Tbirdman951

I just ran my stock 2006 GT 5spd at the Texas Mile. My best run was 139 mph. The car seemed to bog shifting to 5th gear at 6000 rpm. Should I have stayed in 4th??? Can I wind the engine past 6000 rpm without damage ???
Greg Williams

ponyandajag

You need to post your question in the drag racing section. Welcome to the forums.

Norm Peterson

I've seen 6250 rpm mentioned as a maximum engine speed somewhere, which only gets you to the same 139 mph. What I don't know is if that's a fuel cut strategy that calls an immediate halt to the fun or if it is some other limitation.

The available acceleration in the 135-ish mph region in 5th gear is only about 30% of what it is in 4th at the same speed, so you'd want to use 4th for as long as possible.

Keep in mind that at those speeds it takes several hundred feet to tack on just one more mph, so if you're looking for a 140.0+ slip it may be a tougher task than expected. I think that I'd work on aerodynamic tweaks first.


Norm

Kotobuki

Where do they hold that? I'm in Houston, and would have liked to have done that.

Darkness7

139 is haulin! I wouldn't be ashamed of that number as it is... But I would have to agree with tuning your aerodynamics first. I'm sure the S197 is limited on speed just due to its lack of aero in the front. JMO

Darkness7

What gear ratio are you running?

AmericanMuscle4.6GT

get some more power!!

Texotic

That's not bad. Bet the hood moving around so much scared the crap outta you.

Tbirdman951

The Texas Mile is in Goliad about 30 miles south of Victoria. Check www.texasmile.com . I have stock rear gear-I think 3.55. The hood did not shake but I was holding on tight.
Greg Williams

Stkjock

I pull my car to 6500 without issue.

as far as top speed, depends on rear gear and tire as far the top speed your able to pull.