your own build thread scotty?
Bnoble, u gonna have that beast back together for spring, or summer?
i would think the gunk in 7 & 8 runners is prolly just seaping valve seals, with all the g force pushing the oil to the back of the valve covers maybe?
Last edited by iroc a 86 berli; 01-20-2010 at 10:54 AM.
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Re: 91 Formula turbo, 383 w/a BW S400
[quote=bnoble;4406365]If you're talking about the fuel pump failing, it was a known fault with the electronics that FuelLab has since fixed. With respect to the return though, you're absolutely correct. I cannot run below 1/4 tank right now without sucking air. I'll be pulling the tank back out before the the season starts to relocate the return and possibly deepen the sump. If you have any other suggestions regarding the sump I'd love to hear them.
The sump is ok just add a bung on the tank for your size return line as high and far away as you can from the supply bung. I have done many of these same setups where I had to put the return above the supply and it works. As long as the return fuel is splashing into the top of the fuel in the tank. That will give it time to cool before its next trip to the motor and keep it away from the supply.
The sump is ok just add a bung on the tank for your size return line as high and far away as you can from the supply bung. I have done many of these same setups where I had to put the return above the supply and it works. As long as the return fuel is splashing into the top of the fuel in the tank. That will give it time to cool before its next trip to the motor and keep it away from the supply.
#125
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Car: '91 Firebird Formula
Engine: 383 w/ BW S400 turbo
Transmission: TH400
Axle/Gears: QP 9", 35 spline, spool, 3.15:1
Re: 91 Formula turbo, 383 w/a BW S400
Right now the engine is back together and ready to go in the car. I'm going to keep it on the stand until I clean up the engine compartment and swap in a manual steering box though.
#127
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Car: '91 Firebird Formula
Engine: 383 w/ BW S400 turbo
Transmission: TH400
Axle/Gears: QP 9", 35 spline, spool, 3.15:1
#129
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Car: '91 Firebird Formula
Engine: 383 w/ BW S400 turbo
Transmission: TH400
Axle/Gears: QP 9", 35 spline, spool, 3.15:1
Re: 91 Formula turbo, 383 w/a BW S400
http://www.youtube.com/watch?v=rm5DmzJNSwc
I need to get the insurance reinstated this week so I can get it back on the road.
I need to get the insurance reinstated this week so I can get it back on the road.
#131
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Car: 92 L98 Z28 Heritage Hard Top
Engine: L98 350 w/ HSR,24lbs inj,AFPR
Transmission: TCI Super Street Fighter W/3300 sta
Axle/Gears: 3.73 Detriot NoSpin,LPW cover
Re: 91 Formula turbo, 383 w/a BW S400
any updates? you sir are the man, wish I had your set up in my car, now that would be bada$$
#132
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Car: '91 Firebird Formula
Engine: 383 w/ BW S400 turbo
Transmission: TH400
Axle/Gears: QP 9", 35 spline, spool, 3.15:1
Re: 91 Formula turbo, 383 w/a BW S400
I did take it out to the country for a nice drive this Friday though, video is here:
http://www.youtube.com/watch?v=8uFZYExYe8o
Last edited by bnoble; 05-12-2010 at 06:30 AM. Reason: Updated video
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Re: 91 Formula turbo, 383 w/a BW S400
That video is by far the best one i've seen....seriously.
Did you use a GoPro camera?
Did you use a GoPro camera?
#134
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Car: '91 Firebird Formula
Engine: 383 w/ BW S400 turbo
Transmission: TH400
Axle/Gears: QP 9", 35 spline, spool, 3.15:1
#135
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Car: 92 L98 Z28 Heritage Hard Top
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Transmission: TCI Super Street Fighter W/3300 sta
Axle/Gears: 3.73 Detriot NoSpin,LPW cover
Re: 91 Formula turbo, 383 w/a BW S400
wish i could hear the turbo more than the music...lol still one of the best i have seen
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Car: 91 rs
Engine: Blow through 383, 10 psi, xr288hr
Transmission: Manual th350 ATI 3000
Axle/Gears: 3.50 9"
Re: 91 Formula turbo, 383 w/a BW S400
Real nice car
I won't say anything about the music, lol.
Nice country too.
I won't say anything about the music, lol.
Nice country too.
#137
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Car: '91 Firebird Formula
Engine: 383 w/ BW S400 turbo
Transmission: TH400
Axle/Gears: QP 9", 35 spline, spool, 3.15:1
Re: 91 Formula turbo, 383 w/a BW S400
Thanks. The camera was picking up too much noise from the fuel pump attached directly to the body, so the sound wasn't that great to begin with. I have a separate audio recorder I plan to use when I can find a good way to mount it.
#138
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Car: '91 Firebird Formula
Engine: 383 w/ BW S400 turbo
Transmission: TH400
Axle/Gears: QP 9", 35 spline, spool, 3.15:1
Re: 91 Formula turbo, 383 w/a BW S400
I updated the video a little. At the end I added a few clips without the music that the sound came out OK on. Hope that's better
#139
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Car: '91 Firebird Formula
Engine: 383 w/ BW S400 turbo
Transmission: TH400
Axle/Gears: QP 9", 35 spline, spool, 3.15:1
Re: 91 Formula turbo, 383 w/a BW S400
Kind of a disappointing day at the track last Friday. I turned the wastegate up a little which led to a lot of boost creep going down the track and prevented me from ever making a full pass. Best was 11.37 @ 113 with a 1.59 60'.
