Jump to content
SAU Community

Recommended Posts

Hi,

so now im trying to make my dream car come true

and i want something super fast lets say 400-450 HP this is all on RB25DET

so up until now i have these parts not yet installed

1- Greedy style manifold + 80mm Throtel body + Fuel Rail

2- Aftermarket Turbo 50 in size

3- NGK Iridium BCPR6

4- RB25DET Gear Box

5- r32 diff + Cusco adjustable Toe control rods +aftermarket full adj suspension

6- Blue pin OEM ECU (r33)

7- 3" Intercooler + HKS SSQV Blowoff

8- Tomi Fuel regulaitor + Oil Catch can + Comtic Headgasket 1.3 - 87mm Bor + AEM 320L PH Fuel pump + Oil dumper

9 - Apexi SFAC 2 + innovate Wideband + Turbo boost controler digital

so what i would like to know what am i missing, what are the things that i purched wrong and it will not have any effect

ah and 1 more thing does the nismo gauge cluster spedo 300 fits the cefiro a 31 ???

i appreciate all the help before i blow my Engine ^_^

Thanks again

Loy

Link to comment
https://www.sau.com.au/forums/topic/463148-rb25det-best-performance/
Share on other sites

If money is tight sell the following to buy things you really need:

Greddy style manifold, 80mm throttle body, fuel rail, unknown turbo, OEM ecu, Tomei fuel regulator and all of 9

What you need as a minimum:

Link G4 computer + mac valve for boost control OR PFC + Z32 AFM and boost controller

Decent turbo with (if necessary) wastegate mounted on stock manifold.

Assuming you are running on petrol some 550 side mount injectors

3in turbo back exhaust

Probably a set of new OEM or Splitfire coils.

Good intercooler (you don't say what kind you have)

Good tune

  • Like 1

NOS... two of the big ones.

But seriously, your tune must be good. Try an aftermarket ECU

Thanks Mate im trying as hard as i can to get good numbers

You are missing.

Decent turbo

Proper engine management.

I guess so

You need a decent throttel body...

But yeah, Turbo, ECU, Exhaust.

Maybe E85 if it's available?

It's hard to find one here :(

If money is tight sell the following to buy things you really need:

Greddy style manifold, 80mm throttle body, fuel rail, unknown turbo, OEM ecu, Tomei fuel regulator and all of 9

What you need as a minimum:

Link G4 computer + mac valve for boost control OR PFC + Z32 AFM and boost controller

Link G4 is really costly + no good tuners around

Decent turbo with (if necessary) wastegate mounted on stock manifold.

​any brand recommendation ?

Assuming you are running on petrol some 550 side mount injectors

Yep Nismo 555cc

3in turbo back exhaust

can i stick with 2.5" (to keep it quit as possible)

Probably a set of new OEM or Splitfire coils.

I'm trying to get those

Good intercooler (you don't say what kind you have)

aw sorry the intercooler is Apexi

Good tune

Hard to find one around

  • Like 1

Got more details on the Turbo 50?

I hope this will help

  • Intake Inlet/ Outlet: 4.000"/ 2.625"
  • Compressor:
  • Trim: 60
  • A/R: .70
  • Inducer: 60.30
  • Exducer: 78.00

    Turbine:

  • Trim: 64
  • A/R: .50
  • Inducer: 67.00
  • Exducer: 58.80
  • 2 weeks later...

ok guys after a few days of searching i couldn't come up with a clear answer for this

i wanted to upgrade my engine injectors so i found some good names

like 550cc nismo - 750 denso - 650 bosh aside for that

what is the right one to chose for my application i mean to have a sweet 400+ without risking

oh and i've changed my ECU and i bought Link G4+ (GTRLink) ....

I have a S2 RB25DET. It makes +-340hp on 0.9bar and just over 400hp on 1.2-1.3 bar boost. Supporting mods are the following:

Garrett GT3071R 0.82AR mounted on stock manifold with external Tial 38mm wastegate

76mm exhaust with 2 Magnaflow silencers

600 x 300 x 76 Autobahn 88 intercooler

1000cc DW sidefeed fuel injectors fed by a Walbro fuel pump, stock FPR

Stock intake manifold with front-facing standard throttle body

Greddy Type RZ blow-off valve

Mishimoto R33 radiator, Nismo thermostat and SPAL electric fan

Rear head oil drain, winged and baffled sump

Link G4 Xtreme management

AEM water & methanol injection

I forgot to add that it makes full boost by 3100rpm in 4th and 5th, about 3800rpm in 1st gear.

