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The last time I checked the oil, was at 4046 miles and the engine had used 3.5-qt. of M1 5W30.

Today, I have good news and bad news to report. The good news is that, now that I've got nearly 4100 miles on my rebuilt Katech Street Attack LS7, I'm starting to hammer it andthat motor is bad-assat wide-open-throttle. It pulls hard to the rev limiter with little or no knock retard which is...

Best fuel mileage I ever saw with my C3 was just a scosh less than 17-mpg average on a drive from California to Arizona keeping it at the speed limit. The engine was a 460-in BBC with a self-tuned 850-Holley. Transmission was a Richmond single-overdrive, six-speed with a 3.08-rear end.

It is likely that a factory service manual is the only place you are going to find a wiring diagram and, yes, you can get them from CAC sponsor, Zip Products. The 88 FSM can be ordered here.

Besides the "savior of the Corvette", Jim Perkins was many things to Chevrolet true believers during his tenure as Chevrolet General Manager. Back when I covered a lot of new Chevrolet products, I met Mr. Perkins many times. He was one of the few high-level GM executives who always remembered my...

How about a pic of your car? When did you get it? What's the SN?

On a straight, flat road at highway speed, what happens when you apply the brakes to stop?

If you went from 2.72 to 3.36, your engine is running faster at highway speed and that might be part of the reason why it's running at 220 on the highway. That said, it does seem a big high considering the warm-but-not-hot ambient. First, check the accuracy of the car's temp gauge with a known...

A "straight answer"? :boogie My WAG is: add at leastsix months to the '19 Detroit autoshow date.

After reading the article and noticing the rear deck spoiler and the seemingly larger front end air intakes, my WAG is what's in that footage is a higher-performance version of the C8. Such a car would be faster, hence the bigger rear deck spoiler and more powerful, hence the larger air intakes...

One way we, here at the CAC, can help is if you can describe your vibration problem.

Just posted some new imagery from the last road trip.

They are something you can correct yourself if you have: 1) Factory Service Manual or a subscription to GM ESi. 2) A scan tester which supports a 2009 Corvette's chassis computer 3) Basic electrical system service experience 4) Tools needed to work on the car's electronics Otherwise you need...

On an engine with 140,000 miles, there are any number of issues which could could cause hesitation during acceleration. You'd have to post a little more detail about the hesitation before anyone here could offer a credible answer. Is it off-idle? Is it a hesitation once the engine is already at...

Back from Katech, Again. Second Time a Charm? For the last three months there hasn't been any Blue Bullet blogging because the car was at Katech a lot longer than expected. Last summer, after they pulled the motor out of the car and tore it down, Katech decided to set the rebuild aside while...

If you saw H41 that's a history code for loss of ECM serial data. Without seeing the car, my wild-assed guess is you have a wiring and connections problem somewhere between the ECM and the IP display which is causing the IP display to loose the signal from the ECM. There also a chance the...

Pease, post the aero numbers for '77 and '92 as well as your source for those numbers.

150 will definitely be enough. Because of its rotten aerodynamics, a '77 without some aero mods, would be frightening to drive over about 130.

The footage does not explain why anyone would want to remove MagnaRide.

There were no manually adjustable shocks available on C4s I'm going to guess that during the conversion to right hand drive, SRC was removed. You've got the big bars. Now check the spring codes. It needs to be FHB in front and NYU in the rear. Also check for HD front lower control arms. They...