N/A HP BRAG thread

[mults]

Originally Posted by NickTurnon

Hate to be a debbie downer, but even with up rev i think you'll maybe pull 8-10whp out of an Uprev tune with your existing mods not 20. Just dont want your hopes to be shot down. So you'll hang out right under 300. 296-299 but still great for the money you've spent!

In colder temps you may even pull better numbers then that.

NOOOOOOO ! Just kidding...

I'd be happy being close to 300 at the wheels. I was a little skeptical when they told me an extra 20, but I'd take a little more. However, I don't know if the extra HP is worth the $500 they would charge for the UpRev tune.

[Chuck33079]

Originally Posted by mults

NOOOOOOO ! Just kidding...

I'd be happy being close to 300 at the wheels. I was a little skeptical when they told me an extra 20, but I'd take a little more. However, I don't know if the extra HP is worth the $500 they would charge for the UpRev tune.

The tune is absolutely worth it. It's not all about peak power. You gain a lot of power under the curve. If you get a tune and re-dyno in cooler temperatures, you'll be well over 300 whp.

[ANMVQ]

2011 G37X Coupe-UPREV
298WHP -230WHTRQ. Mustang dyno.
Gen3's and Exoticspeed CBE, N/A

Stillen STG2 457WHP 330WTRQ,

[daisuke149]

Originally Posted by Sales@AAMComp

I think I like the 1/4 mile thread better :\ dyno inconsistencies make this thread very misleading

If anything, people should be posting their before and after, the differences between a baseline to mods+tune or whatever you may have, however I know a lot of you guys don't have baselines so that rules that one out

Because all drivers are equal when drag racing and tire setup.. suspension.. have nothing to do with it also. just pure HP.

i can see why you believe that 1/4 times are not misleading at all.

[Chuck33079]

Originally Posted by daisuke149

i can see why you believe that 1/4 times are not misleading at all.

ET is driver dependent, but trap speeds are a pretty good measure of power and they aren't subject to manipulation like dynos.

[daisuke149]

Originally Posted by Chuck33079

ET is driver dependent, but trap speeds are a pretty good measure of power and they aren't subject to manipulation like dynos.

so I can put on 2 spares on the back and run the same trap times as someone with Michelin PSS?

or even if i cut my springs..?

Or when I have a passenger and a 500lb audio setup?

[Chuck33079]

Originally Posted by daisuke149

so I can put on 2 spares on the back and run the same trap times as someone with Michelin PSS?

or even if i cut my springs..?

Or when I have a passenger and a 500lb audio setup?

Speed, not times. And who in their right mind runs the 1/4 with a passenger?

[carlitos_370z]

Originally Posted by Chuck33079

Speed, not times. And who in their right mind runs the 1/4 with a passenger?

I run the 1/4 with a passenger in my STi for fun loool!!!

STi VS Evo X on Vimeo

I miss my STi

[daisuke149]

Originally Posted by Chuck33079

Speed, not times. And who in their right mind runs the 1/4 with a passenger?

i understand speed

traction changes trap speed
weight changes trap speed
gas quality changes trap speed
altitude changes trap speed
temperature changes trap speed
having to correct the wheel slightly changes trap speed
wheel hop changes trap speed
having to turn off my damn wipers in a panic cus of wheel hop changes trap speed
seeing the guy next to you run <10 and you giving up changes trap speed

[Chuck33079]

Originally Posted by daisuke149

i understand speed

traction changes trap speed
weight changes trap speed
gas quality changes trap speed
altitude changes trap speed
temperature changes trap speed
having to correct the wheel slightly changes trap speed
wheel hop changes trap speed
having to turn off my damn wipers in a panic cus of wheel hop changes trap speed
seeing the guy next to you run <10 and you giving up changes trap speed

Some of those do have an effect. Your post before the one I quoted above was a bunch of unlikely and extreme examples, and not really worth much of a response.

You are correct, some of the things you mentioned do have an effect on traps to some degree. Traction/wheelhop is really to only one to be concerned with. Gas quality, temp and altitude would effect dyno numbers to the same degree as trap speeds. Your last two are asinine.

