Jump to content
SAU Community

Recommended Posts

just looking at doing cams on my rb25det neo

just wanting to know what people have done

resaults before and after

driveability

power delevery

where the power changes etc

any dramas people have had

thanks in advance

and any thing else u can think of

Link to comment
https://www.sau.com.au/forums/topic/232770-cams-r34-gtt/
Share on other sites

260 deg poncams type B.

they seem to make more power everywhere (10-15kw with a HKS GT-RS) with a slightly lumpier idle.

need to check valve clearances (+shims) which can add to the cost of installation.

depending on your application they are a good thing but if you are chasing higher peak power it will be cheaper to buy a bigger turbo.

Link to comment
https://www.sau.com.au/forums/topic/232770-cams-r34-gtt/#findComment-4082884
Share on other sites

i have following mods

gcg gt3076

sard 650cc injectors

splitfires

pfc

avcr

fmic

3'" dump apexi ni evolution 3.5" cat back

sard reg walbro pump

hks fuel rail ( latest edition

z32 afm

car needs a pfc retune

so figured miswell get something else done at teh same time

with gtt solid lifters does it need shims?

Link to comment
https://www.sau.com.au/forums/topic/232770-cams-r34-gtt/#findComment-4082934
Share on other sites

head stays on with poncams but will probably require shimming. the factory valve clearances are different from the recommended valve clearances from Tomei. some of the smarter guys here might be able to clarify if factory clearances are ok or not in the real world.

Link to comment
https://www.sau.com.au/forums/topic/232770-cams-r34-gtt/#findComment-4082965
Share on other sites

Almost positive you will require shimming. I have Tomei Poncams in my GTT and the tapping sounds like a machine gun. The factory valve clearances are definitely different to Tomei's.

It was suggested to me that it wasn't causing any problems, hence why I am driving it, but I will be having mine shimmed soon anyway.

Link to comment
https://www.sau.com.au/forums/topic/232770-cams-r34-gtt/#findComment-4083527
Share on other sites

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

    • By popular demand.. it was a coil. Got my hands on 1 new OEM coil, replaced with the one that made the less noise difference when I unplugged it while the car was running and started the car up. No stutter and the engine light was gone. I guess I’ll buy the other 5 they have lol
    • No, code 21 is very straightforward. It can only be the things described in that diagnostic flow. In fact it has no way of knowing that the spark plug resistance is out of spec.
    • Hi, SteveL Thank you very much for your reply, you seem to be the only person on the net who has come up with a definitive answer for which I am grateful. The "Leak" was more by way of wet bubbles when the pedal was depressed hard by a buddy while trying to gey a decent pedal when bleeding the system having fitted the rebuilt BM50 back in the car, which now makes perfect sense. A bit of a shame having just rebuilt my BM50, I did not touch the proportioning valve side of things, the BM50 was leaking from the primary piston seal and fluid was running down the the Brake booster hence the need to rebuild, I had never noticed any fluid leaking from that hole previously it only started when I refitted it to the car. The brake lines in the photo are "Kunifer" which is a Copper/Nickel alloy brake pipe, but are only the ones I use to bench bleed Master cylinders, they are perfectly legal to use on vehicles here in the UK, however the lines on the car are PVF coated steel. Thanks again for clearing this up for me, a purchase of a new BMC appears to be on the cards, I have been looking at various options in case my BM50 was not repairable and have looked at the HFM BM57 which I understand is manufactured in Australia.  
    • Well the install is officially done. Filled with fluid and bled it today, but didn't get a chance to take it on a test drive. I'll throw some final pics of the lines and whatnot but you can definitely install a DMAX rack in an R33 with pretty minor mods. I think the only other thing I had to do that isn't documented here is grind a bit of the larger banjo fitting to get it to clear since the banjos are grouped much tighter on the DMAX rack. Also the dust boots from a R33 do not fit either fyi, so if you end up doing this install for whatever reason you'll need to grab those too. One caveat with buying the S15 dust boots however is that the clamps are too small to fit on the R33 inner tie rod since they're much thicker so keep the old clamps around. The boots also twist a bit when adjusting toe but it's not a big deal. No issues or leaks so far, steering feels good and it looks like there's a bit more lock now than I had before. Getting an alignment on Saturday so I'll see how it feels then but seems like it'll be good to go       
×
×
  • Create New...