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700hp NA Katech 427 LT1 Grand Sport track car
We recently finished up this 427 LT1 Grand Sport and the results were amazing. 627rwhp and an intoxicating naturally aspirated sound through Corsa mufflers. It has a lightweight clutch and the rev match is unbelievable.
Build list: Katech 700hp 427 LT1 with dry sump system option Katech valve covers and coil brackets American racing headers Corsa exhaust with black diamond tips Dewitts radiator Halltech air intake system Katech carbon fiber diffuser with strakes TIKT harness bar Schroth harnesses RPS BC2 clutch Tilton slave cylinder DSC sport suspension controller DSC sport Tractive shocks TIKT brake ducts Forgeline GS1R wheels Hoosier R7 tires Photos by Andy Perry @Benkaptured on Instagram https://cimg1.ibsrv.net/gimg/www.cor...d592e1d6a8.jpg https://cimg3.ibsrv.net/gimg/www.cor...129f7c55ad.jpg https://cimg4.ibsrv.net/gimg/www.cor...5c5da5fd48.jpg https://cimg5.ibsrv.net/gimg/www.cor...e286be9ff9.jpg https://cimg6.ibsrv.net/gimg/www.cor...fb1961661a.jpg https://cimg7.ibsrv.net/gimg/www.cor...e1f6c324ea.jpg https://cimg8.ibsrv.net/gimg/www.cor...75afc8ffd3.jpg https://cimg9.ibsrv.net/gimg/www.cor...0e179315ec.jpg https://cimg0.ibsrv.net/gimg/www.cor...d7be2454aa.jpg https://cimg1.ibsrv.net/gimg/www.cor...22817beb34.jpg https://cimg3.ibsrv.net/gimg/www.cor...6d9b639557.jpg A professionally produced build video is in the works, but here is a little teaser: Build video finished: |
This is AWESOME!
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And there it is. The perfect Corvette.
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Agree, the perfect Corvette. This is what the Z06 should have been!
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Dope.
Agree this should have been the Z06. |
Cracking work chaps! Sounds lovely from the vid. Have you got any weight data for the car? Be nice to see how much lighter than a Z06 it is.
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Wow, nice build. Looks like a monster.
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Sounds awesome.... What cam?
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This is what I need to do with mine, after its paid for lol
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Originally Posted by chuntington101
(Post 1595048941)
Cracking work chaps! Sounds lovely from the vid. Have you got any weight data for the car? Be nice to see how much lighter than a Z06 it is.
not much fuel in it at the time. |
Originally Posted by Suprafied
(Post 1595051368)
Sounds awesome.... What cam?
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Very nice. How was the install of TIKT harness bar?
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I am proud to say, this black beauty is sitting in my garage.
I had about 450 miles on it since its arrival. I am in awe of this build, I'll say Jason, GM and I nailed it!!! It is, in my humble opinion the perfect corvette for street and track. I have had a dedicated (Katech) track attack car, however, considering my restricted life schedule, access to nearest track etc., I wanted to enjoy this car more than a dozen days a year. Anxiously awaiting July 8th for first open track day. This car shares garage space with my 15 A8 Katech stage 3 ZO6 and an 08 built ZO6 so I do have some baselines for comparison. So far two things stand out the most, obviously the engine and less expected, the DSC controller matched with the R/T Tractive shocks OMG!!! I must say the 17 GS matched with Katech's 703/638 427 LT1 is as you would think, amazing. It is actually much more street friendly than I expected, but it is a Jekyll and Hyde. Mr Hyde is but a small fraction of accelerator pedal away, when tipping into the throttle and the cam hits its happy spot, the car is just clawing for traction, the perfect torquey feel for the track, corner exit with the slicks is going to be a riot, and man this thing revs LOL. We put in an RPS billet carbon twin with Tilton slave and the effect of this combination with the active rev match is un friggin real!! I could go on and on but have to go now. |
Have you tried DSC Controller without the Tractive shocks?
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Originally Posted by village idiot
(Post 1595081520)
Have you tried DSC Controller without the Tractive shocks?
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Originally Posted by rikhek
(Post 1595044668)
Agree, the perfect Corvette. This is what the Z06 should have been!
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Originally Posted by Katech_Jason
(Post 1595052676)
3400lbs
not much fuel in it at the time. I would have thought that dumping the supercharger and the heat exchanger would have been more than that. |
Originally Posted by JoesC5
(Post 1595082347)
About 30-35 pounds savings over a stock Z06's curb of 3524 pounds(with a full tank of fuel)?
I would have thought that dumping the supercharger and the heat exchanger would have been more than that. You can save 35lbs by switching to girodisc rotors alone. I bet those wheels alone saved 35lbs. |
Originally Posted by JoesC5
(Post 1595082347)
About 30-35 pounds savings over a stock Z06's curb of 3524 pounds(with a full tank of fuel)?
I would have thought that dumping the supercharger and the heat exchanger would have been more than that. |
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