Cubes

I believe R33_racer is pushing 400rwkw odd with 265 slicks on his rb25/30 r33 race car. sky30 is pushing 400rwkw but behind 4wd and that box is still holding well. If you go slapping gears really hard the box may not live but realistically who needs to slap gears with a 300rwkw+ rb30. Roll on the throttle and they smoke the first few gears with ease.

You'll find when one hose lets go the others are not far behind. Thats what I found anyway.

From memory the turbo flywheels were larger where as the N/a flywheels were the same as the dohc rb's. Probably wrong though.

It bolts up but isn't a simple bolt up. So have a fiddle and you will get something sorted with it.

markimak, Try some friction modifier first. Unsure if ford still stock it or not. But failing that simply drop the castrol saf-xa oil in to it that already has the friction modifier in it. OR buy redline again + friction modifier and it will be just as good.

It wouldn't be the lack of fiddling with the vct switch point?

Why not?

Yeah but its something different Dan. Something new/different to play with. You'll probably get bored eventually and venture back to a gtr though. Couple of nice little mods and 350rwkw. Then bang there goes third gear. lol

Mid to low 13sec pass out of a stock car is pretty damn quick. But in saying that the 'old' in comparison r33 gtst with an exhaust, fmic and ecu runs the same times.

If it were possible we could then fit up some of those nice looking 300km/h speedo's.

Mine doesn't have a 38mm gap between the cover. I've cut and welded on a piece from another cover the filled sanded then painted and it looks all one piece.

Regarding emissions. Its the same over here in SA. The problem with using an old bottom end and head combination is that it is extremely difficult for it to meet the newer vehicle emission standards. hence the old you can't use an old motor in a newer car thing. This isn't a problem with the rb30det as providing the bottom end is setup correctly (compression, quench) the head is what determines how clean the motor runs. I haven't came across anything in SA that places restrictions on forced or N/A plus litreage Vs Car weight. No doubt there is though. It would be interesting how well these metal cats work during emission testing/tuning. I believe guilt-toy used a compliance standard type cat. If to pass emissions test it requires the use of a restrictive cat and overly restrictive exhaust power out puts could be severely restricted. BUT I guess at least if the car is defected with a louder exhaust etc its easy enough to throw on the passable exhaust and have it pass the inspection rather than worry about if they will discover the 3ltr under there.

With regards to engine changes. The few vehicle standard blokes I've spoke to have said they can't see a problem with the RB30det as it is essentially just a stroked rb25. Providing no other work is done via camshaft changes etc total power output won't change. Torque will; an increase in torque they don't 'see' as a problem. Was all very vague but you get that from vehicle standards.

Yeah no one really knows. I wouldn't expect them to either; were not exactly a motorsport state.

Ahh yeah the usual spot. They have set them up in/around that location since I can remember.

lol... Quite obvious they would do such a thing as weather warms up. Where abouts at the bay?

Can we bring our own Mice?? Sounds awesome.. Maybe we should organise an SAU game day? What cost would we be looking at for a private day?

If you stroke out the bottom end and leave the head untouched it will make its peak power earlier in the rpm and nose over earlier. in other words rev less. Your going to have to get the head breathing better with a set of cams.

Stumbled upon this a little while back. Gearbox ratio's. Note the RB26 gearbox has longer gears everywhere. You can work out the diff ratio via the speedo drive tooth count. As others have said 21 = 4.363 (gtst) & 4.375 (GTS4) and 20 = 4.11 (GTR etc) 20tooth is also used for the 4.08.

Yeah only a couple of crapo ones where they audio isn't that crash hot. The one I'm after was on the old JMS website. Ran 8.8secs I believe

So not detonation related then? Just age/one of those things?

Simply bolting a turbo on 2 different turbos on to an rb30det with stock inlet, stock cams, stock exhaust manifold. One had a GT35r .82 bolted on to it; nothing was port matched. 17psi 270rwkw My own had a Gt30 .82 bolted on to it; I port matched everything + it did have a little port/polish. 15.5psi 268rwkw Turbo size at this power level I don't believe has much if anything to do with power vs boost. Get the motor breathing better is the best thing you can do.

lol.

Calling regency/vehicle standards I have learnt is a complete waste of time. They are not interested in giving advice. Your best bet is to contact Doug Potts? (I think it is, will need to double check) of whom can sort out the engineering and emissions testing. I haven't called doug myself but I believe emissions testing is 2.5k per pop. So if the tuner doesn't do it right the first time your up for another 2.5k to pass the second time; and hope to all buggery it passes otherwise on it goes another 2.5k. If your going to have it modified legally I would go the rb30 route as the rb25 has nothing on the rb30 when they are both modified *forged internals* and legal.

Too hard to say. The power will be up there and it will go hard thats all that really matters. Try not to fixate on dyno numbers. Easy to say difficult to do.