How friendly was the dyno????
Thread Starter
Racer
Joined: Mar 2009
Posts: 250
Likes: 1
From: Huntsville Al
How friendly was the dyno????
I know this number is high, but I was just wondering how high.
My car is a '00 coupe, M6 with only vararam and a tune.
On a dynocom dyno it just put down 349.5/385.4.
I would have been big time happy with 330ish, but I think the numbers I got are high.
The only thing that may have helped was that there was a fan sitting directly in front of each intake duct as opposed to one large fan in front.
EDIT***** here is the video, you can here the guy talking about putting down 360 with headers during the last pull LOL..
http://gallery.me.com/academytim#101165
My car is a '00 coupe, M6 with only vararam and a tune.
On a dynocom dyno it just put down 349.5/385.4.
I would have been big time happy with 330ish, but I think the numbers I got are high.
The only thing that may have helped was that there was a fan sitting directly in front of each intake duct as opposed to one large fan in front.
EDIT***** here is the video, you can here the guy talking about putting down 360 with headers during the last pull LOL..
http://gallery.me.com/academytim#101165
Last edited by dblack; Aug 31, 2009 at 08:15 AM.
Melting Slicks
Joined: Dec 2004
Posts: 2,847
Likes: 1,144
From: Sleepy Hollow- NJ
Really friendly! The vararam won't pick up anything on a dyno, fans or no fans. The fans in front of the car are common when getting a tune. I'm thinking the tuner was being dishonest with your numbers so you come back after you make more mods. 
I'm thinking your about 20rwhp and 30rwtq high on your numbers.
Bring her somewhere else and get an honest tune from a reputable tuner.
I'm thinking your about 20rwhp and 30rwtq high on your numbers.
Bring her somewhere else and get an honest tune from a reputable tuner.
Thread Starter
Racer
Joined: Mar 2009
Posts: 250
Likes: 1
From: Huntsville Al
The car was not tuned there. It was actually tuned before I got the car. We just hooked it up to HP tuners and logged it and saw that timing was higher than normal and what not.
I installed the vararam myself about three weeks ago. This was just a dyno day.
I know it is common place to put a fan in front, I was just looking for something to explain something as there were 3 total fans on the car and 2 directly at the opening of the ducts.
I installed the vararam myself about three weeks ago. This was just a dyno day.
I know it is common place to put a fan in front, I was just looking for something to explain something as there were 3 total fans on the car and 2 directly at the opening of the ducts.
Burning Brakes
Joined: May 2008
Posts: 1,147
Likes: 1
From: Mohegan Lake New York
Here's an idea go to the dragstrip make a few passes, weigh the car w/driver note the MPH If you're trapping teens 115 --118 you might be making some respectable hp.Morose sells a power speed caculator(basically a glorified slide rule) it has numerous math computations that are of interest to any serious gear head(less than $20) including rear wheel HP and they are reasonably accurate.
Le Mans Master
Joined: Feb 2007
Posts: 9,289
Likes: 1,520
From: Oviedo Florida
2024 C5 of the Year Finalist - Modified
2024 C2 of the Year Finalist - Modified
2023 C2 of the Year Finalist - Modified
2021 C2 of the Year Finalist - Modified
2016 C5 of Year Finalist
When my car was stock: 2000 coupe vette ,auto.
I made 284 rwhp. I don't believe those numbers are
even in the ball park. Just my opinion.
I made 284 rwhp. I don't believe those numbers are
even in the ball park. Just my opinion.
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Drifting
Joined: Jun 2007
Posts: 1,437
Likes: 5
Thread Starter
Racer
Joined: Mar 2009
Posts: 250
Likes: 1
From: Huntsville Al
I have had it since February. The only mods to the car are the vararam, and a descreened MAF that I did a few weeks ago.
I ASSume it was modded previously since we found it had a tune in it, but everything is back to stock now.
I have not been to the track yet, but have some Speed by proxy races under my belt LOL.
I have put about a car on an auto C6 from a 60 kick. And about a car and a half on a friend of mines AFR headed Fox mustang that runs 8.20's @ 89-90 ( 1/8th mile ) from 20.
I know these don't really mean anything when it comes to what mine will run, but it at leas t gives me a smile on my face!!!
I ASSume it was modded previously since we found it had a tune in it, but everything is back to stock now.
I have not been to the track yet, but have some Speed by proxy races under my belt LOL.
I have put about a car on an auto C6 from a 60 kick. And about a car and a half on a friend of mines AFR headed Fox mustang that runs 8.20's @ 89-90 ( 1/8th mile ) from 20.
I know these don't really mean anything when it comes to what mine will run, but it at leas t gives me a smile on my face!!!
Safety Car
Joined: Apr 2007
Posts: 3,582
Likes: 136
From: SoCal CA
A stock 2000 Vettes were rated at 345hp. A M6 will have a 12-13% hp loss through the powertrain making it about 300-303rwhp+/-. An auto would have 16-18% loss making it about 283-290rwhp+/- (unless you have a performance torque converter, then its closer to a manual on lockup). This meant you picked up 50rwhp form a tune... unlikely for a stock car. On a dyno its easy to mess around with the weight of the vehicle to get higher or lower dyno numbers. On a dyno day they usually dont change all the info and just dyno car after car so no one really would have a very accurate reading. Go to another shop, pay for a real dyno with all the info entered correctly, and compare.
Race Director
Joined: Apr 2007
Posts: 11,150
Likes: 890
From: South Western Ontario
The dyno was very friendly. Somebody was giving away bragging rights. The previous owner had dyno'd my stock M6 with a Vararam at about 300hp. Even 330hp would have been very optimistic.
If you want a performance number that matters then get a time slip from drag strip or any other real world performance benchmark number for that matter (such as 0-100-0). The wheel dyno is for use during a tuning session to compare modifications.
Peter
If you want a performance number that matters then get a time slip from drag strip or any other real world performance benchmark number for that matter (such as 0-100-0). The wheel dyno is for use during a tuning session to compare modifications.
Peter
Intermediate
Joined: Aug 2009
Posts: 49
Likes: 0
From: Tampa FL
St. Jude Donor '15
I just dynoed on the same type of dyno. I made 344hp and 382tq. I have a cold air, MAF, LS6 intake, long tubes, no cats, and a full exhaust, 4:10s, and a tune. Car isa 99 FRC M6
Thread Starter
Racer
Joined: Mar 2009
Posts: 250
Likes: 1
From: Huntsville Al
There was a guy there that told me he put down 360 with a 99 FRC on the same dyno with headers and ls6 intake. That same guy now has a small cam and Patriot 5.3 heads and made 415 at the same dyno day. He said that was within 5 from what he had put down recently on another dyno.
I am not really worried about dyno numbers and don't think they matter except for tuning. I was just curious to see how out of the ball park those number were.
I had just followed one of my friends down to watch him dyno his AFR headed FRC and the place had an open slot so I stuck it on there to see what was up. I am glad I did and didnt waste money on a tune later on, everything looked well with it.
If it doesn't rain this wednesday I will swing buy our local 1/8th mile T&T on my way home from work and get some numbers.
I am not really worried about dyno numbers and don't think they matter except for tuning. I was just curious to see how out of the ball park those number were.
I had just followed one of my friends down to watch him dyno his AFR headed FRC and the place had an open slot so I stuck it on there to see what was up. I am glad I did and didnt waste money on a tune later on, everything looked well with it.
If it doesn't rain this wednesday I will swing buy our local 1/8th mile T&T on my way home from work and get some numbers.
Last edited by dblack; Aug 31, 2009 at 08:00 AM.
