My 951 mod story pt 3 - boost rocks!
03-06-2002, 01:12 PM
#61
Three Wheelin'
Do you have a picture of this hall sensor mount for our cars? Will the belt cover still fit?
I had thought of mounting it at the flywheel end under the rear main. This would only be easier if the flywheel was already out!
I am being tempted by the engine management demon.
I had thought of mounting it at the flywheel end under the rear main. This would only be easier if the flywheel was already out!
I am being tempted by the engine management demon.
03-06-2002, 02:58 PM
#62
Rennlist Member
...female fuel pump...
<img src="graemlins/roflmao.gif" border="0" alt="[hiha]" /> <img src="graemlins/roflmao.gif" border="0" alt="[hiha]" /> <img src="graemlins/roflmao.gif" border="0" alt="[hiha]" />
-Hugh
86 '951
<img src="graemlins/roflmao.gif" border="0" alt="[hiha]" /> <img src="graemlins/roflmao.gif" border="0" alt="[hiha]" /> <img src="graemlins/roflmao.gif" border="0" alt="[hiha]" />
-Hugh
86 '951
03-06-2002, 03:20 PM
#63
Drifting
[quote]Originally posted by Russ Murphy:
<strong>Michael,
I'm not sure, but I think that 280rwhp with the stock injectors and 3bar fpr should be doable.
That's my goal for now with the stock injectors.
Might need octane to get there.
</strong><hr></blockquote>
Russ, 285hp at the rear wheels is easily doable with a Turbo S car and you don't need SDS or fancy computers for it. I laid down a consistent 285hp at the wheels and 315ft-lb torque @ 17psi for three years with no engine problems (this was Paul's car btw, not mine).
This is the recipe I developed/used and it has worked for many others that followed the path:
Steve R chips
3.0bar FPR
Aftermarket compressor bypass valve (I now recommend the Forge 007P unit)
Manual boost controller or EVC @ 17psi
The key thing is that the car has to be in a perfect state of tune. One guy I was helping would only generate 260hp at the wheels, about the same as what I got at 14.5psi and he was running 17psi. It turned out to be a collapsed downpipe adding tremendous backpressure.
If you add a cat-bypass, you might even be able to broaden the torque curve.
fc-racer
<strong>Michael,
I'm not sure, but I think that 280rwhp with the stock injectors and 3bar fpr should be doable.
That's my goal for now with the stock injectors.
Might need octane to get there.
</strong><hr></blockquote>
Russ, 285hp at the rear wheels is easily doable with a Turbo S car and you don't need SDS or fancy computers for it. I laid down a consistent 285hp at the wheels and 315ft-lb torque @ 17psi for three years with no engine problems (this was Paul's car btw, not mine).
This is the recipe I developed/used and it has worked for many others that followed the path:
Steve R chips
3.0bar FPR
Aftermarket compressor bypass valve (I now recommend the Forge 007P unit)
Manual boost controller or EVC @ 17psi
The key thing is that the car has to be in a perfect state of tune. One guy I was helping would only generate 260hp at the wheels, about the same as what I got at 14.5psi and he was running 17psi. It turned out to be a collapsed downpipe adding tremendous backpressure.
If you add a cat-bypass, you might even be able to broaden the torque curve.
fc-racer
03-06-2002, 04:33 PM
#64
Drifting
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fc,
thanks for the input. I think you're right in that the state of tune will have a big impact on output. My '88 isn't an S car, but it does have a 2.5 cat bypass and a Borla racing muffler. I guess the reason I'm doing the SDS is to have that "perfect" state of tune. The 280rwhp I'm shooting for is at approx. 15 psi. My intake won't have the pressure drop that the stock intake has so end charge intake temp should be less at a given boost. Plus, with the SDS I'll be running less retard at a given boost then probably any chip manufacturers would want to experiment with. This could have a rather significant effect on hp. Read this if you have time
<a href="http://www.sdsefi.com/techocta.htm" target="_blank">Octane vs. HP</a>
The brackets aren't ready yet, but hopefully it won't be much longer
These will require nothching the back side timing cover.
thanks for the input. I think you're right in that the state of tune will have a big impact on output. My '88 isn't an S car, but it does have a 2.5 cat bypass and a Borla racing muffler. I guess the reason I'm doing the SDS is to have that "perfect" state of tune. The 280rwhp I'm shooting for is at approx. 15 psi. My intake won't have the pressure drop that the stock intake has so end charge intake temp should be less at a given boost. Plus, with the SDS I'll be running less retard at a given boost then probably any chip manufacturers would want to experiment with. This could have a rather significant effect on hp. Read this if you have time
<a href="http://www.sdsefi.com/techocta.htm" target="_blank">Octane vs. HP</a>
The brackets aren't ready yet, but hopefully it won't be much longer
These will require nothching the back side timing cover.
