Jump to content
SAU Community

Recommended Posts

I got mine $65 exchange I was gond buy some sard injector for $1300 so for almost a grand less thats another 22 cases of beer for me to drink :P

Where from?

I got the Denso's for my 30 before the dollar went to shit, haven't looked recently but probably a lot more now..

  • 1 month later...
you all seem a little bit optimistic with your power out puts 210-240awkw with no after market ecu?

i can only give advise on my own experience power-fc, front mount, 3" exhaust, dump pipe, 10psi, 044 bosh fuel pump.

gives me 200awkw my now problem is airflow meter is maxed out and need a bigger one (stupid power-fc) and my injectors need replacing as there up the pointy end of there duty cycle. what i did find out is the neo will never make as much power as a 33 as the neo come with smaller injectors plain and simple need more fuel to make more power.

has anybody found out if rb25 injectors fit the rb25neo?

matt is right, when modding my stagea my power was quite low with all my mods, 125kw before the power fc was installed which shot it straight up to 200.9rwkw

To get any decent power increase (ie. >30kw) you will need tuning - at least just to keep it from running way too rich.

And to go anywhere over 180-200rwkw you'll need a bigger intercooler & possibly fuel pump.

Anywhere over 200kw will probably require a larger turbo.

I found that after around 160awkw things can start to get quite expensive.

Also note, the difference between awkw and rwkw on these cars is not that much. In my experience it works out to about 20kw difference. That difference is not a percentage, so it doesn't increase (much? at all?) as the power increases. At over 300rwkw the difference might be slightly more, but I'd guess that 330rwkw is around 300awkw.

The reason awkw is lower is due to the drivetrain losses - ie. the extra load caused from driving the front wheels. This extra load does not increase as you increase power, so therefore awkw will always be ~20kw less than rwkw.

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

    • There are several aftermarket options available, from not-too-painful moneyhttps://justjap.com/collections/driveshafts-bearings/products/d-max-reinforced-replacement-rear-driveshaft-set-fits-nissan-s13-s14-s15-r32-r33-r34-c35 and  https://justjap.com/products/crank-motorsport-billet-rear-axles-fits-nissan-skyline-r33-gts-t-r34-gt-t?srsltid=AfmBOorQk4xkGUa98kO7v2ePLUiNt-HRrM2AwWNw9mbSIVE1ujBVwY__, all the way up to The Driveshaft Shop https://driveshaftshop.com/skyline-cv-axles/
    • Yeah based on old XRC5964S specs, it looks to be roughly GTX3576R sized? But this 5964S compressor will flow 90lb airflow somewhat similar to the compressors in both the GTX3584RS or G35-1050.. I fully expected the 0.64 rear A/R to choke up top - seems way too small from typical convention - but these are seemingly beneficial over the prior 0.82 results.. Be interesting to see if he comments on the EFR question in that thread - he mentioned in a prior video that BW EFR's were the "cats pajamas 10 years ago", but by the sounds of things all his kits have been using Xona for quite a while now.
    • Yeah it’s still got the oem manual gearbox and clutch, only kinda mods are a blow off valve, coil overs, and a aftermarket intercooler. Also had it for about 2 months now with a lovely midnight purple paint on it.
    • Yeeeppp, been following a lot of the testing on the latest Xona stuff and there are some mental results.  He also went over 1000hp @ 4 hubs on his Mainline with a XRE6364S (63mm) which was also well into the 20psi range before 4000rpm on a 2.5. Crazy stuff. Fwiw the XRE5964S is basically the modern equivalent of their old HTA3582 - would drive nicely enough on an RB25 or 26, but proven capable of a huge amount of power if you want to spicy with rpm tho even at sane boost levels will make stout numbers 
    • The axels in my R33 seem tired, and have a bit of play in them. I cannot find any new of course, not interested in buying used, but I am looking to see if anyone can identify some cross compatible axles. In the states I have seen suggested for S chassis the J30 axles, however for the skyline (as best I can tell) the lengths are about an inch off (2.5cm) on both sides. R33 my measure L 22" R 24.5" GPT L 22.5" 24.25" J30 L 23.5" 25.5"  so shaft length is probably an inch wider. Not sure if someone has another still remanufactured option besides the J30. I figured worst case I can buy a pair tear them down and swap the center shaft. My other option was reaching out to GSP to see if they cannot piece together a set, since the axle stubs are still manufactured, I wouldn't think it be that hard to find a shaft or make a shaft work. 
×
×
  • Create New...