Here's a video of a slower run with a highlight of my traction issues. It hit overboost at 330' and had to pedal it the rest of the way through the 1/4. 11.9 @ 103, 1.81 60'. I'm moving the LCAs up a notch as it seems I'm shocking the heck out of the tires on the launch. I'd appreciate any input from the suspension guys. MT ET Street Radials, 255/50/16 @ 18psi.
http://www.youtube.com/watch?v=buW5zA_VZgw
Here's a video of a slower run with a highlight of my traction issues. It hit overboost at 330' and had to pedal it the rest of the way through the 1/4. 11.9 @ 103, 1.81 60'. I'm moving the LCAs up a notch as it seems I'm shocking the heck out of the tires on the launch. I'd appreciate any input from the suspension guys. MT ET Street Radials, 255/50/16 @ 18psi.
http://www.youtube.com/watch?v=buW5zA_VZgw
#140
Re: 91 Formula turbo, 383 w/a BW S400
Originally Posted by bnoble
Kind of a disappointing day at the track last Friday. I turned the wastegate up a little which led to a lot of boost creep going down the track and prevented me from ever making a full pass. Best was 11.37 @ 113 with a 1.59 60'.
#141
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Car: '91 Firebird Formula
Engine: 383 w/ BW S400 turbo
Transmission: TH400
Axle/Gears: QP 9", 35 spline, spool, 3.15:1
Re: 91 Formula turbo, 383 w/a BW S400
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Car: 91 rs
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Re: 91 Formula turbo, 383 w/a BW S400
It looks like your suspension is a little too aggressive. The tires seem to start spinning as the rear begins to unload. I think thats the least amount of pressure you want to run in those tires too. What tq arm do you have? Thats a nice 60 ft and it looks like you have a good bit of improvement to make.
I had the same problem my first run. I had the control arms at their lowest point and you could actually hear the shocks clap as they topped out. I was running the 275 et streets. It wasn't until I put 10.5W slicks on that I realized I had a real problem in the suspension instead of the tires. I could launch in second gear and still spin the tires. Now that I have the suspension set up better, the car hooks pretty darn well with 225 snow tires on the street. I haven't tried it with the slicks yet due to a broken wheel stud.
I also have a jegster tq arm which is pretty aggressive. So aggressive that I might actually have to set up the control arms with a slight down angle, so that when the rear is loaded, the control arms are level. I need to take some very good up close video.
I had the same problem my first run. I had the control arms at their lowest point and you could actually hear the shocks clap as they topped out. I was running the 275 et streets. It wasn't until I put 10.5W slicks on that I realized I had a real problem in the suspension instead of the tires. I could launch in second gear and still spin the tires. Now that I have the suspension set up better, the car hooks pretty darn well with 225 snow tires on the street. I haven't tried it with the slicks yet due to a broken wheel stud.
I also have a jegster tq arm which is pretty aggressive. So aggressive that I might actually have to set up the control arms with a slight down angle, so that when the rear is loaded, the control arms are level. I need to take some very good up close video.
#143
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Car: '91 Firebird Formula
Engine: 383 w/ BW S400 turbo
Transmission: TH400
Axle/Gears: QP 9", 35 spline, spool, 3.15:1
Re: 91 Formula turbo, 383 w/a BW S400
It looks like your suspension is a little too aggressive. The tires seem to start spinning as the rear begins to unload. I think thats the least amount of pressure you want to run in those tires too. What tq arm do you have? Thats a nice 60 ft and it looks like you have a good bit of improvement to make.
As for the taking video of your launches, I'd recommend getting one of Casio's high speed cameras. I use an EX-FH25 but you might also want to look into an EX-FC100. It's only $180 and can take decent quality high speed video at 210fps and low quality video up to 1000fps. I think it's a great tool.
#144
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Car: 92 L98 Z28 Heritage Hard Top
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Transmission: TCI Super Street Fighter W/3300 sta
Axle/Gears: 3.73 Detriot NoSpin,LPW cover
Re: 91 Formula turbo, 383 w/a BW S400
Any updates, I am ordering my Turbo stuff with my taxes
#145
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Re: 91 Formula turbo, 383 w/a BW S400
no you dont... all you need is a buffer box from a firebird around 87ish year to make your speedo work with the ms
its a simple fix run a few wires and your done and it works just like normal without the factory ecm
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Re: 91 Formula turbo, 383 w/a BW S400
Cars turning out nice! I'd love to see what my stock factory rear suspension looks like when i launch it. lol
#148
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Re: 91 Formula turbo, 383 w/a BW S400
Wander what ever happened with his car?
#149
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Re: 91 Formula turbo, 383 w/a BW S400
I hope he didnt sell car! He was suppose to sell it back to me
Hope he comes in here to let us know
Hope he comes in here to let us know
#150
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Car: '91 Firebird Formula
Engine: 383 w/ BW S400 turbo
Transmission: TH400
Axle/Gears: QP 9", 35 spline, spool, 3.15:1
Re: 91 Formula turbo, 383 w/a BW S400
Between work and rain just about every other weekend I never actually got it to the track last year. Just been driving it on the street and enjoying it.
If I don't go on deployment this year I plan to hit the track again. Biggest issue so far has been trying to get good traction off the line.. I can't leave under boost and I'm nearly to the 1/8th before the turbo's fully spooled. Despite that it's been 11.000 and consistently hanging with low-10 cars at the top end of the track. That's where I want it to be, I just need some bigger tires or a place that actually preps the track..
If I don't go on deployment this year I plan to hit the track again. Biggest issue so far has been trying to get good traction off the line.. I can't leave under boost and I'm nearly to the 1/8th before the turbo's fully spooled. Despite that it's been 11.000 and consistently hanging with low-10 cars at the top end of the track. That's where I want it to be, I just need some bigger tires or a place that actually preps the track..