3" downpipe on pt88?
Thread Starter
10 Second Club
iTrader: (27)
Joined: Nov 2006
Posts: 1,905
Likes: 0
From: Connecticut
3" downpipe on pt88? How bad will it hurt the performance of this turbo if I were to run a 3" downpipe to an open dump? Looking at my car today Im not exactly sure if I can get a 3.5 or 4" downpipe down by the engine on either either and theres no other way other than next to the engine to rt it. I plan on running 10-15psi on the street.
How bad will it hurt the performance of this turbo if I were to run a 3" downpipe to an open dump? Looking at my car today Im not exactly sure if I can get a 3.5 or 4" downpipe down by the engine on either either and theres no other way other than next to the engine to rt it. I plan on running 10-15psi on the street.
You may end up fighting some excessive exhaust pressures. You better go with a 60mm wastegate to help fight over boost if you can't figure out a way to get a bigger pipe out of there.
Thread Starter
10 Second Club
iTrader: (27)
Joined: Nov 2006
Posts: 1,905
Likes: 0
From: Connecticut
Im going to be using twin 38s. Hopefully I can fit the 3.5" in there..its just a matter of getting in btween the engine and the mounts after that theres a TON of room.
Trending Topics
Thread Starter
10 Second Club
iTrader: (27)
Joined: Nov 2006
Posts: 1,905
Likes: 0
From: Connecticut
Ill have to get a picture once I put the new mounts in so you can see it with extra room....I just remembered that I ordered a new oil pan and theres going to be even more room under there. I think I might be able to get away with the 3.5" after all. now my only concern is fitting everything else in front of the turbo. I think I have a total of 17" of space from the front of the wp pulley to the end of the bumper. And im going with a 4" core i/c.
Last edited by Snyper; Nov 4, 2009 at 11:48 PM.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
run a 4 into a 3 to wherever..and then a e-cutout with a 2.5 inch pipe or 3 inch pipe out of the 4 inch pipe and dump wherever up front you want...you can have it quiet whenever you want and then open it up and spool
Thread Starter
10 Second Club
iTrader: (27)
Joined: Nov 2006
Posts: 1,905
Likes: 0
From: Connecticut
Thats how my NA setup is. 3" cutout into stock exhaust. I plan on running whatever size pipe I can fit (3.5 hopefully) into a cutout into the stock exhaust.
