Tpi article in GM High Tech
Tpi article in GM High Tech
I have been waiting for a follow up article for about 6 months and it finally has come out this month. Its called something old something new. This months is at the machine shop doing the heads and cam. I havent read it yet just glanced through it. Its a very technical article cant wait till its all done and see what kind of power it makes.
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From: Cypress, California
Car: 1989 GTA
Engine: 369 TPI
Transmission: 4L60E
Axle/Gears: 3.70 Nine Bolt
I'll have to pick up a copy. Thanks for the update. By the way I'm doing another TPI build up myself and it will be interesting to see who makes the most power. Hehehehe. I'm at 330RWHP right now as are others in our club. We are all upgrading our cars.
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Joined: May 2005
Posts: 40
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From: TEXAS
Car: 1989 firebird/91 tpi formula
Engine: 327 small block/305 tpi
Transmission: 700 R4
Axle/Gears: superior axles/3.42's
I was wondering if they were ever going to follow up on that. I almost lost hope. Thanks I'll have to grab a copy.
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Joined: Feb 2000
Posts: 7,015
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From: Schererville , IN
Car: 91 GTA, 91 Formula, 89 TTA
Engine: all 225+ RWHP
Transmission: all OD
Axle/Gears: Always the good ones
I'm curious to see how well it does.
I bet it suprises the hell out of everyone in the end.
There is a huge difference from the level and $$$$ we consider rebuilding here, compared to what runnin the same engine, say a TPI 305 in Stock Eliminator does. There was one there running 11's.
Everything is squared 90 degree from the crank, etc etc, lifter bores are centered on cam and bushed yadda yadda. That stuff ends up costing a fortune if you do it all. It will last a lot longer and make a noticeable amount in power over not doing it too.
Im interested to see the difference in the completed motor vs. when they tear it down and do coatings on the same engine and retest it.
should be good to see.
later
Jeremy
I bet it suprises the hell out of everyone in the end.
There is a huge difference from the level and $$$$ we consider rebuilding here, compared to what runnin the same engine, say a TPI 305 in Stock Eliminator does. There was one there running 11's.
Everything is squared 90 degree from the crank, etc etc, lifter bores are centered on cam and bushed yadda yadda. That stuff ends up costing a fortune if you do it all. It will last a lot longer and make a noticeable amount in power over not doing it too.
Im interested to see the difference in the completed motor vs. when they tear it down and do coatings on the same engine and retest it.
should be good to see.
later
Jeremy
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