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WSID Drags TONIGHT!!! (Wed 28/1/04)

Merli

By Merli,
in Events Archive

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DJ984 Mentor

DJ984

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Posted

benm: i was under the impression that in a RWD car you wanna run soft rears to put the weight on the rear tyres when launching so you can get away quick enough.... stiff suspension would just spin and cost time.... can someone elaborate and tell me whether i'm on the right track or not?... (no pun intended)....

Merli Grand Master

Merli

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HOLY S**T!!!!!

what the cortina run? is it 6 or 8 cylinder? (im guessing it's not a 4)....

Newly built. Twin turbo V8 (not sure what ci)

Did one shakedown pass.... 1.2 sec 60 footer, backed off and coasted over the line for a 10 second pass...

benm Grand Master

benm

Posted
Posted
benm: i was under the impression that in a RWD car you wanna run soft rears to put the weight on the rear tyres when launching so you can get away quick enough....
His rear muffler was sparking on the ground when changing into 4th gear doing around 110mph. You can't tell me that is healthy for a quick pass (not that im a pro at drag racing or anything).

I absolutely love the car tho :( :( :(:)

YRL05S Collaborator

YRL05S

Posted
Posted

If it's too soft, the car squats and the IRS changes angle and the tyre contact patch is less, therefore less traction.

But too hard in suspension the tyre (sidewall) needs to be the suspension and take the motion, if you don't have enough sidewall, this will lead to wheelspin.

It is an artform, i don't know much about it but i'm trying.

Benny i've showed you a few times how to launch a powerful IRS car before a few times haven't I?

Roy Grand Master

Roy

Posted
Posted

:(:(

His rear muffler was sparking on the ground when changing into 4th gear doing around 110mph. You can't tell me that is healthy for a quick pass (not that im a pro at drag racing or anything).  

 

I absolutely love the car tho :(:) :) :)

Yeh soft rear susp can help traction off the line, basically inertia moves weight over the rear axle, which increases the friction available.

But i think Bens right, surely there must be such a thing as too soft, as my friend commented, 1-2 & 2-3rd it almost bounces the rear axle off the track :) Shame his wastegate isnt venting to atmosphere, add the aural delight of the T51 high pitch scream

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