Jump to content
SAU Community

Recommended Posts

Hello!

Yesterday my Tomei inlet poncam broke during installation, it seems that it already had some cracks before it chopped off totally.

I´m in discussion with some sellers, and it seems that the Poncams can´t be bought separately (1 cam), so i have thoughts of buying the HKS 272dur 10.2lift step 2 cams to my engine. But ive read that there has to be som headwork done, i thought that it would be fine if i change the valvesprings to HKS ones for max. 10.2mm lifting. Is there anything more that has to be done?

I´m looking for much high end power, and here´s my engine spec. Going for bigger injectors and turbo next winter when i have finished the "break in" period for my new engine. Nearly everything is new, expext for the poncams, wich of there now more is only 1.

Head&exhaust:

Tomei Poncams 260/9.15

Tomei cam pulleys

Nismo timing belt

Greddy exhaust

Custom downpipe/midpipe stainless

Custom manifold (hks copy)

ARP bolted head

Tomei 1.5mm mls headgasket

Garrett GT35R (GT3582R) with .64a/r exhaust housing

Pipercross breeather filter

Apexi 4row intercooler

Tial wastegate 44mm

Tial bow 50mm

Fuel&Ignition:

Nismo 600cc injectors

Nismo fuelpump

Autronic SM2 with cdi iginition

Bottom&cooling:

R34 GT-R -02 engine block -87mm newly drilled and horned

CP pistons weight adjusted and balanced

Verdi rods weight adjusted and balanced

Hardened crank, balanced

Tomei oilpump &restrictors in head

Tomei Buffelplates

ACL Calico coated main&rod bearings

The oil pan is extended with 1.9 liters

N1 waterpump

HKS oil radiator

HKS oil relocation kit

Greddy oilcatchtank

Exedy 2 disc clutch

//Tompa from Sweden

post-50472-1216204424_thumb.jpg

Edited by TP_
With a .64 housing, big cams are a waste.

The housing will restrict power, not the cams/head

Yeah but he said he is going bigger later on, you wouldnt buy cams to suit a turbo your changing soon anyway...

I have decided to go for poncams again, but i´ll buy both inlet and exhaust new. This time with the 260 degree exhaust cam, instead of the 252 which i have now to have some more high end power.

Thanks for the answers!

I´m in discussion with some sellers, and it seems that the Poncams can´t be bought separately (1 cam), so i have thoughts of buying the HKS 272dur 10.2lift step 2 cams to my engine. But ive read that there has to be som headwork done, i thought that it would be fine if i change the valvesprings to HKS ones for max. 10.2mm lifting. Is there anything more that has to be done?

I have these same cams; yes, head clearances for the cam lobes needed to be adjusted (I use the HKS springs too).

Apparently there's not room for the cam to rotate without clearancing.

There are other cams with a smaller base circle but similar lift that do not need clearancing (the lobe's final rotating radius is smaller).

You probably want uprated springs with any lift over 10mm but I'm sure there are people running higher-lift cams without them.

Regards,

Saliya

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

    • Seat of the pants assessment of the new intake: The car is way less "doughy" when hitting the loud pedal, especially off idle when stopped or in traffic, I did use a cheapo lazer thermal thingo to measure the temp around where the pod filter got its air, it was between 55 - 60°C, in saying this the car was shut off and not moving, so the OEM intake pipe was not supplying any fresh air to where the pod was when the car was at least moving A weird bonus was induction noise on the throttle in the cabin increased a bit,  I was worried that I was actually going to lose some of that induction noise I love so much, outside though, when I got the daughter to do a WOT drive by pass for me, the induction noise has increased alot when on the throttle, not quite ITB doort, but well up there I'm extremely happy with the results and have been exploring the country roads in the region  As for house mods: 1.New front fence is up and is awesome, it really upgraded how the joint looks from the street, and the added security is nice 2. Electricians have replace some interior lights, and with more lighting in the garage, a few new motion detecting lights out the front above the garage, front room, and at the front door, which I have already found heaps helpful coming and going, also now has fancy pants CCTV all round the house The only hold point for power though is the solar and batteries due to supply issues, although this will happen over the next few weeks 3. I have done a heap of landscaping out the front and I'm almost ready to do a new small retaining wall with some nice blocks to replace the brick and cemented in rocks around the raised garden beds cemented in river stone "was the fashion at the time" the house was built. I currently have a pallet of retaining wall blocks and 2 bulka bags of 20mm blue metal to replace the wood chip that is in the raised garden beds around the house 4. I now have 3 big raised garden beds for out the back to grow some vegetables, about 70cm high, 200cm long and 100cm wide 5. My 2 compost bins are already pretty full with brown, green and kitchen waste from the landscaping I'vedone so far, but they will probably take a few months to break down, so anything else that gets chopped, trimmed, and kitchen waste will just start filling the base of the raised garden beds to about 30cm before I start throwing 40cm of good compost, and stuff, for the vegetables to grow in, I'll need a few ton of compost and soil, but the local supplier can sent me bulka bags of the stuff Basically the logs, wood chips and a few strategically placed rocks for drainage, will give the beds some good organic materials down low to break down over time, and they will hold moisture during the warmer months to save the water in my big arse water tank if we don't get alot of rain So, all in all, the car and house mods are going well, and I'm really enjoying being retired, I sleep in too 0700 and slowly plod around inside until I feel like actually doing anything, and only work in the yard for as long as want, which has actually been alot over the last few weeks,  although when you look at it, it seems that not a huge amount of work has been done,  until I look at the before I started the work pics Happy days and good times indeed 
    • hahaha yeah. Plan is to get side skirts and probably just rear pods. But going to do them one-by-one. I've got a set that I really like from RHDJapen, but that one isn't shipped to AU. So need to find someone who can get it for me
    • Here's an idea, answer the questions I asked you as they are trying to work out WHY the LSD will be binding up in a straight line.
    • You haven't driven many modern cars then have you? Most of them have sfa steering feel with their stupid electric bullshit steering systems.
×
×
  • Create New...