Thank you!!

How many of us watching this have a C4? I'm betting a lot

So... who else that currently owns a C4 (I have a '95) wants to put 'em on a track against a few other C4's after watching this...?

Wow - @ 20:18 Did not expect the Corvette to go airborne in this race!

Thank you for this. I was in this race. It was great going down memory lane.

My man Peter 💪 great Ole entertainment

Stu and Scott both were part of the 8 drivers who broke the long standing world speed record in the 90 ZR1 at Fort Stockton , Texas .

Somehow this was more like a talkshow than showing a race unfortunately.

They were so potent they got their own series. I soooo miss my TPI powered cars.

Beautiful cars!

Does anyone know what happened to Kendall's car at the end when the butt was sagging? Broken leaf spring?

Please post more of these. They are great!

The support events for indycar Formula Atlantic, super vee ,Trans am and this series were often more entertaining than the indycars

Thanks for this, enjoyed it. Love the cars, look great.

Classics

These had the 'Tuned Port Injection' (TPI) 5.7L (350ci) engine, known by its Chevy engine code 'L98', and normally rated at 245hp / 330tq in the Corvette. Not a bad engine at all, actually. It makes serious torque from literally idle-speed on up. You have to go out of your way to even approach catching it 'flat-footed'; there is always power available. And it's very quick-revving and responsive. At the high end, its peak of 245hp is made at 4,300 RPM (with the standard exhaust). So it's a small-block Chevy that _acts_ like a big-block Chevy. TPI is a cool system, technologically on-par with contemporary German Bosch 'Motronic' systems, and it wrings a very competitive combination of low emissions, fuel efficiency, and power out of the ancient (1955) but compact and lightweight Chevy. For the Corvette Challenge race cars, I'm pretty sure all they did was make sure the engines were flawlessly built in fully stock configuration, including the exhaust manifolds (which are actually halfway-decent little short-tube headers). In this case, flawless means port-matching of the complete intake system, balancing the rotating assembly, and making sure all the measurements and tolerances were as nearly perfect as is possible. They were dyno tested to verify that power output was equal. The only mod was a completely free-flowing exhaust system, from the manifolds back. This combination brought the L98 up to the claimed ~300hp of the race cars. Sounds like they were making peak power something like 500 RPM higher - so about 4,800 RPM instead of 4,300. In race trim, with the added safety equipment, they probably weighed about 3,300 pounds (1,500 kilos) - plus driver. With a sophisticated and well-tuned suspension, world-class brakes, very wide stance and tires, low CG, and a fairly short (96in / 244cm) wheelbase that gave nimble handling, the C4 Corvette so utterly dominated its class in American SCCA racing (against all the world's best opposition) that they finally just created the Corvette Challenge as a separate, spec-Corvette class.

Excellent, thanks

Detroit was a very decent track and offered good Races both in F1 and Imsa and support events.😊

Uhm... remembers IROC ... Corvette Is One of my favorite Cars. Especially this peculiar version.❤

Спасибо, очень интересная гонка!!!

I’m planning a race on Xbox S/X with the 95 because that’s the closest we have in the game on Forza Motorsport

Jim you running in this race

The A/C units on modern Vettes make 300HP alone.

I wonder where are these cars now it would be cool to own one

300 hp from the race engine...oh my

No traction control, no power steering, manual pit crew of two. Now this is racing !

*promosm* 😳

Also am just curious if you have any more Trans AM races from 1998 to 2000 as there's not much on here. No worries if you don't have it and thanks for putting out what you have..

Wow that was awesome to watch. Great track and great driving. Thanks Jim, you are doing great work with the videos.

Another 1998 Trans-Am race found. Thank you!

Awesome to see a 1998 race make it on here. Many thanks and enjoy the rest of the Holiday season.

Love seeing more programming from the days of Speedvision/Speed Channel get preserved! Please upload more of these broadcasts if you have them! They're truly appreciated!

This is awesome. Love the full length races.

This is great. Old VHS recording. Could even see the tracking being adjusted. I love these older races. Thanks for posting this.

thanks for posting, I'm not sure I ever saw it! My first "Pro" race in an under-prepared Camaro!