Jump to content
SAU Community

Recommended Posts

Hi,

Most will probably say what the f**k are you doing.

but yes, i do want to convert my rb26dett to a 26de.

Reasoning: just finish the build on my 32gtr, and i want to enjoy that. however, i still have a standard rb26 sitting around....along with a standard 72' datsun 240z...so that should clear it up abit more.

I dont ever plan on selling the s30 and im tossing up between keeping it original l24 or going rb. my reasoning towards the rb conversion is that since i dont plan on selling it and keeping the L24. i might as well go all out...

What kind of things would need to be done to convert the standard rb26 to a na screamer. im awayre of the pistons to up the compression. but any thing else?

Link to comment
https://www.sau.com.au/forums/topic/435033-rb26dett-to-rb26de/
Share on other sites

imagine this...

a RB26DE, with super high comp, with HKS V Cam (optional if you want any low end), stupid duration cams, 6 flutes and a redline at 10k in a 240Z...

brap brap brap brap brap brap

but say if you skimmed the head all the way to a 10:1 surely it wouldn't be "that" bad right?

10k redline N/A ITB would be sick.. and stupid as long duration cams, but of course will need some form of VCT to give it more poke down low.

http://forum.r31skylineclub.com/index.php?topic=104694.0

/\ Here

from the topic

IMG_4531.jpg?t=1230424228

What it has:

Adaptronic ECU
1 Bar Haltech Map Sensor

Nismo Pressure Plate
Chromoly Flywheel
Cushioned Button Clutch

Series 2 R33 GT-R Head
Camtech Cams 290 degree (seat to seat), 263 degree (50 thou), 11.5mm lift - Biggest for RB26 from Camtech at the time
Adjustable Cam Gears
Supertech Valve springs
Supertech Valve Stem Seals
Bosch 440cc Injectors
Nitto Intake and Exhaust Gaskets
Nitto 1.8mm Head Gasket
Head Stud Kit for RB30DE/T setup
Running very close to 12:1 compression
RB25DE Pistons (slightly shaved)
Mahle Motorsport Ring Set
Balanced Rods
Tomei Oil Restrictors
ACL Race Main Bearings
ACL Race Big End Bearings
Crank has been grub screwed
Crankshaft oil pump drive collar
R33 GTS-T Oil Pump
R32 GT-R Water Pump
Ross Tuffbond Harmonic Balancer
Lewis Engines Race Sump 7.5lts Gated
Splitfire Coilpacks
Rebuilt HR31 GTS-X radiator
Head to Sump oil/air separator


Tuned Equal Length Hurricane Extractors
2.5" Mandrel Bent Exhaust
3" Stainless Steel Cat
Hotdog
Mega flow rear muffler (straight through style).

topic property of DMN NA R31sc.com

Edited by GH05T

i would honestly rather keep the Z n/a. and what better engine for it than the rb. i dont really care about the power, my gtr is there for that. Im all down for the screaming high revs bouncing off trees when i go for a drive. i think it would be better if i just na a rb26dett rather than buy a 1 of 200 autech rb26? last i heard they were goin for 6k...IF you can find one. LOL. rb26/30 na would be affordable.. jsut swap over some parts n vwoahlah. (ok maybe not that easy) but within reach. ive been trying to source a autech rb26....not happening.. =\

i pm'd him. hopefully he replies. im hoping to go to his workshop since he is fr sydney, and check out his work. his build showed it got 170rwkw... which isnt much. but from a FR car that weighs 1000kg and an engine that can rev over 9k. mmmmm

Why not RB25DE NEO ?

Why not RB25DE NEO ?

Great option.

It's never going to be a power house like a turbo motor. But this would be a great option. Cheap motor, set it up using headers and ITBs. No need to even open it, besides cams. Enjoy the noise and cruise in a awesome sounding and looking car.

Leave the power to the R.

