What sorta gains could I get with...
Thread Starter
Former Vendor
Joined: Jun 2001
Posts: 7,204
Likes: 6
From: St Marys PA
What sorta gains could I get with...
a sc on my 434, with compression at 11.5:1. I know that is high so I want to know what sorta power I could get.
N/A power I know all about but this sc and turbo stuff is something new?
Any very large inch motors out there running these SCs?
My car is setup for power n/a with about the best stuff a person can buy, so lets hear what you think.
What system is best...
Getting the itch to learn something new and maybe I can ride a wheelie all the way to the finish line.
Thanks.
N/A power I know all about but this sc and turbo stuff is something new?
Any very large inch motors out there running these SCs?
My car is setup for power n/a with about the best stuff a person can buy, so lets hear what you think.
What system is best...
Getting the itch to learn something new and maybe I can ride a wheelie all the way to the finish line.
Thanks.
Instructor
Joined: Apr 2004
Posts: 157
Likes: 1
From: Woodstock on
To compensate for your high compression you can use very high octance.
Theoretically, 14.7 psi will double your hp. Then you need to take into account losses due to supercharger pulley losses and increase in temperature of air coming out of the blower.
Theoretically, 14.7 psi will double your hp. Then you need to take into account losses due to supercharger pulley losses and increase in temperature of air coming out of the blower.
Melting Slicks
Joined: Jan 2002
Posts: 3,293
Likes: 79
From: Jackson MI
I wouldn't think that you could run more than 5-6psi with out having some major issues, for a good supercharged engine you would want 8 or 9:1 compression. Unless of course you want to start running some type of ethenol or methenol.
I'm guessing that you have a large overlap cam in the car as well. These kind of cams aren't the norm for a forced induction setup.
It would be easier and a lot less work just to spray a 100 shot on top of what you have instead of going through the trouble and cost of setting up a supercharger and all the tuning for a similar gain.
I'm guessing that you have a large overlap cam in the car as well. These kind of cams aren't the norm for a forced induction setup.
It would be easier and a lot less work just to spray a 100 shot on top of what you have instead of going through the trouble and cost of setting up a supercharger and all the tuning for a similar gain.
Team Owner
Joined: Mar 2001
Posts: 30,858
Likes: 293
From: Boston, Dallas, Detroit, SoCal, back to Boston MA
If you run in a alcohol you could keep the compression and run a lot of boost
I don't know if you want to go down that road.
You're looking at a big SC to feed that many cubes.
I don't know if you want to go down that road.
You're looking at a big SC to feed that many cubes.
Melting Slicks
Joined: Jun 1999
Posts: 2,872
Likes: 3
From: Wilmington NC
15 psi on alcohol would be right up your alley! E85 likes compression very similar to Methanol and it runs nice and cool.. if you have E85 at a pump near you then you are all set, I'd say let her rip. figure at 15psi with a properly sized compressor unit you can count on a solid gain of ~85%+ of your current power level. I know you rock a solid axle out back but I imagine you'll find the next weakest links!
Chris
Chris
