New best this weekend, getting there..
kp...you're saying that you have basically stock timing 0 - 4500?
I've always been told that one was leaving alot on the table with a ProCharger by not adding alot more timing down low...we tried it after we got the forged motor in and actually picked up a good bit down low...
I've always been told that one was leaving alot on the table with a ProCharger by not adding alot more timing down low...we tried it after we got the forged motor in and actually picked up a good bit down low...
Centrifugal is way different than a turbo when it comes to timing, peak torque in mine is around 5500rpm and the boost keeps ramping up quick so most of the power is concentrated between 5500-7000rpm. I have stock timing at 4500rpm as well, something you cant do with a turbo car, apples/oranges 
After probably 1000 passes, several dozen head gaskets, using everything from 93 pump to Q16 and three different engines I have a pretty good handle where to put the timing. Of course you can go higher, head gaskets and pistons are cheap..
Turbo car tends to create a lot of backpressure at high RPM, that backpressure is almost like EGR and cools/dilutes the intake charge preventing detonation (and reducing power of course). While its true there is less chance of detonation at higher rpm, dont ever think there isnt enough time for detonation on a forced induction car..
After probably 1000 passes, several dozen head gaskets, using everything from 93 pump to Q16 and three different engines I have a pretty good handle where to put the timing. Of course you can go higher, head gaskets and pistons are cheap..
Turbo car tends to create a lot of backpressure at high RPM, that backpressure is almost like EGR and cools/dilutes the intake charge preventing detonation (and reducing power of course). While its true there is less chance of detonation at higher rpm, dont ever think there isnt enough time for detonation on a forced induction car..
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kp...you're saying that you have basically stock timing 0 - 4500?
I've always been told that one was leaving alot on the table with a ProCharger by not adding alot more timing down low...we tried it after we got the forged motor in and actually picked up a good bit down low...
I've always been told that one was leaving alot on the table with a ProCharger by not adding alot more timing down low...we tried it after we got the forged motor in and actually picked up a good bit down low...
Depends a lot on your compression and camshaft, if you lower the compression and put a larger cam in you can pck up some bottom end by adding more than stock timing.
damn, I love your car. I was looking in to buying it when you had it up for sale. If youever want to sell it, shoot me a PM. This sucker is flying. I love small cube set ups. Keep up the good work.
There goes another one! lol I'm sure you would be getting a very nice car if KP does sell it to you. Bob
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From: Knoxville, TN
I need to get to a 1/4 mile track again one of these days..
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From: Knoxville, TN
https://ls1tech.com/forums/forced-in...1sc-today.html
Not sure why this thread got brought back up..
I'd love to go to SDR but 330 miles each way is a haul, I've been there a few times and like the track but its a long haul.
