pieperz06
i need to get blown
lol yah i know it is
i ran my car up to about 160 and back down it wasn't to bad but i think it will be better on an air strip
btw how do u know you got to 174
4.10 gears top speed
- Thread starter pieperz06
- Start date
lol yah i know it is
i ran my car up to about 160 and back down it wasn't to bad but i think it will be better on an air strip
btw how do u know you got to 174
alloy6ix
Wiener Dog Racer
pieperz06
i need to get blown
Doing multiplication during the last 1.5 miles.
that doesn't work because rpm is only linear in a vacuum
The first time I did it I guessed. With that setup, in 5th gear my car went 30 mph for every 1000 rpm. I got to just below 6k. The second time I data logged it. Just cuz the speed-o stops, the computer doesn't stop keeping track.
It's been a while, but I'll see if I can find the log and do a screen shot.
It's been a while, but I'll see if I can find the log and do a screen shot.
alloy6ix
Wiener Dog Racer
True, but post 42 was also relative to a joke.. lol.
Data logging would be the only thing I could thing of. At a closed off back road we own, I ended at 141 with a very shaky hood. Never again without hood pins..
05stroker
Never enough power guy!
Call Saleen and get one of these . If you ever top this out , I want to hear about it !
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pieperz06
i need to get blown
how much are they
1fastpony
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One January while being stoooooopid, a nemisous SS Camaro and I were getting up on the Interstate ramp. He would usually bust my ass from 70 on. He had a set of heads, cam, gears,LT and etc. I had just installed the UL Steeda Springs, D-SPEC'S, Alum DS and LT O/R H. I couldn't couldn't prevent myself from getting a little pay back. Hell I was old enuff to be his old man but I did'nt care.
We hit the ramp and had to wait for the the traffic to clear abit. It was really cold that day...30 ish. Once on the interstate I saw the puff of smoke from his exhaust so I nailed it. The next thing I know I bounced of the rev limiter hard, the car fell on its face (130mph) but made a good shift to 5th. The car didn't let up. I was on his ass all the way but very slightly gaining on his tail and had to pull out of the draft and that is were I was glad the suspension mods payed off. I made a peek at the Tach and it was sitting between 5500-5600. Later checking my rpm calculator which converteded to 159 mph. Of course the MPH gage doesn't read off. The car was planted to the ground and still slowly moving up the tach. With 4:10 N/A it gets to 140 mph pretty fast but still accelerates in 5th. With 3:55 this would not even happen, it's only an overdrive gear with 3"55's.
The suspension mods made the car very reactive like a go cart so you reallllly need to be aware. It will actually slap your head off of the door window if you cut to hard.
BTW tires are 27" Nittos 555 Extremes.
We hit the ramp and had to wait for the the traffic to clear abit. It was really cold that day...30 ish. Once on the interstate I saw the puff of smoke from his exhaust so I nailed it. The next thing I know I bounced of the rev limiter hard, the car fell on its face (130mph) but made a good shift to 5th. The car didn't let up. I was on his ass all the way but very slightly gaining on his tail and had to pull out of the draft and that is were I was glad the suspension mods payed off. I made a peek at the Tach and it was sitting between 5500-5600. Later checking my rpm calculator which converteded to 159 mph. Of course the MPH gage doesn't read off. The car was planted to the ground and still slowly moving up the tach. With 4:10 N/A it gets to 140 mph pretty fast but still accelerates in 5th. With 3:55 this would not even happen, it's only an overdrive gear with 3"55's.
The suspension mods made the car very reactive like a go cart so you reallllly need to be aware. It will actually slap your head off of the door window if you cut to hard.
BTW tires are 27" Nittos 555 Extremes.
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Error404
photographer
that's sweet! is it a direct pop-in unit? what all is involved?
470 GT/CS
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crock...u have 4.10s...don't you ever wind it up to 6k rpm in 4th?
I go to 6k rpm in 4th every day with 4.10s and basically stock tire size (GT500 wheels/tires). 6k rpm in 4th is ~119 mph
that's about the first bit of truth I've read yet on this thread! I've given this subject a lot of thought in the past. The theoretical top speed in 5th with 4.10s is at the HP peak, which is ~5500 with a stock cam. 5th gear at 5500 rpm is 158 mph with my tires, 159 mph with stock sized tires. Whether you get there or not will depend on whether you have enough HP to overcome the effect of aero drag, which increases exponentially with speed.
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That sounds right, but you also need to have enough HP to overcome the drag and weight. If you don't have 300+ at the wheels, it's not gonna happen regardless of the tires or gears. Shoot, with the 332 I had and peaking at 6200 rpm, I barely squeaked 16 mph more than that, and I never hit my graphed peak HP. I came about 300 RPM short.
I forgot if I got this from Don W or 2k05gt, but it is pretty cool and the numbers are pretty close to what I measured...
http://fiveguysracing.com/marc/RPM_vs_Speed.xls
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1fastpony
forum member
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That xls spreadsheet is what I got from Don over three years ago and have used it religiously to insure I didn't over tire my power outpput. On a Mustang dyno the car put down 334rhp & 352 rtq, Dyno jet # were slightly lower with HTO'S. Thats'a bout as good as it gets untill cam's/heads/ & ground effect goodies. F/I is a whole different game.
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