RS500

### bump ### i'm sure someone out there is after a nice package for their street GTR. turbos have steel wheels so can handle quite a bit of boost unlike the original ceramic turbos. fyi, the same combo has made ~290rwkw on 23-24psi on a R32 GTR.

where r u taking the car to get it checked out? i would recommend going to see Dennis at P.E.T Modifications (9464-4225), he is very competent when it comes to the RBxx engines.

i had the same exhaust wheel in my sierra cosworth with a split-pulse A/R .84 exhaust housing, and it made ~300rwhp on 16-17psi with a wide power range (4000 - 7000rpm) with more potential as the power was still climbing at the 7000rpm limiter. btw, the compressor wheel was a 60-1.

why don't u just go for a A/R .84 exhaust housing? this will help bring the turbo on earlier and still give u the top end (maybe a little short of 303rwhp but not that far off) that u want - hence a broader power band. btw, what spec wheels do u have in your turbo?

SK, check this one out, http://www.skylinesaustralia.com/forums/sh...ead.php?t=32257

Steve, good to hear the good results after all the R&D you've done. good effort. can i ask how much you paid for your A/R .87 HKS turbine housing? Also, do u still have your A/R .61 housing? If so, care to sell it? (PM me if required)

Same as yours nah, it's a Garrett GT30 (700177-0014 core) with A/R .70 compressor & A/R .82 turbine housings.

i got mine aswell and it's in the car getting tuned/boosted as we speak. hopefully she goes alright.

sorry, forgot to mention that they have a shop in Nunawadding also. Nunawading, 27 Metropolitan Ave 3131 (03) 9878 2666

COMPUTER LINE DYNAMIC ALIGNMENTS Preston 44 High St 3072 Ph: (03) 9484 0787

GT3040 my penis!!!! :usuck:

INASNT, what are the specs on your GT3040 ??????

i'll try to make it over this week some time, i'll buzz u when i am free - most likely thurs this week.

INASNT, nice to hear the beast is up and running again with good results. have to meet up pretty soon to check this thing out.

Steve, fyi, if i don't have details/info based on my own experiences, (if i can) i will refer to and recommend anything that i can find on the web, such as the HKS spec sheets for their own turbos. all my comment about the GT2535 was, that i 'personally' wasn't very impressed with it from what i saw, and based on the specs/info from HKS' own website, i would recommend/prefer the GT2540 over the GT2535 as it seemed like it was better suited to the larger RB25 engine.

ahh, bugger, i just spent the last 20mins writing all that crap above for nothing. thanks SK.

Steve, firstly, i am not a salesman and never have been. If i can help someone out with some info that i know of, i will share that with them. yes, i haven't had first hand experience with the GT2540 on a RB25 but I commented on the GT2540 simply for the fact that 'In my opinion I' believe it is better suited to the RB25 based on the information and data/specs which i have seen. Trbs didn't specify his requirements/application for the turbo so i don't know what he wants from it, therefore, i comment on what i would prefer on that engine fomr the info which i read form the manufacturers website. This information obtained by the manufacturer's website is what i use and should be used by all customers as to draw their own conclusions on what the HKS turbo's are capable of and then to make their own decision on what to buy. If u have noticed in many of my posts in the past, i always try to provide specs, websites, etc (which you have referred to also) so that people (out there) can take my comments and use the data to understand more about the topic and to be able to make their own decision so don't go thinking you're some authoritive figure on turbo matching. i do believe that the GT2540 has been found to be laggy in a twin configuration on a RB26DETT, but i believe it is quite well suited to the RB25 as a single turbo, given the larger engine capacity, it wouldn't be laggy at all. My comment regarding the GT2535 on the RB20 was based on what i saw on my friend's dyno, so given that info, it has left a sour impression on me. Maybe the car had problems in the setup/tune which is why it didn't make the power u state, but at the same time, that's what it made, so that's what i told. also, your claim (even though inconsistent - last time it was a RB20) that a GT2530 can make 230rwkw on an RB25 @ 1.2bar is only as valid as my one, as you could be telling figures from a high reading dyno, therefore, we cannot take these comparisons into consideration. That's a pretty hard comparison when your friend is running a RB25 which is 500cc larger than the RB20 that i mentioned. Trbs, my apologies about this, good luck with your decision and hopefully you can use the info in this forum to help u learn more about turbo sizing and specs so that u can understand and know exactly what u need for what u want out of your car. cheers.

Steve, you started again ;-)

steve, lets not start this again. if you read my post properly, you would've seen that i mentioned 250fwkw (flywheel kw) and not rwkw. no i haven't seen one of these on an RB25, and what i have mentioned is what is advertised by HKS themselves. also, i believe the GT2540 might be laggy in a twin configuration on an RB26, but i'm sure they're quite good as a single on an RB25. check the link that i provided for the power curve, it's just as peaky b/w 3000 - 4000rpm (only more powerful) as the 2530 on the RB20.

give my friend Dennis (P.E.T Mods) a call, i'm sure he'll be able to help you out. Ph : 9464 4225 or 0425 799984 let him know that you've spoken to Gorjan (RS500) on the forums.

dude, you have a PM. if u have MSN, send me a message - [email protected]

my friend with an R32 GTS-T made 227rwkw on the same dyno with a Garrett GT25 (400hp core) and this thing halls ass compared to some other GTS' i've seen. if it's for a RB25, you'd want atleast a GT2540 which can make 250fwkw on 1bar. http://www.hks-power.co.jp/products/turbo/...c_gt/ac_gt.html

yeah, i know. i thought it would've made better power than that at that boost.

a guy had one on an RB20 at my friend's workshop and it made about ~190rwkw on ~23-24psi. a friend is selling a HKS GT2540 to suit RB25 if you're interested.

Steve, it doesn't mention anything about the A/R of the comp housing, but i am assuming it's a larger on by the shape of the flow map. also, T04E turbos come standard with A/R .70 comp housings. I could be wrong, but that's what i think.