Merli

LESS WING. MORE BOOST.

Only Series 3 R33 GTRs (1997-1998) came with them standard. If you see any other earlier model GTRs have them, it was either a factory option or fitted aftermarket. No idea about R32s.

Depends if my car is fully run-in and tuned by then...

Matt: If you buy that, don't you DARE respray it to Midnight Purple... That blue colour is extremely rare :) P.S. Beautiful car

I will definitely be gunning to make this one... It's out of my hands though

Well that doesn't sound like the most reputable source now... does it? Perhaps before spending your cash on a new turbo, you should get the problem professionally diagnosed? I think you'll find your answer lies in the 3rd post in this thread. Everything points to a cracked ringland and a whole heap of blow-by. Take Buster's advice and get a leakdown test. It's cheap, and I think it'll save you about $300 or however much you're planning on buying a VG30 turbo for

Who diagnosed it as a blown turbo seal?

I thought Raymond's MR2 was running a GT3040? That's what he told me when we last spoke? He hasn't gone larger has he?!?!

Fark me dead.... It seriously took me about 5 minutes to read that sh1t. I had to pronounce each and every word like I was learning how to read...

mines_datsun bought a WRX??? :confused:

They give you velcro to attach the support bracket to the unit so you can screw the bracket into the standard position. When it's screwed into the standard position, the body of the PowerFC touches the metal of the chassis. Instead of shooting the idea down, why don't you just try it? What have you got to lose?

I thought the GT2530 for RB25 had that machined aluminium snout on the intake side?

I see, I see... 4mm doesn't sound like a very useful restrictor to have, I understand why you're considering a smaller one. Understood about cheapest solutions first troubleshooting I have no idea what the differences are between the different releases, but I know the GT2530 for the RB25 is VERY different to the GT2530 for the RB26... I was just saying that to illustrate the point that if HKS were to goto the trouble of releasing different turbos for different engine applications, perhaps Sydneykid's theory of "one turbo to suit all applications" doesn't apply to HKS's range? Perhaps if HKS were to goto the trouble of releasing different turbos for different engine applications, their turbos might have restricted oil lines to suit each engine application? Also another thing to consider, is... as far as I know, the N1 oil pump isn't a higher volume oil pump, as compared to a standard GTR oil pump (not sure about the GTS-t standard oil pump). All it is, is a higher pressure pump, but standard flow rates.... So if what I've researched is correct, you shouldn't have any extreme oil flow increases that might warrant restricting oil to the turbo any further? I'm just throwing ideas around, none of the points I have brought up are concrete, they're just adding food for thought

Sydneykid? I'm actually very interested in learning how to calculate rev drops and powerbands from gear ratios I like to know the theory and mechanics behind things, not just plug numbers into a "magical calculator", but thanks chops

Brendan, As far as I know, HKS make different turbos for different applications. e.g. An HKS GT2530 for RB25 is *NOT* the same as an HKS GT2530 for an RB26. Secondly, as seen on Steve's GT3037, it already have a 1.2mm restrictor built into the centre housing, so obviously it was meant for a high oil pressure application. So if they were to release different turbos, depending on what engine application you have, and taking into account the built-in 1.2mm restrictor on the HKS GT3037, how does that fit in with Sydneykid's "all turbos are built for low oil pressure applications" theory? Have you looked at the centre housing of your GT3040 Brendan? Perhaps it already has a restrictor like the GT3037? And white smoke blowing on decel could point to a lot of things, not just over oiling the turbo

I've noticed that some PowerFCs uses it's metal case to ground itself. You can't just have it lying on the carpet, you need to screw it into the bracket in the kick panel which will ground the unit. Others I have seen have worked fine lying on the carpet, so I dunno?

Jesus. :uhh: :uhh: :uhh: :uhh: How's that new play-doh set going for you mate? Made any interesting lego castles lately? :uhh:

It would be better without that awful fake motion blur

I seriously doubt that :Oops: Wow... A member of the automotive industry putting a bad word on a competitor's service/product?!?! Well I'll be!!!!!!!!! Bottom line is, high flows are made by attacking the injectors with a drill. Ask him for a 100% MONEY BACK guarantee of a 1cc difference across the range of injectors, to be tested by an independant source, and see what he says Even new injectors have upto a 5-6cc difference across the range. You can tune this out via a programmable ECU like the PowerFC, or fit the higher flowing ones in the leaner cylinders. If your budget can accomodate new injectors, go for it... If not, I suggest second hand injectors of your required size and have them ultrasonically cleaned and flow tested... If you're building an "N1" spec car like Dundan, then I guess you have no choice but to take a gamble and get your injectors drilled out, but that would be the last option on my list :spcow:

It's happened to me before... Just unplug it, check all the pins are still straight, and try plugging it back in again. If it still doesn't fire up after a few tries, check the power wires going TO and FROM the PowerFC (yes the PowerFC has OUTBOUND power wires)... Other than that, it could very well be buggered? It's just a straight plug-in, and it should turn on and let you switch off the boost control option (if you're not using the boost controller, you have to turn the option off in the menus, otherwise it won't start properly/idle)

Then why would you say: "In fact its about the only form of motorsports where there is no cheating... THats right you cant cheat a clock!!!! Everyform of circut racing i have seen or been involved in there are blokes cheating" That EXPLICITLY implies that you think that there is cheating in every form of motorsport EXCEPT drag racing...... Hmmmm, perhaps you just have trouble articulating your posts What field I'm in is completely irrelevant. What I was astounded at, was the stupidity in your blanket claims, in that just because a person has chosen a career in one field, that automatically means that he/she cannot have any knowledge in another... and in fact their advice and comments should be discarded because "they no SH!T ALL!" (oh the irony! :Oops: ) Again, perhaps you are let down with your ineloquence and inarticulation. If so, then you have my apologies

Ahhh, fair enough too.... That car is my hero

Why was the Mines GTR brought up anyway? It's not like Mines wave their dyno figures around like a "ricer" (as per this thread)... They stand behind their lap times

:) :rofl: You think that rally guys are constantly trying to slip one past the scruitineerers (true), but no-one does the same thing in drag racing? Are you being serious, or are you just playing dumb? "You can't cheat a clock".... No, but you can cheat with modifying things on your car that are illegal in your class of drag racing. To think no-one tries to slip by illegal modifications is utterly ridiculous. ............... Because you know, you can only do one thing in your life. You couldn't POSSIBLY have interests in more than one field I know some IT people that know a LOT more about cars than many mechanics do. Remember that mechanics aren't exactly brain surgeons They don't know the physics and engineering behind a lot of what goes on in and around your motor. And just because you didn't install those camshafts in your very own workshop, it doesn't mean that you don't know anything about camshaft duration, lobe seperation, lift vs. powerband selection and flow dynamics. To discount someone's advice/opinion because they aren't a mechanic is extremely narrow minded.

Yeah, going by that article, those are just GT-SS and GT-RS turbos, flanged for a bolt-on application for RB20/RB25... You can see the ported shroud on the GT-SS in that photo... No new releases for GTR application unfortunately