Drag Racing Technique Improve your track times

Mr Gasket drag 2000

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Old 07-22-2002, 08:51 PM
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Post Mr Gasket drag 2000

I just recently built a 406 for my 68 camaro. The motor was dynoed at 583 hp. I can't wait to get it to the track to see what it will do in the quarter. The only problem is my car is not currently "legal" to drive at the track yet (need to add a cage and some other safety items). My question is does someone have the Mr Gasket desktop drag 2000 software that I could plug my numbers into to get an idea of what the car may run in the quarter. Thanks

------------------
12 second 400 sm blk 79 Street Camaro. 68 camaro with 400sm blk street/strip project
http://www.wilsonmotorsports.net
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Old 07-22-2002, 09:00 PM
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I have Drag Racing Analyzer V3.0. I've never used it but installing right now. Post your numbers and I'll see what I can do for ya.


EDIT: Man, this program kicks major rear!!
------------------
94 Z28 A4 GU5
Currently in the shop
TransGo Shift Kit

[This message has been edited by DarkHorse (edited July 22, 2002).]
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Old 07-22-2002, 09:26 PM
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I'm not sure exactly what you need but here it goes: 583 hp @6500; 510ft lb tq @5500;
4.10 gears; TH400 with 4000 stall; 68 camaro weighs around 3200 lbs, running 28x10.5x15 tires in rear. Let me know if you need any more numbers.

Thanks,
Cory



------------------
12 second 400 sm blk 79 Street Camaro. 68 camaro with 400sm blk street/strip project
http://www.wilsonmotorsports.net
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Old 07-22-2002, 09:29 PM
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Slicks? How bout the converter? you may have put that in there. Hold on I'll run it real quick.
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Old 07-22-2002, 09:37 PM
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Here's the first run. PC driven, no tirespin. Ran 225/70/15 tires up front and shifted at 6500 I believe:

Analysis Report

Wt/HP Ratio = 5.74 (corrected for weather at track)

Comparison of this vehicle's performance to a typical race vehicle:

This Veh Typ Veh Advantage *

60 foot (sec) 1.61 1.37 -.23 sec
660 foot (1/8 mile) 7.05 6.36 -.69 sec
1320 foot (1/4 mile) 11.02 9.99 -1.04 sec
1320 foot MPH 124.43 133.12 -8.69 MPH

* Advantage of This Vehicle over the Typical Vehicle


Your vehicle's 1/4 mile MPH is 124.4 MPH
where a Typical vehicle would run 133.1 MPH.
This is EXTREMELY low and could possibly be improved by:
- Increasing Efficiency in the Transmission Specs menu.
- Reducing Frontal Area or Drag Coefficient in the Vehicle Specs
menu.
- Increase the Tire Diameter for the Rear Tires (Front Tires for
Front Wheel Drive cars) in the Wheel/Tire Specs menu.

- Reducing Converter Capacity in the Transmission Specs if"
you are running a converter (however your stall RPM will drop
also.

Note: Vehicles with torque converters generally run a lower
MPH than clutch vehicles due to additional converter slip.


The Converter Stall for this combo is 3440 RPM
at a percent throttle opening of 70 %.
If your actual converter stall RPM is higher than this, try
increasing Converter Capacity in the Transmission Specs menu, or
change the engine power curve to produce more torque at your
converter's actual stall RPM.

If your converter's stall RPM is lower, try reducing Converter
Capacity or decreasing the engine power curve.

This Converter Stall RPM is very much less than the peak torque of
the power curve. Performance of this vehicle (and the actual
vehicle) may improve with a 'looser' converter. Try increasing
Converter Capacity in the Transmission Specs menu to simulate a
'looser' converter with a higher stall RPM to see if performance
improves.

Note: Fuel economy will most likely drop with a 'looser' converter.


Try setting Shift RPMs in the range of 7200 RPM
to 7000 RPM in the Driving Specs menu.
Because of the shape of this torque/HP curve, this/these RPM(s)
will likely give good performance. You can also select 'Computer
Picks RPMs' for the type of Shift RPMs in the Driving Specs menu
for the computer to always pick good shift RPMs.


End of Analysis Report
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Old 07-22-2002, 09:39 PM
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ERROR: Last run was you driving 70% on the gas at launch. Here's the PC driver, no tirespin:

Analysis Report

Wt/HP Ratio = 5.74 (corrected for weather at track)

Comparison of this vehicle's performance to a typical race vehicle:

This Veh Typ Veh Advantage *

60 foot (sec) 1.51 1.37 -.13 sec
660 foot (1/8 mile) 6.91 6.36 -.55 sec
1320 foot (1/4 mile) 10.87 9.99 -.89 sec
1320 foot MPH 124.57 133.12 -8.55 MPH

* Advantage of This Vehicle over the Typical Vehicle


Your vehicle's 1/4 mile MPH is 124.6 MPH
where a Typical vehicle would run 133.1 MPH.
This is EXTREMELY low and could possibly be improved by:
- Increasing Efficiency in the Transmission Specs menu.
- Reducing Frontal Area or Drag Coefficient in the Vehicle Specs
menu.
- Increase the Tire Diameter for the Rear Tires (Front Tires for
Front Wheel Drive cars) in the Wheel/Tire Specs menu.

- Reducing Converter Capacity in the Transmission Specs if"
you are running a converter (however your stall RPM will drop
also.

Note: Vehicles with torque converters generally run a lower
MPH than clutch vehicles due to additional converter slip.


The Converter Stall for this combo is 4280 RPM
at a percent throttle opening of 100 %.
If your actual converter stall RPM is higher than this, try
increasing Converter Capacity in the Transmission Specs menu, or
change the engine power curve to produce more torque at your
converter's actual stall RPM.

If your converter's stall RPM is lower, try reducing Converter
Capacity or decreasing the engine power curve.

This Converter Stall RPM is somewhat less than the peak torque of
the power curve. Performance of this vehicle (and the actual
vehicle) may improve with a 'looser' converter. Try increasing
Converter Capacity in the Transmission Specs menu to simulate a
'looser' converter with a higher stall RPM to see if performance
improves.

Note: Fuel economy will most likely drop with a 'looser' converter.


Try setting Shift RPMs in the range of 7100 RPM
to 6900 RPM in the Driving Specs menu.
Because of the shape of this torque/HP curve, this/these RPM(s)
will likely give good performance. You can also select 'Computer
Picks RPMs' for the type of Shift RPMs in the Driving Specs menu
for the computer to always pick good shift RPMs.


End of Analysis Report
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Old 07-22-2002, 10:59 PM
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Thanks for the help. I was hoping that it would be a 10 sec car. Now I just need to check the stall it seems. I am running a 4000 stall torque converter if that helps at all. I am running slicks and they are 28x10.5x15. The fronts are 175x15 (15x3.5" rim) I hope this information will help. Thanks again.

Cory

------------------
12 second 400 sm blk 79 Street Camaro. 68 camaro with 400sm blk street/strip project
http://www.wilsonmotorsports.net
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Old 07-22-2002, 11:10 PM
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Could you try this with a 4500 stall torque converter also. Thanks

------------------
12 second 400 sm blk 79 Street Camaro. 68 camaro with 400sm blk street/strip project
http://www.wilsonmotorsports.net
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Old 07-23-2002, 08:34 AM
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Sure, I'm at work right now and I finally get to pick my car up tonight so.... give me a while. I'll run it in both configurations again so that you can see what's going on. Also, do you have some shift points that you want to try?
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Old 07-23-2002, 10:52 AM
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Could you try 6700 6900 and 7000 for shift points. It would be good to see which one the car and motor like best.

Cory
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