how do you RR a 2wd car on 2wd RR with traction control that you can't turn off?

 

you have some strange dillemas mate
what type of car is it

 

none yet but might get a 2wd rr and i know my van would't allow it as you can only turn the traction off till 40mph

 

you have got to be the only person to try putting a huge trany van on rollers mate so doubt any one can help you realy

are you going to get a 2wd one or you just asking cos the van is 2wd because i think you would be better off with 4x4 as you do a fare few of em

 

wasn,t really going to put van on was just thinkin that you would have the same problem with something simillar

 

4 wheel drive one Andy..! Mind you it's easy for me to say that, I'm not the one buying it lol

 

shouldnt the run be done in 4th gear? ie/ will be well over 40mph

 

thats what i'm sayin you can only turn the traction contronl off till 40mph then it automaticly cuts back in

 

thats what he was asking loyd

the problem will arise with stuff like bmw,s

 

ah sorry misunderstood the question.

 

does traction control cross reference wheel speed of the driven wheels to that of the wheels not being driven by the transmission?

 

Depends which Dyno.

Also, regarding the Traction issue, most cars that cause problems have a procedure that can be followed to overcome management complications For example, alot of cars, such as Beemers, have a wobbly if they sense the front wheels not turning.

 

it should do mate as it needs to know the speed differance between the two fronts to know if one is skidding

 

yip, think maybe older cars it only picked up the speed from the driving axle

 

i got over it on an astra by disconnecting one of the wheel speed sensors

 

unplug the loom from the abs pump

 

Im pretty sure any Traction control could be overcome one way or another....


very rarely is it an issue anyway.

 

some cars have a "dyno mode" programmed in to the ecu just for this purpose, m series bmw,s rs4 etc

 

You would need a signal generator to give a dummy reading of the no rotating wheel.

 

cant you pull the fuse on the traction control

 

just pull the fuse mate

unless its ignition controld like some cars in witch case pull the engine fuse

 

unplug the 2 sensors on the driven axle

 

i've already given you the definitive answer as recommended by the manufactureres themselves - i have done it that way for years when testing prototype and series production vehicles for the oems in a climatic wind tunnel with chassis dyno ever since the first s-class was released with esp.

when i say the loom to the abs pump, i mean the main loom that goes to the abs/tcs/esp ecu integrated into the abs pump.