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The stock speedo is horribly out at high speeds. My Pivot speed meter, showed 160km/h at the end of the 1/4 mile track, stock speedo showed 180km/h and the sheet said 160.5km/h.

5,500rpm in fifth usually hits the stock speed limiter which is set at 180km/h ain't it?

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well, top of 4th is 180

so I'm thinking 5,500rpm in 5th is about 220 - 240.

Got there probably a little too quick... maybe in around 20 seconds?

stupid big turbo, making my car go too fast.

Should have checked the powerfc, its accurate isn't it?

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205 55' 16" Tyres

4.363 Diff gears

RB20DET G/box ratio's of:

1st - 3.321

2nd - 1.902

3rd - 1.308

4th - 1.000

5th - 0.759

Reverse - 3.636

Please correct the above if wrong...

This is very accurate calc compared to what my PFC reads. 100km/h in 5th on the pfc is 2782km/h. This calc states 2780km/h.

The tacho reads ~2925rpm, so out considerably. :D

R32_GTST.txt

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This is what I will eventually have.

25t box running 3.9:1 diff gears behind the rb30.

Make a nice cruiser + I won't notice the bottom end loss.

Due to the longer *thats if my ratio's are correct* 25t gearbox's first gear I wouldn't want to go a 3.7, would really be a pain in the arse with my ceramic puk clutch.

R32_GTST_25t_Gearbox_3.9_diff_gears.txt

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  • 4 weeks later...

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