Jump to content
SAU Community

Recommended Posts

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.

Link to comment
https://www.sau.com.au/forums/topic/302215-rb25det-cam-shafts/
Share on other sites

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

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.

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.

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.

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?

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

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • What copper washer do you guys use on the bleeder bolts? The existing one I have I had no idea where to find it in a local store, I did buy some online but that are only 1mm thick whereas my old one is 2mm+ thick and when I put the new washer out and squeeze the top radiator hose I can hear a bit of air but not with the old one. Does this matter? The new one doesn't leak, but the inner diameter is a bit loose whereas the old one threads on the bolt.
    • Howdy all, after being out a few weeks ago on a spirited drive in my GTR I have 2 issues that oddly have appeared at the same time. Whilst accelerating quickly through the gears all of a sudden i’ve lost power at the top of third gear (below redline around 6000rpm) for no obvious reason.    From that point onwards the car has been running rich on idle, won’t really rev under load without a ton of black smoke and the odd backfire, and dying as a pull up to a set of lights unless I keep the revs up around 1500rpm. In addition when shutting down the car that same night (I was 10 minutes from home) I noticed one of the turbos was significantly noisy on wind down when shutting off the engine. After letting the car cool down overnight it starts up fine, although once it gets to temp the revs start to creep up and down, the exhaust is darker than it should be and it also sounds like it’s running rich (fat note) I’ve put a new set of plugs in it - no change, the old plugs all seemed OK with two of them being somewhat richer/fueled up than the other 3 with 1 being borderline. I’ve smoked tested the intake system via the front of the Turbos, found a split vacuum hose going to the factory boost gauge sender, which I have since replaced.  Also found another leak on the gasket coming off the rear turbo outlet, have also replaced this. After fixing both of these leaks - still have the running rich issue. I’ve also tried another pair of AFM’s - no change here After pulling off the front turbo intake pipes, there is obvious shaft play in the front turbo, which now hisses loudly on light revvs although I can’t see why this would make the car run funny even under idle. I’m curious to know why it’s running rich before I potentially replace/rebuild turbos. The car is completely stock <50,000kms  other than an exhaust. Oil and coolant are all clear. I haven’t bothered with coil packs as it looks like they won’t be the issue due to condition of the plugs. Any help appreciated as I cry myself to sleep!
    • No probs at all. I used to love trying to dig up obscure info for those in need where possible going back 20+ years on SAU.  I did have another look and couldn't come up with any closer match. I'm leaning towards those skirts in your first pic are custom fitments, cut down/extended or from another car entirely and modded to fit an R34 sedan. I would've thought someone in Japan had them and taken a photo at some stage over the last 2 decades but there's nothing. Someone out there must know surely.
    • Welcome mate. Any pics? Even with a DE I'd be well happy if I had that as a 1st car. 
×
×
  • Create New...