Lukas 33

AH ok yeh 26 are fine for rev's compared to the 30. Yeh if you could please find out that would be lovely. Disco - I had a 3076r 0.82 for the car when it was to be a 25 but changed up to the 3582r 0.82 when i decided it would be a 25/30. Thought the 3076r would be a little too small and too lightswitch for the 30. I was told the 3582 on a 30 would be like a 3076 on a 25. Hoping so anyways. How would you rate the difference in spool time, etc etc (mainly everything you personally can think of) between the T3 1.06 gt35r and the T4 0.84 TS t04z

HAHAHA Yeh well true. Is your 32 gtr a 26 or 26/30? What is your redline? What rear housing do you have on the turbo?

HAHAHA Stock internal 25 on 2.5 bar......harden up phil. He is not joking about everything being braid either. He has braided electrical wiring going to the ceiling light. He has even made a steering wheel cover out of braid. Rumor has it that he has redone all the plumbing in his house with braid.

I didn't say it won't see a track I just said it hasn't yet. No it probably doesn't need 400kw and I might not even do this depending on how the 0.82 gt35r goes with a better exhaust. I was just throwing around some thoughts and getting other peoples ideas if maybe they were considering it aswell. Although if this is a "need" it thing they I guess I don't need more than 70kw to drive around town and I should buy myself an exel...........f**k THAT lol I might go for the occasional run down the strip against a mate or just have a go around the little track we have here but this definately isnt a purpose built race car. Just thought it would be good to have street power on 16 and then strip power on 22 or something. I don't know any more. What do you guys rev your rb25/30's out do? Just so I can ponder some more. PS: Sorry if that post sounds grumpy, I just woke up.

HAHAHA YES!!! i was going to point that out but thought I should keep my serious hat on. Then you went and did it Top work Yeh well after your line busting like that Phil Im surprised you didn't recommend it, Must admit though it does make you engine bay look the sex. Yeh I have a Profec B Spec II aswell and its about 20cm from cooler pipe to solenoid. So its very short. So as long as its long enough to fit in the gap but not too long as it doesn't get pressurised/hard quick enough AND as long as it is thick enough. It should hold any load/boost without spiking nicely

Hey man. Here is some copy pasta from wiki. The URL http://en.wikipedia.org/wiki/Nissan_RB_engine Bore and stroke All Nissan engines follow a naming convention, identifying the engine family (in this case, RB), displacement, and features present- see the list of Nissan engines for detail. The stock dimensions for the RB engines; RB20 - 2.0 L (1998 cc, bore: 78.0 mm, stroke: 69.7 mm) RB24 - 2.4 L (2428 cc, bore: 86.0 mm, stroke: 69.7 mm) RB25 - 2.5 L (2498 cc, bore: 86.0 mm, stroke: 71.7 mm) RB26 - 2.6 L (2568 cc, bore: 86.0 mm, stroke: 73.7 mm) RB30 - 3.0 L (2962 cc, bore: 86.0 mm, stroke: 86.0 mm) ________________________________________________________________________________ __ Where have you looked to find only those sizes? Im not an RB20 person so don't quote me on anything. Like I said, straight copy pasta from wiki

Did Paul tune your car? Is that the Twin scroll or just a single entry? Have to let me know how responsive it is etc

You're right I should pull out the motor and rebuild it all again? Is it so bad that I don't want to rev the f**k out of the motor? It is all balanced etc I just don't really want to rev the f**k out of it. Ive never even seen the rev limit in my car EVER. I will see how the car goes rev wise with this tune. Maybe I will put the limit at 7500. I was just thinking 7000 as I don't want to have to wait so god damn long if I had to rebuild again. I just kind of wanted this motor to last longer than 4 weeks. A build takes quite a while being a pov ass uni student. Is the extra 500rpm that big of a difference? It only a street car. It has never seen a race track or a drag strip ever.

Twin wastegates isn't too pricey at the moment either. Two Tial 44mm Wastegates delivered to me for $850

Dont say that, it will get to his head. Soon he will have you putting braided everything everywhere!

I was more worried about the motor having issues with revs. Isn't revs what kills oils pumps etc? If the band is between 3500 and 4000 that seems to be about where he gt35 is with a 0.82. Saliya - Cheers for all the info, very helpful. I had a browse through the rb30 dyno read outs and didnt see too much in regards to t he TS t04z. I will have another ponder around when I get some spare time Cheers

