why do we worry so much about dyno numbers
04-26-2005, 10:36 AM
#1
why do we worry so much about dyno numbers lets face it. Dyno's are for tuning and give you an idea on how you car is running. the power band shift point etc. i see so many post on why is my dyno so low. and really high dyno with no good track results. case in point. i dynoed 403 at one place and 407 at another. with a nice power curve. i ran a 530 hp 422 and we were dead even. the guy can drive. about the same weight cars and type of car. transam. i seen a 370 hp car trap 121 weighting 100lbs lighter. i personally trap 123. with the race weight (with me in it) of 3600lbs. now you are going to say it's the different dyno's? nope. we all dynoed at the same place. so now what? just want to let people know to stop worrying about their dyno numbers and get it to the track and worry about the E.T./MPH numbers. when those are way off then you can approach the issue.
04-26-2005, 11:20 AM
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I think most of us know what the dyno is used for. But, alot of people use it to much to base their combo off what other people are getting and and get dissappointed when they don't have similar results, plus they never even take there car to the track. There must be something up with that 422, most I see run 128+ MPH..
04-26-2005, 11:21 AM
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Originally Posted by jrp
dynoracing has become one of the newer fads, didnt you know that 
. there are some people who just dont give two ***** if there car puts down 200rwhp and runs 10's while others would rather have 500rwhp and run 12's. its there perogative.
. there are some people who just dont give two ***** if there car puts down 200rwhp and runs 10's while others would rather have 500rwhp and run 12's. its there perogative.
04-26-2005, 11:42 AM
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Well some people just like to have the power and not take it to the track and possibly brake whatever they have done. Not my style, but to each his own, right?
04-26-2005, 11:55 AM
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Hi Folks
First Dyno is good for a figure of merit for horsepower, torque, and AFR. It give somebody an idea what their car is capability of doing. When I try to find out what my AFR is on the street, you have get the car in fourth gear and by that time you are hauling *** - which is very dangerous to say the least - dyno works. The track could be the final test but there are many variables like traction, shifting, etc and not everybody good at these items. Just my two cents.
Bill
First Dyno is good for a figure of merit for horsepower, torque, and AFR. It give somebody an idea what their car is capability of doing. When I try to find out what my AFR is on the street, you have get the car in fourth gear and by that time you are hauling *** - which is very dangerous to say the least - dyno works. The track could be the final test but there are many variables like traction, shifting, etc and not everybody good at these items. Just my two cents.
Bill
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04-26-2005, 11:58 AM
#8
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I think nowdays its easier to take your car to a dyno than it is to find a track thats convenient. Honestly (in my opinion) for a street car, its a pain to go to the track and spend 2 hours in tech, another 2 hours waiting in line, get one run in, and go home because some top fueler blew up half way down the track. Thats not counting how long it took you to drive to the track. That has been my experience, (poorly run track) but it seems that in some areas dyno time is more rewarding than track time.
04-26-2005, 12:03 PM
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Originally Posted by BLUEBALLS ZZ
lets face it. Dyno's are for tuning and give you an idea on how you car is running. the power band shift point etc. i see so many post on why is my dyno so low. and really high dyno with no good track results. case in point. i dynoed 403 at one place and 407 at another. with a nice power curve. i ran a 530 hp 422 and we were dead even. the guy can drive. about the same weight cars and type of car. transam. i seen a 370 hp car trap 121 weighting 100lbs lighter. i personally trap 123. with the race weight (with me in it) of 3600lbs. now you are going to say it's the different dyno's? nope. we all dynoed at the same place. so now what? just want to let people know to stop worrying about their dyno numbers and get it to the track and worry about the E.T./MPH numbers. when those are way off then you can approach the issue.
04-26-2005, 12:15 PM
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Hey Dave,
Have you dynoed since the addition of the fast intake? I doubt that you have 404 or 407 at any dyno now. I don't really understand how you could keep pace with a 422 though.
Have you dynoed since the addition of the fast intake? I doubt that you have 404 or 407 at any dyno now. I don't really understand how you could keep pace with a 422 though.
