Jump to content
SAU Community

Recommended Posts

What is the formula to achieve 400rwhp?

My injectors (also stock items) were at 72% duty at 250rwhp on 0.8bar boost. I've been told by my mechanic not to run more that 1.1bar boost through my high flowed turbo (R33) because of my internals. 300rwhp would be nice if I knew how to reach it.

Mark

  • Replies 335
  • Created
  • Last Reply

Top Posters In This Topic

I got to 296.9rwhp on the stock turbo, so all 300 requires is an upgrade turbo.

I'm using a GT30 500hp turbo on mine, Wolf 3D, Greddy plenum, R34 GTR intercooler on mine, but there are plenty of other setups that will give you similar power, a good tuner is a must.

Pauls car was one of many cars being set up for a Dyno comp to run on another Dyno so i would have to be stupid to jack up the power when its about to run in front of hundreds of people on a different Dyno.My Dyno was calibrated less than one month ago.

At our test day ( the day we got 411 out of Pauls car) we also had near standard GTSs making less that 200rwhp.If you use a very good pump and rising rate fuel reg plus a good ecu you can feed the samesort of power on stock injectors but use standard pumps and you will struggle to feed 300.We will get Dyno Dynamics to prove this car and post the results but it is really making 411rwhp, ask any sucker thats been silly enuff to go for a ride.

Originally posted by GTS-t VSPEC

JimX, I wasn't disagrreing with you there, just saying that most of the dyno's we (SAU WA) tend to use in WA are the accurate ones, and we leave the high reading ones to Silvia owners who need all the help they can get:D

i DEMAND you take that back.. :shake: although im in qld.. i dont really care about dyno readings at the moment.. my car is pretty much stock.. 4.3 diff gears and exhaust (std dump) oh and its rb20.. i ran a 14.0 with an apparent 220.5 hp reading (this was with 1.0bar boost) in shootout mode at what i am lead to belive was subzero's dyno.. i know there is a lower time in my car because i used sh*tty tyres, screwed my start up and had axle tramp.. i think the best way is to find your mate with the power on the street and go from there.. but then again its illegal.. so organise something.. meet in the middle of aussie and use rolling starts.. then no one can blame sh*tty starts.. yea well i forget what the whole point of writting something was.. but just because you have all this wonderful power doesnt mean youll run a good time.. maybe a dyno is the only way to tell..

rbs13, I was only have a tease of all my mates with Silvia's, it's an on-going rivalry. I think there great cars, and the power to weight is in your advantage. I was beaten on the day I got 411 by a Datsun 1600 with an SR20 pumping out 433rwhp, so I have much respect for the engine:D

MRK25T, I don't recommend pushing the stock turbo as hard as I did to get that sort of power, but I was planning on replacing it anyway, so we upped the boost. With an aftermarket turbo you should be able to make 340rwhp easy on just over 1 bar, if your not then something isn't working right.

Originally posted by GTS-t VSPEC

MRK25T, I don't recommend pushing the stock turbo as hard as I did to get that sort of power, but I was planning on replacing it anyway, so we upped the boost. With an aftermarket turbo you should be able to make 340rwhp easy on just over 1 bar, if your not then something isn't working right.

I've got a high flowed standard R33 turbo along with the stuff you have on your car (I have a powerFC though) and tuned at .8bar it only managed 252rwhp. I asked if it could get anywhere near 300 if I increased the boost to 1.1bar and they said youd be lucky to get 280. The car seems to be holding back.

Originally posted by Hicks

Thats terrible. I'd be taking my car elsewhere, Mrk25t.

Indeed Hicks.

I've got a Z32AFM now (standard was maxing out) and i'm just thinking about getting a HKS2530 turbo to replace my high flowed one. I've never been to unigroup (or whatever the place is called) but from feedback on this forum they seem to be quite good.

Maybe I should get my car checked out by them first with a list of recommendations of what to fix/replace. Getting the car tuned is expensive :)

Originally posted by Steve

Mark, do you have cooler and exhaust?  Cos the power you are quoting is below what the stock turbo is capable, so I dont know where whoever sold you the turbo gets off calling it a high flow.

- somethiing is just not right there, sorry to say.

3" HKS catback exhaust + hi flow cat and front/dump pipe (probably no-name brands).

FMIC I think is Micks metalcraft

I also have regulator, pump, profec b, powerfc, clutch, adj cam sprocket (which wasnt touched in the tune), non ball bearing high flow standard R33 turbo, pod filter.

A good manifold will help, but I think you need to get the set up you have sorted first (thats what I would be doing) as you 'should' be getting alot more.

To give you an idea, I took my car to morpowa (here in SA) after having a tune and not being 100% happy. He (martin donnon) got me an extra 26rwkw, with no increase in detonation, and better idle and part throttle response.

