My White Japanese Girlfriend: R33 Build

[GeorgeLow]

Lol. Funny that you'd say that cause I've got mates running over 300kw and they recommended cometic. Lol. Then again, I did a quick search and there're more bad reviews than good. Haha. Probably because some people have luck with it. Lol. Anyway, what if I dont slap in new pistons, would an 87mm fit straight on? Not exactly the biggest fan of the NEO but would a stock HG actually be able to withstand that much KW on a regular RB25DET?

[Dose Pipe Sutututu]

mine has been going strong for a while.. regularly gets thrashed on the track too

More so you need better studs, as the stock ones stretch when you start making decent power

[GeorgeLow]

Very interesting... Lol. Its a more inexpensive option and it works. Fair enough. Visited your site earlier. Great stuff.

[Dose Pipe Sutututu]

thanks man!

we're are building the eComm at the moment

But if you need brake pads, plazmaman intercoolers we can help out!

[GeorgeLow]

Cheers mate! Wow. Good luck with that, man! Sure thing. Thanks again.

Alright, so quick update. Great news! I just got my car back and she's running 1 bar of boost after so long. Turns out that the boost controller hose was blocked for some unknown reason. Oh well. All good now. Will dyno sometime this weekend. Not expecting too much tho.

[GeorgeLow]

Hello peeps! Updates! Updates!

So I finally installed a better fuel pump and the ecu. Did a before and after run on dyno.

Before: 196rwhp

After: 226rwhp

Can somebody please interpret the below graph cause the second graph looks funny? For some unknown reason, she loses power as she peaks.

Was really disappointed with the results. I was told that she was capable of churning out approx. 270rwhp if there werent any boost leaks. Then I remembered Chasers telling me that I had a cracked throttle body a year ago when my R33 was still in Melbourne. Garghh.

Moving forward, I bought some new parts for the 33 as planned. Hehe.

1) Walbro 400lph Fuel Pump (Installed)

2) HKS Fuel Rail

3) Intake Manifold

4) Bigger & Meaner Turbo - Garrett GT35R (TWIN SCROLL BABY!!!!)

5) Turbosmart RacePort BOV (Installed)

Next up on my shopping list, 80mm throttle body, 650cc injectors, bigger FMIC, external wastegate and custom twin scroll turbo manifold..

Quick question tho, I did some searches on twin scroll set ups and I'm lost between having a single wastegate or twin wastegates. Some think single is substantial, others think twin does a better job. MM... Any ideas which is best?

Oh yes. Before I end the post, I attended a Skyline Mega Gathering in Malaysia recently where 40 over Skylines turned up. Here are some from the meet. Kinda straying from the topic but you guys really need to see this. Hehe.

Til next time!

Edited April 12, 2016 by GeorgeLow

[AngryRB]

Thats a big bad turbo, will be interested to see how the TS setup goes, there is a good youtube video of this turbo in twin scroll but on a GTR, gives you an idea of the response/performance

look up ....( GTR RB26 twins vs single motive dvd)

[Dose Pipe Sutututu]

That turbo is HUGE... anyhow, you can run a single say 50mm gate, but you need both pulses split (Cyls 1~3 and Cyl 4~6) all the way to the seat of the gate.

Or run twin 38mm gates, might work out easier.. I suggest bigger injectors.. 650cc is meh.. get modern Bosch ones, somewhere in the 1150cc range.

[admS15]

Things are gonna get very interesting with that beast of a turbo bolted on. As far as your current graph, looking at the boost, it's spiking to aound 1.1 bar and then dropping straight off and ends up at 0.5 bar in top end. Your boost controller is not working or setup properly. What is controlling boost, Ecu or stand alone boost controller?

[GeorgeLow]

Thanks Mark. Checked the video out. Pretty helpful tho they only did a comparison between twin turbos and single turbo.

Johnny. You're back. Lol. Twin gates work out easier meaning?

1150cc?!?! Isnt that a little excessive? Are 750cc and 1000cc any good? Cause some actually hit the 335rwkw mark with 750cc..

Adms15, Yea man. I cant wait for it to be bolted on along with everything else and a tune. I'm targeting around 300rwkw. Thanks buddy. Was hoping to identify the reason as to why she is losing power. I'll have to get her looked at this weekend hopefully. I'm not too sure tho. I suppose the ecu kinda overwrites everything including boost controller, no? Before installation of ecu, i ran a turbosmart boost controller.

[Dose Pipe Sutututu]

easier for plumbing as the pipe work is smaller where the gates come off the manifold... you can run a single "larger" gate somewhere in the 50mm range and do something like this:

I personally run 875cc Siemen DEKA IV top feed stainless steel injectors and my duty cycle in hitting 90% (or so) already.. I'm going to re-tune the car soon as it has a new turbo setup and I'm pretty confident I'll run out of injector pretty soon... but saying that, because they're modern injectors I'm able to bump the base pressure without any real issue.

New modern injectors are very linear, meaning they won't fall off like your conventional injectors and give you poor economy and/or idle with low pulse widths.

Oh.. that turbo is a little overkill for 300kW not to mention will be on the laggy side.. how big is the compressor? 76mm or 82mm?

[admS15]

So your ecu is now controlling boost? If yes, then either the target and duty cycle settings aren't set right or the boost control valve is incorrectly plumbed. Best to get the problem sorted now, so when you do your upgrades its one less thing to worry about.

[GeorgeLow]

I'm actually considering twin gates as they're a much more inexpensive option which actually perform similarly to a single one. Then again, I'll consult my mechanic about it to further understand this. Owh. Interesting. Do they have the side feed ones? As in modern injectors or are they all top feed? I was told that the turbo is capable of making around 360 to 400rwkw. Thats massive. I'd have to modify the internals. Lol. 350rwkw however does sound tempting. I'll be honest. I'm not too sure. It says Garrett M12 AR.70 on the compressor section but it says AR.82 on the turbine section.

Long story short, my tuner sucks. Lol. Incompetent tuning at an exorbitant price. I'm actually considering other options. Called him up and he told me that he couldnt remember. Anyway, thanks admS15 for pointing me in the right direction. I'll look into it when I can. True what you said there. Sort it out and one less thing to worry about..

Edited April 15, 2016 by GeorgeLow

[Dose Pipe Sutututu]

Take it to Chequered Tuning, Trent will sort you out.. he knows his schizzle.

That looks like a GTX3582... which is freaking huge LOL... will make north of 450kW....

[GeorgeLow]

Johnny, I have moved back to Malaysia. Lol. Wish I could tho. 450kw?! I'll have to upgrade my engine internals dont I?

[Dose Pipe Sutututu]

ooooooooooooooo now you're fuarked LOL...

that turbo you have will flow stupid numbers... however your motor will go BANG!

[GeorgeLow]

NOOOOOOOO!!!

Lol. In all seriousness tho. I'm sure I can safe tune it to 300 to 350kw. Lol. Turbo'd be sleeping tho.

[Dose Pipe Sutututu]

and your car will be super lags

those GTX turbos love about 1.6~2 bar of boost

[GeorgeLow]

OMG!! I'm dead!!

So is it safe to say that GTX turbos are good for engine rebuild?

[Dose Pipe Sutututu]

Well if you run them lower boost it will be fine, till you can afford a new motor... but they like loads of boost to be efficient