E Force boost
Thread Starter
Melting Slicks
Joined: Oct 2009
Posts: 2,004
Likes: 392
From: Long Island New York
E Force boost
15 Stingray stock engine with stage two E force 3 1/4” pulley, 95mm TB, TSP 1 7/8” long tubes, GM performance CAI, MMS wild catch can, Alky single nozzle 15gh. Cars recently only 510whp on a dynojet, bypass was hung open like 1/4” and was making 5-8 psi that’s now fixed and averaging 10 psi. It’s made 541whp on a dynamite dyno before 95mm TB, meth and headers. I have a 3” pulley sitting on my work bench and have been considering putting it on. Should be good for another 1.5 psi. Would this be okay with me running meth or a bad idea?,
Last edited by BlueDevilZ51; Apr 21, 2020 at 04:37 PM.
Thread Starter
Melting Slicks
Joined: Oct 2009
Posts: 2,004
Likes: 392
From: Long Island New York
I gave it a shot with the new pulley today. Car was faster then ever but it was getting a consistent 5* of KR so already switched back to the 3 1/4” pulley with no knock. I did try to up the meth controller when using the 3” pulley but didn’t help. I’ll play it safe and stay at my 10 psi.
Thread Starter
Melting Slicks
Joined: Oct 2009
Posts: 2,004
Likes: 392
From: Long Island New York
I had two issues with boost. The first issue I had was I crushed the vacuum line to the bypass valve under the blower. That was keeping the bypass from getting vacuum at idle and cruise and was keeping the bypass closed. The second issue I had was the bypass assembly was bent down from me laying across the engine when I had done previous work. That kept the Bypass from actuating smoothly and wouldn’t allow the bypass door in the blower to fully close, creating a boost leak.
Last edited by BlueDevilZ51; May 3, 2020 at 08:59 PM.
