how much hp and i expecting
03-03-2002, 12:30 PM
#1
Burning Brakes
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how much hp and i expecting
i am doing that rebuilt for a supercharger kit i have....
im putting in turbo 2 pistons (lowering compression), rods, turbo s fuel system, i'll have a msd 6btm retard ignition system, lighten flywheel, head reworked, etc....
i was thinking of something last night about the power i will be getting...and i need to know how much power can i expect with 7 psi.....just a estimated....and anyone or everyone just throw in their guess.....
thanks,
space
im putting in turbo 2 pistons (lowering compression), rods, turbo s fuel system, i'll have a msd 6btm retard ignition system, lighten flywheel, head reworked, etc....
i was thinking of something last night about the power i will be getting...and i need to know how much power can i expect with 7 psi.....just a estimated....and anyone or everyone just throw in their guess.....
thanks,
space
03-04-2002, 12:37 AM
#6
Burning Brakes
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i know....im trying to find a 12 psi pulley and im having no luck what so ever....
ive searched and called everywhere....
150 rwhp...whats the drive train loss?
thanks,
space
ive searched and called everywhere....
150 rwhp...whats the drive train loss?
thanks,
space
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03-04-2002, 12:45 AM
#8
Burning Brakes
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is a autorotor.....
i can try calling them....but this has been the ultimate bitch to find help on since the company that made it went out of business....
oh and i did try SFR....i emailed them lots of times but never got a reply back....
thanks,
space
i can try calling them....but this has been the ultimate bitch to find help on since the company that made it went out of business....
oh and i did try SFR....i emailed them lots of times but never got a reply back....
thanks,
space
03-04-2002, 03:16 AM
#11
Race Car
Hey space,
Try calling, SFR is or has moved and Tim has a new email, so maybe your timing was just bad. They answered all e-mails from me, quickly and informatively...
Try calling, SFR is or has moved and Tim has a new email, so maybe your timing was just bad. They answered all e-mails from me, quickly and informatively...
03-04-2002, 12:25 PM
#13
Burning Brakes
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they pulley is taken care of now...i have a company that will make me one (knock on wood) for like 85 bucks.....12 psi.... 
...i think im going to look at a rebuild on the SC so it can go higher boost then 12.....
5 psi with 8:1 compression..i think it will give me like a 30 % increase..not much of a corvette killer....and if those pistons will handle tons of power then i want it.... <img src="graemlins/burnout.gif" border="0" alt="[burnout]" />
i do have tubo s fuel equipment so fuel is going to be good and my AFC should allow me to fine tune it and my MSD 6btm will allow me to full with the timing....so why not get more power with it....
oh im also going to have nitrous on it also...just incase that corvette has a surprise for me....
thanks,
space (I need help) <img src="graemlins/c.gif" border="0" alt="[ouch]" />
...i think im going to look at a rebuild on the SC so it can go higher boost then 12.....5 psi with 8:1 compression..i think it will give me like a 30 % increase..not much of a corvette killer....and if those pistons will handle tons of power then i want it.... <img src="graemlins/burnout.gif" border="0" alt="[burnout]" />
i do have tubo s fuel equipment so fuel is going to be good and my AFC should allow me to fine tune it and my MSD 6btm will allow me to full with the timing....so why not get more power with it....
oh im also going to have nitrous on it also...just incase that corvette has a surprise for me....
thanks,
space (I need help) <img src="graemlins/c.gif" border="0" alt="[ouch]" />
03-04-2002, 01:14 PM
#15
Race Director
5 psi with 8:1 compression..i think it will give me like a 30% increase..not much of a corvette killer....and if those pistons will handle tons of power then i want it....
Remember that this would be 30% in an ideal scenario where your intercooler can remove ALL of the heat from compression. That is not just 100% efficient compression, but chilling it down to the same as the ambient air an NA car would ingest.
Also you have to take 30% of the power an 8:1 compression engine makes, not the stock 944NA compression of 9.7:1. So while the 944NA may make 147bhp (125 rwhp), putting 8:1 pistons in it may reduce power down to ...135bhp (115rwhp). Then you can take an ideal +30% increase of that for 176bhp (150rwhp).
Remember that this would be 30% in an ideal scenario where your intercooler can remove ALL of the heat from compression. That is not just 100% efficient compression, but chilling it down to the same as the ambient air an NA car would ingest.
Also you have to take 30% of the power an 8:1 compression engine makes, not the stock 944NA compression of 9.7:1. So while the 944NA may make 147bhp (125 rwhp), putting 8:1 pistons in it may reduce power down to ...135bhp (115rwhp). Then you can take an ideal +30% increase of that for 176bhp (150rwhp).