ECR033

Al, thanks for the info (only noticed your post today). I did read something a little while ago about someone doing the hiflow with VG30 exh housing and getting good results. I'll look into it as well - and yes, it's also added to my confusion porschephile, definately post up the dyno chart from your friends car if you can - i'd be very interested to have a look. I assume that your friend has the GT2835 with the .87 turbine housing? Also, just having another look at the Nengun website. They have the 2835's on special for $2,560 delivered to Sydney One question though, they have 2 versions of the GT2835 with A/R 0.87...one with Strong Actuator attached 80mm diameter and the other with 100mm diametre. Pardon my ignorance, but what exactly does the actuator do and which choice would be better for my application?

Hehe, one of those would be mine...I was flicking through the mag at the newsagent today and noticed a small shot of the arse end my car in the middle of page 150

Finally a decent result! I think Webber drove a very good race. 4th is definately a good result considering the conditions and his starting position on the grid. I thought he was reasonably quick in the damp conditions and other than the gamble to go on slicks, he drove a very sensible race. Importantly, he's also now back ahead of Heidfeld in the championship standings...hopefully he can grab some more points in Brazil

Nice result mate.I'd also like to know which size turbine housing you're using (i.e .68 or .87)? If possible, could you also post up a copy of your dyno run? Thanks for the info disco & RS500. It's been a great help, although I'm still slightly confused on what to do!

Geez, $2195 isn't cheap either... I wouldn't pay that or the $430-$500/year here in NSW for full personalised plates. I don't mind paying a little extra to have something a little different, but at the end of the day, they're just number plates after all and IMO the money could be better spent elsewhere.

There's a heap of threads on this upgrade mate. Have a look in the RB25 turbo upgrade thread at the top of the forced induction forum and do a search...you should find a heap of info To answer your question, hi-flow's are generally just as responsive as a std turbo, so it should start making boost from around 2700-2900rpm. Most people get around 225-240rwkw with the usual supporting mods, but I've heard of instances where they've made up to 260rwkw with cams (SydneyKid's 34 for example). Hope that helps.

Thanks mate - appreciate the help. Let us know once you've got it all complete as I wouldn't mind having a look

One more thing... I noticed that the 3071R has a T25 flange as opposed to a T3. I know this probably sounds stupid, but is it just a matter of getting an adapter plate made up to fit to it, or is there more to it?

czy18e, I agree, I don't think the 3040R with the .83 rear is overly laggy. I've spoken with gcg and apparantly I can expect to start seeing boost around 3500rpm. Obviously, I'd expect the 2835 to come on boost earlier though, I'd just like to know how much earlier it would start making boost. Also, I won't be going down the path of getting the 3040R with the .63 rear as I've heard they come on boost like a rocket, so traction would be a real issue even on a very good suspension/tyre setup. paul, I think you've accurately described my dilemma! To answer your question, I want good response, mid range and top end In reality, it's just a shame that you can't have all 3 components, but I'd like to get the best compromise on these components without sacrificing too much of either of them. I don't know if I'm pushing the limits by wanting a streetable car that also does a decent 1/4mile and track work. I did originally contemplate the hi-flow for those very reasons, but in the end I didn't want to only go half way with the turbo upgrade so to speak as I know that I'll probably be looking for more than the 240-250rwkw that it could produce. disco, Nope, not turbocharging an NA - just upgrading the std turbo on my R33 RB25DET So you would recommend the 3071R as the better of the 2 options I've already mentioned? Or was that only in the case that I was turbo charging an NA rb25 due to the higher CR? I've had another look on the GCG website and they've got the 3071R, with the 0.7 comp housing and 1.06 turb housing. Do you think I'd be better off with this combo, or should I see if it's possible to put together a 3071R with a 0.50 comp housing and say a .87 turbing housing? If so, when could I expect to start seeing boost on this combo? I'm assuming that it shouldn't have any problems making the 275rwkw I'm after...

