convertibles and horsepower

[purplebat66]

just curious if anybody with a convertible has dyno numbers and what it would run at the track stock.

[justinmc978]

just curious if anybody with a convertible has dyno numbers and what it would run at the track stock.

the same as a hardtop and maybe a tenth slower

[02ragtop t/a]

I had my car on a chassis dyno at some car show out in Ohio right after I bought it. It had 1,600 miles on it , no mods, completely stock and put 312 hp to the rear wheels. Don't remember the torque, have to look in the trunk as I still have the print outs, but it was around 330 fp's, in that area. Will check tomorrow and let you know.

Or, you could come down to Spazapalooza '11 and I could show you the Papers.

[KMdef9]

maybe a tenth slower

Stock vs. stock, I agree.

Once you need to transfer more and more power to the rear, the vert loses some torque due to body twist.

[MrAFX]

my ceta put down 316 hp 347 torque

[Y2KPewterSS]

My A4 2000 vert in stock form put down 310. They are a tad slower than a coupe in stock form.

[waldo]

I had a 02 WS6 vert, stock it ran 13.5, I added a SLP lid, 3600 stall and a exhaust cut-out and got 12.9

never put it on a dyno, hope this helps....it was an A4.

[Firebirdjones]

My 02 SS vert with a stall and headers went 12.76 at 107 mph.

And for the record, It only weighs 60 more lbs. than my 00 SS T-top. Not even enough to make a difference at the track.

[Dave-TransAm]

I've heard that with every extra 100 pounds added, it feels like you have lost about 5 horsepower per 100 pounds. Not too significant but before I run at the track I make sure that nothing I don't need isnt in the car. Haha.

[Firebirdjones]

Ya the rule of thumb is every 100 lbs. is worth one tenth. That's just a generalization or a guideline.
The 60 lbs. difference in our 4th gens (vert/T-top) isn't enough to see the difference, since you are talking hundredths at that point (if you use the "rule of thumb"). That much time can vary easily just in driving style changes or track conditions. That's why I said it's not enough to worry about.