Jump to content
SAU Community

Recommended Posts

I've decided to replace all the bolt on bits first, 3" mandrel bent exhaust from the turbo back + high flow cat, then intercooler and turbo (bleed valve). Bigger fuel pump and pressure regulator to increase potential of stock injectors.

Next stage would be a Wolf3Dv4, EBC and bigger injectors when it comes time to run higher boost.

Still undecided about the turbo, but I'm leaning towards a GT25 or HKS2530 at the moment, especially after reading bbenny's posts. Would a stock turbo modified for high flow be cheaper and just as suitable?

Also, at what point would I expect to replace the AFM, and what would you guys suggest for a replacement?

Thanks for all your input so far guys, feeling more confident that I'm headed in the right direction.

Also, I haven't really considered an rb26 upgrade, I'd simply save a little extra and buy a GTR ;-)

  • 5 months later...

Ok the 2530 turbo. Is it an intrenal wastegate or external setp. I am thinking of upgrading my turbo and at first I was looking to get a Trust TD06. I know that this needs an external wastegate so it could be quite costly and probably(?) a bit laggy. Compared to the TD06, I think that the 2530 sounds like a steal at the prices mentioned in this thread. Which turbo would you guys recomend(it does not have to be one of these two either I am open to suggestion). I am after a fast street car (its an RB20 skyline wrapped in a silvia body hehe) with aprox 250 rwk.

Thanks

Hi Strange, this is what we do for 400 bhp (230/240 rwkw)...........

* Power FC with Boost Control Kit & Commander

* Split dump with mandrel 3.5" exhaust & hi flow cat

* GCG ball bearing hi flow RB25 DET turbo

* Tomei 256/260 Poncams

* Z32 AFM

* Standard GTR or Z32TT in tank fuel pump

* Pipercross panel filter in the standard airbox

* But upgrade the ambient air feed

* Standard R33/34 GTR intercooler

* 63 mm pipework from the turbo to the intercooler

* 75 mm pipework from the intercooler to the throttle body

* OS Giken twin plate clutch

* Electric fan (remove the standard fan)

More importantly, what we don't do...

^ Standard internals are fine

^ Standard compression ratio is fine ie; don't need a thick head gasket

^ Standard injectors are OK for this power level, for a bit of security an adjustable fuel pressure regulator (we use Nismo) and stretch the standard injectors 10% which is my limit

^ Standard inlet manifold is fine

^ Standard coils are fine

^ Standard exhaust manifold is fine

^ Don't need an adjustable exhaust camshaft pulley, the Tomei Poncams are timed perfectly out of the box

For 250 rwkw we find the standard injectors won't stretch, so we use 550 cc and then we don't need the adjustable fuel pressure regulator. The GTR/Z32 pump is at its limit at 250 rwkw on some cars, so you may find an upgrade there is necessary, we go straight to Bosch 044 in those cases.

Hope that helps

We made 247rwkw with a standard engine from an rb20.

The mods it had were:

.64 T04e

Turbo smart 45mm External Gate

Apexi GTR front mount

fuel Tronics Chip

Bosch Fuel Pump

3.5inch exhaust

Adjustable fuel pressure reg

and a Turbo smart boost controller. It made this power on 21psi. It had full boost at round 5k and rev'd out to 8k Sometimes even more. The car also ran a 11.8 @ 116mph.

The new owner of this car now re-sides in Newcastle.

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

    • Join SAU NSW for a flame-grilled feed & flame-spitting cruise! Sunday 17th August 2025 3:30PM Meeting Archies Flame Grille Sylvania Waters 4:45PM Cruise Departure 5:15PM Arrival at Cape Solander Kurnell Meet Location: Archies Flame Grille Final Destination: Cape Solander Kurnell *Disclaimer* There will be a lead and follow car so no one should get lost. If you would like to attend or bring others along please put your name down and a +1 as numbers will be needed prior! This is NOT a race and we will all be adhering to all road rules. If this is what you want please come to one of our many track days. This is an official SAU:NSW event and will be run under a CAMS permit. One of the things that really sets our club apart is our commitment to being true enthusiasts. When on normal roads we strive to maintain good relations with the authorities as well as the public in general. When attending one of Skylines Australia NSW events please try to: • Be aware of surrounding environment and act accordingly. • Drive courteously on the state’s roads as a true enthusiast should. • Understand how important it is to maintain the good name of SAU NSW and thus, treat others accordingly. • Any misbehavior will not be tolerated and you will be asked to leave.
    • Yeah good luck out there! Will be good to see a mighty GTST going harder than the GTRs
    • i will be there 😁
    • Hello!  i just finished manual swaping my r34 skyline with a r33 rb20de box(RB71C)box  When the car is running it squeaks crazy loud and it was smoking from the gearbox area. The gearbox is fine it was tested. The clutch slave cylinder seems like it doesn't fully releases the clutch. I want to ask if this noise is from the throw out bearing or could it be the clutch assembly or disk att.xFliq87Gzw6kImKBVqDebXkj0fBqymk0JaYeP3_3SlM.mp4
    • A few small updates since the previous post and lessons. I decided to do a little interior light upgrade on the 110. I quite like the iilumo items, even if they're a bit of a premium over other brands. You'll also note the Stedi Fogs, that will go into the S15 fog lights as I needed to match the bulbs since I got the new ones earlier. I hope they fit as the body is quite a bit longer than your normal bulb.  Annoyingly, I managed to trip the fuse, which normally wouldn't be an issue until I located the fuse. I can't say I've ever come across this. I had lucked out that someone nearby had a spare, but oddly enough Toyota dealerships seem to keep this in stock. I ordered some to keep in my stash and as luck would have it, someone else nearby tripped the same fuse so I passed on the favour.  I also did a little service on the 110 ahead of some additional work coming up. It's been annoying that Goleby's stopped carrying this particular HKS filter for the 110, so now I need to keep them on order from Japan. I also took the opportunity to install a bash plate and number plate riser. The plate riser is such a cheap but nice fix to help really tidy up the car. I'm tempted to now also replace my headlights, on this car. Both items were from Project Aero.    I also needed to replace the rear tyres on the 110, and after trying to get it aligned learnt that I need to replace some bushes in the front end, so that's next.  Closing out this update with a nicer picture as always! 
×
×
  • Create New...