Not yet mate - still looking into it. Once I sort out exactly what I need done, I'll drop you a PM

I know that some may think this has been done to death, but hear me out first Basically, I'd like to get some opinions on the 2 above mentioned turbos (i.e HKS2835ProS & GCG GT3040R) relative to each other. I was pretty much set to go ahead with the GT3040R on my RB25DET, but after several conversations I've had with a few different people this week, I'm now totally undecided again... To give some backround, I currently have the following mods: PFC, EBC, FMIC, 3" turbo back exhaust w/ hi flow cat, K&N panel filter & HD Clutch I've also purchased the following parts in anticipation of my turbo upgrade and have them ready to go on the car: Nismo 555cc fuel injectors, Bosch 040 fuel pump, Z32 AFM & HKS Adj Ex Cam Gear (not essential, but thought I'd might as well give it a go). If I purchase the 2835ProS (w/0.87 turbine housing) from Nengun, i'm looking at around $2900 (incl 3% duty + gst). If I purchase the 3040R (w/0.83 turbine housing) from GCG, i'm looking at $1710 (w/SAU discount) + $990 for a manifold + $585 for ext wastegate. Total $3285. I'm assuming that I'll need to get oil and water lines etc made up regardless of which turbo I go for. I also assume that I'll need to get both the intercooler and exhaust piping plumbed up to the new turbo as well. As for a goal, I'd be happy with 275rwkw at this stage, but would possibly like to potentially reach 300rwkw if I upgrade cams and/or do some internal work further down the track. I'm also optimistically chasing an 11 sec 1/4mile (on drag radials) and would also eventually like to do some track work at some stage (once I do the necessary suspension/brake mods and oil cooler etc). Basically, my questions are: Is the 2835 capable of safely producing the 275-300rwkw that I'm after? And if so, how much boost will I need to run? If not, what is a realistic power output for this turbo and my given mods? Is the additional response of the 2835 more of a benefit than the larger potential top end of the 3040R? If so, when can i expect the 2835 to come on boost? Considering the additional costs for manifold/wastegate etc on the 3040R, is the 2835 better bang for buck? Or is the higher power potential of the 3040R worth the extra money? Overall, given my goals and intended use for the car, which turbo is the more suitable choice? And last but not least, Is there any other options that I should consider (keeping in mind that I don't want to spend anymore than my current options)??? I understand that most of these questions are opinion based, but that's exactly the information that I'm after. I've done a some searching on the forums and have got fair bit of information for both turbo's, but nothing in a comparitive sense, so I'm keen to hear of people's opinions. Any advice is appreciated. Thanks Apologies for the long post...

HKS2835ProS should get you 280rwkw Otherwise GT3040R for anything from 260-330rwkw depending on your mods.

LOL - you didn't look very hard Around 250rwkw (with supporting mods) is pretty much on the money, although Reedy (I think) has a little over 260rwkw with cams as well if I remember rightly.

You're letting someone else drive your car?!?!? You're crazy! Just kidding...look forward to seeing those results. On a more serious note, I know you low mounted your turbo mass_iv, but for the rest of the guys who are doing this upgrade, did you also low mount the turbo? I had originally planned on using a low mount manifold, but have also seen some nice high mount set ups and I'm curious if there's any particular benefit to doing either...

Just happened to stumble across this on the RTA website...think they were only released recently. RTA Website Have to say they look pretty cool, although they're a rip off (like anything to do with the RTA). Still might considering trading in the blue number plates for some gold or silver ones instead though :lol: :lol: :lol:

It was a shocker of a call and it cost the Swans the match. The umpire should be shot... In all seriousness, it was a pretty entertaining, hard fought match even from the other side of the fence. Just a shame that the result went the way it did...but it'll make revenge all the more sweeter if we cross paths in the grand final Go the Swans!

