To high comp?
Thread Starter
Melting Slicks
Joined: Oct 2000
Posts: 3,010
Likes: 1
From: Sweden/Stockholm
To high comp?
Hello
My engine is being rebuild as we speak. I was not planing on going FI. But a good deal on a procharger changed my mind, you know how it is
Well I wounder how high boost I can run "safe".
My engine:
SCAT 9000 nodular iron crank
SCAT fordge i-beam rods
PROBE light wieght forge pistons.
TF 23 cnc ported heads.
HOT CAM KIT
LT1 intake
The comp is 10:1.
Perhaps I should forget about going FI ??
[Modified by devilfish, 1:09 PM 7/2/2004]
[Modified by devilfish, 1:10 PM 7/2/2004]
My engine is being rebuild as we speak. I was not planing on going FI. But a good deal on a procharger changed my mind, you know how it is
Well I wounder how high boost I can run "safe".
My engine:
SCAT 9000 nodular iron crank
SCAT fordge i-beam rods
PROBE light wieght forge pistons.
TF 23 cnc ported heads.
HOT CAM KIT
LT1 intake
The comp is 10:1.
Perhaps I should forget about going FI ??
[Modified by devilfish, 1:09 PM 7/2/2004]
[Modified by devilfish, 1:10 PM 7/2/2004]
Le Mans Master
Joined: Jan 2003
Posts: 8,596
Likes: 19
From: Portland Oregon
Re: To high comp? (vvv90)
I would say 6 PSI maximum boost at that compression ratio. Seeing how the average kit these days are produced for late model vettes and F bodies, and they run similar compression or more. But if you are building the engine now, and plan for a blower. Why not drop the compression to a blower friendly 8.5 or 9:1?
[Modified by tjwong, 2:38 PM 7/2/2004]
[Modified by tjwong, 2:38 PM 7/2/2004]
Le Mans Master
Joined: Feb 2002
Posts: 5,970
Likes: 20
From: San Marcos Texas
Re: To high comp? (LT1Vetteguy78)
6-8psi with intercoolers and a good tune. Im in the same boat. 10.4/1 comp. I'm planning an 8psi kit later on. You could probably go 10psi with an aftermarket Dfi and alot of tuning, just alot more work involved(and$$)to make it safe.[Modified by chriswtx, 11:48 PM 7/2/2004]
[Modified by chriswtx, 11:48 PM 7/2/2004]
Race Director
Joined: Feb 2002
Posts: 11,268
Likes: 14
From: Honolulu, HI
Re: To high comp? (StealDads67)
Yea like going into the motor to get the compression ratio lower....
Yep, that's about it, unless you're saying "tuning" as in pulling an a$z load of timing which will pretty much make 10psi useless for creating more HP.
