R32 GTST - 600KW+ RB28/CD009 Build

[TurboTapin]

Driveline vibration is resolved. I ended up loosening all my engine mount and trans mount bolts, giving it a good shake then retightening everything and it's gone... Let's just say I was surprised that fixed it. 

I've been happily driving it around again but unfortunately put zero time into my direct port/constant pressure WMI setup. I'm on vacation next week, so I'll try and finalize it then. 

On a different note, I spent all week fuel/ignition mapping 2x 216L V16 engines. Turbo's were burning glycol and we swapped them out for larger units. We also had planned emissions testing on site, so I figured I'd be there the same week to use their instrumentation and massage any emissions issues out if needed. This was a first for me. Fuel management is similar in certain ways to automotive (i.e air density as load variable) but very different in others. It's all PLC based and AFR's are controlled by air and not fuel. They use a control valve between the turbo and air manifold to control pressure which in turn controls AFR's. Due to this, target AFR tables supplied by the OEM are in pressures and not mass which really through me off. They use air pressure vs fuel pressure tables. I also relied on an O2 concentration sensor the emissions team had in the exhaust. Ignition timing was also all over the place and we were losing a fair bit of power. They're now happily sitting at 16-40BTDC depending on load. We were making about 1600kw at 900rpm at 90% load. Engines were running a lot smoother as well.

 

 

Edited June 27 by TurboTapin

[Satwinder]

Hi,

where did you manage to get 32mm release bearing carrier, it's really hard to find one in NZ . I have sort of same setup with xtreme twin plate clutch kit. I have 19mm release bearing with 18mm carrier measured back of bearing to where fork sits but it isn't enough ,it hardly touches fingers once fork pushed all the way back, I measured out and find out I'm short of 18mm.

Thanks

[Dose Pipe Sutututu]

ooft... what a turbo, does it dose? lol

[r32-25t]

1 hour ago, Satwinder said:

Hi,

where did you manage to get 32mm release bearing carrier, it's really hard to find one in NZ . I have sort of same setup with xtreme twin plate clutch kit. I have 19mm release bearing with 18mm carrier measured back of bearing to where fork sits but it isn't enough ,it hardly touches fingers once fork pushed all the way back, I measured out and find out I'm short of 18mm.

Thanks

Nissan would be your best bet 

[Satwinder]

On 30/06/2025 at 1:50 PM, r32-25t said:

Nissan would be your best bet 

Thanks,managed to find one from Australia.

[TurboTapin]

15 hours ago, Satwinder said:

Thanks,managed to find one from Australia.

Your local Nissan dealership should always be your first go to. Get your parts from the source, without the middle man. I also recommend you start an account at your dealership, I get 15% off with mine.

You would be appalled with some of the mark ups I see from third party distributors (200%+) 

[TurboTapin]

I finally got around to completing my WMI SS direct port tubing. I ordered a snow performance 6 port manifold but it seems they are now owned by Nitrous Express. It has the NX logo on both sides. I'm expecting this to lead to a lot of unwanted nitrous questions 😅

 

[Dose Pipe Sutututu]

Actually looks like a Nitrous setup now 😆

[MBS206]

Hopefully that's not too confusing for the PoPo in Canada! Mr Plod even thinking you had Nitrous plumbed in on the street in Australia would lead to a 7-10 year stint in maximum security...

[TurboTapin]

17 hours ago, MBS206 said:

Hopefully that's not too confusing for the PoPo in Canada! Mr Plod even thinking you had Nitrous plumbed in on the street in Australia would lead to a 7-10 year stint in maximum security...

Haha luckily we don't have emissions, inspections, or any laws against power adders here. They only thing they somewhat keep an eye out for are ridiculously loud exhausts. 

[TurboTapin]

Well, my new WMI system took much longer to finalize. I actually missed my dyno appointment last Friday and lost my 150$ deposit. I'll be going back in the next week or two. 

To sum it up. I only kept the AEM tank from my old setup. I replaced the AEM pump with a higher flow/pressure ProMeth 30GPH pump. I also swapped over to a 6AN low pressure feed line to the pump from the tank. There's also a pressure switch you cannot see on the pump high pressure line. 

