Jump to content
SAU Community

Recommended Posts

Gotta machine rb26 head to fit anything 10.2 mm lift or bigger.

Tomei drop the base circle of the cam shaft so that overall diameter of the camshaft including the lobe is with in the head. The diameter goes from 32 to 30mm, the solid lifters that they supply are larger so that it contacts the smaller shaft. This way you can get more lift without machining the head. Of course I am welcome to being corrected if there is anyone here with TOMEI procams with high lift..

Yorik - I know of a local car running exact same setup as me but with 10.8mm lift 260 Procams, not sure on power output, but these cams obviously need modification/machining of the head to accomodate...

Be interesting to see your results....

The car I'm talking about here is ph1's old car, sold to a guy in Melb, which had 346rwkws... But that was tuned around 3 years ago, Ben (Racepace) has learnt a lot more since then!!!!

Great work Jack :)

Missing the DECA weekend you could say was worth it indeed.

Heard rumours of some good numbers ;)

PS: thanks for actually getting evidence of what i was saying about shootout ;)

makes some figures debateable when people swear by em

Very nice power figure, i have seen a similar setup here is sydney with the T517's making 360 kw, simple setups are the best.

I am also keen on finding out about the cam timing as i already have a set of poncams installed but they are still set at 0. since the car is going back on the dyno soon it would be some handy info ;)

Great work Jack  :)

Missing the DECA weekend you could say was worth it indeed.

Heard rumours of some good numbers ;)

PS: thanks for actually getting evidence of what i was saying about shootout  :rant:

makes some figures debateable when people swear by em

Wasent you drive upto WA last year meant to put all the WA dyno reading to rest??? bleh.gif

Nice work jack.

What speed were you hitting on the front straight at last sandown day???

So these brought the car on boost quicker did they(quicker spoo; time, less lag)?? Or did they just bring on power quicker while the car was on boost? Looking for cams to allow for boost to start earlier in the rev range, dont like lag much....

So these brought the car on boost quicker did they(quicker spoo; time, less lag)?? Or did they just bring on power quicker while the car was on boost? Looking for cams to allow for boost to start earlier in the rev range, dont like lag much....

I haven't really checked exactly when I get full boost now, but it used to be around 5000rpm. But I did see full boost at about 4800rpm in the quick drive after the dyno tune, but it may be earlier, its a bit hard to look at the boost gauge, rev tacho and road at the same time when giving it stick in 2nd gear on the streets... Might have to check it out next time on the track where I can try in the higher gears....

Also Ben (Racepace) said they came on slightly earlier according to the old graph, which I'm still trying to find...

True, your car would have broken down after a few 100 km's. :D

Jack

Next time out at Sandown you should be in the low 1.20's coz u got the power, brakes, suspension and cheater tyres.

The car's definetly got the potential, its just the driver needs more experience!!!

Interloper - that was the point in showing the different modes, so in future when somebody puts up a dyno graph you can have a more accurate idea of what power it's really pushing...

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

    • Had a go at the stuck crush tube this afternoon. Tried things like grips and a chain wrench first but wouldn't just twist straight off. So got to work with a drill. Started small and kept a depth stop on to make sure I didn't drill into the bolt. Made a line of drill holes all the way up and enlarged them. Then a combination of chisel and Dremel to split it all the way up. Levered the split to get oil in there and eventually it gave a bit while levering. Worked it back and forth with loads more oil till it was spinning freely, then with grips I could work it downwards and off. And no significant damage to the bolt (not by me anyway - just the 27 years of rust)
    • Well, I'm tired. I'm tired because about 4PM yesterday, before today's appointment someone immediately bought my bumper. They couldn't get it any other day as they're on the way back to NSW. So I had to do that big GTR conversion I had been planning. Unfortunately, the information on SAU about what you need and how this is done is incomplete. So what should be a simple bolt on affair, yeah, it's not. Did you know if you use all GTR items the bonnet won't close? This little manuever sent me into about 1am the night before trying to dodge a way to get it closed. I will have to revisit this in the next few days  - or maybe not, I may let a body shop figure it out. It all needs to come up and my motivation to pull the bumper off is low. It also seems to hit things in the bay where the GTT bonnet didn't. Yes I used 100% new OEM GTR items. Today, I had the joy of driving to the dyno looking like this: Given I had roughed in the fuel and given sensible but pretty conservative timing, I didn't really bet on having the car drive out any real difference than when it drove in. Sadly due to a miscommunication and laptop fun and games (and almost bricking the dongle, prayers and firmware updates indeed), I ended up using HP Tuner credits to licence the car that was already licenced. So in the end my laptop was used. It turns out my butt dyno is still well calibrated after all this time. The 325kw was on 74% Ethanol, the 313kw line was on 98. The other line is the 'before' line which was 281kw. While the numbers are pretty low, they're pretty in line with what you'd expect. Even if US dynos bump the whole result up about 50KW, gaining 10-15% is similar gains.  The curve of the cam is pretty much spot on with what was discussed as well. All this said, it still feels bad to not see the number you secretly want to see. Even if the car drove great beforehand, and I knew pretty confidently the car would drive out much the same way it drove in due to the nature of a wellish dialled in LS1 not gaining much if anything at all from being tuned from where it was. As expected, the car isn't particularly sensitive to running it at anywhere between 12.0 and 13.0 - And the initial timing at 20deg and 12.0 made 308KW. So 3 degrees of timing, and leaning it out to 12.7 for 5kw, anything above stopped giving any benefit until E85 (which has an additional 2 deg as before). Car itself behaved entirely fine. I found out that 100C = 1.15V! IAT at about 7pm was 19C. I might mess with the bonnet mounting.. but given the REO NEEDS TO BE CHOPPED TO FIT A GTR BAR this is possibly something I may leave gathering (more) dust until it returns to paint jail.
    • It sounds farrrrrrr too cold at your place Duncan... Here I was thinking our 10 degrees overnight is getting cold...
    • oh yeah, reminded this morning....bin lids frozen shut too
    • In my case not, because of total reno. But yeah.
×
×
  • Create New...