post dyno days or locations or just general info in here






first up: (1/14) 8am-2pm @ BnT in Wilmington, 3 pulls $60 pm me if you want more info

1/8/2006 12:18:36 AM

http://www.charm.net/~mchaney/homedyno/dynokit.htm

1/8/2006 12:19:58 AM

hopefully you'll see mine tomorrow.

1/8/2006 1:56:07 AM

or you could just go to Carolina Auto Masters in Durham and get 3 pulls for $60 like any day you want (at least, that's what I've managed to get)

1/8/2006 2:10:50 AM

oh ill probably do that in the olds, but some local grand prix club guys needed more people to come so i told them i would come down in the bonneville

im not in any club, but at least i will get to see a few other modified SC series II engines

[Edited on January 8, 2006 at 2:42 AM. Reason : .]

1/8/2006 2:41:45 AM

'03 VW GTI 20th, 1.8T, 3" full turboback, APR 93 flash, 60's F weather...very nice day

kind of disappointed with torque, but i guess thats what you get with 3" exhaust. oh well...this is as far as performance mods go. im done with it.

1/8/2006 7:23:29 PM

hey where did you do that at, or was it a DIY kit like someone posted above?

[Edited on January 8, 2006 at 7:45 PM. Reason : ...]

1/8/2006 7:45:00 PM

absolute automotive in durham

1/8/2006 7:59:37 PM

I'll try to find mine...but put down 330rwhp

[Edited on January 8, 2006 at 8:37 PM. Reason : catback, CAI and dyno tune]

1/8/2006 8:28:39 PM

^dyno tune meaning a hptuners reflash of your PCM?

Some people say that a dyno sheet without the correction type and correction factor is worthless. Anyone else ever heard that?

BigDane has seen some dyno time before with a few cars I think, 2L8IWON had his TA on the dyno at least once, and arghxxx posted his sheet a while back, anyone care to speak on correction factors?

1/8/2006 8:44:37 PM

It's not that big of a deal, it will make minor differences.

1/8/2006 8:54:21 PM

Well (the way I understand it) if its a 1.17 correction factor, then you get 17% added to the measured readings, which is pretty shitty. It dosent seem right to me to pay someone for incorrect measurements.

1/8/2006 8:59:47 PM

As far as correction goes, I always thought there was just some standard formula that every dynojet used or whatever? I mean don't they just have some algorithm that computes the correction based on humidity and temperature and shit?

Isn't there some standard way to compute SAE numbers? When I went to Eurospeed to get my shit dynoed a year ago, I think I put down 157 uncorrected and 160 corrected. But um, that's Eurospeed...
At CAM Jeff always puts it in SAE corrected, or at least I think that's what he told me.

[Edited on January 8, 2006 at 9:16 PM. Reason : .]

1/8/2006 9:13:43 PM

^^^^ yeah basically...not just reflashed with a generic tune or anything though, had everything adjust according to what the wideband was saying. i didnt do the tuning myself obviously...I'll post a sheet after i get the heads/headers/cam in. I bought a suburban over break so I'd have something else to drive for a little while so I can finally get around to doing that to the vette.



[Edited on January 8, 2006 at 9:20 PM. Reason : that bitch is a TTANK lol]

1/8/2006 9:19:38 PM

Quote :

"Well (the way I understand it) if its a 1.17 correction factor, then you get 17% added to the measured readings, which is pretty shitty. It dosent seem right to me to pay someone for incorrect measurements. "

you are confused. Correction factor has nothing to do with WHP and the actual dyno. Crank numbers dont mean shit, whp is what matters.

[Edited on January 8, 2006 at 9:29 PM. Reason : cuz i can]

1/8/2006 9:28:35 PM

chris im not talking about correcting for driveline losses, but the correction factor that the dyno uses- possibly based in ambient barometric pressure at time of the run?

1/8/2006 9:56:09 PM

the only logical 'correct factor' i could see any dyno using would be to make up for any mechanical differences/wear of the dyno itself and perhaps temperature (and thus viscocity) of any fluids used (i'm not sure how they work, but i read that somewhere) in the dyno

[Edited on January 8, 2006 at 10:23 PM. Reason : but i dont know shit, so i'll shutup]

1/8/2006 10:22:42 PM

1in10^9, i would suggest you try another dyno sometime, that one doesn't look too terribly accurate

1/8/2006 11:09:55 PM

I always thought the main point of SAE correction was to account for differences in ambient temperature and humiditiy

1/9/2006 12:14:03 AM

Quote :

"1in10^9, i would suggest you try another dyno sometime, that one doesn't look too terribly accurate"

it reads a *little* lower than a dynojet, typically, but the numbers are usually about the same.

i was kind of surprised they were that low, but we did see the shop owner put down some stout numbers with his S4 on 109 octane

1/9/2006 2:29:55 AM

yeah tq something is up with that....im thinking he should have ran the car in the 4th gear, not 3rd because it is closer to 1 ratio.

yeah, the S4 was crazy, 350 awhp, 350 awtq

1/9/2006 12:21:54 PM

Quote :

"'03 VW GTI 20th, 1.8T, 3" full turboback, APR 93 flash, 60's F weather...very nice day kind of disappointed with torque, but i guess thats what you get with 3" exhaust. oh well...this is as far as performance mods go. im done with it."

i'm pretty sure that on a turbo car.... you don't lose tq going to a bigger exhaust... if anything it should only make it spool faster.

a turbo is all the exhaust restriction you need to build torque unless the thing is gifrantic and you have to spin the motor uberfast to spool it. and even then a 3" pipe wouldn't hurt much i don't think

1/9/2006 12:26:28 PM

thats true, but possibly because the powerband shifted up in the rev range it may have an effect on torque. i mean it is UP since chip and exhaust, but not where others are at with similar mods (230-260 wtq ft.lb). let alone the fact, car sounds like a god damn honda now


[Edited on January 9, 2006 at 12:31 PM. Reason : f]

1/9/2006 12:30:28 PM

Your car will never sound like a "honda."

