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exXU1

By exXU1,
in Motorsport Discussion & Builds

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exXU1 Mentor

exXU1

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Group: Members

Posts: 340

Joined: 20th April, 2004

Member No.: 10,298

Skylines Australian a drag strip scenario, 15" rims , high wall micky tompson slicks on rear. smaller walll profile on 15' rims also with MT on front.

Bieng that it is a straight run and hope fully with slicks on back that there should not be too much wheel spin at the front , what could be the outcome .Will it hurt any thing?

For i see that the attessa should not activate if the back is not spinning, particularly down the majority the strip , but rather a tweak in gear changes?

You thoughts and experience please. dry.gif

T

Beer Baron Grand Master

Beer Baron

Posted
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Group: Members

Posts: 340

Joined: 20th April, 2004

Member No.: 10,298

Skylines Australian a drag strip scenario, 15" rims , high wall micky tompson slicks on rear. smaller walll profile on 15' rims also with MT on front.

Bieng that it is a straight run and hope fully with slicks on back that there should not be too much wheel spin at the front , what could be the outcome .Will it hurt any thing?

For i see that the attessa should not activate if the back is not spinning, particularly down the majority the strip , but rather a tweak in gear changes?

You thoughts and experience please. dry.gif

T

to try and answer your question. if the rear wheels are not spinning why bother drag racing a 4WD car? you may as well just disconnect ATTESA or run your engine in a GTST, or a Torana.

rev210 Grand Master

rev210

Posted
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The Attessa will activate. You might notice that under brisk accelleration the torque gauge will climb a bit without any wheel spin under normal circumstances. If you have a bucket load of power then it's going to be very hard to stop the rears spinning on a big launch. I believe that a torque split controller is going to be worth a look to get more from the front early and the abillity to put some heat in the rear tyres before you stage, unless you want to plumb in a switch to turn the attessa off for that.

With slicks on you are going to load up the driveline, basically traction comes at a cost, wheelspin softens the blow so to speak but does slow you down. The shock is higher the more power you have and the more traction you get off the line.

Have you had much to do with the drag strip with the car in it's old setup? With a large horspower upgrade I can imagine the learning curve will be big at any rate.

hope that helps

sewid Grand Master

sewid

Posted
Posted

ATTESSA sends power to the front before wheel spin occurs. It's a pro-active setup rather than re-active. It's going to be sending power to the fronts for sure under the kind of acceleration you'll be experiencing at the drag strip.

exXU1 Mentor

exXU1

Posted
  • Author
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Ok,

lets assume we get wheel spin and the fronts grab and all is norm.

What about the different profile tyres back and rear?

What will be the adverse effect on the drive train?

Satiracally-- i do not think that there will be any.

Who begs to differ?

exXU1 Mentor

exXU1

Posted
  • Author
Posted
The Attessa will activate. You might notice that under brisk accelleration the torque gauge will climb a bit without any wheel spin under normal circumstances. If you have a bucket load of power then it's going to be very hard to stop the rears spinning on a big launch. I believe that a torque split controller is going to be worth a look to get more from the front early and the abillity to put some heat in the rear tyres before you stage, unless you want to plumb in a switch to turn the attessa off for that.

With slicks on you are going to load up the driveline, basically traction comes at a cost, wheelspin softens the blow so to speak but does slow you down. The shock is higher the more power you have and the more traction you get off the line.

Have you had much to do with the drag strip with the car in it's old setup? With a large horspower upgrade I can imagine the learning curve will be big at any rate.

hope that helps

Thank you , sensible approach and answer.

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