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VDC off I almost crashed!!

Originally Posted by shadow85 I have a quaife diff and a TT setup The other night, I tried a WOT pull for the first time with VDC off. In the

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Old 08-25-2018, 01:05 AM   #1 (permalink)
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Originally Posted by shadow85 View Post
I have a quaife diff and a TT setup

The other night, I tried a WOT pull for the first time with VDC off.

In the middle of the 3rd gear pull the car violently and suddenly spun to the right and then to the left before I made it come to a halt. It scared the **** out of me!

Anyone else experience this before?
Interesting.
I'm supercharged with 450whp and 364ft/lbs which comes on a lot earlier with the Si impeller upgrade I recently had done. I have the Cusco 1.5RS LSD which uses a clutch plate system rather than helical gears like the Quaife LSD has.
When the same situation has happened to me with VDC off and I've applied to much power in a straight line and I break traction, typically the back end of the car kicks out to the left and occasionally to the right. As soon as this happens I back right off the throttle and the rear of the car instantly kicks back to being straight again. The rear has never gone from left to right or visa versa and approaching a complete spin out.
I wonder if the Cusco clutch type as opposed to a helical gear type LSD assists with this?
Maybe I lifted off quicker...

Last edited by Optimiser; 08-25-2018 at 07:59 AM.
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Old 08-25-2018, 09:19 AM   #2 (permalink)
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Originally Posted by Optimiser View Post
Interesting.
I'm supercharged with 450whp and 364ft/lbs which comes on a lot earlier with the Si impeller upgrade I recently had done. I have the Cusco 1.5RS LSD which uses a clutch plate system rather than helical gears like the Quaife LSD has.
When the same situation has happened to me with VDC off and I've applied to much power in a straight line and I break traction, typically the back end of the car kicks out to the left and occasionally to the right. As soon as this happens I back right off the throttle and the rear of the car instantly kicks back to being straight again. The rear has never gone from left to right or visa versa and approaching a complete spin out.
I wonder if the Cusco clutch type as opposed to a helical gear type LSD assists with this?
Maybe I lifted off quicker...

Your SC setup doesn’t have the same torque curve as a turbo. It’s not even close. When the turbo spools up you literally get 250/300 extra ft-lbs in an instant.
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Old 08-25-2018, 10:22 AM   #3 (permalink)
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Interesting.
I'm supercharged with 450whp and 364ft/lbs which comes on a lot earlier with the Si impeller upgrade I recently had done.
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Originally Posted by jwick View Post
Your SC setup doesn’t have the same torque curve as a turbo. It’s not even close. When the turbo spools up you literally get 250/300 extra ft-lbs in an instant.
Jwick is rite. I am around the 840nm (620 ft•lb) engine torque according to my Ecutek logs, which is probably more closer to 620nm (450ft•lb) wheel torque @3500RPM

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Originally Posted by Geoff-AU View Post
Oh well since your tuner who isn't there and doesn't know you from a bar of soap asked you to do a WOT pull with VDC off, you should probably listen to him without thinking if it's a good idea....
Well my tuner is one of the best for this platform if not the best. And after I told him what happend he updated with another tune for me to try, possibly one with better traction control? Not sure, havent tried it yet.
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Last edited by shadow85; 08-25-2018 at 10:24 AM.
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Old 08-26-2018, 05:10 AM   #4 (permalink)
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Well my tuner is one of the best for this platform if not the best. And after I told him what happend he updated with another tune for me to try, possibly one with better traction control? Not sure, havent tried it yet.
Please tell me which part of South Australia to avoid if I visit. I don't want to be anywhere near one of your WOT pulls. This kind of irresponsible behaviour is what gives car enthusiasts a bad name. When you get caught or bin it or kill yourself we will all suffer from the resulting media hysteria.
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Old 08-26-2018, 06:10 AM   #5 (permalink)
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Please tell me which part of South Australia to avoid if I visit. I don't want to be anywhere near one of your WOT pulls. This kind of irresponsible behaviour is what gives car enthusiasts a bad name. When you get caught or bin it or kill yourself we will all suffer from the resulting media hysteria.
Man u guys make it sound like I am hell bent on hurting someone on the streets. I am only doing the WOT pulls on a closed industrial road far away from public late at night when there is nobody around. I do not for one second want to try it on normal public roads.

And the only reason why I am doing it is to complete my remote tune.
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