ok.........ok, how do i get rid of....................

[ANDYSESTATE]

this funkin flat spot.
After i change gear and floor it............nothing. dunno..
Takes about two seconds before i get any power.

My car is a bog standard 2.2 with only 55k on it.
Have cleaned the Throttle body as it was full of 5hite but still no differance.

Please................

 

[JohnnyN]

Quick and simple. Panel filter, mod the airbox, remove the pre-cat and a remap. If you do all the other stuff yourself you'd be looking at around £35 for a K&N Panel filter and around £299 for the remap.

It really depends on how much money you want to spend?

 

[vocky]

removing the precat gets rid of a good chunk of the flat spot

 

[ANDYSESTATE]

If i do these things do i need to get a remap, or will these things improve the flat spot on there own.............

 

[vocky]

you don't need a remap, but it will remove most of the remaining flat spot

the precat causes 70% of the flat spot

I never bothered with a remap on my vec 2.2 and it ran fine

 

[Daz]

I still got the 30% ...still annoying tho

 

[ANDYSESTATE]

Its driving me round the bend..
I had a GSI before this 2.2 and that had it also it, but not as bad.

 

[Mark Dj]

Just removing the Pre Cat will help out alot. I noticed the difference alot on my Astra 2.2

 

[ANDYSESTATE]

Right then, pre cat it is then, I'll have to wait untill the weather sorts itself out a bit though...

 

[pjevo]

Does removing the precat still allow the car to pass emissions at MOT time?

I had a 320bhp turbocharged Elise which would fry a cat (flames 2meters out the back) so it had to be removed. Put it back on only at MOT time - which was a real pain! :evil:

 

[Daz]

Yup it'll still be ok emmission wise m8