Top RB20 Club... do you have over 260rwkw?

[legend01]

Turbine

I not sure of what the rev's were at 150klms though full boost was reached by 6000rpm and max power where it carried through to rev cut at 7700rpm so id have to say it would be around the mid to high 6grand mark

Roy

Thanks ,Dont wanna aim to high just breaking into the 11 second bracket would be a feat in itself but it would be good wouldnt it an 11.5

jnr32r

Tyres i run are mickey tompson ET street 26x10.50 I drive there with them on, there dot approved

Cheers Peter

Edited March 24, 2006 by legend01

[RS500]

Hi Guys latest update

New exhaust is on and retuned made a little more power but what its got now is how it stays thinks its past the limits of the standard plenum. Heres lastest dyno done this afternoon.

awesome power there Peter, congrats.

i noticed your Intake Temp is pretty high.

[legend01]

Thank You

Yes it was but Ive put alot of that down to 2 hours on the dyno fist couple runs it was around the 37deg mark then started to climb . I want to do some testing on that but at the moment just enjoy the car the way it is for the moment

Cheers Peter

[PRO_32]

Hey pete i got the same turbo external 3040r (.63) however no cams but a custom plenum and i made 270 at 22psi.

i thought the bigger ex housing would have been laggier than that mine comes on about 5100 did the cams do much to bring it on earlier?

cheers

Andrew

[legend01]

I would say yes as they allow more air through but the porting and polish of the head would help that along as well .Have you posted a dyno graph would like to check it out, mines abit of a weird curve

Cheers Peter

Edited March 27, 2006 by legend01

[Cubes]

The idea behind the bigger exh. housing is to allow less back pressure.

Less backpressure = higher volumetric efficiency at high rpm.

In otherwords, less backpressure = better cylinder filling = less boost required to make the same power.

[PRO_32]

no havent posted a graph didnt even get a printout.. pretty much jus a ski jump straight up and holds the whole way to rev limit 7800.

We were gonna keep turning up boost to see how far the stock 20 woul go but ran outtta fuel.

To be honest it's a bit to laggy for me at first i didnt mind but it makes it hard for me to do what i need it to id love it to come on 1000 earlier. thats why i asked bout the cams .

My theory was cams and race fuel with a really aggresive ignition advance might bring it down to the 4000 mark.

[legend01]

Hmmm, well since you've got the smaller .63 exhaust housing,cams and maybe a bit of porting may help but to get down to 4000rpm is a bit of an ask I think as it's a big turbo on a little RB20 . still stranger things have happened 12 months ago our power level was considered unrealistic but there's a few rb20's there now .

Did your's from memoey flatten out like mine does when it reached max power ? Would still like to resolve that issue a bit latter on though

Cheers Peter

[PRO_32]

nah it jus pretty much kept pulling all the way up.

Do you find that it comes of boost through gear changes mainly 2nd to third.

[Drift_Mulisha]

Can adding cams do much to bring the boost threshold down? at the moment i get full boost at 4700rpm (garret GT25R 0.64) and would be awesome to be able to bring it down to around 4200rpm. is that realistic? I already have the cams, they are HKS 264's with 9mm lift but i havent installed them yet as i wanted to see what is was like without them first. Also if i install these cams do i have to upgrade the valvesprings if i dont rev the engine any harder? current rev limit is 7500rpm & have had no issues with valve bounce so far.

Cheers.

[Roy]

Can adding cams do much to bring the boost threshold down? at the moment i get full boost at 4700rpm (garret GT25R 0.64) and would be awesome to be able to bring it down to around 4200rpm. is that realistic? I already have the cams, they are HKS 264's with 9mm lift but i havent installed them yet as i wanted to see what is was like without them first. Also if i install these cams do i have to upgrade the valvesprings if i dont rev the engine any harder? current rev limit is 7500rpm & have had no issues with valve bounce so far.

Cheers.

I would be very doubtful that cams alone will give you that sort of change.

