List your Dyno Numbers
Burning Brakes
Joined: Feb 2004
Posts: 1,069
Likes: 8
From: Sanford NC
When you give me 15 grand for all the free advice, time, and labor.
I do have to say that driving that truck, as nice as it is, is driving me nuckin futs. I miss my car so bad. So be glad all of you with issues that you even still have cars to get mad at. You are two steps ahead of me. All I can do is troll the boards and talk about the good old days.
I do have to say that driving that truck, as nice as it is, is driving me nuckin futs. I miss my car so bad. So be glad all of you with issues that you even still have cars to get mad at. You are two steps ahead of me. All I can do is troll the boards and talk about the good old days.
Racer
Joined: Jan 2007
Posts: 415
Likes: 0
From: Oklahoma
I truly think Robs car could go 9.5's at 145 with my "OLD" motor in it. I think him and I are about even drivers. And as we all know with M6/12 cars, it is all about the driver. But Robs car is so great because every thing is sorted out and optomized for the 1/4. Remember that I never got to make a pass with my last dyno numbers. So my 10.21@136 would easily fall with better weather and the extra 25/25rw the car now has. It should have been a 9 sec pass if it didn't spin on every stinking shift and dive for the center line on the 3/4.
Here are some of the factors playing into the whole equation as to why Robs car is "faster and quicker" than my old car. Rob has worked heads, missing pass seat, soft lock clutch, 2-step, 4.11 gears, custom trans with m6 gearing, suspension mods, bogarts, MT ET DR's 26", traps at 7,200rpm and 1.40 60ft's, E-town and Atco. I have out of the box heads, all interior, tex twin, launching on my own, 3.42 gears, built MN12 trans with heavy internals and out put shafts and stock gearing, no suspension mods, GTO spare/Camaro wheels with ET Street slicks that are atleast 28" tall at the end of the track, 6,000 trap rpm, 1.5x 60ft's, Fayettevill MSP.
Rob took the time and money to make every part of his car work flawlessly for him. I wish I could have done the same. Robs car will stay on top for a long time. It defies what we think we know about cubes, weight and power. He has a truly amazing set up. So I guess what I am saying is that there are a ton of factors that go into ET and MPH. HP is probably the smallest part to tell the truth. You want to see who's numbers are legit. Line both cars up at 60 or so and have at it. That is a true hp race.
Here are some of the factors playing into the whole equation as to why Robs car is "faster and quicker" than my old car. Rob has worked heads, missing pass seat, soft lock clutch, 2-step, 4.11 gears, custom trans with m6 gearing, suspension mods, bogarts, MT ET DR's 26", traps at 7,200rpm and 1.40 60ft's, E-town and Atco. I have out of the box heads, all interior, tex twin, launching on my own, 3.42 gears, built MN12 trans with heavy internals and out put shafts and stock gearing, no suspension mods, GTO spare/Camaro wheels with ET Street slicks that are atleast 28" tall at the end of the track, 6,000 trap rpm, 1.5x 60ft's, Fayettevill MSP.
Rob took the time and money to make every part of his car work flawlessly for him. I wish I could have done the same. Robs car will stay on top for a long time. It defies what we think we know about cubes, weight and power. He has a truly amazing set up. So I guess what I am saying is that there are a ton of factors that go into ET and MPH. HP is probably the smallest part to tell the truth. You want to see who's numbers are legit. Line both cars up at 60 or so and have at it. That is a true hp race.
Drifting
Joined: Jun 2006
Posts: 1,702
Likes: 1
I agree that HP is not the determining factor in relationship to maximum ET performance. However,HP does play the primary role in determining the MPH produced. Example,I have run numerous 138/137 MPH runs with a 1.6X shorts and 135/136 MPH runs with 1.8X shorts. The ET suffered greatly when comparing the two different short times,but the loss was only approximately 2 MPH when comparing the same two short times. The HP that a engine produced is generally a constant number (MPH) and is not affect as dramatically as ET when variables are introduced,thus MPH is less driver dependent than ET.
Pray,
Both you and Robz cars are (were) extremely fast,this is not meant to be a knock on either car or driver.
OP,
Sorry for stealing your thread. Please continue to post up all the dyno numbers that are received. Thanks for taking enough interest to do so...don't take all of this crap too personally...thread bashing is sometimes the norm around here!
Pray,
Both you and Robz cars are (were) extremely fast,this is not meant to be a knock on either car or driver.