DO IT

skimmed the head because the 8.5:1 compression will suck donkey cock, bring it to like 9.5:1 or even more if the pistons don't foul the valves.

then mod the intake plenum and install 6 flutes, bring the rev limiter up to 10k (I'm sure it will spin easily to that safely as it's now making 1/2 the power)

then whack on some retarded long duration cams...

brap brap brap brap hahah

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

    • Who did you have do the installation? I actually know someone who is VERY familiar with the AVS gear. The main point of contact though would be your installer.   Where are you based in NZ?
    • Look, realistically, those are some fairly chunky connectors and wires so it is a reasonably fair bet that that loom was involved in the redirection of the fuel pump and/or ECU/ignition power for the immobiliser. It's also fair to be that the new immobiliser is essentially the same thing as the old one, and so it probably needs the same stuff done to make it do what it has to do. Given that you are talking about a car that no-one else here is familiar with (I mean your exact car) and an alarm that I've never heard of before and so probably not many others are familiar with, and that some wire monkey has been messing with it out of our sight, it seems reasonable that the wire monkey should be fixing this.
    • Wheel alignment immediately. Not "when I get around to it". And further to what Duncan said - you cannot just put camber arms on and shorten them. You will introduce bump steer far in excess of what the car had with stock arms. You need adjustable tension arms and they need to be shortened also. The simplest approach is to shorten them the same % as the stock ones. This will not be correct or optimal, but it will be better than any other guess. The correct way to set the lengths of both arms is to use a properly built/set up bump steer gauge and trial and error the adjustments until you hit the camber you need and want and have minimum bump steer in the range of motion that the wheel is expected to travel. And what Duncan said about toe is also very true. And you cannot change the camber arm without also affecting toe. So when you have adjustable arms on the back of a Skyline, the car either needs to go to a talented wheel aligner (not your local tyre shop dropout), or you need to be able to do this stuff yourself at home. Guess which approach I have taken? I have built my own gear for camber, toe and bump steer measurement and I do all this on the flattest bit of concrete I have, with some shims under the tyres on one side to level the car.
    • Thought I would get some advice from others on this situation.    Relevant info: R33 GTS25t Link G4x ECU Walbro 255LPH w/ OEM FP Relay (No relay mod) Scenario: I accidentally messed up my old AVS S5 (rev.1) at the start of the year and the cars been immobilised. Also the siren BBU has completely failed; so I decided to upgrade it.  I got a newer AVS S5 (rev.2?) installed on Friday. The guy removed the old one and its immobilisers. Tried to start it; the car cranks but doesnt start.  The new one was installed and all the alarm functions seem to be working as they should; still wouldn't start Went to bed; got up on Friday morning and decided to have a look into the no start problem. Found the car completely dead.  Charged the battery; plugged it back in and found the brake lights were stuck on.  Unplugging the brake pedal switch the lights turn off. Plug it back in and theyre stuck on again. I tested the switch (continuity test and resistance); all looks good (0-1kohm).  On talking to AVS; found its because of the rubber stopper on the brake pedal; sure enough the middle of it is missing so have ordered a new one. One of those wear items; which was confusing what was going on However when I try unplugging the STOP Light fuses (under the dash and under the hood) the brake light still stays on. Should those fuses not cut the brake light circuit?  I then checked the ECU; FP Speed Error.  Testing the pump again; I can hear the relay clicking every time I switch it to ON. I unplugged the pump and put the multimeter across the plug. No continuity; im seeing 0.6V (ECU signal?) and when it switches the relay I think its like 20mA or 200mA). Not seeing 12.4V / 7-9A. As far as I know; the Fuel Pump was wired through one of the immobiliser relays on the old alarm.  He pulled some thick gauged harness out with the old alarm wiring; which looks to me like it was to bridge connections into the immobilisers? Before it got immobilised it was running just fine.  Im at a loss to why the FP is getting no voltage; I thought maybe the FP was faulty (even though I havent even done 50km on the new pump) but no voltage at the harness plug.  Questions: Could it be he didnt reconnect the fuel pump when testing it after the old alarm removal (before installing the new alarm)?  Is this a case of bridging to the brake lights instead of the fuel pump circuit? It's a bit beyond me as I dont do a lot with electrical; so have tried my best to diagnose what I think seems to make sense.  Seeking advice if theres for sure an issue with the alarm install to get him back here; or if I do infact, need an auto electrician to diagnose it. 
    • Then, shorten them by 1cm, drop the car back down and have a visual look (or even better, use a spirit level across the wheel to see if you have less camber than before. You still want something like 1.5 for road use. Alternatively, if you have adjustable rear ride height (I assume you do if you have extreme camber wear), raise the suspension back to standard height until you can get it all aligned properly. Finally, keep in mind that wear on the inside of the tyre can be for incorrect toe, not just camber
×
×
  • Create New...