Downside to 3" IC piping ?

[95 TsiAWD]

Are there any downsides to having a 75mm throttle body and 3" shortroute IC piping on a mostly street driven vehicle ?

 

[Black95TSIawd]

maybe the pipes are TOO big and you lose velocity. Plus that 75mm tbody aint doin you nothing on a stock 2g head.

 

[andymoraitis]

I'd have to agree with what Black95 mentioned about losing velocity. The only way I can see this working is if you had a monster of a turbo, and a motor that flowed an amazing amount of air.

Andy

 

[na_turbotalon]

It'll take up a lot of room, could be a pain in the ass later on.

 

[Amar1995]

if you are at the level where you need 3 inch plumbing then the only downside is trying to keep everything else togeather

 

[trbotaln]

if you are at the level where you need 3 inch plumbing then the only downside is trying to keep everything else togeather

I agree

 

[95 TsiAWD]

The intake is going on a 6bolt 2.3 stroker with a p&p'd 1G head hks 272s.

The turbo I will be using is the GT4067.

FMIC core is the Spearco 2-216.

I just want to know if 3" will be overdoing it with that setup.

 

[Lunch_Box]

I will be running a 3" upper pipe on my 2.4L and a FP 3575 turbo.

 

[ClipseT96]

I run a PTE PT67 on a fully built 2.0 and only use 2.5 Waiting on my magnus intake w/ 75mm tb. Think 2.5 is suffcient enough.

 

[guitarXgeek]

I run a PTE PT67 on a fully built 2.0 and only use 2.5 Waiting on my magnus intake w/ 75mm tb. Think 2.5 is suffcient enough.

I agree. However, I think it wouldn't be too bad of an idea to run the last section of the upper intercooler piping 3" (like if you have a blow-thru setup, just make that last section of piping 3"). Just use a 3"-2.5" reducer coupler to connect it to the 2.5" piping. This way the 3" would match up closer to the 75mm throttle body.

 

[ClipseT96]

good thought. Would love to see flow numbers of both.

 

[Amar1995]

The intake is going on a 6bolt 2.3 stroker with a p&p'd 1G head hks 272s.

The turbo I will be using is the GT4067.

FMIC core is the Spearco 2-216.

I just want to know if 3" will be overdoing it with that setup.

That is some serious harware Like my pappy always said:"Do it right the first time, do it once." Go for the three inch plumbing