Rev Limiter

Thread view:

Enable EMail Alerts

Start New Thread

Thread rating:

raybun - 21 Jul 2006 01:02 GMT

While unloading my surplus 1990 325i parts I met a fellow that is
racing a 1989-90 325i. He asked if I knew how to disable the rev
limiter. I have no idea how or if it can be done. I offered to find
out. Anyone know if it can be disabled?

Thanks

Ray

Reply to this Message

Enoch Root - 21 Jul 2006 07:05 GMT

> While unloading my surplus 1990 325i parts I met a fellow that is
> racing a 1989-90 325i. He asked if I knew how to disable the rev
[quoted text clipped - 4 lines]
>
> Ray

http://www.bimmer.info/eatchips/
http://www.turnermotorsport.com/html/show_category.asp?txtsearchParamCat=Engine%
20Chips#PerformanceChips:1985-1995Cars

He can install an ECU chip. It is the box closest to the
firewall/windshield and you just pull hard on the clips to take
out the ECU. The above chips are best. The first is better, if available.
The second is Jim Conforti programmed and is available and comparable to
the EATS chip. Both require 91 octane or better fuel. Both remove the
rev limiter to an extent. Both remove the speed limiter. Both change the
ignition timings to give you a smoother idle and faster acceleration. And
that's about it.

I put the turner/conforti chip in mine, and is night and
day performance wise- Oh, also you get slightly better gas mileage, but of
course the gas costs more so there is that. Good luck.

ER

Reply to this Message

> > While unloading my surplus 1990 325i parts I met a fellow that is
> > racing a 1989-90 325i. He asked if I knew how to disable the rev
> > limiter. I have no idea how or if it can be done. I offered to find
> > out. Anyone know if it can be disabled?
> >
> He can install an ECU chip.

Maybe not. If he's racing in a stock class, it's probably illegal.
--
C.R. Krieger
SCCA Scrutineer

Reply to this Message