HKS SS 264 in RB26 - how far can go ?

[joe89]

Hi

What setting of cams u have guys in yours RB26. I have already +4 -2 but i need to know how much i can go without collision. I wanna go +6 -4 - it's safe?

I have stock capacity forged engine and stock head except that cams.

[Piggaz]

Well no one can really answer that for a few reasons.

- What is the deck height? 

- How thick is your head gasket?

- Are your pistons valve relieved?

- Have you decked the head?

Seeing that they're only baby 8.7 mm of lift one would assume quite far. The baby v cam with 8.6 mm of lift swings a total of 30 degrees so 8.7 mm with + 6 should be fine.

[joe89]

- What is the deck height? - stock

- How thick is your head gasket? - 1.3mm

- Are your pistons valve relieved? - yes

- Have you decked the head? - no

 

My rods are Bridgeway H-Beam and pistons CP.

Yes i have baby cams  They are step 1

Soo +6 should be fine, and  exhaust side -4/-5 too?

In 2JZ my friend have intake +7 and exhaust -5 and have amazing spool and good top end. I wanna try to set my cams on the dyno and watch what's happening  So i won't exceed +6 on the intake and what's with exhaust? Same, but in minus right?

 

[KiwiRS4T]

Your RB is not a 2JZ so numbers are irrelevant. Yes set them on a dyno. This is one reason not to cheap out on the tune. It will take a fair bit of dyno time to try different settings of the cams and adjust timing etc to suit.