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Gtr Driveline Strenght

druzilla32

By druzilla32,
in Forced Induction Performance

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druzilla32 Mentor

druzilla32

Posted
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Posted (edited)
Theres no defined point - Gearbox especially

It will depend on how its been driven, condition/age, and power delivery.

well i notice you have a lot of power. have you had to upgrade/ replace any driveline parts?

its regarding a street gtr with approx 600-650hp at the fly

occasionally seeing the strip and track

Edited by druzilla32
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Leewah Veteran

Leewah

Posted
Posted

604awkw and I'm still using stock diffs.

Gearbox is a matter of how you drive it like everyone else has said. 3rd will be the first to go once you get decent power but I managed to get 446rwkw in mine before I swapped to the OS gearset.

Stripped the stock gearbox down and it was still in perfect condition.

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Morgs Veteran

Morgs

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I broke a gearbox ~5 days after having my car back on road with a base tune (440rwhp) - but the box was in fairly poor condition to start.

I'd suggest if you're at the point of being serious about track/strip performance you'd want an aftermarket gearset, straight cut or otherwise.

Diffs have been ok so far as with shafts, but I don't exactly give it a hard time

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Beer Baron Grand Master

Beer Baron

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you can blow one with stock power if you work at it. some nice flat shifting into second, and into 4th would be a good way to ensure that the synchros wear out in a matter of days, which will then lead to some nice fractured gears as you bang it into 4th and let out the clutch at 7000 odd rpm. if you treat it more nicely (ie no flat shifting) and use it the way a synchro box is meant to be used then it will be fine for a long time.

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R32-GTS Mentor

R32-GTS

Posted
Posted (edited)

Most twin and tripple plate clutches for gtr's are solid centre. I managed to get a sprung centre nismo twin plate for mine but have still broken 2 gearboxes. 1st box blew third gear and the second box broke second gear under acceleration in gear. This was with 520rwhp on first box and 608rwhp on the second box. New box has 627rwhp to cope with and i dont think its gonna last very long, Maybe a couple weeks. Time for OS Gearset.

Edited by R32-GTS
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ebola Proficient

ebola

Posted
Posted (edited)
Anyone know how much weaker the R32 GTS4 gearbox and Diffs are, what power can a GTS4 handle?

I have *heard* 300kw at the wheels. As has been said though, its how you treat it.

the gts4 has different ratios to a gtr, including a different final drive. Well, according to the specs anyway.

EDIT:: oops, wrong specs

EDIT2: As has been pointed out below, r32 gts-4 is different. Perhaps I should widen my perspective to include other models... Perhaps not.

Edited by ebola
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Warpspeed Experienced

Warpspeed

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GTS-4 and GTR gearboxes are identical, except that the R32 GTS-4's (with the RB20DET) used different ratios. The R33 boxes and diffs are identical ratios.

But driveline strength also must include the clutch and half shafts. The GTS-4 is considerably less than the GTR in both clutch capacity and rear half shaft diameter. It also uses four stud wheels.

If you get an R33 GTS-4 and put a GTR clutch in it, and upgrade the wheel hubs and half shafts, it will be identical to a GTR in both strength and ratios.

But an R32 GTS-4 will have different ratios, but could be made just as strong with the same clutch and driveshaft changes.

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sky30 Mentor

sky30

Posted
Posted
GTS-4 and GTR gearboxes are identical, except that the R32 GTS-4's (with the RB20DET) used different ratios. The R33 boxes and diffs are identical ratios.

But driveline strength also must include the clutch and half shafts. The GTS-4 is considerably less than the GTR in both clutch capacity and rear half shaft diameter. It also uses four stud wheels.

If you get an R33 GTS-4 and put a GTR clutch in it, and upgrade the wheel hubs and half shafts, it will be identical to a GTR in both strength and ratios.

But an R32 GTS-4 will have different ratios, but could be made just as strong with the same clutch and driveshaft changes.

Have tou had the GTR and GTS4 boxes in pieces? Are the gear and sahft sizes the same ( apart from ratio).

Are you sure all R32 GTS4 turbos came with 4 stud wheels??

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Warpspeed Experienced

Warpspeed

Posted
Posted (edited)

Sky30, I have not personally compared the two gearboxes side by side fully dismantled, but know someone that has. There is one bearing with a different Nissan part number, not sure which, but both bearings are physically interchangeable and probably make no real practical difference. It is the sort of production change that car makers sometimes make during a production run.

The 4WD gearboxes are essentially otherwise identical in all respects, and used in both GTR and GTS-4. Gears, casing, shafts, selectors, seals, transfer case, everything are absolutely identical.

Diffs are the same too. R160 in the front and R200 in the rear all are 4.11 ratio except the R32 which has 4.32 diffs. The rear LSD can be viscous, multi-plate, or electronic, depending on what was ordered. Some GTS-4s even have the electronic diff usually only seen in the V spec GTR, though that is extremely rare.

The R34 GTR with the six speed Getrag has different gear ratios and diff ratios again, (3.54, I think ?). The front diff is an R180.

Edited by Warpspeed
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