How well does the TPI air intake system flow?
Thread Starter
Joined: Nov 2005
Posts: 1,946
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From: Sacramento
Car: 91 RS
Engine: 350 TBI
Transmission: WC T5
Axle/Gears: 3.42 Posi
How well does the TPI air intake system flow?
At what horsepower would you say a stock TPI intake setup becomes a restriction? I'm talking about the plastic piece that goes over the radiator.
Supreme Member
Joined: Aug 1999
Posts: 1,053
Likes: 3
From: San Diego, CA
Car: 87 Buick GN
Engine: 3.8L (231 cid) V6
Transmission: 200-4R
Axle/Gears: 10 bolt G80/ 3.42
I honestly don't think it's as restrictive as it looks. Traxion here ran mid 11s at 117 N/A using the stock Y-intake. But I believe it was modified for more flow where it meets at the Y...you might wanna PM him for details.
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From: south Louisiana
Car: 1985 Z28
Engine: 85 L98
Transmission: 700r4
Axle/Gears: stock 10 bolt-3.73 eaten posi
youll have problems with the tpi manifold being to restictive, before the flum becomes the problem.
My buddy just ran his pretty much stock L98 (exhaust & 1.6 rockers) on the dyno the other day. With the K&N filters in, he put down 206whp and 286wtq. He then took the filters out (he has gutted air ducts, but stock Y-intake) and ran again with a surprise. 212whp and 290wtq. With just the air filters out it put down an extra 6hp and 4tq. He's changing the stock y-intake setup for a custom piece, prolly gain another 6-10hp.
Thread Starter
Joined: Nov 2005
Posts: 1,946
Likes: 0
From: Sacramento
Car: 91 RS
Engine: 350 TBI
Transmission: WC T5
Axle/Gears: 3.42 Posi
I ask because I want a better way to set up my TBI intake setup...still using the stock air cleaner and single snorkel intake from the original L03.
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