Sliding Performance Highflow For Rb25det

[mickr33]

Also not wanting to start up a debate about injectors but the standard ones

were deffinately used for the tune. I straight away said mate this dyno must

be a very happy dyno. But thinking back these guys hade a dyno day about 2 years

ago where the car was run and made 160rwkw. At the time the car was also run on

two different dyno's in a 4-5 month period. The difference between all three was 1kw.

Also the owner said he thought they were very good numbers and added that he has

the dyno regularly calibrated by dyno dynamics. The Nismo fuel reg was used and

only a bit more than standard pressure was run. He said he would deffinately

not run rediculous pressure through any cars that come through the workshop.

I did have the S15 injectors ready for the tune though, just in case.

[SECURITY]

ill be using standard injectors for my tune too, with just an safc2.. std afm.

i'll be maxing out the afm and injectors within safe limits till i get something better.

[mickr33]

ill be using standard injectors for my tune too, with just an safc2.. std afm.

i'll be maxing out the afm and injectors within safe limits till i get something better.

Joe. Just to let you know that my standard air flow meter was maxing out at 195kw

but only in cooler weather (cold morings etc). But every car being different you may

get more.

[SECURITY]

ahh.. i might just get a z32 then.

thanks mate.

EDIT: actually, im going to tune it as is just to see for myself what the max is for the std items.

[SECURITY]

got my turbo today. i ended up installing it at night with my house's sensor lights, a LED light and a mate always walking around to get the sensors on. it took me around 3hrs, it was farking dark and i smoke alot.

the order i did it was: (after fitting actuator and oil drain pipe).

-line up the dump pipe and put the nuts and bolts in but dont fully tighten

-sit the oil drain pipe into its position and nip it up but make sure you've got a little bit of movement

-fit the water line that comes from the engine side of the turbo

-bolt the turbo into place onto the manifold, do all of the bolts up tightly before starting on the oil feed line.

-line up the oil feed line and the water line on the other side and tighten

-go back and double check everythings tight.

-make sure you do an oil change + top up your coolant before starting your car.

-then wack all your piping back on.

when i was turmed the car on for the first time i unplugged my CAS, let the motor kick over to build up oil pressure then once it did i plugged it back in and started it then let it run for 10mins as Aaron instructed.

look out for leaks etc so be ready to turn the car off, best to disable the turbo timer for the first few starts.

p.s. its 4am, im sure ive missed something but ill edit when i get some sleep.

[SECURITY]

the important part.. the pics:

i was lucky enough to score an 0b6 vg30 exhaust housing which is the largest housing they come in. looking at the difference in wheel sizes, it makes my pants all tingly.

the car sounds a bit meaner. i havent boosted it at all yet because my little ball bearing inside my turbotech boost controller disappeared when i accidently opened it all the way when trying to turn down the boost.

but i still took it for a drive and it feels good even though i couldnt boost it .

i thought the drilling to 6mm would effect oil pressure, but it didnt at all. all temps are fine too.

[CEF11E]

Nice work champ. you are dedicated to do all that at 4am

[lingeringsoul]

now I know who to kiss up to when it comes to instlling this

[SECURITY]

i finished up at around 1am, took a nice 1hr long shower then went for a drive.

James, we'll make a day of it mate

you bring the booz

[lingeringsoul]

keep us updated with the tune with the SAFC2, I'm really interested in seeing how that goes.

[Trav33]

Nice work.

Notice much lag with the high-flow?

What boost will you run? (when you find ur ball bearing!!)

[SECURITY]

im going to run around 7-8psi (well, the lowst i can), when i get a new afm ill go get it tuned.

lag doesnt seem too bad, but without a boost controller i dont want to give it at all to find out.

[paulr33]

do you plan to turn the car off after a few hot runs to see if the bearings fail?

thats a serious question

[SECURITY]

i hadnt thought about it Paul but i might actually do that, last thing i want is bearing failure while im at the drags or on a track. but im sure the turbo will be up to it, it hasnt shown any sign of weakness.

[mickr33]

Nice work.

Notice much lag with the high-flow?

What boost will you run? (when you find ur ball bearing!!)

I found mine very noticable as you would expect. But this was greatly improved

once the car was tuned.

[BAMR33]

I fitted mine myself; you really need another person there when you're installing just to help out. Mine performs great with the PFC now in. Boost hits hard, no real traction to speak of through first second and occasionally third at only 8psi.

Double check your water lines on start up, I had trouble at first getting mine to seal (seeping out coolant). They need to be just that little bit tighter than you think they should be.

Boost response has reduced a bit at driving speed (60km/h 4th gear), but definitely worth the sacrifice.

Also check the wastegate before installing, I noticed mine was a little loose when it first arrived, didn't think anything of it. Now once installed it rattles and it’s driving me crazy. It'll only require taking the dump off and putting a circlip in, but I’m lazy and that'll take effort.

[andylaurel]

im thinking about getting one for my Rb25de as my RB20 turbine is shagged after many minutes of zero oil pressure driving. (on old blown RB20)

has anyone got one of the Ball bearing garret items that sliding stocks?

[SECURITY]

i took the car out for a bit of a hammer last night, 10psi is the lowest my boost controller will let me boost.

the car feels pretty good, boost comes in nice and strong, and because im running so rich from 2500rpm (when stocky would start spooling), the turbo kicks in at around 3700rpm.

im pretty sure with a good tune it will kick in a bit earlier.

[andylaurel]

the map isnt closed loop, your fuel map is determined by the amount of air passing though your AFM.

your larger turbine will come in later and suck more air later, so until it comes on boost, the ECU will add the correct amount amount of fuel for manifold vacuum.

when it does come on boost, it will see more air going through the AFM and compensate with more fuel

[Lazy-Bastard]

I just got a chance to give mine a decent run last night.

I installed the turbo last week but still had the stock injectors in, so was using the actuator only to control boost (ie. ~10psi), so it was pretty slow and boring as the wastegate would start to open as soon as you made + pressure, then slowly built to .6 bar.

Installed some 555cc injectors last night and put the turbotech BC back on set at 1.1bar.

I am getting 1bar at ~3200rpm and full boost by 3500. First and second gear are a bit of a joke if you are up it and this is still running the PFC tune from my old hi-flow (which wasn't much bigger than stock, just with steel wheels).

It feels pretty fat fuel wise so hopefully a re-tune will have the turbo spooling even earlier