Top speeds in 3.8 Fbodies

[StrtRacer98]

Re: Top speeds in 3.8 Fbodies

Yea, ok.

[97rs4life]

Re: Top speeds in 3.8 Fbodies

I just read through this thread because I was curious myself about top speed. I was doing about 110 -120 and I let off when I heard I had another gear left : 0 .. I don't know how fast that thing will do but I can tell you the speedometer isn't going to tell you!!

Yea, ok.

same response I had StrtRacer98. lol.

[LETZRIDE]

Re: Top speeds in 3.8 Fbodies

hmm...I think I calculated (when that program was working) back in the day that with my 3.90 gears, and at 6500 rpm I could theoretically hit 315km/h before I ran out of gear...but you'd need alot of room....probably something like the salt flats...

[StrtRacer98]

Re: Top speeds in 3.8 Fbodies

hmm...I think I calculated (when that program was working) back in the day that with my 3.90 gears, and at 6500 rpm I could theoretically hit 315km/h before I ran out of gear...but you'd need alot of room....probably something like the salt flats...

We don't care about km/h, start using MPH, were from america!

[firebirdn]

Re: Top speeds in 3.8 Fbodies

I had a passenger and they saw it in action..I'm not saying the thing goes 200 or even 150! but it sure as hell goes faster than 120. I had a whole lot of rpm left...and yeah I probably would've needed 20 miles of open road to find out what would have happened. Somebody make a video and put it on youtube!!!!

[firebirdn]

Re: Top speeds in 3.8 Fbodies

Hey...earth to Canada!!!Your on Fire!!!! You guys better get that Sh!^ under control. The smokes choking out New England!

[ssms5411]

Re: Top speeds in 3.8 Fbodies

If it is stock with stock PCM 118 is the limiter, with hptuners depends on the mods on the dyno and some back roads with 3.42's and M5 I have hit 137 MPH with a extra gear to go. Now with 3.73's and a A4 the top speed at 6000 RPMS is 175 MPH.

[T-Mill]

Re: Top speeds in 3.8 Fbodies

Hey...earth to Canada!!!Your on Fire!!!! You guys better get that Sh!^ under control. The smokes choking out New England!

I left Massena, NY on Monday morning and my gf and I thought something was on fire... didn't find out what it was until I was like 5 hours away and heard the story on the radio lol...

[stevethepirate]

Re: Top speeds in 3.8 Fbodies

Who the **** cares? This is an old thread.

[Heywood]

Re: Top speeds in 3.8 Fbodies

I hit 135ish in my car...(search for my posts, I have posted the details don't remember them anymore, might have been 140)

-2k 3.8L
-T-tops off
-cutout open on a factory system
-tune was stock except for the speed limiter removed(YES, I know that is not stock, since the speed limiter was removed, I don't want to get into a 12 page argument about this like I had to last time)


Car I think was hanging around 4k rpms in 5th was restricted by wind resistance


mods on car that really wouldn't affect it much
-z28 sways
-275s on zr1s
-auburn lsd
-I think I had my bilsteins in the car, either that or they were dead factory shocks.

135 with the t-tops off?! Holy crap dude. I notice a difference in acceleration (due to drag) with my tops off when I get up around 80-85.

[Crazed98Camaro]

Re: Top speeds in 3.8 Fbodies

I left Massena, NY on Monday morning and my gf and I thought something was on fire... didn't find out what it was until I was like 5 hours away and heard the story on the radio lol...

You ever in Massena come August til April? I go to college at Clarkson, in Potsdam.

[Niko97RS]

Re: Top speeds in 3.8 Fbodies

welp, until you find something to back that up, your belief will stay just that. But, then again, that's not really the subject of this thread...now is it?

i did 147 indicated on my z28 which was an A4 with 2.73s....i had enough gear for MAYBE another 25 mph if i was drafting a semi lol

but to go over 60mph faster than i did...id need different gears and more power.

[Bonemaro]

Re: Top speeds in 3.8 Fbodies

Calling FreakV6... didn't you hit like 148-150? Cammed?

[Fondle]

Re: Top speeds in 3.8 Fbodies

i have been 145 in mine

[EarlR]

Re: Top speeds in 3.8 Fbodies

Not saying that I've ever gone that fast, but I have it from an extremely reliable source that a 3.8 w/manual, intake/exhaust/tune will easily run to red-line (6k) in 4th, and can get up to around 4.5k in 5th if you have a couple of miles of open road. With 3.23 gears & 245/45/16 tires that works out to about 136 in 4th and 142-144 in 5th. My source also mentioned that while the car pulls pretty well in 4th all the way to red-line, it strains to pick up that extra 6-8 mph in 5th. He also mentioned that with a good suspension set up the car is very stable at those speeds...

...boy I wish I could go that fast :D