Hi. When driving my cars rev limiter comes in at about 4000RPM in 3rdgear and above, which is most annoying, I think this is due to some sort of preset boost limit. Just wondering if its possible to get rid off, or do i need a new ECU and chip?? Any help appreciated CheeRS Kenny

 

over boost!!
this happens when ur car is not chipped or the over boost hasnt been removed.
your proberly running 1 bar boost on standard ecu chip

 

Ok so now its got a posh name "overboost" How or can i get rid of it? Cheers.

 

lol
get your car chipped mate and a -31 actuator then you can run upto 22psi well if u want

 

Get your ECU chipped "job done"

Cheers

Steve.

 

now that wont be possible with a standard turbo

 

Now thats when it gets interesting cos the car is chipped so does this mean my chip has gone wrong??? Kenny

 

Overboost is a mode the ECU goes into when it reads more than 10psi of boost. The engine will cut out and not accelerate until you have lifted off the throttle and re applied.

You are either running a 195 bhp chip which still has an overboost facility but higher up the boost range. I think this limits the boost to about 14 psi...

Or you are running an unlimited boost chip which has no overboost facility.

I noticed you are in Blackpool....I would suggest going to see Stu + Kenny @ Motorsport Developments. They will sort you out.

 

A chip with a higher boost limit sounds like the fault a possible cure will be to turn the boost down so then the overboost wont come in allowing the car to pull all the way up the revs. Will this work???

 

Thats were ur wrong my standard turbo is peaking @ 1.5 bar and holding @ 1.3

 

Possibly...hard to tell without looking at the car...

 

impressive m8, never thought a standard turb would be up for that amount of boost i guess it must be well on its toes then..

 

u never no im waiting for the bang
Mind u boost guage could be gay but me mate is running 18psi and he said my turbo is bloody loud compared to his