1/9/2006 12:41:20 PM

you have low torque because you never spin your tires

1/9/2006 12:44:29 PM

laugh it out punk

1/9/2006 12:50:38 PM

1in10^9, there is no way that dyno run is correct.

First there has never been a stock turbo'd MKIV with software that ever put out higher Hp than torque numbers. They shouldn't even be close. And the peak HP point is a definate indication that the run was messed up somehow. Peak Hp should be below 4500k, and no stock turbo car will continue to make more hp past 4500.

1/9/2006 1:20:07 PM

Quote :

"I always thought the main point of SAE correction was to account for differences in ambient temperature and humiditiy"

and you are absolutely correct here. That's all.

1/9/2006 1:27:25 PM

1in10^9, do you have a boost gauge?

the torque should climb steeper once the turbo spools. i doubt it is the dyno (since several others ran the same day), but i agree that those numbers do not appear correct.

maybe get your hands on a vag com and do some data logging, specifically boost/manifold pressure and timing advance/retard.

1/9/2006 2:22:01 PM

thats what a dyno is supposed to look like. none of the bumpy jumpy turbo crap

1/9/2006 2:39:09 PM

^for $30k, id want more than 220awhp.

grizzly,

i thought hp should be the highest around 5500 rpm on 1.8T Mk4 give or take. since the exhaust wouldnt it make sense to climb higher? i also think something is up, maybe the car should have been tested in 4th.

beethead,

i dont have boost gauge, but the chip (or should i say flash) never gave me surging. it was smooth since the beginning, even after exahust.



[Edited on January 9, 2006 at 2:46 PM. Reason : sdf]

1/9/2006 2:45:04 PM

I personally use Bnt's dyno here in wilmington and have been on waynes in jacksonville. Im not real familiar with the sae numbers. I believe usually if you run your car in the same conditions you dynod in, the trap should reflect the uncorected dyno numbers.

[Edited on January 9, 2006 at 2:50 PM. Reason : .]

1/9/2006 2:49:40 PM

who pays sticker? and if you play your cards right (like i did) you can sell the car for exactly as much as you paid for it 15 months and 21kmi later. dont bring up money as a con to this car

but yeh id expect that turbo to boost and die off sooner. maybe theres crap pluggin up your exhaust pipe so its taking awhile to spool?

1/9/2006 2:50:49 PM

R32 is a pig.








[Edited on January 9, 2006 at 2:57 PM. Reason : mine]

1/9/2006 2:53:36 PM

^^thats because some people are way too retarded to pay 28k for a used R32, but then again thats not really my business. more power to you, sucks for them.

[Edited on January 9, 2006 at 2:55 PM. Reason : adf]

1/9/2006 2:54:48 PM

The Maxima w/ full intake, exaust, and adjusted timing
HP: 127
TQ: 155

The GTI w/ nothing
HP: 153
TQ: 163

1/9/2006 3:30:51 PM

[Edited on January 9, 2006 at 3:43 PM. Reason : ]

1/9/2006 3:42:15 PM

if my lawn mower says its got 12 hp on the motor

what's the rwhp?

1/9/2006 4:11:00 PM

8.3whp, 9.8wtq

1/9/2006 4:16:44 PM

Quote :

"if my lawn mower says its got 12 hp on the motor what's the rwhp? "

~15% drive train loss for rear wheel vehicles

12hp x 0.15 = 1.8hp, therefore...

... 12hp - 1.8hp = 10.2rwhp

1/9/2006 4:35:11 PM

We all know lawn mowers have 31% drivetrain loss












[Edited on January 9, 2006 at 4:41 PM. Reason : ]

1/9/2006 4:40:52 PM

idiots, BHP, BLADE HP

1/9/2006 6:53:55 PM

Quote :

"~15% drive train loss for rear wheel vehicles "

i dont think so, mate

1/9/2006 8:57:15 PM

Quote :

"it reads a *little* lower than a dynojet, typically, but the numbers are usually about the same. i was kind of surprised they were that low, but we did see the shop owner put down some stout numbers with his S4 on 109 octane"

either the car or the dyno is broken. i also don't really understand why the hell you ran it in 3rd to begin with.

[Edited on January 9, 2006 at 9:16 PM. Reason : *]

1/9/2006 9:09:48 PM

you motherfuckers

i knew i should have limited the thread to dyno info and told you assholes to keep the sheets and tuning diccussion elsewhere

1/9/2006 9:32:37 PM

http://forums.corvetteforum.com/showthread.php?t=1240187&forum_id=1

1/9/2006 11:20:41 PM

Quote :

"either the car or the dyno is broken"

again, i doubt its the dyno b/c an un-chipped 1.8t (i think he had a tb exhaust, thats it) put down like 185/185. also, rob put down pretty good numbers which were definitely not low.

[Edited on January 10, 2006 at 2:43 AM. Reason : i-]

1/10/2006 2:43:07 AM

was he in 3rd gear too?

1/10/2006 6:55:58 AM

it doesnt really matter that much.. the numbers dont change that much 3rd/4th. maybe a few hp and a few ft-lb

1/10/2006 10:42:52 AM

really shouldn't matter at all i wouldn't think

1/10/2006 11:42:56 AM