Hey h-ters as we speak i have 2.5 inch piping when i get turbo should i change it to 3 inch ............i herd 3 inch takes away low end torqe thanks

 

The bigger the better for turbo...3 inch is fine.

 

depends how much boost you plan on running, if its low boost a 3" wont help you all that much, but the more you put into it the more its gonna help...

make sense?

 

I got this from a post awhile back from a Garrett engineer. Here's my "cliff notes"...

Depends on the size of the exhaust outlet on your turbo. If it's 2.5" (like a T4), then stick with the 2.5" DP and flare it out to 3" a little ways down as gradually as possible. If you connect a DP with a significantly larger diameter than the exhaust housing on the turbo, it can actually create a pressure wave. The exhaust is coming out of the turbo at high velocity and suddenly it expands into a larger space. When the exhaust expands, it slows down and the exhaust exiting the turbo behind literally "runs" into it.

 

thanks guys

 

If your talking about exhaust, yes, if you mean charge piping bigger is not always better. The bigger the pipe, the more lag you will have. Depending on the size of your turbo and how much boost your running, different sizes will be more efficient than others.


[Modified by LS-hatch, 2:06 PM 3/3/2003]

 

Yes but he said hes got 2.5 now...i dont think hed have charge piping with no turbo. Hes talking about exhaust