You're correct in pointing out that trap speed is not an absolute, and it can be affected by outside factors. So can dyno numbers. Dynos can be made to show you pretty much whatever number you want. The only way to get an absolutely correct hp reading would be an engine dyno in a controlled environment. Any other method has drawbacks.

Trap speed is very commonly used to calculate HP. The formula for calculating hp from trap speeds is:
hp = (mph / 215.39)3.3135 x weight (lbs)

This page has a pretty good breakdown of the math involved, if you're curious. Shamelessly stolen from a 300GT/Stealth site. Stealth 316 - Formulas for 1/4 mile ET & mph vs. hp & wgt

[synolimit]

280hp 226tq
Dynojet
2.5" true dual CBE
My 2.5" CAI, stock post MAF tubes
Rpf1 18x10.5, 285 HTR Zlll's
No tune
Base run and running a little rich

Next will be long tube headers, post MAF tubes, and still no tune if AFR is still rich. Tune will be later.

[daisuke149]

Originally Posted by Chuck33079

Some of those do have an effect. Your post before the one I quoted above was a bunch of unlikely and extreme examples, and not really worth much of a response.

You are correct, some of the things you mentioned do have an effect on traps to some degree. Traction/wheelhop is really to only one to be concerned with. Gas quality, temp and altitude would effect dyno numbers to the same degree as trap speeds. Your last two are asinine.

You're correct in pointing out that trap speed is not an absolute, and it can be affected by outside factors. So can dyno numbers. Dynos can be made to show you pretty much whatever number you want. The only way to get an absolutely correct hp reading would be an engine dyno in a controlled environment. Any other method has drawbacks.

Trap speed is very commonly used to calculate HP. The formula for calculating hp from trap speeds is:
hp = (mph / 215.39)3.3135 x weight (lbs)

This page has a pretty good breakdown of the math involved, if you're curious. Shamelessly stolen from a 300GT/Stealth site. Stealth 316 - Formulas for 1/4 mile ET & mph vs. hp & wgt

agreed. the point was more that someone said 1/4 times are a better indicator of power than Dyno's.

when its really not.

TBH a place like Z1 is a good place to compare power. They dyno so many Z's all the time and its a Dynojet. Theres no configuring etc. Temps and all that matter, but when you host a dyno day and run 40 cars back to back.. its a good comparison. better than 1/4 times where each setup and driver is different.

[Chuck33079]

I honestly think people here get hung up on the numbers. They look at a peak number and feel good or bad when they need to be looking at the before and after. Get a baseline, mod and tune the car, and go back for an "after" number in as close to the same conditions as possible. You'll never be exact, but you can get close. It's the same thing with traps. You can get close.

[daisuke149]

Originally Posted by Chuck33079

I honestly think people here get hung up on the numbers. They look at a peak number and feel good or bad when they need to be looking at the before and after. Get a baseline, mod and tune the car, and go back for an "after" number in as close to the same conditions as possible. You'll never be exact, but you can get close. It's the same thing with traps. You can get close.

Ive been saying that in alot of dyno threads.

but that being said. Mikes car is seriously fast..
and he drives fast...
and it handles amazing

Riding with him is fun as hell! Except if your 2theextreme

[synolimit]

Originally Posted by Chuck33079

Some of those do have an effect. Your post before the one I quoted above was a bunch of unlikely and extreme examples, and not really worth much of a response.

You are correct, some of the things you mentioned do have an effect on traps to some degree. Traction/wheelhop is really to only one to be concerned with. Gas quality, temp and altitude would effect dyno numbers to the same degree as trap speeds. Your last two are asinine.

You're correct in pointing out that trap speed is not an absolute, and it can be affected by outside factors. So can dyno numbers. Dynos can be made to show you pretty much whatever number you want. The only way to get an absolutely correct hp reading would be an engine dyno in a controlled environment. Any other method has drawbacks.

Trap speed is very commonly used to calculate HP. The formula for calculating hp from trap speeds is:
hp = (mph / 215.39)3.3135 x weight (lbs)

This page has a pretty good breakdown of the math involved, if you're curious. Shamelessly stolen from a 300GT/Stealth site. Stealth 316 - Formulas for 1/4 mile ET & mph vs. hp & wgt

I just did all those for hp...304, 310, and 318 when my dyno read 280. So it can't be to accurate.