Jump to content
SAU Community

Recommended Posts

Strange about that one Trent, when i called up they said contact the mob up in QLD (which i assume is performance springs)

and said they dont deal with springs....

anyone specific i should speak to?

  • Replies 77
  • Created
  • Last Reply

Top Posters In This Topic

im about to test some camtech cams over the next few weeks, ive heard great feedback and im sure they are just profiled off popular grinds anyway...... I tried a few sets of crow SR cams awhile back and i wont go there again.... disaster.

as for valve springs for your rb or sr stay away from the ones you listed...... they soften up way to quick. Ive been burnt a few times now and since switching back to Ferrea / Brian Crower and the jap gear ive had ZERO issues. We used to use a lot of the performance springs in the v8's we built (big solid rollers) and even then they required swapping out more often than the us-of-a stuff. Then again thier the cheapest and most shops make good coin outta them....

Just out of interest from those who are using them have they had the springs tested after they were removed? i have some kelford ones here for a 26 im about to have tested (done one full season) it will be interesting to see how they fared.

are performance springs and PSI springs the same company?

have you used any of the supertech stuff trent?

marko, do you know what shim size was needed with the cams? i'm guessing its a pretty big one caus u didnt list aftermarket buckets... also what springs did u go for?

big revs on that setup & ur going to be tearing it down regularily to keep it alive

Camtech do a spring and titanium retainer set... might be worth a call? we have used 2JZ ($550rrp) and SR20 ($450rrp), im yet to use their RB kit so im not sure of the price.

when i spoke to malcolm from camtech about my cams, he recommended that i go via 'performance springs' for valve springs

he stated that these springs are best for the gtr - interesting feedback considering camtech actually sell their own springs as well

marko, do you know what shim size was needed with the cams? i'm guessing its a pretty big one caus u didnt list aftermarket buckets... also what springs did u go for?

big revs on that setup & ur going to be tearing it down regularily to keep it alive

shims, buckets, retainers & valves were kept stock - no need to upgrade these bits on my head as recommended by pro engines

there will be no regular maintenance on my engine, remembering its an rb26/30 i wont need to rev it as hard as my rb26 BUT if i want to - it will be on tap :)

when i spoke to malcolm from camtech about my cams, he recommended that i go via 'performance springs' for valve springs

he stated that these springs are best for the gtr - interesting feedback considering camtech actually sell their own springs as well

i just found out why... the Camtech SR20 titanium spring and retainer set i just received is actually BC gear (brian crower gear) :rofl:

Maybe all their jap valve train gear is just BC rebranded? i think the JZ stuff we used previous was very BC like too, and since BC does not make RB26 gear i reckon their solution is Performance springs... something i'm not happy to use..

  • 2 weeks later...
Out of my league with big cams but what is being done with valve sizes , is it worth investigating oversize valves and slightly less aggressive cam profiles in RB26 heads ?

Just curious , cheers A .

very much so in my experience. but there is only room for 1mm oversize in the 26 head

very much so in my experience. but there is only room for 1mm oversize in the 26 head

That's what I'd herd as well , around 1mm . It doesn't sound like very much but being on the periphery of the valve means it probably makes a very real difference to how much gas can get past them with opened up or larger seats/throats .

It may be a case of larger valves with shortish high lift cams (provided the valves don't touch on the overlap phase) may work well .

Personal bent I suppose but I like the idea of really well modified heads and just barely enough cams to get the job done , probably because its difficult to get around cams that have gone too far duration and overlap wise .

Cheers A .

  • 1 year later...
dont forget my 26 was to be a drag engine, with 9200rpm limit... i had hks 272 with 10.2 lift... these cams would be well good to go to 9500rpm...

my 32 gtr has gibson group a cams, same as in the bathurst gtr's, i have -10 on that engine also, these cams will be a shitload better for drivability, thaink about it, if the bathurst gtr's used them they would have had one thing in mind, "torque" and still produced big numbers, and they were 26's not 30's, remember torque is what u want, if u focus on achiving this your car will be a animal....

Hi Mate

Can you please give me the gibson motorsport cam profiles as I would like to get kelford cams to grind me a set. . Your help would much appreciated. .

Edited by NZR32GT-R
Hi Mate

Can you please give me the gibson motorsport cam profiles as I would like to get kelford cams to grind me a set. . Your help would much appreciated. .

this is like asking colonel sanders for his secret kfc recipe - colonel probably didnt even know himself :P

this is like asking colonel sanders for his secret kfc recipe - colonel probably didnt even know himself :P

LOL! ! you stated some specs on the first page of the thread.

Inlet 256 @ 9.5mm lift

Exhaust 278 @ 9.75mm lift

Where did you get this profile information from?

Also I am sure some one has a set of these cams & would be willing to share the profiles. .

I am realy interested in these cams as I have a set of group A turbos as well & I think these cams would suit them better than some Tomei Poncam Type Bs. .

Edited by NZR32GT-R
i am all for sharing info, although, i dont think anyone knows the real profiles of the cams, my post was only what i have heard (is it true though, not sure)

Kewl no problem yea I just wanted to confirm hopefuly some one will give up the secret :-D. .

but the profile you specified sounds like it should work well with group A turbos. .

How would you compare them to the Tomei's?

