Jump to content
SAU Community

Recommended Posts

Just had my RB25DET fully rebuilt with forgies and all the machining to match and it's been run in properly with the mineral oils etc... The only downfall is that the ECU that was in it is a remapped Jap chip and mustn't have been tuned real or had parts changed since. So without over boosting it, the picture attached is what happens when you don't put it straight on a dyno. A bit of a learning experience (expensive learning) but just a warning to anyone looking to rebuild, don't assume your ECU will be ok for running in because obviously your motor died for a reason!!

If you want to make a grown man cry, melt his new forgies! :)

The even worse thing is that the car was booked in to get finished and the Power FC was sitting on the passenger seat looking at me waiting to put in and be tuned when the white smoke started appearing in the rear vision mirror again.

This time all is taken care of, motor's just gone back in and the car should be on the dyno in the morning. Hoping for some nice figures soon.

Paying cost for the parts and the labour is for nothing because Benny (ex-BMT) @ Chasers is looking after me because of the bad luck. So i could have come out worse if i had to pay full price for everything + labour. That's about the only bright side of this.

Still crying tho because it's bye bye to the motorbike to pay for it.

Ouch, what new turbo is gonna be strapped onto the side?

It's already got a 3037 internal gate on it when it got the first rebuild so the turbo hasn't even had a chance to boost up yet.

Motor was started this arfternoon and the car is being trucked down to Race Pace to be put on the dyno in the morning. Now got the Q45 AFM and PFC in it.

The even worse thing is that the car was booked in to get finished and the Power FC was sitting on the passenger seat looking at me......

I feel the pain, my sump baffles were sitting in the boot :D

Damn thats crazy. If it had just been freshly rebuilt, why did you give it a bootful anyway? LOL

Anyways good luck with the new rebuild...

It never copped a bootfull, that's the thing. It was run in for about 3000ks running low boost and only got given a little bit lately just to drive it normally, never got past 5K rpm, not even near red line because i was paranoyed about the computer. Most of the ks were done commuting to uni.

Needless to say the computer i took out got stomped on and pieces broken off everywhere. Wasn't even going to be sold once it was named the cause.

Are you sure the computer was the cause? I threw in a GTR fuel pump and it delivers so much now I have to use full mechanical advance to stop the motor choking on fuel when I want power. It uses so much juice that the hole in the ozone layer follows me around :D

Sorry to hear of your dramas. I too await the hallowed PFC install and refuse to drive the car until then.

Isnt Load a result of RPM?

...

Load is measured by the AFM or MAP sensor (whichever it uses)

This is how maps are created, one axis is rpm the other load.

Imagine if you are at 2000rpm down a hill, compared with 2000rpm going up a hill - you use more throttle going up the hill, as the load is higher. So both cases use the same rpm referrence, but different load referrence

I threw in a GTR fuel pump and it delivers so much now I have to use full mechanical advance to stop the motor choking on fuel when I want power. It uses so much juice that the hole in the ozone layer follows me around :D

 

Sorry to hear of your dramas. I too await the hallowed PFC install and refuse to drive the car until then.

Tell me your MPG and I'll beat you no problems :(

When I had my motor rebuilt I ran it for 2,000km before a dyno tune.

It had the old road tune on the maps already.

Can was extremely terrible on fuel early on - like as if friction were high (???) and things need bedding in.

I had a Bosch 44 fitted and the car was terribly surgey... like as if too much fuel.

Ran it on a dyno, car went back to normal response.

Did a thorough road tune via laptop, car is more surgey new, better response but fuel useage is dead on 'normal' for this type of car (ie. high but hardly worth a raise of the eyebrow).

T.

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

    • Hi all,   long time listener, first time caller   i was wondering if anyone can help me identify a transistor on the climate control unit board that decided to fry itself   I've circled it in the attached photo   any help would be appreciated
    • I mean, I got two VASS engineers to refuse to cert my own coilovers stating those very laws. Appendix B makes it pretty clear what it considers 'Variable Suspension' to be. In my lived experience they can't certify something that isn't actually in the list as something that requires certification. In the VASS engineering checklist they have to complete (LS3/NCOP11) and sign on there is nothing there. All the references inside NCOP11 state that if it's variable by the driver that height needs to maintain 100mm while the car is in motion. It states the car is lowered lowering blocks and other types of things are acceptable. Dialling out a shock is about as 'user adjustable' as changing any other suspension component lol. I wanted to have it signed off to dissuade HWP and RWC testers to state the suspension is legal to avoid having this discussion with them. The real problem is that Police and RWC/Pink/Blue slip people will say it needs engineering, and the engineers will state it doesn't need engineering. It is hugely irritating when aforementioned people get all "i know the rules mate feck off" when they don't, and the actual engineers are pleasant as all hell and do know the rules. Cars failing RWC for things that aren't listed in the RWC requirements is another thing here entirely!
    • I don't. I mean, mine's not a GTR, but it is a 32 with a lot of GTR stuff on it. But regardless, I typically buy from local suppliers. Getting stuff from Japan is seldom worth the pain. Buying from RHDJapan usually ends up in the final total of your basket being about double what you thought it would be, after all the bullshit fees and such are added on.
    • The hydrocarbon component of E10 can be shittier, and is in fact, shittier, than that used in normal 91RON fuel. That's because the octane boost provided by the ethanol allows them to use stuff that doesn't make the grade without the help. The 1c/L saving typically available on E10 is going to be massively overridden by the increased consumption caused by the ethanol and the crappier HC (ie the HCs will be less dense, meaning that there will definitely be less energy per unit volume than for more dense HCs). That is one of the reasons why P98 will return better fuel consumption than 91 does, even with the ignition timing completely fixed. There is more energy per unit volume because the HCs used in 98 are higher density than in the lawnmower fuel.
    • No, I'd suggest that that is the checklist for pneumatic/hydraulic adjustable systems. I would say, based on my years of reading and complying with Australian Standards and similar regulations, that the narrow interpretation of Clause 3.2 b would be the preferred/expected/intended one, by the author, and those using the standard. Wishful thinking need not apply.
×
×
  • Create New...