Jump to content
SAU Community

Recommended Posts

I don't think it's a case of how long it will last, moreso how it will break. We pulled the head off on the weekend, pistons were absolutely mint, no detonation marks at all.

We're thinking it will be conrod or gudgeon pin related when it fails. Either way we're looking forward to seeing how.

It is our development car, and we have a BC 2.2L bottom end assembled ready to go when it goes boom!

As mentioned previously, we will offer free tuning to a donor RB25DET owner wanting to put one on a 5557 purchased from us. Don't be shy guys :verymad: If we had an RB25 as one of our project cars it would be on it!

Other side of Australia so no chance of that haha

What are the housing sizes on these things like, I assume you would need a spacer to bolt onto a standard RB25 manifold?

I tried (not to that extent) with my 3037S with a 1.12 a/r rear. It made 376kW on 25psi on my SR, we didn't got further as the boost line started to fall. I think that all I would have been doing is overspooling it.

I don't think it's a case of how long it will last, moreso how it will break. We pulled the head off on the weekend, pistons were absolutely mint, no detonation marks at all.

We're thinking it will be conrod or gudgeon pin related when it fails. Either way we're looking forward to seeing how.

It is our development car, and we have a BC 2.2L bottom end assembled ready to go when it goes boom!

Very interested to see the mode of failure when it does go, could you post a thread up for all of us to see if (when) it does fail?

As mentioned previously, we will offer free tuning to a donor RB25DET owner wanting to put one on a 5557 purchased from us. Don't be shy guys :) If we had an RB25 as one of our project cars it would be on it!

Wow, good offer kemp, someone should take up on this offer :D

  • 2 weeks later...

Just to let you know guys, we are now offering the 62 and 67 range with divided split pulse T4 housings. This is something new from Precision, I'm sure it will make it a lot more attractive for some of you with twin scroll setups! We have .84 in stock and are able to offer 1.00 and .70

  • 2 weeks later...

We supply the whole billet range from the 5557 to 6765 comes with a 0.70 a/r comp cover, however we can special order the non ported covers which have a 2.8" intake, as far as I'm aware they are a 0.60a/r front, similar to a 3076R in size.

  • 2 weeks later...

Well after some Friday arvo beers I managed to Gee the boss up pretty hard, basically I stressed that there was no point in us going out to get kicked off for a mid 10, let's try to run a 9....

So, I came back around 30 seconds later with a 6262SP in hand and it didn't take much convincing. Friday was a party here at Powertune, music cranking, cashews, chips, and within a very short time the turbo was on and the Red Dragon was getting reversed onto the rollers.

Had a solid 5 passes on the dyno, but we knew the 6262 needed a bit more boost to get it in the zone, though 45psi didn't agree with something in the engine! It filled number 2 and 3 with water so we're thinking it's either lifted the head again or cracked the block around a water jacket.

Anyway, I've rocked up here this morning and the engine is out, and 2.2L stroker in ready to go, in fact they're finish up the install of the built engine now with the 6262SP on. Get ready for round 2 :)

ncsd5.jpg

We were getting frustrated with it living :)

The other passes were on a lower boost setting

Well it copped the initial load, then unleashed the tyres with 3 of us in the back which it has never done, it did hold 45psi flat though.

It would have definitely been over 430kW, I'd say 450kW at a guess. Sadly we'll never know!

Will keep you updated when we crack it open to find out the truth

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

    • What an awesome idea to fit the facelift Lamborghini Diablo headlights. They are a perfect fit!
    • An update regarding the registration with the DVLA I sent off the paperwork the day after I collected the car from the port, two weeks later it was all returned with a letter explaining they have rejected the application. This was because the cheque was £20 short for the road tax (I used a price list I found online). Nevermind it is what it is, it was sent back to them the following day with a new cheque. Fast forward another 2 weeks or so, I called them for an update to be told it had been rejected. Yesterday (16th September) I received the documents back along with another letter, this time it was because I didn't put an X in one box on the V750 (personalised number plate certificate), which declared that I had the rights to the personalised number plate. Why this wasn't mentioned in the first rejection letter, I don't know, but it could have saved this headache. The documents were sent back today, so fingers crossed third times a charm and it'll FINALLY be registered on the road just in time for the bad weather (woohoo!) To cheer myself up I lowered the front 25mm, was sick of seeing it sit like a monster truck. No idea how much clearance I'll have getting on and off the driveway, I'll worry about that when I can actually drive it
    • You're going to miss not worrying about rust in the strut towers like the Skyline shitboxes out there
    • A few little updates that weren't filmed due to not taking long to do or not interesting enough for their own video. My new K&N Air Filter arrived, I went with an RU-4180 which matched the dimensions of the universal cone filter the car originally had.  The battery had gone flat, while that was charging I tidied up the spaghetti wiring at the bulk head and down the sides of the engine Next job was to swap the stereo The Kenwood harness had the female ISO plugs cut off and the male ISO plugs cut off the adaptor loom and joined with bullet connectors. I ordered in a repair loom through work and re-did it all. New Kenwood unit installed (Android Auto, DAB, Bluetooth, Reverse Camera) The bonnet/hood gas struts have been poor since collecting the car. I couldn't find any suitable replacements locally so took a chance on a pair from AliExpress.  The originals don't use a retaining clip to secure the cup onto the ball fixture, would explain why I struggled for 10-15mins trying to pry off the cups. The ball fixtures unscrew using a 12mm spanner, new ones are the same size. Sadly no photo of them fitted, you're not missing much lol The dished Momo steering wheel got replaced with my Momo Tuner, turns out I ordered counter sunk bolts for the horn trim ring (like they normally are for the steering wheel) instead of allen cap (flat seat)  A terrible photo of a Quaife style gear shift knob I've had stashed in my tool box for many years after purchasing the incorrect thread size (I can see a pattern emerging with ordering incorrect parts...) Also threw in a cup holder and a (empty) Boss Coffee can, because why not  
    • GT-R clearly the better choice! The 300 is certainly not insaly fast but has a decent amount of poke. Does a nice little drift around the corners with a decent amount of throttle. It's VERY predictable in a slide too.  Feels so progressive! People probably presume there's a 25 year old driving it based on my behaviour this week! 🤣
×
×
  • Create New...