Gidday Guys,
I have a race car with 7m 540rwhp, with a R154 with Os Giken gear
set.
I was wondering if anyone makes a lower(shorter) 5th gear to suit.
Standard 5th gear is .753, I would like around .85, or lower again if possible.
I don't want to lower the diff ratio or tyre/wheel size, otherwise the car will be inbetween
gears around corners, as currently the other ratios are perfect, it just when I get
to the straights that the car feels like it die's when I select 5th.
Currently speeds in the gears
1st 85km/h @7000rpm
2nd 142
3rd 189
4th 229
5th 304 km/h.
As can be seen the gap from 4 to 5 gear is very big. 75km/h (47mph)
Thanks
I have a race car with 7m 540rwhp, with a R154 with Os Giken gear
set.
I was wondering if anyone makes a lower(shorter) 5th gear to suit.
Standard 5th gear is .753, I would like around .85, or lower again if possible.
I don't want to lower the diff ratio or tyre/wheel size, otherwise the car will be inbetween
gears around corners, as currently the other ratios are perfect, it just when I get
to the straights that the car feels like it die's when I select 5th.
Currently speeds in the gears
1st 85km/h @7000rpm
2nd 142
3rd 189
4th 229
5th 304 km/h.
As can be seen the gap from 4 to 5 gear is very big. 75km/h (47mph)
Thanks
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