It says race weight at 3584 and 120.872 MPH I should have 494 rwhp with 617 Crank HP.
And, with 3584 race weight with an ET of 11.948, I should have 415 rwhp with 502 crank HP.
My DYNO from LG claims 487.
Is there any solid validity to the madness???
Thanks-
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2KC5 FRC MN6, Bad Head & Cam install, Failed Lifter, Burnt Clutch, Cracked Rotors, Bad Tune, Blown Piston, Blown Head Gasket, and faulty rockers.....but I still come back for more.....Installed/Tuned by LG Motorsports. Best 1/4 Trap: 11.94 Best Top Speed 121.10 on street tires at 1200 Ft ASL.[/center]
Last edited by GR8 WHITE : 08-31-2007 at 04:15 PM.
The calculators are basic physics not accounting for wheelspin/track conditions/drivers ability/etc...
The only thing I would conclude from the mph calculator is that your car has alot more in it.
Both et and mph are dependent on driving ability from launch - stripe.
Obviously, the et is more affected by driver. But if your short shifting by a lot themn your mph will go way down.
You definitely have a 10second on drag radials if you chose to wring her out.
It's fun to crunch the numbers but don't put much stock in calculated formulas.
Obviously your car is making some good power with a 120mph trap speed. It's the launch that really makes a good ET. I was just at Rt66 drag strip last Tuesday and ran a first pass of 13.56 at 116mph spinning the tires through
1st and most of second. The track was terrible that night. I only put down 409 rwhp but with really worn Goodyear supercars the car wouldn't hook at all. My Mcleod dual disc clutch worked perfectly though. No clutch slippage (which probably explains alot of wheel spin)
I ran a firebird on the first pass that left hard out of the hole and only ran a 13.60 at 80mph. Obviously he wasn't making anywhere near my rwhp to only have a 80mph trap, but he put the power down right at the hole to get the same ET as me.
The power that's output by your engine is not "linear". If you've ever looked at a dyno sheet, you know exactly what that means. The Torque output varies with RPM and that variation is not 1:1 - 2x RPM does not mean 2x Torque. To accurately "calculate" your car's performance, the calculation needs to understand how the power changes over time/load/RPM. Obviously, the web-based calculation thingy can't possibly have any idea of the behavior of these variables (nor the biggest variable, *you*). It has to make some kind of an "assumption" about the shape of the power curve. The more different that assumption from reality, the more error in calculated vs. actual performance.
Calculated performance is a waste of time unless it's specifically tailored for your car.
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Wow - Those ar esome really good explanations guys, all o fthem. If there was a factor box called SEAT TIME or DRIVER EXPERIENCE, I would get a MINUS. But overall, I think I did good, I am just curious, with the right tires (and a differential output that can handle the dump), with the RIGHT DRIVER, is my car capable of 10s?
Keep in mind, this is spinning from first, to second, into third as well..... Hence the high MPH I guess....
Wow - Those ar esome really good explanations guys, all o fthem. If there was a factor box called SEAT TIME or DRIVER EXPERIENCE, I would get a MINUS. But overall, I think I did good, I am just curious, with the right tires (and a differential output that can handle the dump), with the RIGHT DRIVER, is my car capable of 10s?
Keep in mind, this is spinning from first, to second, into third as well..... Hence the high MPH I guess....
Thanks all!
Your car may run a high, high 10 with a great 60, great driving, and a perfect day. Not only is it about driving but your combo does your gearing and driving style keep your car in its power range for as long as possible for drag racing. You can never have the best drag car and cornering/handling etc. There is an opportunity cost. For example my malibu runs consistent 10.90s with a 4.56 gear 29.3 in slick and 4800 stall. changed the stall to a 2500 car ran 12.00s. See what I am saying about your combo. Too my car has the potential to run 9.40's on hose but the cam that is in car is ground for NA. Buddy has same car and combo but n2o cam. Car runs 11.40's on motor but 9.50's on spray to my 9.90 on on spray. IF you want the car to really run put a gearing in it that allows it run near the peak hp and launch it at the highest rpm the car can handle with slicks and a sticky track. Make sure the diff and half shafts are bullet proof with no tire spin stuff starts to break unless you have quality pieces. Speed cost Money how fast and how much do you want to spend.
Need to get your sixty in the low 1.5 high 1.4 and about 2 mph and you will for sure run a 10.90. And power shift the living hell out of it.
Wow - Those ar esome really good explanations guys, all o fthem. If there was a factor box called SEAT TIME or DRIVER EXPERIENCE, I would get a MINUS. But overall, I think I did good, I am just curious, with the right tires (and a differential output that can handle the dump), with the RIGHT DRIVER, is my car capable of 10s?
Keep in mind, this is spinning from first, to second, into third as well..... Hence the high MPH I guess....
Thanks all!
Under ALL the right conditions, it's possible your car could run 10.3x's.
