Thread: Pulley drop w/ minimal gain

i think im going to go with a 2.8 for my E85 setup and try and get it to run the 3.1 kr free on pump with stockish timing tables.

Why increase boost?!? Why not make power elsewhere?!? High Flow Catalytic Converter (or "Test Pipe"...basically, a piece of exhaust pipe that's custom cut & prepared to be swapped into the PLACE of where a catalytic converter SHOULD be)...& that's just if we're talking on something you need to drive as a daily driver, if we're talking organized track/drag strip/whatever, then justy open up those headers (in THIS context) Headers & Exhaust Manifolds are the same thing

Originally Posted by DEM0N

Why increase boost?!? Why not make power elsewhere?!? High Flow Catalytic Converter (or "Test Pipe"...basically, a piece of exhaust pipe that's custom cut & prepared to be swapped into the PLACE of where a catalytic converter SHOULD be)...& that's just if we're talking on something you need to drive as a daily driver, if we're talking organized track/drag strip/whatever, then justy open up those headers (in THIS context) Headers & Exhaust Manifolds are the same thing

Hmm, headers and manifolds are the same thing?

Ok.

Test Pipe in place of a converter?

Hmm, because the factory converters on these cars actually aren't restrictive just like the catback. So, that would be a 1CHP gain and some noise getting rid of it.

Demon, you need to learn the platform.

I sure the stock pump and wiring becomes a restriction real soon from the point that I am at but for me it is not. My wideband sits right where I want it all the way through the 1/4mi, doesnt lean out or lose fuel pressure and the only fine tuning ive done was timing. As long as the LTFT's are at 0 its dead on just with the base % changed for the 60's then the 30% for the E85. I had the exhaust off where the catback adapter goes on the SD's BTW, so about 18" of open 3" pipe off the headers. Just enough to get an accurate read off the WBo2.