Speed Check

[The Mafia]

Really quick one -

HOw fast would I be going, doing 5,500rpm in 5th gear? (top gear)

All of the drive train is standard bar the clutch.

I can't reply till this afternoon, but I will be checking email replies.

Thanks guys

[RBFIRE]

i would take my car now and test see the exact km/h

but i dun fink i have such an open road, unless its M5.

i would say, bloody FASSSTTTT....

180km/h?

[paulr33]

past 220 i would say. 4th gear is easy to work out

[rb26s13]

i'd assume 180-190kph.. the standard rb25 gears arent that long are they?

220 at 5500 in 5th.. hmm that doesnt sound right :\

Edited March 9, 2006 by rb26s13

[GTshortie]

past 220 i would say. 4th gear is easy to work out

From Memory, at;

4000rpm in 5th Gear i saw 140km/h

5000rpm in 5th Gear i saw 200km/h or thereabouts

5500rpm i would like to know as well. but 220km/h sounds close.

[caminperth]

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?

[reflex]

stock speedo is terribly out.

205kmh is possible in 4th but at those speeds the speedo can be up to 30kmh out

[Josh]

I had my dial back to zero(could be snap time ) at about 6-6.5k in 5th... not sure how fast.. I reckon about 220

[The Mafia]

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?

[Cubes]

205 55' 16" Tyres

4.11 Diff gears

RB25DET G/box ratio's of:

1st - 3.214

2nd - 1.925

3rd - 1.302

4th - 1.000

5th - 0.752

Reverse - 3.369

Please correct the above if wrong...

~210km/h @ ~5500rpm.

R33_Speed.txt

[Cubes]

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.

R32_GTST.txt

[Cubes]

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

[r0ma]

Its easy to determin on your specific car;

- cruise in 5th at 3000rpm (check speed)

- increase to 4000rpm in 5th (check speed increase)

It will be the same throughout the rev range.

Edited March 10, 2006 by r0ma

[JD-33]

whilst on this topic..

whats the best electronic device or method to remove speed limiter?

cheers,

JD

[Craved]

whilst on this topic..

whats the best electronic device or method to remove speed limiter?

cheers,

JD

Power FC

[33SOM]

whilst on this topic..

whats the best electronic device or method to remove speed limiter?

cheers,

JD

Power FC....

In forth @ 7000rpm is 190km/h in my 33

[Craved]

hahah guess i better not hit redline in 5th again .. 270kph... yikes

[JD-33]

Power FC....

In forth @ 7000rpm is 190km/h in my 33

hrmmm im thinking of the cheaper option.. the Pivot Speed cut unit ..

anyone used/got one of these??

heres a link..

http://cgi.ebay.com.au/BRAND-NEW-PIVOT-SPE...1QQcmdZViewItem

-JD

[33SOM]

Save ya $$ then Or dont speed....

[Craved]

i have an old HKS SLD at home from when i had std ecu ...

or you cut that 1 wire.. cant remember the one