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Rb25det Cam Shafts

frozenwaffles

By frozenwaffles,
in Engines & Forced Induction

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frozenwaffles Mentor

frozenwaffles

Posted
Posted

OK, so firstly....when fitting cam shafts into your engine...be sure to tighten the bolts holding the bearing clamp over the cam lobes that are having to push down on the valves first!!!

you do this to avoide snapping the camshaft like i just did! and these were Tomie Camshafts that i just purchased second hand for a very good deal.

this was a very expensive $500 lesson i just learned!

anyway life goes on and i must not let my anger consume me anymore....

so time for more cam shafts! i will be buying these on monday or tuesday and as a result i now have a new choice....

Just Jap are the only place i know that has the Tomie cams instock and they are $1200. i know a place i can get the HKS stage 1 cams for my RB25 for $1500 for the pair.

so given now that there is only a $300 difference...should i get the HKS ones for the Topmie ones???

Points to consider:

i am running a HKS GTRS turbo with Plazmaman Plenum and HPI Ex Manifold and 3" Kaikimoto Exhaust and HKS Dump (power FC for computer and all other normal supporting mods, IC, Inj, AFM, etc)

Car is driving 90% on the street to work everyday. it sees track time approximatly once a month.

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WARLORD Veteran

WARLORD

Posted
Posted (edited)

what power was the car making with out cams?

i had a similar set up with HKS INLET, Duration 256. Lift 8.8mm,EXHAUST, Duration 264. Lift 9.0mm and they are excellent you can get them deliverd for just under a$1000.

Edited by WARLORD
Dale FZ1 Veteran

Dale FZ1

Posted
Posted

As an alternative, price up a set from Kelford and Tighe. Neither are likely to retain VCT, so factor in vernier cam gears (if you don't have them already).

The Jap stuff is obviously very good, but remember there are alternatives - provided you're then prepared for an hour on the dyno to dial the cams in.

Bummer about breaking a camshaft though. Hasten slowly, and use your eyes as you go.

SATO GTS Community Regular

SATO GTS

Posted
Posted

So sorry to hear about the incedent.

I chose the HKS cam as they are the largest cam that retain the VCT on the inlet which is exactually the same as warlord's spec's.

This is a choice if you are considering retaining the vct.

other then that go the kelford or camtech.

frozenwaffles Mentor

frozenwaffles

Posted
  • Author
Posted

Ah yes well you see here lies a small thing... I did snap the exhaust cam. But in my fustration and anger for being so stupid I just threw it all out and in doing so dropped the intake cam and damaged it.

Swiper the Fox Grand Master

Swiper the Fox

Posted
Posted
Ah yes well you see here lies a small thing... I did snap the exhaust cam. But in my fustration and anger for being so stupid I just threw it all out and in doing so dropped the intake cam and damaged it.

looks like a new set then eh.

are you sure Camtech ones are non VCT?

Swiper the Fox Grand Master

Swiper the Fox

Posted
Posted (edited)
So on to what to order tomorrow morning...

Hks cams or tomei poncams???

or should I try Procams 260 with 8.8mm lift?!? What happens if I don't upgrade to new vale springs?

all depends on seat pressure vs boost level you are planning to use

Edited by DiRTgarage

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