OP,
Sorry for stealing your thread. Please continue to post up all the dyno numbers that are received. Thanks for taking enough interest to do so...don't take all of this crap too personally...thread bashing is sometimes the norm around here!
Last edited by 98vettedave; Aug 5, 2009 at 07:43 AM.
Burning Brakes
Joined: Feb 2004
Posts: 1,069
Likes: 8
From: Sanford NC
I agree that HP is not the determining factor in relationship to maximum ET performance. However,HP does play the primary role in determining the MPH produced. Example,I have run numerous 138/137 MPH runs with a 1.6X shorts and 135/136 MPH runs with 1.8X shorts. The ET suffered greatly when comparing the two different short times,but the loss was only approximately 2 MPH when comparing the same two short times. The HP that a engine produced is generally a constant number (MPH) and is not affect as dramatically as ET when variables are introduced,thus MPH is less driver dependent than ET.
Pray,
Both you and Robz cars are (were) extremely fast,this is not meant to be a knock on either car or driver.
OP,
Sorry for stealing your thread. Please continue to post up all the dyno numbers that are received. Thanks for taking enough interest to do so...don't take all of this crap too personally...thread bashing is sometimes the norm around here!
Pray,
Both you and Robz cars are (were) extremely fast,this is not meant to be a knock on either car or driver.
OP,
Sorry for stealing your thread. Please continue to post up all the dyno numbers that are received. Thanks for taking enough interest to do so...don't take all of this crap too personally...thread bashing is sometimes the norm around here!
Le Mans Master
Joined: Sep 2006
Posts: 9,106
Likes: 166
From: PA
Not sure what you're saying here? You agree or disagree with what I said? If you would like calculate the HP of my H/C/I 6spd car at 444rwhp dyno SAE. Trapped 130.18mph
Factors that you may or may not be taking into effect.
60ft 1.55
race weight 3275lbs approx
DA -1700
10.81 ET
High RPM power band 6400rpm peak.
Cars with lower RPM peak tend to trap high in the 1/8th and not as sizeable gains in the 1/4. For example my car used to pick up 30mph+ on the back half. However now it only picked up 26.xx with 100rwhp more and 120rwtq. Trapped 3mph faster in the 1/8mi though.
Factors that you may or may not be taking into effect.
60ft 1.55
race weight 3275lbs approx
DA -1700
10.81 ET
High RPM power band 6400rpm peak.
Cars with lower RPM peak tend to trap high in the 1/8th and not as sizeable gains in the 1/4. For example my car used to pick up 30mph+ on the back half. However now it only picked up 26.xx with 100rwhp more and 120rwtq. Trapped 3mph faster in the 1/8mi though.
Really, how profound of you...NOT. The MPH HP equation used by the performance calculators are based on weight to HP ratio. So primarily what it is tell you is that a car weighing 3400# going 138 MPH is making approximately 600 RWHP on that pass under said conditions. All of the other factors you mentioned are only a part of the equation that produced the trap MPH on that one pass. Trap speed can be calculated into HP produced,thus giving you a reasonable tool (within approximately 2%) so as to compare your dyno numbers (HP) with the actual HP produced at the traps. As always this is based on a competent driver and under reasonable weather conditions.
Robz car running in very good weather condition was making some serious HP as evidenced by his high MPH in relationship to the supposed dyno HP produced,this was far more than a mire 50 HP could have contributed too.
Robz car running in very good weather condition was making some serious HP as evidenced by his high MPH in relationship to the supposed dyno HP produced,this was far more than a mire 50 HP could have contributed too.
Le Mans Master
Joined: Aug 2005
Posts: 5,130
Likes: 3
From: Winter Park FL
Not sure what you're saying here? You agree or disagree with what I said? If you would like calculate the HP of my H/C/I 6spd car at 444rwhp dyno SAE. Trapped 130.18mph
Factors that you may or may not be taking into effect.
60ft 1.55
race weight 3275lbs approx
DA -1700
10.81 ET
High RPM power band 6400rpm peak.
Cars with lower RPM peak tend to trap high in the 1/8th and not as sizeable gains in the 1/4. For example my car used to pick up 30mph+ on the back half. However now it only picked up 26.xx with 100rwhp more and 120rwtq. Trapped 3mph faster in the 1/8mi though.
Factors that you may or may not be taking into effect.
60ft 1.55
race weight 3275lbs approx
DA -1700
10.81 ET
High RPM power band 6400rpm peak.
Cars with lower RPM peak tend to trap high in the 1/8th and not as sizeable gains in the 1/4. For example my car used to pick up 30mph+ on the back half. However now it only picked up 26.xx with 100rwhp more and 120rwtq. Trapped 3mph faster in the 1/8mi though.
