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Engine Upgrade for 1990

qblue90

Active member
Joined
Jun 2, 2008
Messages
43
Location
S.E. Michigan
Corvette
1990 Quasar Blue 6 spd,Z51,FX3,J55,GT7
For no other reason than I wanted to, I called Clay at TPIS and had him build me a 383 around the ZZ-9 cam. I don't have it yet, but it was on the dyno last week. It makes 458 lb/ft of torque at 4500rpm and 458 hp at 5900. At 2700 rpm torque is 419 lb/ft and stays above that. What do you guys think I can expect quarter mile wise and over-all driveability in a 6 speed manual with 3.33 gears? It should arrive this week. I can't wait. I am keeping the original L98 as it only has 58K miles on it. Should be fun. MiniRam intake and full headers too!!
 

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It's in and it's awesome!!
 

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How does it run? With the 6 speed it should be strong.

Tom
 
It is the now the fastest car I have ever driven. The folks at TPIS have outdone themselves. The sound is equally impressive. The Corsa exhaust is super-agressive when pushed, but still whisper quiet at cruise. No drone at al . It is really hard to believe. I am certain that this ship will make the Kessel run in 12 parsec's or less. It is going to be the longest winter ever this year.
 
Nice. I'm jealous. Best of luck with the new mill.
 
I would also like to point out that just as TPIS said it would be, the engine is as docile as a lamb if you don't put your foot into it. I was concerned that my wife might have trouble driving the car after the engine upgrade, but TPIS assured me she would not. They were spot on. I highly recommend TPIS if you are even remotely considering any engine upgrades, they are completely professional in my opinion. It's not even officially winter yet and I already can't stand the wait for spring....
 
We decided that she was worthy of a name / personalized plate. Here is my beautiful wife with the honor of affixing her name plate. Get it? We felt it was an appropriate name.
 

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