I haven't started work on my car yet as I'm still trying to decide on where to get the work done...just need to speak to a few more people first before I make a decision (should know by the end of the week). I've basically already got everything to support the power I'm chasing either on the car or in my garage ready to go (other than turbo, manifold, wastegate...and possibly cams?), so it should hopefully be a fairly straight forward process once I get the ball rolling so to speak. Can I ask what size turbine housing did you go for? I'm guessing 0.82... I'll be using the same and I'm expect to start seeing boost around 3500rpm. Also, which GT30 have you used? i.e Is it one of the HPinabox 500hp turbos or one of the GT3040R 600hp turbos from GCG for example. Either way, i'd definately be interested to hear about your results, so let us know how you go once you've got it all completed and tuned. Good luck with it. BTW, I think you may have missed the boat with the drag day...I think it's full up now (unless you got the last spot). If you're keen, I'd be getting your name on the reserve list asap, as there's always 1 or 2 people that may pull out before the day.

If you're looking for someone to blame for the ridiculous price increases, then I think the oil companies are a good place to start. World petrol prices have risen due to reduced production capacity resulting from the hurricane in America, yet local oil companies have passed on those increases to motorists here despite the fact they haven't even absorbed the price increases themselves as yet. ...greedy bastards See SMH article here

Have you entered the drag day yet? I believe there's only one spot left if you haven't... I'm curious to see how your car runs. I'm also going down the GT30 route and should have it complete for the drag day, so it'll be interesting to compare how our car's perform

True, Pizzonia did finish ahead of Webber - but it's not really an ideal comparison as Webber had to pit at the end of the first lap to replace the nose/front wing assembly on his car after hitting DC in turn 1.I think you'll find that Webber's race pace was a fair bit quicker then Pizzonia's during the race. He caught DC very quickly and put a big gap on him once he got passed. He also caught Sato and pulled away once past him as well. I recall Mr Crompton actually mentioning that Webber's lap times were consistently amongst those of the top 5 when he wasn't in traffic, therefore I think it's safe to assume that he would've finished ahead of Pizza Boy if he had a trouble free run. That being said, Webber always seems to find himself running into other guys these days...admittedly, not all his fault, but perhaps he needs to revise his driving style a little just to keep himself out of trouble.

Also feel sorry for Kimi... Puts the car on pole with a very heavy fuel load Then has to change the engine and start from 11th Then gets stuck behind the F1 moving chicane that is JV Then finally works his way up to 3rd after 1st round of stops Then gets a delaminating tyre, has to pit again and drops to 12th behind JV Then works his way up to 4th and spins as he closed in on Fisi and looses a place to Trulli I know Webber's had his fare share of bad luck, but Kimi must have thrown a black cat through a mirror whilst standing under a ladder as the man is cursed! He's a a country mile quicker than anyone else on the grid, yet still finds himself in 2nd place in the drivers championship...poor bastard!

Not quite, good ol Pizza boy (driving for the injured Heidfeld) got in the points with a decent, but unspectacular drive last night.As per usual, Webber lucked out! He ended up running up DC's arse in turn one after DC clipped the car in front of him which was a bit of a shame as Webber actually had very good pace through the race. Webber's drag with Sato down the pit lane was also quite entertaining. I'm sure Webber would have finished way in front of Pizzonia if he got cleanly through turn 1, so more points have gone begging. Same old story really...

Silv, Find a set of stock 300ZX rims and get the 255/50R16's. I'm pretty sure they'd fit on a 32 (perhaps someone can confirm?). I'm running the same size tyre and rim on my 33 and it fits fine. ido09s, What 60' have you run on the M/T's? I've done a few 1.7's on the BFG's which I thought was fairly good. If you reckon the M/T's are better, then I'll definately be keen to get a set and see how they go once I do my turbo upgrade (which will be in time for the next drag day )

One off special price, or always available price??? I've got a set of BFG drag radials for the moment, but may be interested in buying the MT's and keeping them for when the BFG's are finished. Without doing any proper research, it sounds like a bargain to me

I'm pretty sure that Rocket Industries stocks Mickey Thompson tyres. Didn't realise that they're only $250 though I don't know why, but I always had the impression that they were up around the $400 mark (comparable with the BFG drag radials). If they're only $250 a pop, then that's very good bang for buck as you'll easily cut tenths off your time using them compared to average street rubber.