Edited by Skylinefreak1

I have a S2 RB25DET. It makes +-340hp on 0.9bar and just over 400hp on 1.2-1.3 bar boost. Supporting mods are the following:

Garrett GT3071R 0.82AR mounted on stock manifold with external Tial 38mm wastegate

76mm exhaust with 2 Magnaflow silencers

600 x 300 x 76 Autobahn 88 intercooler

1000cc DW sidefeed fuel injectors fed by a Walbro fuel pump, stock FPR

Stock intake manifold with front-facing standard throttle body

Greddy Type RZ blow-off valve

Mishimoto R33 radiator, Nismo thermostat and SPAL electric fan

Rear head oil drain, winged and baffled sump

Link G4 Xtreme management

AEM water & methanol injection

I forgot to add that it makes full boost by 3100rpm in 4th and 5th, about 3800rpm in 1st gear.

Thats a cool setup but again 1000cc ....

i just bought the 550cc from nismo and i will try to hit this number and i hope i can

for the turbo money is tight to buy one of those Garrett GT3071R monsters any other brands recommendations ?

i will not replace the intake manifold hmmm lets see what will happen

but anyway thanks mate

Get 800cc power enterprise dropin injectors.

Adaptronic plug in Ecu would make tuning alot easier. It supports 3 bar map sensor so no AFM

ATR43SAT Ceramic Ball bearing Rb Bolton turbo. That makes 20psi by 3550RPM 4th, maxed at 424rwhp internally gated on P98 fuel.

Ok, this is the important bit, or you won't make my power:

4 inches induction pipe

PWR 600x300x81mm cooler

3.5 inches turbo back exhaust.

a Good tune

Get 800cc power enterprise dropin injectors.

Adaptronic plug in Ecu would make tuning alot easier. It supports 3 bar map sensor so no AFM

ATR43SAT Ceramic Ball bearing Rb Bolton turbo. That makes 20psi by 3550RPM 4th, maxed at 424rwhp internally gated on P98 fuel.

Ok, this is the important bit, or you won't make my power:

4 inches induction pipe

PWR 600x300x81mm cooler

3.5 inches turbo back exhaust.

a Good tune

Price on atr43sat cbb if u don't mind telling?

Power Enterprise injectors are absolute junk Tao!

At that rate you might as well get Five O junk too lol.

Better off with Nismo 740cc injectors and be naughty and set the base pressure at 3.5 bar.