Your car may run a high, high 10 with a great 60, great driving, and a perfect day. Not only is it about driving but your combo does your gearing and driving style keep your car in its power range for as long as possible for drag racing. You can never have the best drag car and cornering/handling etc. There is an opportunity cost. For example my malibu runs consistent 10.90s with a 4.56 gear 29.3 in slick and 4800 stall. changed the stall to a 2500 car ran 12.00s. See what I am saying about your combo. Too my car has the potential to run 9.40's on hose but the cam that is in car is ground for NA. Buddy has same car and combo but n2o cam. Car runs 11.40's on motor but 9.50's on spray to my 9.90 on on spray. IF you want the car to really run put a gearing in it that allows it run near the peak hp and launch it at the highest rpm the car can handle with slicks and a sticky track. Make sure the diff and half shafts are bullet proof with no tire spin stuff starts to break unless you have quality pieces. Speed cost Money how fast and how much do you want to spend.
Need to get your sixty in the low 1.5 high 1.4 and about 2 mph and you will for sure run a 10.90. And power shift the living hell out of it.
You might be underestimating how fast these cars are. His mph is down considerably because of driving.
I would agree with your last statement if he was making around 415rwhp/380rwtq.
No believe me I know how fast the Z is. I had a an 02 vette 6m and right off the show room floor with DR 12.64 at 111.98 and my buddy's 03 Z with me driving 11.92 at 116.23 with DR. I am somewhat skeptical of dyno #'s my malibu put down 435 to the ground at 3210lbs. There is no way in hell it would run conistent 10.90's with that RWHP. I believe on a good air day, sticky track and driving it like he stole it high 10's. His best MPH is 121 he will need alot more mph to run 10.30's. Unless he gets a brutal sixty foot were talking low 1.30's. He need about 127-131mph to get 10.30's. Maybe his short shifting etc. Be skeptical of dynos numbers to some extent in relation to et. Great ET= Great driving + the perfect combination good luck and be careful.
No believe me I know how fast the Z is. I had a an 02 vette 6m and right off the show room floor with DR 12.64 at 111.98 and my buddy's 03 Z with me driving 11.92 at 116.23 with DR. I am somewhat skeptical of dyno #'s my malibu put down 435 to the ground at 3210lbs. There is no way in hell it would run conistent 10.90's with that RWHP. I believe on a good air day, sticky track and driving it like he stole it high 10's. His best MPH is 121 he will need alot more mph to run 10.30's. Unless he gets a brutal sixty foot were talking low 1.30's. He need about 127-131mph to get 10.30's. Maybe his short shifting etc. Be skeptical of dynos numbers to some extent in relation to et. Great ET= Great driving + the perfect combination good luck and be careful.
I believe he was asking what his car would do with ideal conditions/driving, not on a consistent basis.
That's where the 10.3x's came in. Don't forget he has a 402 also. You can't go by his trap speed because it's not an indication of what his car should mph.
You proved it above by stating you ran 116mph in a bone stock z06 with 345rwhp/330rwtq
You also proved his car may have a shot at a 10.3x by trapping 127-131.(That's what it should trap in great air).
Not everyone wants to beat on their cars like some of us.
This is obviously not going to be the norm, just a "what if."
There are a few 402's making some big power around here. Let's see what they can do.
I just drove my buddys 402 with H/C and it was very stout. This car has alot more grunt then my car. We'll see how he runs this fall. Maybe he'll let me take a few passes too.
Another buddy of mine who had a 402 with 225 AFR heads ran a 10.7x in 90 degrees after some launch tips.lol
Thnaks for all the input! Yes, this woul dbe a "Best Case Scenario" as I can not afford a new engine, or rear end anymore. I been taking it easy on her, but wow, it feels stronger lately. Outside of the oil consumption issue, I really wanted to know "IS IT CAPABLE OF 10s" given better tires and the right driver/conditions.
Basically, given my HP/TQ and ET/MPH, is it capable?
Keep in mind, those numbers I posted were in Phoenix, AZ. Not the best altitude, or the best conditions.
I believe he was asking what his car would do with ideal conditions/driving, not on a consistent basis.
That's where the 10.3x's came in. Don't forget he has a 402 also. You can't go by his trap speed because it's not an indication of what his car should mph.
You proved it above by stating you ran 116mph in a bone stock z06 with 345rwhp/330rwtq
You also proved his car may have a shot at a 10.3x by trapping 127-131.(That's what it should trap in great air).
Not everyone wants to beat on their cars like some of us.
This is obviously not going to be the norm, just a "what if."
There are a few 402's making some big power around here. Let's see what they can do.
I just drove my buddys 402 with H/C and it was very stout. This car has alot more grunt then my car. We'll see how he runs this fall. Maybe he'll let me take a few passes too.
Another buddy of mine who had a 402 with 225 AFR heads ran a 10.7x in 90 degrees after some launch tips.lol
I did not realize his car was a 402. That make a big difference. As we all know there is no replacement for displacement unless you have a turbo, supercharger or N20. Enjoy the rest of your holiday
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