04-26-2005, 12:46 PM
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Originally Posted by P Mack
The answer to this question is so obvious. You can compare engine combos independently of weight, suspension, traction, track setup, etc.
04-26-2005, 12:48 PM
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Originally Posted by silverado
I think nowdays its easier to take your car to a dyno than it is to find a track thats convenient. Honestly (in my opinion) for a street car, its a pain to go to the track and spend 2 hours in tech, another 2 hours waiting in line, get one run in, and go home because some top fueler blew up half way down the track. Thats not counting how long it took you to drive to the track. That has been my experience, (poorly run track) but it seems that in some areas dyno time is more rewarding than track time.
04-26-2005, 12:55 PM
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I personally like to know what my car is putting down. It's kinda cool if someone asks how much hp it has to say oh 430 to the wheels 
. I also am all about going to the track and having fun there too and running some good e.t's. I have a goal with the car and know what I have to do to get there. This is just me. I like both knowing how the car is running and what she puts down and also woopin some *** at the track.
. I also am all about going to the track and having fun there too and running some good e.t's. I have a goal with the car and know what I have to do to get there. This is just me. I like both knowing how the car is running and what she puts down and also woopin some *** at the track. 
04-26-2005, 01:04 PM
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Originally Posted by 00RedWs6
I personally like to know what my car is putting down. It's kinda cool if someone asks how much hp it has to say oh 430 to the wheels . I also am all about going to the track and having fun there too and running some good e.t's. I have a goal with the car and know what I have to do to get there. This is just me. I like both knowing how the car is running and what she puts down and also woopin some *** at the track.
. I also am all about going to the track and having fun there too and running some good e.t's. I have a goal with the car and know what I have to do to get there. This is just me. I like both knowing how the car is running and what she puts down and also woopin some *** at the track.unless your set up for the track. Last week
I saw a new 400hp gto run 13.6 and a late
model vette run 13.7. I believe how you are
set up is more important than horsepower.
04-26-2005, 01:59 PM
#17
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Real world example for you guys from this past weekend at the track...
THe cars: mine (see sig)
boss man's (1995 Saleen S351, heavily modded 575 rwhp)
The et's/traps: Mine (see sig)
boss man's 8.8 @ 92 mph.
Both on street tires.
Moral of the story.....just cause the dyno says X don't mean the car will do Y. Im with you guys, use the dyno to tune and get a good idea of what the car is doing, take it to the track to see if it acutally works.
THe cars: mine (see sig)
boss man's (1995 Saleen S351, heavily modded 575 rwhp)
The et's/traps: Mine (see sig)
boss man's 8.8 @ 92 mph.
Both on street tires.
Moral of the story.....just cause the dyno says X don't mean the car will do Y. Im with you guys, use the dyno to tune and get a good idea of what the car is doing, take it to the track to see if it acutally works.
04-26-2005, 02:00 PM
#18
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Originally Posted by john shea
I agree I think dyno numbers are meaningless
unless your set up for the track. Last week
I saw a new 400hp gto run 13.6 and a late
model vette run 13.7. I believe how you are
set up is more important than horsepower.
unless your set up for the track. Last week
I saw a new 400hp gto run 13.6 and a late
model vette run 13.7. I believe how you are
set up is more important than horsepower.
04-26-2005, 02:14 PM
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Well if you want to comapre RWHP Hp/Et heres one for you.
Engine HP 158.3
75 RWHP
best et 10.52 at 122.5 1.45 60ft 6.51 @ 101 1/8 mile
I thought this would be fun to post. Later John
Engine HP 158.3
75 RWHP
best et 10.52 at 122.5 1.45 60ft 6.51 @ 101 1/8 mile
I thought this would be fun to post. Later John
04-26-2005, 02:25 PM
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Originally Posted by SS346Ls1
My car dyno'ed 376, and then went 11.6@117 at the track. @ 3500 raceweight.....
Even more proof that I don't believe what I see on a dyno.
Even more proof that I don't believe what I see on a dyno.