Even though the torque graph on that final pull was incorrect I had to look at and laugh, the torque just jumps by about 450lbs in a matter of a couple of rpm, imagine that wooooo

 

great numbers and nice setup. def numbers i would like to see someday lol

 

Really insightful. A truly wise man! JB got right to the root of the problem.

If Robert Young would have had this dual-gated manifold installed on his stroker motor with Black turbo, then he wouldn't have needed the bandaid solution of placing a WG on the DP which only functioned as a post turbo pressure relief valve.

EDIT: Now Mikey is gonna have to buy one of these dual gated puppies! LOL

 

To extend on what JB is saying... I think the increase in power results from not the increased flow across the turbine wheel and "more boost" but less pre-turbine pressure forcing its way into the combustion chamber... raising cylinder temps and reducing the VE... This is evident by Junior saying he could run more timing advance IMO.

just my 2 cents.

IIRC 9sec9 ran a 9 or 11psi gate spring on his tial so that it was open....literally all the time. Goes to show you can have a 38mm HOLE in your ish and still generate boost....

 

Yup, R/T, if you can reduce back pressure between the exhaust valve and the turbine then it goes to reason that you'd get more complete exhaust stroke scavenging, less reversion, lower cylinder pressures, and lower combustion chamber temps, allowing for a cooler and more efficient intake stroke,,,,and you can thus run more initial timing w/o inducing preignition. You guys(Mikey, R/T Ernie, JB, Aaron, Mike@ETS, et. al.) in Washington State must be truly growing and smoking ...The Right Stuff! LOL

 

What he said

This is the same angle I have always taken with all the Subaru's I tune. Get rid of those tiny 7cm and .63 housings that cause all the EBP to be super high and the results are more reliable and consistent running cars. Back before we had options of 8cm and 10cm stock location turbos we would run 40+mm EWG to get rid of the back pressure in the system, the cars would pick up tons of Hp and TQ.

Jr

 

damn son

 

Hows your beast doing? When we tuning it!

 

damn junior I'm going to have to drive all the way to NJ now to get my next tune! when I was getting my car fixed at The Shop and saw Visconti get out of my car I was quite surprised. Last time I was there Jimmy said you still tune for him if people request u or is that done now?

good numbers by the way!!!

 

Nice gains.