A Boy's Love For His Rb20

[Roy]

Yeh std 210,000km gearbox. Secret is to use a sprung centre single plate puck clutch and CASTROL SYNTRANS 75W-85.

Wasnt too bad actually. Whilst I have packed on 15kg or so but I can still squeeze into a Caterham....just

[Roy]

Stoked to have my car back ... but the plans to throw the new turbo on and go for a tune is on hold as I have a problem with the brakes which have destroyed near new rotors. So looks like I need a new pair of rotors which is going to set me back 1K so install and tune will have to wait a few weeks

[Mr. Untouchable]

what's the setup your running on the rear mate?

[Roy]

Just R33 GTR 2 pot Brembos with std issue 300mm rotor. I run the same pad compound front to rear. May have to throw on my spare F40 setup whilst I sort this rotor issue. A little bit gutted that some random thing has happened but oh well...f**king cars

[Mr. Untouchable]

yeah sounds a bit odd, unlucky. maybe look at running a different compound pad on the rear? maybe not getting up to temp and being harsh? not good anyway, hope ya sort it and dont lose another pair,

cheers

[sav man]

What did it do to the rotors?

[Roy]

What caused it? Ahhh, an accident. It happens...lol always seems to be to my car. Oh well.

So to continue the theme of no matter what I do to my car it either results in damage of loss of power...it seems my car's owner like corn more than the RB20

[Roy]

With a general bad attitude after getting my car back i took to it with a 9,600rpm rev limit at a motorkhana day and took my frustration out on it. Like all good women she understood my frustration and put up with the abuse I gave her....only to awaken the next morning and regret and decide time to spend some more money on her to show much i "appreciate her "

Teh below pics is from drifting a bend and section of straight blazing 3rd gear on the 9,600rpm limiter before braking to stop in the finishing gate. The site of smoke behind me was hilarious... it seems a std motor can take almost anything you can sensibly throw at it.

[robots]

Haha, Roy!

If you are willing to test the little baby, might as well push it to 10k rpm and see how many track days it survives.

My friend has been running 10k rpm on his 2jz for 4 drifting seasons in Malaysia. And its stock crank and rods. Only forged pistons.

And I believe its still alive.

Edited May 25, 2012 by robots

[Roy]

I will never do it but I have worked out the pulley sizes I would need for the PS etc etc if i tried to spin the RB24 to 10,000rpm. With the solid followers, titanium retainers and Tomei springs then you would think if it was bolted together right then you would be able to spin it to 10k. The little 82mm pistons weight far less then an RB26 piston. The valves are smaller and lighter...problem is my patience and curiosity with trying all this stuff is getting a bit thin and as much as I want to do it I think I need to flog off all my gear and stick with std motors. If they pop then who cares...$600 and soeme spare dosh for some tidy up love and I can be back to having fun with next to no outlay

[Roy]

Started to pull the Cossie down today and seems a good thing. Mahle pistons, AP clutch, plenty of porting in the head. So throwing some new front and rear main seals at it. Some fresh bearings and hopefuly have it all back together and tuned up in the next 3-4 weeks

With that grey area cleared up...I need to think long and hard do I sink money into trying to get my current setup working with E85 and then try the new turbo to see if I cant get 300-320rwkws out of it...or do I just leave it as is and spend that money on a sump and the machining / assembly of my new engine?!?!?! I want to hit 300rwkws out of a std RB20 but it looks like its going to cost too much money trying to find what is limiting the current setup. Inlet piping, exhaust piping, exhaust housing diam??? f**k knows

[ssxRicho]

Insanity: doing the same thing over and over again and expecting different results

[robots]

For experiment purposes why don't you lend some haltech or other map-based plug-in ecu.

You will remove intake restrictions that way. Next step make a temporary 4'' exhaust elbow. Straight down to the ground or something. Nothing fancy.

Start with the setup the theoretically could get the largest power gains. Start with the largest AR on the hotside you have there, maybe even cams, billet wheels, pump E85 blood in there and smash it with 30psi)) It should work. Analysis is as good as the data, right ? )) Just go berserk on it

[tweety bird]

have you looked at ignition systems roy?

some more plug gap might help you in your quest.

[Russman]

problem is my patience and curiosity with trying all this stuff is getting a bit thin and as much as I want to do it I think I need to flog off all my gear and stick with std motors. If they pop then who cares...$600 and soeme spare dosh for some tidy up love and I can be back to having fun with next to no outlay

That's always been my thinking!

What will you enjoy more? Talking about engine internals blah blah or getting the thing on the track!?!

[Roy]

Hey, 25Fanboi....Will I be kicking your ass at PI at end of June?

[Russman]

Hey, 25Fanboi....Will I be kicking your ass at PI at end of June?

Haha. Yeah I put in my entry today. Was hoping to do testing the PIARC weekend before but I'm working so signed up for the alfa day 30/6.

[Roy]

I am doing the no noise day at PI the weekend before. Got some used tyres for $200 so will see how i go

[Russman]

No noise day = PIARC day?

[sav man]

Unless your AFM is maxed out it won't be a restiction. How much timing are you running? on E85 it sould be in the range of 25-28deg.

A circuit car down here made 290rwkw with a stock 20, and one of GCG's internal gated GT3071r on a standard ex manifold with E85.

Might be time to get a nice modern Garrett.