Jump to content
SAU Community

Recommended Posts

RB25DETS2 - is that 323 on a built motor? Where did you get it tuned?

Standard Head/Gasket

Standard intake manifold/throttle body

Standard exhaust manifold

Standard rods/piston/block (genuine 105,000klms with books)

HKS 3037 pro S running 24psi trailing off to 19psi by redline

Nismo 555 injectors running 90% duty

Nismo Fuel Pump

Power FC

Blitz LM cooler

Gizzmo EBC

Tuned with a datalogit and wideband by Adrian a fellow member here in SA username 180or200. His 33 is making 300 odd with standard bottom end and E85 also, definately knows his stuff.

That's a hell of a lot of power for a stock engine. Has the car been put on another dyno to check the results?

Yeah granted it is but if the 1j's can do it why not the rb. As a comparison it has been on three dynos with the same state of tune and read 250.7(DD),251(mainline) and 257 on the one it made 323 on.

did you glue or sticky tape the pistons back together?

You can blow one of these engines up at 180 with a crap tune.The knock is almost non existant with E85 the same couldn't be said with 98. Adrian who tuned my car has been running around for six months with over 300rwkw and E85.

I want E85 and i need it now!

Just make sure you get a good tune and have a fuel syetem capable of handling the xtra flow needed. Oh forgot to add i'm still running standard airbox too looks bog stock when you lift the bonnet (besides the turbo and dump of course). :P

Having 300rwkw and using 300rwkw everyday are two different things.

I'll be honest, I'm a sceptic. The 25 is probably a little less refined than the 1J, and as we all know (but probably don't like to admit that the 2J is stronger than the 26).

A dyno sheet would be awesome, as I'm keen on seeing the power curve down low. From your post I gather max power is at around 20-21psi?

Having 300rwkw and using 300rwkw everyday are two different things.

I'll be honest, I'm a sceptic. The 25 is probably a little less refined than the 1J, and as we all know (but probably don't like to admit that the 2J is stronger than the 26).

A dyno sheet would be awesome, as I'm keen on seeing the power curve down low. From your post I gather max power is at around 20-21psi?

Fair enough i'm not saying it gets used to its maximum every day that would be stupid to just thrash the living shit out of it, but if the mood arises. Dyno sheet in the RB25 upgrade thread which compares my last 98 tune and 18psi.

I can recall a good mate of mine making 321rwkw about 3-4 years ago using a HKS GT3037S with a 0.87 exh' on a standard RB25DET, although his engine did have a HKS head gasket and HKS cams. But the power levels were no different, only the fuel - 98 vs. E85 - HKS cams and a few pounds extra boost would have made up the majority of the power in this example. It would have been interesting to see how much extra his old set-up would have made on E85 - 350 to 370rwkw maybe.

I don't doubt the power figure for a second. The longevity on a standard 9:1 bottom end and stock cast RB25 pistons is debatable, but until it fails more power to Lee!

Thanks Matt

I dont see the point in pulling down the engine because of maybe's and hear say, if it chucks a leg out of bed then so be it, i will deal with it if and when it happens. State of tune and Knock plays a huge role in engine failures.

I am willing to bet that a stock RB25 bottom end will be able to handle 350rwkw with E85.

Get me a stock rb25 engine and i will drop it into my car. If i break it at anything under 350 rwkw i will pay for the engine.

This fuel is soo forgiving its not funny. You can get the MAX torque level and then advance the timing a extra 10 deg and it will STILL NOT DETONATE.

DETONATION destroys engines!!! if your not pinging your RB25 it will last shitloads longer!!! Look at old mate from wollongong who ran over 380rkw and ran a 10 sec quarter on unstable pump 98...

add e85 to the equasion and your talking BIG power. I would not be suprised if you can reach 400rwkw with e85 and a stock RB25. (maybe some rod bolts might be needed but you never know lets try it ???)

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

    • Seat of the pants assessment of the new intake: The car is way less "doughy" when hitting the loud pedal, especially off idle when stopped or in traffic, I did use a cheapo lazer thermal thingo to measure the temp around where the pod filter got its air, it was between 55 - 60°C, in saying this the car was shut off and not moving, so the OEM intake pipe was not supplying any fresh air to where the pod was when the car was at least moving A weird bonus was induction noise on the throttle in the cabin increased a bit,  I was worried that I was actually going to lose some of that induction noise I love so much, outside though, when I got the daughter to do a WOT drive by pass for me, the induction noise has increased alot when on the throttle, not quite ITB doort, but well up there I'm extremely happy with the results and have been exploring the country roads in the region  As for house mods: 1.New front fence is up and is awesome, it really upgraded how the joint looks from the street, and the added security is nice 2. Electricians have replace some interior lights, and with more lighting in the garage, a few new motion detecting lights out the front above the garage, front room, and at the front door, which I have already found heaps helpful coming and going, also now has fancy pants CCTV all round the house The only hold point for power though is the solar and batteries due to supply issues, although this will happen over the next few weeks 3. I have done a heap of landscaping out the front and I'm almost ready to do a new small retaining wall with some nice blocks to replace the brick and cemented in rocks around the raised garden beds cemented in river stone "was the fashion at the time" the house was built. I currently have a pallet of retaining wall blocks and 2 bulka bags of 20mm blue metal to replace the wood chip that is in the raised garden beds around the house 4. I now have 3 big raised garden beds for out the back to grow some vegetables, about 70cm high, 200cm long and 100cm wide 5. My 2 compost bins are already pretty full with brown, green and kitchen waste from the landscaping I'vedone so far, but they will probably take a few months to break down, so anything else that gets chopped, trimmed, and kitchen waste will just start filling the base of the raised garden beds to about 30cm before I start throwing 40cm of good compost, and stuff, for the vegetables to grow in, I'll need a few ton of compost and soil, but the local supplier can sent me bulka bags of the stuff Basically the logs, wood chips and a few strategically placed rocks for drainage, will give the beds some good organic materials down low to break down over time, and they will hold moisture during the warmer months to save the water in my big arse water tank if we don't get alot of rain So, all in all, the car and house mods are going well, and I'm really enjoying being retired, I sleep in too 0700 and slowly plod around inside until I feel like actually doing anything, and only work in the yard for as long as want, which has actually been alot over the last few weeks,  although when you look at it, it seems that not a huge amount of work has been done,  until I look at the before I started the work pics Happy days and good times indeed 
    • hahaha yeah. Plan is to get side skirts and probably just rear pods. But going to do them one-by-one. I've got a set that I really like from RHDJapen, but that one isn't shipped to AU. So need to find someone who can get it for me
    • Here's an idea, answer the questions I asked you as they are trying to work out WHY the LSD will be binding up in a straight line.
    • You haven't driven many modern cars then have you? Most of them have sfa steering feel with their stupid electric bullshit steering systems.
×
×
  • Create New...