Jump to content
SAU Community

Recommended Posts

i just thought i would start a thread for people to throw up their dyno sheet and a list of major mods so people can compare and enquire what make a good improvement and what doesnt and to see how laggy certain turbos actually do make the ol rb engines....

i have :

lt12 plug in microtech ecu

gt28440hp bb turbo (t25 flange)

600x300x76 modified hybrid cooler

malipassi reg

480cc injectors

bosch 909 pump

3 inch exhaust with custom dump pipe and no cat

adjustable cam gears

profec b spec 1 boost controller

im especially keen to see guys with rb20 engines and turbos like 2530,2540 etc

my graph can be seen here.... http://www.skylinesaustralia.com/forums/at...achmentid=21307

low boost (8 psi) hi boost (18 psi) cheers Jon

Link to comment
https://www.sau.com.au/forums/topic/49209-post-up-your-best-dyno-graph/
Share on other sites

  • Replies 223
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Posted Images

My R33 is still pretty stock but i have dyno figures for it.

it has-

- a front mount intercooler kit by Hybrid.

- a custom made double dump pipe by Drift King.

- a turbosmart boost controller switchable hi/low boost.

- 3 inch exhaust.

it makes max power at 6400rpm at 9 p.s.i.

http://www.skylinesaustralia.com/photopost.../cat/500/page/1

http://www.skylinesaustralia.com/photopost.../cat/500/page/1

heavily modified (engine just been refresh when the turbo and cam shaft fitted)

Apexi RX6 high-mount turbo

Apexi exhaust manifold

Apexi external wasgate

Apexi cam shaft

Apexi valve spring

Apexi fuel pump

Apexi injector

metal head gaskit

ARC front mount intercooler

Full trust exhaust system

Blitz dual sbc boost control

z32 air flow meter

Just Dyno the car at Dyno source and it made 392hp at rear wheels in 1.3bar(pump fuel)

should make 430hp at rear wheel in 1.4bar with race fuel

on the dyno graph still show car run very rich at 392hp at rear wheel in 1.3bar.

This is my current set up, im pushing my injectors a little though, need bigger injectors

lt12 plug in microtech ecu

gt2535 turbo

600x300x76 hybrid cooler

bosch motorsports fuel pump

3 inch exhaust with custom dump pipe and no cat

Bleed valve boost controller

215rwkw on 18psi

Dyno paper i will post as soon as i can get it scanned

I saw merli's 600.1 rwkw graph...but he claims to have "lost" the pic now.

here is mine from the SAU Dyno Day today :(

datto_dyno.jpg

Apparently it was running too rich, so we should be able to get the extra .3 rwkw with some tuning :D

I'd love to know Paul's secret to 450HP. I'm nearly there - with similar turbo (larger rear housing). Dude did you have an exhaust on your car when you got the 450 ?

This is 23 PSI - ( get no difference in power from 21 PSI upwards - tried 25 PSI today and 2 rwkw less - same dyno)

skylyn_dyno_2.jpg

GT30 is pretty ambiguous as to the size of the turbo, the GT30 family is huge. Then again, it could have a '30 rear, and a larger family compressor. Such mystery!

ps. 450 hp is 335kw, different dyno could accomodate such variation.

Edit: You can't compare the A/R directly between Garrett vs HKS - different designs where the HKS units have a smaller radius ®, so the area (A) could be the same on a larger HKS vs smaller Garrett.

Edit2: You would probably find that you can drop the size of your turbine housing B-Man and not lose horsepower.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Have a look at that (shitty) pic I posted. You can see AN -4 braided line coming to a -4 to 1/8 BSPT adapter, into a 1/8 BSPT T piece. The Haltech pressure sender is screwed into the long arm of the sender and factory sender (pre your pic) into the T side. You can also see the cable tie holding the whole contraption in place. Is it better than mounting the sender direct to your engine fitting......yes because it removes that vibration as the engine revs out 50 times every lap and that factory sender is pretty big. Is it necessary for you......well I've got no idea, I just don't like something important failing twice so over-engineer it to the moon!
    • Yup. You can get creative and make a sort of "bracket" with cable ties. Put 2 around the sender with a third passing underneath them strapped down against the sender. Then that third one is able to be passed through some hole at right angles to the orientation of the sender. Or some variation on the theme. Yes.... ummm, with caveats? I mean, the sender is BSP and you would likely have AN stuff on the hose, so yes, there would be the adapter you mention. But the block end will either be 1/8 NPT if that thread is still OK in there, or you can drill and tap it out to 1/4 BSP or NPT and use appropriate adapter there. As it stands, your mention of 1/8 BSPT male seems... wrong for the 1/8 NPT female it has to go into. The hose will be better, because even with the bush, the mass of the sender will be "hanging" off a hard threaded connection and will add some stress/strain to that. It might fail in the future. The hose eliminates almost all such risk - but adds in several more threaded connections to leak from! It really should be tapered, but it looks very long in that photo with no taper visible. If you have it in hand you should be able to see if it tapered or not. There technically is no possibility of a mechanical seal with a parallel male in a parallel female, so it is hard to believe that it is parallel male, but weirder things have happened. Maybe it's meant to seat on some surface when screwed in on the original installation? Anyway, at that thread size, parallel in parallel, with tape and goop, will seal just fine.
    • How do you propose I cable tie this: To something securely? Is it really just a case of finding a couple of holes and ziptying it there so it never goes flying or starts dangling around, more or less? Then run a 1/8 BSP Female to [hose adapter of choice?/AN?] and then the opposing fitting at the bush-into-oil-block end? being the hose-into-realistically likely a 1/8 BSPT male) Is this going to provide any real benefit over using a stainless/steel 1/4 to 1/8 BSPT reducing bush? I am making the assumption the OEM sender is BSPT not BSPP/BSP
    • I fashioned a ramp out of a couple of pieces of 140x35 lumber, to get the bumper up slightly, and then one of these is what I use
    • I wouldn't worry about dissimilar metal corrosion, should you just buy/make a steel replacement. There will be thread tape and sealant compound between the metals. The few little spots where they touch each other will be deep inside the joint, unable to get wet. And the alloy block is much much larger than a small steel fitting, so there is plenty of "sacrificial" capacity there. Any bush you put in there will be dissimilar anyway. Either steel or brass. Maybe stainless. All of them are different to the other parts in the chain. But what I said above still applies.
×
×
  • Create New...