Tomei Specs:

Inlet 260 @ 9.15mm lift

Exhaust 260 @ 9.15mm lift

Is it better to run more duration on the RB26 as from what I have read the exhaust valves are realy small & only flow like 65% when compared to the inlet valves. .

Kewl no problem yea I just wanted to confirm hopefuly some one will give up the secret :-D. .

but the profile you specified sounds like it should work well with group A turbos. .

How would you compare them to the Tomei's?

Tomei Specs:

Inlet 260 @ 9.15mm lift

Exhaust 260 @ 9.15mm lift

Is it better to run more duration on the RB26 as from what I have read the exhaust valves are realy small & only flow like 65% when compared to the inlet valves. .

flow your head and cam it to suit the flow split, simple solution.

Maybe all their jap valve train gear is just BC rebranded? i think the JZ stuff we used previous was very BC like too, and since BC does not make RB26 gear i reckon their solution is Performance springs... something i'm not happy to use..

Just interested as to why?

Can anyone share their experience with the Lewis Engines valve springs? http://www.lewisengines.com.au/prod7.htm

I thought they use Performance Springs?

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

    • looking for some help and maybe some insight on others experience with a new LSD. R34 GT ran and drive beautifully, but always alot of grip loss due to the open R200 rear end, so I just installed a new 1.5 LSD way into the stock open R200 for a ER34. Simple. Everything seemed right. I test drove for the first time this weekend. as I started to back out the garage the first time slowly with tires straight it sounded and felt like I had a loose or half disconnected drive shaft...that was clucking around loose and shaking entire vehicle, and making it feel like the trans clutch was spontaneously slipping then grabbing very roughly while just letting out pedal slowly. I backed it out went to pull forward with the same noise, shake and slip grab feeling with hesitation, I turned the tires to back out more and then pulled ahead some same thing but worst because of added wheel resistance (which that I expected) puzzled … pulling it back in checking everything over and finding nothing wrong, I tried it the next day. same thing, couldn’t believe how it shook everything again making a terrible noise and making it feel like the trans clutch was slipping and grabbing, but I got it out of garage into the driveway, got it straight, drove forward and then reveres a few times in a straight line everything shaking , causing what felt like clutch slip and grab every time, sounded like right behind front driver tire and I could feel it in the floor board with my feet,... worst right when beginning to let clutch pedal out to engage slightly, shuttering and sounding terrible along the way…I managed to slowly get down the road, babying it the whole way, once I was rolling (out of 1st) seemed to be better and between shifts, then clutch felt closer to normal…not slip/ grab etc., but back down to any stop, straight road or turning, same thing. Made no difference if all tires were straight or if I was turning. All other gauge read out correct. with in 2 miles as planned I reached the empty parking lot and performed the break in procedure that came with lsd, essentially to drive in a figure 8 a bunch.  Did this, binding chattering, and shaking the car the whole way. I drove it back home seemed somewhat normal once I was in straight line and past 10 mph or so, and I know it will “bind” on corners and cause some tires squeal when turning especially from a stop, but when I begin to move it still causes what feels like the trans clutch to slip and jerk badly as well as shaking the entire car, and sounds terrible, that I didn’t expect. I used the fluid they supplied with LSD kit and did the breaking, planning to change fluid as they suggest after breaking, but wondering will it get smoother or less aggressive with use? maybe a 1.5 is just too aggressive for normal road driving?   I have a LSD that I put in my 71 cuda when I restored it, with amazing smooth , quite yet effective results. Different style LSD but that ones a joy to drive. maybe expecting too much from this R200?
    • Join SAU NSW for a flame-grilled feed & flame-spitting cruise! Sunday 17th August 2025 3:30PM Meeting Archies Flame Grille Sylvania Waters 4:45PM Cruise Departure 5:15PM Arrival at Cape Solander Kurnell Meet Location: Archies Flame Grille Final Destination: Cape Solander Kurnell *Disclaimer* There will be a lead and follow car so no one should get lost. If you would like to attend or bring others along please put your name down and a +1 as numbers will be needed prior! This is NOT a race and we will all be adhering to all road rules. If this is what you want please come to one of our many track days. This is an official SAU:NSW event and will be run under a CAMS permit. One of the things that really sets our club apart is our commitment to being true enthusiasts. When on normal roads we strive to maintain good relations with the authorities as well as the public in general. When attending one of Skylines Australia NSW events please try to: • Be aware of surrounding environment and act accordingly. • Drive courteously on the state’s roads as a true enthusiast should. • Understand how important it is to maintain the good name of SAU NSW and thus, treat others accordingly. • Any misbehavior will not be tolerated and you will be asked to leave.
    • Yeah good luck out there! Will be good to see a mighty GTST going harder than the GTRs
    • i will be there 😁
    • Hello!  i just finished manual swaping my r34 skyline with a r33 rb20de box(RB71C)box  When the car is running it squeaks crazy loud and it was smoking from the gearbox area. The gearbox is fine it was tested. The clutch slave cylinder seems like it doesn't fully releases the clutch. I want to ask if this noise is from the throw out bearing or could it be the clutch assembly or disk att.xFliq87Gzw6kImKBVqDebXkj0fBqymk0JaYeP3_3SlM.mp4
×
×
  • Create New...