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Discussion starter · #1 ·
Stage 2 will work, but more for drag applications. You would lose alot of HP and TQ in low to mid RPM
Havent tried these cams on a NA car but should work as good. Probably wont show as much HP gain.
 
are those specific turbo cams? I thought cams that were designed for normal cars, dont work well for turbo jon? With overlap and all, i thought u loose boost or something...im guessing thats ur car, the gains are awesome, but i dont understand.

U know what i would do? Just crank up the boost, cheaper
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But those gains are awesome man, glad ur doin more stuff to the focus

PS...how much boost is that at jon?

[ 11-26-2001: Message edited by: nazthug ]</p>
 
Discussion starter · #3 ·
Boost is at 8 psi. I have gone to 14 but the gains are not as great and not needed for street.
Cams for NA cars will work fine with turbos..to a certain degree. High duration cams are not good for street applications, but I have used some in drag cars. The stage 1 cams are still fairly mild grinds.
Cranking up boost pressure will increase HP, but also heat, cylinder pressures, etc.
 
i hope to br putting out those exact numbers when i get my turbo, hopefully fmax, at 7psi, NO MORE on stock bottom end, and even then might rebuild. I want about 200-220WHP and about the same torque, with plans for more later. Hell, your car at 190whp(remember
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) was quick enough for me...at least for some time
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Well the usually thought is that for a turbo car, you usually don't want a lot of overlap or duration. They say that turbocharged cars like lift, but with minimum duration and wide lobe separation. Some of those ideas can be thrown right out the window on some applications. But you will never know if a combination will work if you try.

I'm glad Jon was able to test these cams with his setup. I wonder how well they would work with the AC turbocharger set-up, and if the profiles would match that turbos characteristics? It can even make more power or less.

Kuroyama-san, what size are the injectors you are running, and if they're stock, what size is the extra injector?
 
Discussion starter · #6 ·
Here is some testing with the Crower cams number 62502 stage 1. An Average of 23 ft lbs TQ and 21 HP after 3200 RPM was gained.
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Discussion starter · #10 ·
I am not using the AIC anymore, but that injector was a 550 cc/min. Currently I am running 440 cc injectors as mains. Will go to 550's when I start increasing power.
 
Discussion starter · #12 ·
Yes, I retuned A/F slightly. With the cams A/F actually went alittle richer. I retarded the exhaust cam also. -2 degrees
 
Man....that Cam done a great job of keeping the power in the same range as a stock engine. as well as nice gains across the main powerband.

smooth and steady. no big spike....good design..

Note: Mark a cam set down for the Turbo Build....
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<blockquote><font size="1" face="Verdana, Arial">quote:</font><hr>Originally posted by FastraxTurbo:
High duration cams are not good for street applications, but I have used some in drag cars. .<hr></blockquote>

Oooooo, but that lopey idle sounds sooooo good. My dads new motor has 612 lift with 300 or somthing duration at 100%. I cant remeber what it is at .50, but it lopes hard...good stuff.
 
Jon what do you think the gains would be for us running an aerocharger, no larger inectors, and no Pectel.
Safe???
 
<blockquote><font size="1" face="Verdana, Arial">quote:</font><hr>Originally posted by FastraxTurbo:
Here is some testing with the Crower cams number 62502 stage 1. <hr></blockquote>

62502 is stage 2

62501 is stage 1

62503 is stage 3

are you sure its is 62502?
 
Discussion starter · #17 ·
In crower's catalog, the '01 cam is labled "stock replacement", the '02 is stage 1, and '04 - stage 3 - 3/4 race, and '05 is stage 3 full race.

With the Aerocharger, should work fine. with no tuning and upgrades, I think gains will be around 10-12 HP
 
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