what rpm are you at at 85mph

[twoolley08]

hey just wondering what rpm you guys are runnin at at 85mph...im runnin at 3g's....just wondering if thats average or high, also what do u idle at? im at 900

[Mr. Luos]

M6 or A4?
Tire size?
Gears?

[96Firebirdformula]

hey just wondering what rpm you guys are runnin at at 85mph...im runnin at 3g's....just wondering if thats average or high, also what do u idle at? im at 900

With 3.73s at 85 mph with A4 its almost 3k rpm.

http://www.f-body.org/gears/

[the_formula]

With 3.73s at 85 mph with A4 its almost 3k rpm.

http://www.f-body.org/gears/

why is there no option for 99-02 f bodies on that calculator.??

[Mr. Luos]

why is there no option for 99-02 f bodies on that calculator.??

Use the 98's factors. They are the same.

[BIG GUNS]

Use the 98's factors. They are the same.

Wish I was able to answer those type questions......lol. Oh well, if I keep reading, I'll learn. I'm still a way noob when it comes to F-bodies but, I'm willing to learn.

[twoolley08]

its a4 gears i called the dealer they said 3.23 not sure tho if its been changed or not tires are 295/35z/18 how about your idle speeds??? what are you guys at?

[ldanny]

like bout 2k, m6, 315/40/17

[Fearls1]

About 1900 I think... with 3.73 275/40/18's. And M6 of course.

[twoolley08]

so what rpm you guys idling at???

[Fearls1]

I idle at 750 solid as a rock

[blkSS98]

I'm at like 2500 at 85 in 5th. I don't know my gears, one of the optional factory ratio's.

m6
275/40/17

[kris6273]

a4 with 3.73's 245/50/16 at a little over 3k

[astyles]

a4 stock 273's and 245/50/16 2k ish

[danmeksch]

What mods did you have to do to fit your 315/40/17 under the back? What size are you wearing in the front? I have 275/40/17 all the way around, want to go bigger in back but tires cost too much if they dont fit. So its nice to know that some on has done it!

[Mr. Luos]

315's don't fit safely on the stock wheels.

[astyles]

--------------------------------------------------------------------------------

After lowering, I decided to get my chrome SS 10-spokes widened to 11" in the rear. I sent them off to Weldcraft Wheels in Michigan for about 3 weeks and then got them back. They came out nice too. The welds were really good. I wrapped them in some new Goodyear Eagle F1 GSD3's 315/35/17. Let me tell you, these are some WIDE tires. Much wider than the Nitto 315's. I had to pound the fenders just a little bit, also had to get 1 1/4" billet adapters to make them fit (since the 2" was added to the inside of the wheel). I borrowed a fender rolling tool (Eastwood Co.), and it was really easy, no paint damage when rolling.

It was 200/wheel for chrome (175 if not chrome) + shipping. ~60-90 for 1 1/4" wheel adapters with studs. And the cost of the tires. Definately needed an adjustable panhard bar too.

Well worth the cost IMO, there are only a handful of us out there with widened 10spokes. After I saw Avengeance's widened wheels (had been thinking about it..) I knew Weldcraft was the right place to go.





i got this on another site

[twoolley08]

my ta is idling at 1000 in park 900 in gear...maybe tuned?

[Mr. Luos]

After I saw Avengeance's widened wheels

Do you know Nick personally?

[danmeksch]

315's don't fit safely on the stock wheels.

back to the 315's I have the c5 corvette wheels on my car not stock 10" wide will I need to do anything to fit the 315's