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

    • Next on the to-do list was an oil and filter change. Nothing exciting to add here except the oil filter is in a really stupid place (facing the engine mount/subframe/steering rack). GReddy do a relocation kit which puts it towards the gearbox, I would have preferred towards the front but there's obviously a lot more stuff there. Something I'll have to look at for the next service perhaps. First time using Valvoline oil, although I can't see it being any different to most other brands Nice... The oil filter location... At least the subframe wont rust any time soon I picked up a genuine fuel filter, this is part of the fuel pump assembly inside the fuel tank. Access can be found underneath the rear seat, you'll see this triangular cover Remove the 3x plastic 10mm nuts and lift the cover up, pushing the rubber grommet through The yellow fuel line clips push out in opposite directions, remove these completely. The two moulded fuel lines can now pull upwards to disconnect, along with the wire electrical plug. There's 8x 8mm bolts that secure the black retaining ring. The fuel pump assembly is now ready to lift out. Be mindful of the fuel hose on the side, the hose clamp on mine was catching the hose preventing it from lifting up The fuel pump/filter has an upper and lower section held on by 4 pressure clips. These did take a little bit of force, it sounded like the plastic tabs were going to break but they didn't (don't worry!) The lower section helps mount the fuel pump, there's a circular rubber gasket/grommet/seal thing on the bottom where the sock is. Undo the hose clip on the short fuel hose on the side to disconnect it from the 3 way distribution pipe to be able to lift the upper half away. Don't forget to unplug the fuel pump too! There's a few rubber O rings that will need transferring to the new filter housing, I show these in the video at the bottom of this write up. Reassembly is the reverse Here's a photo of the new filter installed, you'll be able to see where the tabs are more clearing against the yellow OEM plastic Once the assembly is re-installed, I turned the engine over a few times to help build up fuel pressure. I did panic when the car stopped turning over but I could hear the fuel pump making a noise. It eventually started and has been fine since. Found my 'lucky' coin underneath the rear seat too The Youtube video can be seen here: https://www.youtube.com/watch?v=uLJ65pmQt44&t=6s
    • It was picked up on the MOT/Inspection that the offside front wheel bearing had excessive play along with the ball joint. It made sense to do both sides so I sourced a pair of spare IS200 hubs to do the swap. Unfortunately I don't have any photos of the strip down but here's a quick run down. On the back of the hub is a large circular dust cover, using a flat head screw driver and a mallet I prised it off. Underneath will reveal a 32mm hub nut (impact gun recommended). With the hub nut removed the ABS ring can be removed (I ended up using a magnetic pick up tool to help). Next up is to remove the stub axle, this was a little trickier due to limited tools. I tried a 3 leg puller but the gap between the hub and stub axle wasn't enough for the legs to get in and under. Next option was a lump hammer and someone pulling the stub axle at the same time. After a few heavy hits it released. The lower bearing race had seized itself onto the stub axle, which was fine because I was replacing them anyway. With the upper bearing race removed and the grease cleaned off they looked like this The left one looked pristine inside but gave us the most trouble. The right one had some surface rust but came apart in a single hit, figure that out?! I got a local garage to press the new wheel bearings in, reassemble was the opposite and didn't take long at all. Removing the hub itself was simple. Starting with removing the brake caliper, 2x 14mm bolts for the caliper slider and 2x 19mm? for the carrier > hub bolts. I used a cable tie to secure the caliper to the upper arm so it was out of the way, there's a 10mm bolt securing the ABS sensor on. With the brake disc removed from the hub next are the three castle nuts for the upper and lower ball joints and track rod end. Two of these had their own R clip and one split pin. A few hits with the hammer and they're released (I left the castle nuts on by a couple of turns), the track rod ends gave me the most grief and I may have nipped the boots (oops). Fitting is the reversal and is very quick and easy to do. The lower ball joints are held onto the hub by 2x 17mm bolts. The castle nut did increase in socket size to 22mm from memory (this may vary from supplier) The two front tyres weren't in great condition, so I had those replaced with some budget tyres for the time being. I'll be replacing the wheels and tyres in the future, this was to get me on the road without the worry of the police hassling me.
    • Yep, the closest base tune available was for the GTT, I went with that and made all the logical changes I could find to convert it to Naturally Aspirated. It will rev fine in Neutral to redline but it will be cutting nearly 50% fuel the whole way.  If I let it tune the fuel map to start with that much less fuel it wont run right and has a hard time applying corrections.  These 50% cuts are with a fuel map already about half of what the GTT tune had.  I was having a whole lot of bogging when applying any throttle but seem to have fixed that for no load situations with very aggressive transient throttle settings. I made the corrections to my injectors with data I found for them online, FBCJC100 flowing 306cc.  I'll have to look to see if I can find the Cam section. I have the Bosch 4.9 from Haltech. My manifold pressure when watching it live is always in -5.9 psi/inHg
    • Hi My Tokico BM50 Brake master cylinder has a leak from the hole between the two outlets (M10x1) for brake pipes, I have attached a photo. Can anyone tell me what that hole is and what has failed to allow brake fluid to escape from it, I have looked on line and asked questions on UK forums but can not find the answer, if anyone can enlighten me I would be most grateful.
    • It will be a software setting. I don't believe many on here ever used AEM. And they're now a discontinued product,that's really hard to find any easy answers on. If it were Link or Haltech, someone would be able to just send you a ECU file though.
×
×
  • Create New...