someone please explain my gear ratios

[licky]

Hi everyone. I have a early model gsr (93). From everyone that I have spoke to it seems as if it revs a lot higher through gears than what it should. 5th gear at 100 is at around 3250-3300 rpm. 4thbgear is at 4100. Now I have checked the gearbox and the code matches up to a gsr gearbox code. So could this possibly mean the centre and rear diff has been changed?

If someone could please make sense of this for me that would be great

 

[DOUGMO]

sounds closer to evo ratios, front and rear cw&p may have been changed?? or are you running 10" rims? h34r:

 

[BMGTZ]

these things are so old now that it could have been rebuilt as george suggests with 3.909 instead of 3.545

 

[GeoKez]

Shit Brian/George, don't say that. They are the sort of numbers I get at those speeds with mine, about 3250 @ 100 GPS speed on a 17inch

Hmmm maybe it's time to check the numbers, I figured that was normal.

 

[DOUGMO]

for your car its better imo george

 

[GeoKez]

Yeah agreed. Just means instead of the new rear diff I HAVE to have for the EvoIII gearbox change, it becomes the spare rear diff it's GOOD to have! (Brian understands this).

I'll need to confirm this. I have plenty of video and data that I can confirm what my rev V's speed is, but really need to confirm what a standard 93 GSR is rotating at when at 100.

 

[EVO-00X]

Your speedo/tacho could be out too.
Check your speedo speed vs a GPS Satnav system to compare if they are close to the same speed first.
Also see this link: http://www.4gtuner.com/topic/16116-speed-rpm-5th-gear-ratio/page__hl__speedo__fromsearch__1

 

[licky]

Speedo is spot on with the GPS :/

 

[licky]

So prehaps E3 driveline?

 

[khubner1]

Sounds about on par with mine aswell an I doubt that I managed to land evo gear front and rear from two separate sellers as gsr

 

[licky]

Sounds about on par with mine aswell an I doubt that I managed to land evo gear front and rear from two separate sellers as gsr

Got my hopes up and everything

 

[EVOCPE]

Licky, Kyles is FWD

Deffinately doesn't sound like 3.545 ratios, u should see 3000rpm at 100klm/h if it was 3.545

 

[khubner1]

um i havn't been fwd for 6 months!

belly of the beast

 

[EVOCPE]

Ahh crap

I know your car is AWD, but some reason I forgot... must be the drugs

 

[GeoKez]

Share the drugs dude!

I looked at my Haltech data and I'm the same as Licky. About 3280 @ 100km/h

All the casing stamps say GSR. Rear diff is coming out soon so might count the teeth. Unexpected happy ending if it's a 3.9.

 

[BYBY5L]

Ahh crap

I know your car is AWD, but some reason I forgot... must be the drugs

not enough i suspect??? h34r:

 

[GSRWRC]

Sounds normal to me. I was always at around 3200rpm @ 100kph in my GSR and Mirage in 5th.

 

[CLuTZ]

I used to sit on 3000rpm @ 100kph with 3.545

 

[GeoKez]

Well that clears it up!!!? Lol

 

[khubner1]

does this help? here a photo of my car doing 100 on the m1 (yes i was naughty)