 

This is feeding 6x 200CC direct port nozzles and 1x 500CC Pre Throttle body nozzle. All fittings are Swagelok, because well why not. I also have a 300PSI pressure sensor up front. 

 

I now have my Haltech ECU controlling everything. I start my pump with a basic relay at 5PSI and deadhead it. I then PWM a 3000CC methanol Injector to control flow starting around 10psi. The pressure switch in the trunk, along with my tank level are safeties before I ever get to 10PSI, and then I use my pressure sensor upfront as a secondary safety to cut the WMI and corrections in case the injector blocks or a line ruptures. 

Wish me luck on the dyno!

 

 

Edited Saturday at 01:03 AM by TurboTapin

[MBS206]

Just trying to get my head around this.

At 5psi of boost, you turn on your wmi pump, and then you're using a 3000cc injector, to allow flow upto the actual engine, where you have your 6x200cc injectors and a 500cc injector.

If the above is correct, what advantage are you obtaining by having the 3000cc injector blocking flow, is this just incase a line breaks between that injector and the motor you can stop flow immediately?

Or are the 6x200cc and 500cc less injectors and just spray nozzle?

[TurboTapin]

6 hours ago, MBS206 said:

Just trying to get my head around this.

At 5psi of boost, you turn on your wmi pump, and then you're using a 3000cc injector, to allow flow upto the actual engine, where you have your 6x200cc injectors and a 500cc injector.

If the above is correct, what advantage are you obtaining by having the 3000cc injector blocking flow, is this just incase a line breaks between that injector and the motor you can stop flow immediately?

Or are the 6x200cc and 500cc less injectors and just spray nozzle?

They are in fact just nozzles. They are there only to produce a spray pattern and limit flow. The injector itself is what I use to control flow to the 7x nozzles. My old system had no injector and only PWM the pump. This lead to a lot of inconsistencies, and poor atomization at low pressure when the pump was ramping up. 

Edited Saturday at 10:36 AM by TurboTapin

[Dose Pipe Sutututu]

Literally looks like direct port nitrous haha

[TurboTapin]

On 06/09/2025 at 7:01 AM, Dose Pipe Sutututu said:

Literally looks like direct port nitrous haha

I know -_- Oddly enough I went to a car show this weekend and not a single person made any mention of Nitrous... I did have to argue with a know it all that was convinced I had an RB26 head with HKS V-Cam as opposed to a regular VCT RB25 head, but what do I know. I think my HKS oil cap was throwing him off. 

[Dose Pipe Sutututu]

LOL.... a good amount of people (not all) on that continent seem to know everything and like to measure things in bananas, football fields, statue of liberties instead of the metric system lol.

[TurboTapin]

16 hours ago, Dose Pipe Sutututu said:

LOL.... a good amount of people (not all) on that continent seem to know everything and like to measure things in bananas, football fields, statue of liberties instead of the metric system lol.

I live in a French European province, within a very metric country. We hate football here and the statue of liberty was actually built in France haha. Sadly, we're currently also feuding hard with the US due to tariffs. The US is the US. Everywhere else, is everywhere else. 

[MBS206]

3 hours ago, TurboTapin said:

I live in a French European province, within a very metric country. We hate football here and the statue of liberty was actually built in France haha. Sadly, we're currently also feuding hard with the US due to tariffs. The US is the US. Everywhere else, is everywhere else. 

[TurboTapin]

31 minutes ago, MBS206 said:

Haha good old Letterkenny! If you're looking for another great english canadian comedy, I strongly recommend Trailer Park Boys. 

[MBS206]

3 hours ago, TurboTapin said:

Haha good old Letterkenny! If you're looking for another great english canadian comedy, I strongly recommend Trailer Park Boys. 

Ill review it again, from memory when I first saw some of Trailer Park Boys I wasn't a huge fan.

I ended up at Letter Kenny after watching Shoresy, which is a bit ass backward, ha ha