Engine Bling
- Thread starter turbodave231
- Start date
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Dave, I folded in the throttle blade on my car the last time out. I looked through some data and there is approx 30psi differential between manifold PSI and the pressure on the throttle blade outside for approx .3 of a second after you lift. I'm going to the procharger blowoff valve for next year. I do think the HOLLEY 80MM throttle body blade being made out of billet AL is not as good as some others, I notice they all seem to use a brass appearing blade and may have helped led to the issue. 
Oh, and maybe turning up the boost also....
Oh, and maybe turning up the boost also....
I'm using a 100mm Kinsler aluminum throttle blade. So far so good. I think a good blow off valve helps keep the blade straight. Also, starting the engine with the throttle blade at an off idle position in case of an intake backfire helps too.Dave, I folded in the throttle blade on my car the last time out. I looked through some data and there is approx 30psi differential between manifold PSI and the pressure on the throttle blade outside for approx .3 of a second after you lift. I'm going to the procharger blowoff valve for next year. I do think the HOLLEY 80MM throttle body blade being made out of billet AL is not as good as some others, I notice they all seem to use a brass appearing blade and may have helped led to the issue.
Oh, and maybe turning up the boost also....
I went with 100mm because it was easier to match to a common up pipe size (4") and wiggins clamp size. I had to develop a variable pull throttle lever attachment though, to make light throttle opening more controllable. Without it the throttle was very touchy.
FlintBuick4Life
Active Member
- Joined
- Aug 26, 2009
- Messages
- 1,306
Nice! Maybe ill see that at next years Back to the Bricks in Flint or at the Dream Cruise in the D?