I would assume a change in exhaust housing whould do much more...and i saw about a 300-400rpm improvement going to a much smaller exhaust housing.

In all seriousness, if you are not going to use the cams then PM me...if i have the coin i would be very interested in them as im wanting some cams so that i can run a bit more boost.

Otherwise, give them a try and see how they go...but even with a good tune i would say you will be lucky to brign it down 300rpm, thats provided there isnt anything wrong with the current tune

[Drift_Mulisha]

Cheers for your advice, i think ill try installing them & see what happens. ive seen various results with guys using cams & cam gears to dial in a fatter midrange or top end by advancing/retarding the cam gears. hopefully it will bring it down slightly, even 300rpm would be great as where the power comes in now it is quite hard to drive in a drift enviroment & you have to be fairly ruthless with it wich has resulted in several broken gearboxes. Current tune is good, definately not the problem & i'm happy with the power output (258rwkw) just i bit more responce would be nice

Edited April 3, 2006 by Drift_Mulisha

[1400r]

speaking to my new work mate the other day I found out that his 32 made it's 320rwkw on its low boost setting 1.6 bar

when they wound it up to 1.8 it just wheel span once it came on to boost

mmmmmm cant wait for my ride in it.

His dog box is still at ppg after break in the second night he had it.

mmmmm 2.3lt + T88 laggy city has a new king 6,000rpm boost come on

[Turbine]

Thanks Legend, I was expecting you to say around 5000 to 6000 RPM.

I've updated my gallery on the race car. You can check it out here

http://www.skylinesaustralia.com/photopost...00/ppuser/19114

Cheers,

Glenn

[legend01]

Hi Guys

Ran the car at wsid on wednesday night but was having trouble hooking up . Was running M/T et street radials and was still having traction issues !st ,2nd and a little in 3rd still. Ran a 12.4,12.3 and a 12.2 and on the last run since times were geting better really put some heat into the tyre's but low and behold broke a drive axle on the line .Mph was up now running 116mph but 60ft times were woful couldnt get better than a 2.000 so give it a couple weeks and have another go at that elusive 11 second pass

Cheers Peter

[RB power]

hey guys i ran a 13.3 yesterday lol @ 103mph and 60ft was 2.000

[Roy]

Back from the dead. My thing finally got to turn its wheels in anger again.

It hadnt been driven for over a year, and i didnt get a chance to put the oil cooler back on, but changed the oil, drove 200kms, changed the oil and filter again and went racing. 3 days of abuse and plenty of 8 something rev limit and Sunday afternoon at 1.5bar at Sandown and the thing lived to tell the tale.

No blow by, no pinging, no problem it seems. Only did one flat out lap at a time because was worried about temps, but have to kind of laugh that it loved the 1.5bar....

Going to change the oil this weekend and send it off to Castrol to see if the sample has coolant/particles etc in it.

[RS500]

Back from the dead. My thing finally got to turn its wheels in anger again.

It hadnt been driven for over a year, and i didnt get a chance to put the oil cooler back on, but changed the oil, drove 200kms, changed the oil and filter again and went racing. 3 days of abuse and plenty of 8 something rev limit and Sunday afternoon at 1.5bar at Sandown and the thing lived to tell the tale.

No blow by, no pinging, no problem it seems. Only did one flat out lap at a time because was worried about temps, but have to kind of laugh that it loved the 1.5bar....

Going to change the oil this weekend and send it off to Castrol to see if the sample has coolant/particles etc in it.

the silver bullet lives on after hibernation ;-)

good stuff dude, good to see the car is back in action again.

i'm dying to see it in anger.

[silver gts-t]

Done!

240rwkw @ 20psi

details and sheet soon

[kwazza11]

Who ever said the rb20 couldnt make the numbers eh? if i remeber correctly your running an f-con right silver? did you get the navigator with it?

i recently had my car tuned aswell. banged out 220rwkw@14psi before we ran into missfire issues and couldnt push anymore boost into it.. splitfires here we come!