One Thing I Discovered Driving Home...

[Marco-R34GTT]

Anyways, I got the car in Perth, and proceeded to drive it home from the city (I come form a Farm in country WA), so with a good 3 1/2 hours up my sleeve and 350km of road, there is plendy of black stuff to stretch her legs... Little did I know, in fifth, the car is doing 2800RPM and going something like 110/120km!!!

I have an R34 GTT, RB25DET NEO... Is it just me, or is the car geared very very short.... Is ther e a chance my gearbox isn't stock and has tighter ratios? Is there any replacement diffs or longer final drive ratios available? I mean, the car is great, and if nothing can be done about it, I'm fine with that, but if I can somehow get her to do less in the top gear or two, I'll do anything if possible, and within good reason...

Helpies??/

[LBR33]

2800RPM in 5th is about 110-120 in my car too and my box is stock (R33 GTST) and the R33/R34 box's are alm ost identical so it sounds normal to me

[blind_elk]

Do LESS!!!?? My 32 used to do around 3500 in 5th, until I fitted Stagea 4.1 diff. Now does around 2800.

Absolutely nothing wrong with 2800 @110 kph in 5th. It's not a bloody V8 that produces torque from 1500!

[R33GOD]

its very normal. mine does 2800rpm at 100kph

[spin_psycle]

Yeah R32 GTS-t - 3100 at 100km/h in 5th

[DECIM8]

GTT has more torque so makes up for the petrol it munches at 3g at 100+K lol

it was made for red light over taking not highway patrol

[Marco-R34GTT]

My 32 used to do around 3500 in 5th, until I fitted Stagea 4.1 diff. Now does around 2800.

Absolutely nothing wrong with 2800 @110 kph in 5th. It's not a bloody V8 that produces torque from 1500!

Would the Stagea's diff be any different from the diff in my R34?

[blind_elk]

Doubt it - my 32 (a GTS4) was running 4.4 . With a new 25DET, the engine had too much torque for those ratios, so I stuch the Stagea ratios in.

[T04GTR]

yeah. not a lazy v8.

[Abo Bob]

Your 34 has a 4.111 diff ratio. Maybe you can get a 3.9 centre from somewhere.

[Marco-R34GTT]

What Nissan uses a 3.9 centre? From where could I scavenge one?

[gun32gtr]

i reckon 2800rpm isnt bad anyway.id just leave it.

[rgr34]

thats sounds about right.... it does feel weird... especially when ur use to driving cars with lower ratio gears......

[blind_elk]

If you could find a 3.9, it would only drop the revs to around 2670. You then run the risk that it will take too long to get the engine back up into turbo range when you need it to hurry along.

[mrgilly]

thats sounds about right.... it does feel weird... especially when ur use to driving cars with lower ratio gears......

fark, you should try a 34 auto! Old one was right in the drone zone at 90-100 with Kakimoto catback exhaust...

[gun32gtr]

yeh plus at around 3000rpm my gtr isnt to drony

[Marco-R34GTT]

If you could find a 3.9, it would only drop the revs to around 2670. You then run the risk that it will take too long to get the engine back up into turbo range when you need it to hurry along.

Wouldn't knocking it back a cog solve that little problem?

btw, what is the 3.9 out of?

[Abo Bob]

I think the 3.9 is from an auto R33 but I'm not 100% sure.

2670 with stock turbo is well within boost and therefore no problems. I think I even have about 7 psi in 5th at those revs.

[Marco-R34GTT]

Here I'm assuming 3.9 probably the longest/tallest diff to come out of Nissan petrol vehicles that will hold against a tuned RB25DET NEO engine?

[lachlanw]

stagea rs four s does exactly 2500 at 100 . suites me fine