Second, I picked up 30MPH on the back half in my bolt on car.
Thats not supposed to happen.
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Le Mans Master
Joined: Aug 2005
Posts: 5,130
Likes: 3
From: Winter Park FL
Drifting
Joined: Jun 2006
Posts: 1,702
Likes: 1
Oh,by the way my monies on Nick if the race is two out of three. I figure that the Fartster can't make two consecutive runs without something going boom.
Le Mans Master
Joined: Aug 2005
Posts: 5,130
Likes: 3
From: Winter Park FL
When running at certain tracks out east with ideal weather (DA) the unexpected seems to be common place. Nothing surprises me anymore. I just accept it as being part of the landscape (regional) advantages.
Oh,by the way my monies on Nick if the race is two out of three. I figure that the Fartster can't make two consecutive runs without something going boom.
Oh,by the way my monies on Nick if the race is two out of three. I figure that the Fartster can't make two consecutive runs without something going boom.
When I am making good consistant passes the back half is 28 like it should be. Every single time. I think some people see inflated back half MPH cause they are inconsistant with their launch or shift RPM. That means you Fartpipe!You don't give me a chance in a one pass winner take all race? Of course I said if I stay NA. Meaning I will have a H/C setup that works with this stroker and making hopefully at least 525.
But boost is soooooo tempting.
Drifting
Joined: Jun 2006
Posts: 1,702
Likes: 1
I don't take any thing you say as a knock bro. You are like me, straight forward. When my shorts differ it is about a 2-4mph difference. But if I am spinning the car doesn't recover so I have to pedal and what not killing time and mph. Plus you have shifting as a major factor in trap speed. ET is more driver dependant than MPH but I have seen two different drivers in the same car differ 10mph before. Just like stock cars. You have Ranger running 11's@117 and Joe Snuffy running 13's@110 in stock Z06's. I also think actual HP is completely dependant on weather just as ET. Uncorrected on a some what warm day my motor put down 590+. So you can imagine what it puts down on a -1,500 day. I think summer to winter I would see about a 5mph increase in trap and that was not in the best of weather. Any way. I think we are saying close to the same thing and I value you experience and input. It all makes for good reading. No bs, just facts.
Burning Brakes
Joined: Jan 2009
Posts: 1,204
Likes: 14
From: Savannah Ga
Hmm so here's something interesting I just read. I don't know if this is true which is why I'm asking everyone's opinions.
I didn't know what type of dyno my car was dynoed on and found out today.
I made 577/518.8 on a dyno dynamics. After I googled in dyno dynamics I read a few articles, about 5 that said dyno dynamics reads much lower than all the other dyno's on the market.
Anyone have any experience with this?
I didn't know what type of dyno my car was dynoed on and found out today.
I made 577/518.8 on a dyno dynamics. After I googled in dyno dynamics I read a few articles, about 5 that said dyno dynamics reads much lower than all the other dyno's on the market.
Anyone have any experience with this?
Burning Brakes
Joined: Feb 2004
Posts: 1,069
Likes: 8
From: Sanford NC
Hmm so here's something interesting I just read. I don't know if this is true which is why I'm asking everyone's opinions.
I didn't know what type of dyno my car was dynoed on and found out today.
I made 577/518.8 on a dyno dynamics. After I googled in dyno dynamics I read a few articles, about 5 that said dyno dynamics reads much lower than all the other dyno's on the market.
Anyone have any experience with this?
I didn't know what type of dyno my car was dynoed on and found out today.
I made 577/518.8 on a dyno dynamics. After I googled in dyno dynamics I read a few articles, about 5 that said dyno dynamics reads much lower than all the other dyno's on the market.
Anyone have any experience with this?
Melting Slicks
Joined: Jan 2008
Posts: 2,394
Likes: 0
From: Goldsboro NC
Brett you are correct....if you want a high *** fudged dyno number...hop on a dyno nynamics because 95% of the time they'll be messed with so the car owner can get a chubby on their number and not be humbled by the dyno like the rest of us poor folk
Burning Brakes
Joined: Jan 2009
Posts: 1,204
Likes: 14
From: Savannah Ga
Paxton novi 2000, lg pro longtube headers, cat delete, meth injection
Le Mans Master
Joined: Aug 2005
Posts: 5,130
Likes: 3
From: Winter Park FL
I was just pointing it out to some that wonder why some see big back halves with little power.