Speed jump

[graeme16mr2]

Can anyone tell me if my mk2 is ment to do this= driving down the road cara going fine revs hit 4500rpm and it's like a boost kicks in, thing is tho it's a n/a so no turbo, if it's ment to do this can u tell me what it is and if I can make it kick in sooner like 3000rpm

[Peter Gidden]

I assume you're referring to the T-VIS system. More info. here:

http://en.wikipedia.org/wiki/T-VIS

Never heard anyone refer to it as boost kicking in though

It's controlled by the ECU, so no changing when it kicks in without an external RPM switch. In any case, it's most likely Toyota picked the optimium point.

[graeme16mr2]

Thanks for that.

that page was very helpful,