Speaking of modifed TPI, what the hell is this?
Thread Starter
Joined: Sep 2004
Posts: 5,906
Likes: 240
From: Chicagoland Suburbs
Car: 1989 Trans Am GTA
Engine: LT1, AFR 195cc, 231/239 LE cam.
Transmission: M28 T56
Axle/Gears: 3.23 10bolt waiting to explode.
Speaking of modifed TPI, what the hell is this?
It looks like someone took the lower base of an HSR, and the plenum from a TPI and did some serious modification.
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Supreme Member
Joined: Sep 2000
Posts: 1,398
Likes: 81
From: USA
Street and Performance had that system out long before Holley's StealthRam - they're pricey and won't just sell the intake. The first system I saw like this was an SLP prototype called the "Short Ram" (back in 1988 or so). It was a tunnel ram modified for EFI with a modified TPI plenum on top, but it never made it to production. It was very similar to picture you posted,,, just rough,,, very rough.
Joined: Jun 2003
Posts: 5,028
Likes: 78
From: Desert
Car: 1991 Z28 Vert
Engine: 383 single plane efi
Transmission: T-56
Axle/Gears: 8.8 with 3.73s
Yea it is made by street and performance. You never see them except on old hot rods. Most people do not buy them because they are not worth it. Not for the price or power. With options like the HSR or Super Ram or or Ram Jet. I only see them on cars owned by old guys with too much cash who want all the bling under their hoods they can fit. I just shake my head and walk away.
Thread Starter
Joined: Sep 2004
Posts: 5,906
Likes: 240
From: Chicagoland Suburbs
Car: 1989 Trans Am GTA
Engine: LT1, AFR 195cc, 231/239 LE cam.
Transmission: M28 T56
Axle/Gears: 3.23 10bolt waiting to explode.
No its not. Check out the website that goes with the pics. Those are modifed TPI plenums.
Joined: Feb 2001
Posts: 8,494
Likes: 413
From: Sophia, NC
Car: 2016 Camaro SS + 1986 Z28
Yep, I have the catalog. I was looking into the idea just as another alternative to the normal upgrades. Unfortunately, they only sell it as a complete system, not just the plenum/base.
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