Yeh ok I see what you mean now. I thought you meant something else at first :S Well 16 would be the lowest boost setting and I would just use my EBC to get me up to about 22 psi O ok righto I thought twin gates was the shit? Well like I said this is me just pondering for now I havent completely made up my mind Sweet yeh ok that makes a bit more sense now. I wouldnt want to go much more than about 420rwkw anyways as I dont want to push everything too far. I was told by something that the 0.84 would be too restrictive haha clearly they are clowns. I dont think I would want to aim for the 1.00 TS housing as it would be just that little bit more laggy. How easily do you think the 0.84 TS would spool in comparison to a GT35R with a 1.06? Just that my choices would be go the 0.84 TS or get the GT35 1.06. I know this has been covered a couple of times but I was just wondering if you yourself have used the both? So you think twin tial 38mm gates would be fine? Would it be better to play it safe and go a little bigger than 38? Ok firstly that is one FCUKING HOT exhaust manifold. OMG I love it!!! And back on track...Yeh I wouldn't really want to go beyond 450rwkw or anything silly like that. I also wouldn't want to rev past 7000. Would the 0.84 be responsive enough that I wouldnt have to rev the shit out of to get somewhere? How much power can the TS 0.84 t04z actually make? I wouldnt want to be struggling to make the 420 thats all. Alright I better head off and do some work Cheers

O ok I thought there was a wastegate for the front three cylinders and another for the back three. I dont know though haha thats why Im asking

Hey guys I am just sitting here at work browsing sau and started to ponder about what it would be like having a twin scroll t04z on my car. I dont plan on doing it right now or anything so its nothing urgent. Was just wondering if anyone could share some advice. If I wanted to see about 420rwkw with a twin scroll t04z at about 20 - 22psi would I need the .84 or 1.00 twin scroll rear? Also I was looking into twin wastegates aswell. How would you go about chosing wastegates? I am fine with chosing one for when you are using only one wastegate but is it any different? If you wanted a minimum of 16psi would you get two wastegates of 45 - 50mm and have eqaul spring pressures of 16psi or would you get each wastegate a spring of 8psi. And would you need two 45-50mm wastegates or because you have two of them would twin 38mm ones be fine? Sorry to be a pain but I would just like to know and my search of the forum didnt unveil too much Cheers Lukas

I am thinking of going a t04z in the future and maybe making about 400rwkw. Do you think a 3.5" will still be ok or should I just do the t04z and 4inch turbo back at the same time? Cheers

Ah yep cheers $195 each from Insight Motorsport

Hey guys I am just after an empty RB25 NEO fuel rail from a 34. PM me if you have one you don't want. Cheers

So how much for just rail if old mate buys just the injectors?

Hopefully he will as I am keen to buy just the fuel rail

What are the rest of your mods? Just so we dont have to list things and then you say "yeh I have that". Just so its all visible

Ok I just went to buy a set of the Injector Dynamics 1000cc injectors online and I cant find somewhere to buy them that will deliver to Australia. Obviously I must be looking in the wrong spot :S Any help? Cheers

HAHAHA Yessssssss yeh I think I am just going to get one fabbed up after the christmas and new year break and when I have some more moneys laying around. Might get a new manifold, bigger rear housing (depending on response and power output) and then get the exhaust done at the same time. Depending on how much extra money there is I might go for some new cooler piping and throttle body at the same time. Ah well time will tell. R31nismoid - Yeh I dont really want anything hanging too low. Ive driven too many cars where every speed bump and driveway is "fcuk am i gunna scrape am i gunna scrape...shit!". I would like it tucked up nicely but being 4" I will have to see how much they can do Almost home time! 9 mins till knock off time

Ok um...but what cams do you have. As in what camshafts 2.25" is bloody small! I think my exhaust is going to be too small for the 25/30 with a gt35r so 2.25 is pretty small. I know you say the pressure test said 2psi but I still think you should just drop the exhaust and measure the power output. Please

Yeh I have taken basic fluid mechanics and thermodynamics at uni but there is no way in hell im going to be doing those calculations! Well we will do a run with the 3" and do a run with it dropped before the cat and see the difference it makes I would LOVE the bigger exhaust but there is always a trade off. Have the car only make 300kw with the 3" so I can drive the car home to see the family at xmas time OR put the car in for a 3.5 or 4" exhaust and catch a bus home to see the family while the car is being done.....anyway it all comes down to the test. Which reminds me I had better give the mechanics a call. Cheers

Well I dont know. I thought if if the turbo was 3" outlet and I had a 3" dump, hollowed out cat and the rest was all good to flow fine then it would be fine. But I have been reading and apparently it is better to have a greater pressure difference on either side of the turbine. So if I had a 4" exhaust the exhaust gas will want to go from high pressure to low pressure (ie Manifold to dump pipe) faster than it would if I had a 3" exhaust. As there is a greater pressure difference. This in turn would obviously reduce spool time and free up top end power. DO NOT QUOTE ME ON THIS. This is just my basic understanding of why you would go to something so huge. My question to everyone else is. Will I be able to still make about 320rwkw on an rb25/30 with type a poncams and a gt35r 0.82 rear with a 3" exhaust?