Taking the rev limiter off. does anyone no how????

[slippo]

any one no how to take the rev limiter off?

[d6dph]

What engine, And more to the point why?

[SPADGE]

The limiter is in the map
Only a chip change or a re-map will remove it.

[slippo]

325 but switchable auto, in sport i put my foot down in 1st and it revd round to about 4 1/2 revs then the limiter cut in, little bit of popin then it changed up, was wondering if that was just because it was in 1st, or something else? do you no?

[kam-325i]

How far will the engine rev when in neatrul ?

[slippo]

as normal havent taken it to the limiter but it went past 4 1/2 in neutral?

[kam-325i]

might be the Gearbox ECU.......

[slippo]

yeh maybe, it only did it in 1st but that was the only gear i tried, so might take hre for a spin quickly and try the others. thanks

[MONSPORT42]

My autobox cut-out quite often kicks in before the rev limiter if I cane it in first/second especially if it's not thoroughly warmed up. But it goes into limp home mode (third gear). Have to turn off ignition and restart and all is fine. Have made tentative enquiries about remapping the autobox ecu but no one has picked up the gauntlet. Would love to get the sport mode gear changes at optimum torque/bhp to match the engine remap.

[slippo]

did you find it hangs on to the revs more when its properly warmed up?

[MONSPORT42]

Yes, it certainly worked better. I used to go out on track days and would be working it at near max revs in 2nd and 3rd all the time without any problems (in Sport mode). The only problem was overheating of the geabox to the extent where I was just about to fit an extra cooler when ill-health forced me to retire. I've since had a new box and that works fine too.

[StuBeeDoo]

I had a similar problem (manual gearbox though) and it was the throttle position sensor packed-up.
Revved to 4.5-5k then backfired big time. Once revs had dropped back it ran cleanly again until it got back to the same revs.

[slippo]

how easy was the throttle sensor to change? was it costly?

[Brianmoooore]

how easy was the throttle sensor to change? was it costly?

Easy enough to change if you remove the big air hose, although you can't really see what you're doing, and has to adjusted to the correct position (slotted mounting holes).
TPS for a switchable auto is different from the TPS fitted to other E30s.
Your old one may respond to cleaning (they fill with oil that gets into the inlet system from the crankcase breather.