R33 speed limiter

[cat_back racer]

Does NE one kno how to get rid of the speed limiter on R33's? I've heard that you cut wire 51 or 52 on the ECU input, but I want to be certain before i go choppin! NE help would be appreciated.

[<line_up>]

its wire 53, heres a diagram of the ecu hope it helps

[Advan_01]

Any diff between S1 n S2? Cutting wire 53 as well?

[cat_back racer]

Sik thanx dude. I've been lookin for that answer for like six month's! Ahhh the wonderous thing called the internet!

[pstanbis]

Just get an RSM.... about $300 more than wire cutters, but hey..... Probably not entirely necessary unless you have HICAS though...

[timbar32]

See www.powerlink.co.nz/~graeme/faq/. Lots of info!

[pooski]

what does cutting the wire do to the hicas.... if i have the limiter off and am driving over 180 on the track, will it affect my cornering?

[krzysiu]

Dont you also need to get a Fuel Cut Defender cuz when u go over 180 it will limit the fuel.

[knore]

Also wire 53 is the speed signal wire for AVCR boost controller, so i dont want to cut it

unless i cut it after where ive spliced in the avcr wire?

[paulr33]

i believe once you cut wire #53 the speed limit is removed and there are no side affects, ie: you can still drive over 180 and its works fine

[knore]

what about hicas? ive heard some things floating around that the hicas goes crazy at high speeds

[rs73]

Or instead of getting RSM for about $300, you can have my brand new Trust speed de-limiter for $85 (firm)

[knore]

Thats exacly what i was thinking

Easy install, cheap and no problems

[paulr33]

i believe once wire 53 is cut you can't exit (or enter) hicas diagnostics mode. not sure which one but its definetly hicas diagnostics that doesnt work when you cut wire 53

[knore]

So who with an R33 GTSt has cut wire 53?

[rs73]

- What i was told before by other members is cutting wire #53 over extended period is not very good for the HICAS system, also may cause some aftermarket products like AVC-R not functioning properly,

also some turbo timers which uses speed sensors to determine countdown timer.

This is why the Japanese manufacturers made Trust / HKS speed cut thing,

otherwise why bother?.

- Don't think you need fuel cut defender, fuel cut is usually related to overboosting,

don't think it related to over 180kph, so speed cut defender alone should be fine.

whether the full blown RSM GP or a simple trust/hks unit should do.

[paulr33]

i have an r33 gtst with the speed cut taken off, was already off when i got it. not sure how its been removed but it has been. i have an rsm gp also and apexi auto timer. all work fine and hicas works fine too, has for the last year and a bit