Cubes

If your having R&R then the only option to try if you really don't want to shell out a few more $$ for a pfc is to crank up fuel pressure and pull out even more volts from the afm, as a result using a lesser load point shooting 'just' under the R&R area of the map. It is more likely to ping, but if done carefully you can gain more power. If it doesn't ping then your on to something good. BUT I don't see this usefull for a car with a std turbo as you really don't want to be pushing the turbo past 12psi. Highflow.. yes it may help.

So... Is breaking an arm quite painfull? I broke my knuckle right through which didn't allow me to make a fist, my index finger would lock trying to make one. That wasn't painfull, suprisingly it only felt a little strange as my finger would simply stop trying to make a fist with no pain.

That sucks.. I've seen the car around in the past. Hope it comes out well and you don't have too many issues with the insurance. Who are you with may I ask?

If water watter really does work they way they say it does then water wetter in a track environment will be much more efficient at what it does.

Its a fine balancing act, but if done carefully I don't see why you can't make good reliable power.

Your HKS guage only shows just over 40degree's for operating temp?!? Either your thermostat is buggered or the temp sender is buggered. Engine oil isn't doing its job if its not getting dirty. This is critical on a street driven motor. Is the redline oil considered a race type oil or is it designed for street duty's that require much more detergents?

It will be running quite a bit of ign. timing, should work ok.

I guess its like my first car. TE Cortina 250. No oil leaks.. Washed the oil sludge off the side of the sump/motor and the think leaked like a siv.

Munro's GTR was setup to run a 9.6:1 comp ratio if I remember correctly. Never did hear what happened to that.. I know it spun a bearing on its first couple of outings..

Turbo's can only flow so much air. THe GTR turbo's will make the same power on the RB30DET as they do on the RB26DETT. Only difference being is the 3ltr's will spool the turbo's quicker, 'average' power will be higher and peak power will be made earlier in the rpm.

I know of a RB30DET that has been running mineral castrol GTX for the last 2 years and making 300+rwkw.

Which makes me wonder.... Solder a resistor inline with the o2 sensor to achieve a leaner cruise and idle... providing it likes to idle at those leaner mixtures. meh ozone smozone... We are heading in to an ice age anyway.

Stick with the 9:1 it will work well, especially with a set of lumpy sticks. Problem is there are no on the shelf pistons that get anywhere near that.. 8.6:1 I think is the closest you will get. Unless CP's run some wierd pinheight, dome config.

The GTR injectors are rated 440cc at 36psi fuel pressure. At 43psi they are rated to flow 485cc. Mine flowed 480cc at 40psi. I've googled ml's per sec.. No idea. Where did you get them flowed? How much?

Pull the controller apart and ensure the spring isn't caught on anything. Mine has done this once resulting in no boost increase. It actually occured because i backed off the controller then wound it back in, for some reason there was no tension on the spring as I could easily blow and suck through the in nozzle of the boost controller. Obviously the IN is the nozzle that runs inline with the bolt adjuster thinga majig.

yer... and throw one of those 'thorpy says they are sick' toyota superchargers on it.

You are going to have to look at custom pistons to get the 9:1 comp ratio. It costs stuff all more for a custom set but at least you get the squish and comp ratio you are after.

How will he machine down the block if the pistons are running the 0 deck clearance as the pistons should be to achieve the correct squish. Unless that is he decides to use RB26/rb25 pistons that have a different pin height, causing the piston to sit lower in the bore. Then machining down the block to achieve a nice squish and resulting in a slightly higher comp ratio.. Why not simply order custom pistons to suit?

sky30 with his 300rwkw monster has gone through quite a few rb20det box's. BUT it is a 3ltr and its torque that kills gearbox's not power. Third gear is appears to be the one to go.. No hard changes, mid way accelerating through third it goes BANG!

Assembly is extra. Assembly isn't simply an assemble. You measure then order bearings etc to suit. Or you start machining to get the clearance you want, thats known as blueprinting. or... you could just slap it together and hope for the best.

The stock exhaust manifolds are good up to around 300rwkw. That is their limit. At a recent SAU dyno day there was an R32 RB30DET making 306rwkw (GT35R) on stock manifold and a R33 RB25DET (GT3040) making around 280rwkw also on a stock manifold.

Custom pistons, obviously its all going to be measured then pistons ordered to suit what you need. Sounds like a nice build up.

There used to be an old 82 Mazda 626 running around Adelaide with a buik v6 in it... That would have been an awesome traffic light grand prix'r.

No it doesn't... Have a look below the tensioner location.... The origional right tensioner has just a hole with no flat surface around it. The origional tensioner locations are to the left/right of the welsh plug.

I too was quite suprised how small the rb20det inlet valves actually are. The RB25's look like monsters next to the 20's.