Gear ratios
Author
Discussion

BobM

Original Poster:

944 posts

273 months

Tuesday 7th October 2003
quotequote all
Anyone got a gear ratio chart? Done a search and GTRClive did say in one post that he had one but there was no follow up.

If not how many mph/1000 rpm can I expect with a G50 and standard factory wheels/tyres in top gear?

Some web searches have suggested 5th gear as about 0.92 ratio, final drive ratio as 3.44 but from my calculations this would work out at just over 18mph/1000rpm which is obviously wrong!

gtrclive

4,193 posts

301 months

Wednesday 8th October 2003
quotequote all
Email me and I can send you the Excell spread Sheet.
Only have the ratios fo my 6 Speed C4 box and The G50/50 Standard. But the spread sheet works out all you need to know if you put in Tyre size etc.

BobM

Original Poster:

944 posts

273 months

Wednesday 8th October 2003
quotequote all
Cheers Clive, YHM. I'll stick it on my website later.

doz

72 posts

276 months

Friday 10th October 2003
quotequote all
Clive, does your chart work for the Getrag 6 speed? I would also be interested in this but not sure if your calcs will apply.

Doz

BobM

Original Poster:

944 posts

273 months

Friday 10th October 2003
quotequote all
doz said:
Clive, does your chart work for the Getrag 6 speed? I would also be interested in this but not sure if your calcs will apply.
Clive's chart covers the 89 G50 turbo box only - 210mph @7000rpm in 5th

If folks can confirm the gear rations for the various gearboxes I'm happy to incorporate them all into a spreadsheet and stick them on my website.
FWIW I think the G50/00 is 2.69/2/1.53/1.18/0.92

doc_fudge

243 posts

270 months

Friday 10th October 2003
quotequote all
Bob,

If you have a look at a post I made about mid september re gear ratios, you may find some more info.

Hope this helps.
Andy

GTRClive

4,193 posts

301 months

Friday 10th October 2003
quotequote all
All you need to do is alter the Green fields and excell does all the other Calc's for you. I have a List of all the possable gears you can get for the G50, so you could find out your perfect box by just changing the green gear fields. As I recal they tend to only alter 1st and 5th in the G50/50 box.
Will mail the Gear list to our man.

BobM

Original Poster:

944 posts

273 months

Friday 10th October 2003
quotequote all
doc_fudge said:
If you have a look at a post I made about mid september re gear ratios, you may find some more info.
Cheers Andy, found it.