which cams best suit for GTSS

[bvalve]

To all RB guru,

Which cams suit for RB26 running with GTSS on a GTT?

- Tomei 260 pon cam
- HKS 264(IN), 272(EX)

As i know GTSS is a very responsive turbo, if match with 260 pon cams, will it too over responsive?

 

[[PIMPIN]]

264in/ex?

 

[bvalve]

the HKS cams is 264in and 272ex
was told that this kinda setting is HKS old school cams

 

[Loki]

Have a read of my Tomei Poncams IN 260, EX 252, Lift 9.15 review, which have been installed in my R33 GT-R along with a pair HKS GT-SS turbos:

What A Drive™: Spare Engine Rebuild Update: Tomei Poncams

 

[[PIMPIN]]

the HKS cams is 264in and 272ex
was told that this kinda setting is HKS old school cams

What cams 264/272? I used 264in/ex but never used GT-SS before. Yours is a GTT so one GT-SS turbo only?

 

[bvalve]

Loki,

Thank mate, will go through it....

PIMPIN,
was told is HKS old school cam.
My question is if use twin GTSS on RB26, if use poncam 260in, 252ex, will it be too responsive?
or i should use higher degree cams?

---------- Post added at 02:35 AM ---------- 6 hour anti-bump limit - Previous post was at 02:32 AM ----------

Loki,

so your setup is twin GTSS with 260 poncam type A...if gear 1,2 or 3 will the car wheel spin if full throttle?

 

[[PIMPIN]]

Oh so you have the cams already. Didn't understand initially, thought was some combo recommended to you. Anyway, if you're using an RB26 in the GTT don't even need the GT-SS much less the cams to spin the wheels at full throttle LOL

Either way, I'm sure Loki can fill you in better.

But....

 

[frootloops]

Are you actually going for response? 260s would be fine since you don't have to further do up the head with things such as retainers, valve springs etc....but considering you're using it on a GTT with RB26...wheel spin is to be expected

 

[feezdya]

What cams 264/272? I used 264in/ex but never used GT-SS before. Yours is a GTT so one GT-SS turbo only?

RR, His car is GTT and fully converted with RB26 engine...so running twin GT-SS..

Bvalve - go for pon cam..just plug and play (sorry EJ wrong info for pon cam last time because my engine head already using diffrent shim etc) no need grind, shimming, ratainer etc as the cams are plug and play..unlike HKS, you need to grind your engine head, shimming etc.."banyak kerja"..

Pon cam consider enuff for your RWD unless if you want it for drifting etc, go for higher cams..

 

[cmng]

wheel spin ?

18" rim
255 front and 285 rear tire size can still wheel spin or not ?

 

[feezdya]

wheel spin ?

18" rim
255 front and 285 rear tire size can still wheel spin or not ?

sure can

btw cek ming tq for your service last weekend!!!really appriciate it!

 

[V-Spec]

feezdya, was it as good for cnmg as it was for you? LOL

 

[feezdya]

feezdya, was it as good for cnmg as it was for you? LOL

hahaha damm u EJ..

 

[cmng]

Feezdya

dragged too long
i stuck in between... better one off settle it

 

[Loki]

so your setup is twin GTSS with 260 poncam type A...if gear 1,2 or 3 will the car wheel spin if full throttle?

Nope and my car is putting out 500.84 PS (493 whp) at 1.6 bar, displaying a good power band and a very healthy max torque of 56.24 kgm (551.15 N·m of torque). Full boost at 4000 rpm.

The GT-R's ATTESA-ETS system prevents that. For those unfamiliar with the ATTESA, it's pretty much a 16 bit microprocessor that monitors wheel spin and laterial acceleration. When wheel slip is detected, the ATTESA will transfer up to as much as 50% of the power to the front wheels.

When slip IS detected on one of the GT-R's rear wheels (rear wheels turn 5% or more than the front wheels), the system directs torque to the front wheels which run a viscous LSD. Rather than locking the AWD in all the time or having a system that is "all or nothing", the ATTESA-ETS system can apportion different ratios of torque to the front wheels as it sees fit.

Word of warning to GT-R owners: if you choose to launch the car really hard at say a drag strip event (using the stock front differential), you will likely damage the spider gears in the front open differential. This can be countered, however, by a upgrading the front differential to a decent aftermarket LSD unit.