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

[Roy]

This is all too easy, and way too much fun these days.

Just got back from Winton Raceway, only did two sessions so about 10 laps...but at 18psi and 8,000rpm rev limit (shifting around 7,000-7,5000rpm) the engine ran well:)

Do have a problme though, my piping has a boost leak somehwere that meant i wasnt able to continue after the second session:(

[yogi000]

I had to dig up this old post........gotta love it.

This is what was pushed out of my rb20det.....with 2530 and rest to support 200rwkw. It isnt quite what roy has, i wish.

Could someone also tell me how to convert kph to rpm on the graph....i saw a post once explaining the formula.....but i cant find it.

[raz0r$harP.UK]

hey yogi what boost was that on?

[Roy]

I had to dig up this old post........gotta love it.

This is what was pushed out of my rb20det.....with 2530 and rest to support 200rwkw. It isnt quite what roy has, i wish.

Could someone also tell me how to convert kph to rpm on the graph....i saw a post once explaining the formula.....but i cant find it.  

Hey, that looks nice and punchy,

What bosot is it running? Im off to Eastern Creek today so should have a tale to tll tonight:)

Cool, email me at [email protected] and ill send over a spreadsheet, either that or tell me the tyre you are running and brand, as you need th etyre circumference to work it out...its pretty easy to do:)

[Lithius]

Do you mind posting your other modifications Yogi?

[yogi000]

sure no worries

turbo = 2530

booost = spikes to 18 then tapers off to 16psi

ecu = power fc

gtr pump

gtr injectors

cam gears

front mount cooler

blitz ebc

i dont like running that much boost on the road.

i wish i could have full boost by 3500rpm....make it even better.....maybe i'm asking too much

[raz0r$harP.UK]

u mind if i ask who tuned your car... ill be putting in pfc pretty soon looking for a tuner for my 32

[Chris32]

u mind if i ask who tuned your car... ill be putting in pfc pretty soon looking for a tuner for my 32

going by the dyno sheet, Croydon Racing Developments.....

Good power, seems a bit like mine up top, drops boost and power just after 6000, although mine drops of a bit more than that

[yogi000]

croydon have always been good to me, i gave jim the car and it was barely running....thanks to me.

I think he's done a fairly good job.

[Chris32]

yeah looks good

what duty cycle are your injectors reaching?

[yogi000]

highest i've seen it was 69.8% last night.

Would anyone be able to tell me their settings for the injector data option on the fc commander??? Curious to see if any changes have been made to the lag timing of the injectors

[FATGTS-R]

Hi yogi great result. Can you post the boost curve as well?

You mentioned wanting to get full boost at 3500rpm so when is it actually hitting full boost now?

[yogi000]

i'll get that for ya......gotta scan it.

its on full booost @ 4000rpm and about 6-7psi at 3000rpm

[RB power]

hi, so who is making what power?

[Roy]

Looking at that result i say the 2530 has to be one of the best bolt on options with the RB20, perhaps the 2535 will make a bit more power...but who knows for sure.

One thing that seems evident is that a good manifold and a good external wastegate seems to help the things make power. My turbo seems line ball with the 2530 down low but makes a bit more up top...but you have to question the value, the wastegate and manifold alone are worth what the 2530 goes for...then you have to buy the turbo and plenty more in the way of lines and piping:( So is the extra 15-20rwkws worth the expense???? If i want to run 20psi and make the power then its handy but 18psi day to day is enough for the dry

The 2530 seems to be the go, but interesting that boost even falls over at high revs on the RB20:confused:

What brand / size exhaust and cat are you running?

Oh on another note on my old girl, the only drama after 6 x 20min sessions in the wet at Eastern Creek was a tired alternator about 15mins into the last session, where voltage dropped to the point where i got a misfire and steering went heavy. Another alternator in and she is good to go:)

So that just about 120min of spinning around on a wet track with either 12 or 15psi, i cant remember what the low boost setting is...lol i need to get my boost gauge working....and not a drama:)

The catch can is still empty with only a bit of mist on the hose walls

[R31 POWER]

Now I have the 25det box in I'll get mine tuned.I'm so hanging out to see what it does.

[yogi000]

What brand / size exhaust and cat are you running?

Its a 3inch full peice front/dump, 3 inch catco cheapo....3 inch trust renonator.....then opens to a 3.5 inch till the rear muffler and 5 inch tip (looks dicky)

[DCIEVE]

Looking at the latest dyno sheet for mine, I have approx 600rpm more lag than the 2530 (running 1bar) but power doesnt drop of untill around 7000rpm. Thats with std manifold modded to accept the external gate. Waiting on a stiffer gate spring so we can wind up the boost and give it a proper tune (hopefully the stiffer spring and tuning will reduce the lag slightly).

[R31 POWER]

Yer baby I have the 31 booked in for the 31st to get tuned.

[DCIEVE]

Who is doing your tune?

Finally got a stiffer gate spring, retune with more boost this week