He asked me what setup I had, told me what sort of power I should be expecting and low and behold, thats what I got.

Having someone who knows what they are doing makes a huge difference - bit like Steve SST and his wolf ecus :)

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Hey was wondering if you ended up installing the R33 GTR speed sensor - I found one too and wanted to confirm it's a direct swap into the R34 6 speed?
    • After 23 years of owning a Skyline, finally had the latch go.  Followed this guide,  works like a dream again. Great Guide 👍
    • Hi all,   I’ve got the biggest lot of problems with my R33 GTS-T   It was a freshly rebuilt 25th anniversary RB25DET (plastic cas, neo cams) probably 6 years ago now   The engine was running so well but I fkd up badly and trusted someone I’d known for 10 years that was well known around Plazmaman for his welding and fab work. I added a lovely photo of some of his previous work. Not sure why my car was worked on by whoever did this shit     I’m normally someone who would never open myself up to something like this, I still can’t believe I did it. Trusting him literally fkd it all up for me. Everything has been a struggle, like it’s almost been 6 years that’s how much I’ve just on and off been trying to work it all out.    All I wanted was a car that danced down low, like full boost from around 3~3500rpm to redline, don’t really care what power it puts down (if it ever does) but I just wanted it to be quick to get on it.    He recommended the turbo to get, I picked Hypergear but he told me to get the front 4” with a T4 and 0.68 rear housing.    I was expecting all these beautiful welds, tidy fab work and paid for it to be ready to go to a tuner when I got it back.    I got a car back that was an absolute mess, I actually couldn’t believe it was my car anymore. I don’t think you could even call what he did welds, they’re disgusting.    So I stripped everything he touched off it and with every bolt I loosened it just got worse and worse.    I covered it and literally built and finished another car in the meantime but now it’s getting to the point where I really want my Skyline back.   Its a struggle because I paid him to do all this shit because I didn’t know how to and now I’ve had to try and figure it all out omg    Please excuse the bird shit horrible welds, I’ve got my show pony car and am so beyond dealing with this car I don’t even really care at this point.    If someone told me about what he did to my car I wouldn’t have believed them but it happened to me. It was unbelievable. He went missing, my car went missing, it came back missing parts, the straight af chassis rails bore the scars of being dragged up a trailer backwards, even the sandwich plate was bent. Everything was leaking and open to whatever fell into it, rounded off/ missing bolts, power steering oil and coolant everywhere, no gaskets, parts stolen off it, even managed to damage the sump pan.   Promised me he’d finish the car, knew what it meant to me, I paid him thousands and thousands just for him to trash it. He told me he was fully licensed and insured, come to find out he’d cancelled his ABN, so obviously no insurance. I had laid up insurance on the car and would’ve been covered but I was scared they would’ve written it off or because the business was no longer trading I’d still be liable.    He was supposed to:  New fully custom mild steam pipe exhaust manifold with turbo location moved from factory position to high forward mount. (I don’t know if it is a mild steam pipe, I’ve got a funny feeling the waste gate isn’t in a very good position and I don’t think the outlets off each cylinder are equal) 4” custom stainless steel dump with external gate (he re-plumbed it) Cut and shut OEM intake manifold with throttle reposition (I ended up doing the throttle reposition) Box in pod filter (left out) New 100cel catalytic converter (pretty sure it’s there but unsure if it’s 100cel) Front mount intercooler piping fabricated to suit (all smashed up and rusty holes where he was supposed to make it look standard where fmic piping passes through. I don’t even think my front bar is going to fit 🙄) Custom 5” intake pipe from pod to turbo (didn’t come with it so had to do something to make it work with the Z32 afm)   Engine: Full cylinder head service & machining  Brand new valves Precision upgraded spring kit Engine block honed New bearings  New piston rings  New ARP conrod bolt kit New ARP head studs Cometic head gasket VRS kit   ATR43SS2 ball bearing turbo 0.68 rear housing  Turbosmart 45mm external wastegate (got delivered to the fab bloke, I’ve got no idea what spring is in it, I’m assuming the one that came pre installed) Walbro 260 fuel pump  Nismo 740cc injectors (tested to 880) Spitfire coil packs GCG FMIC RB25DET manual 5 speed 4:11 rear diff   I’ve got an Apexi Power FC in it atm, I was hoping to just get it to operating temp to make sure everything was okay before towing to a tuner but it’s over-fuelling too much. I don’t think that’s going to happen so i think I’m going to get either a Link G4 or Haltech for it. What do you guys recommend? I can’t work out the power FC so just gonna give up on that one     It’s got an exhaust leak coming from somewhere I can’t see 🙄    The fuel pressure was steady but now it like drops from 40 to 20psi randomly (noticed this yesterday)    I’ll attach pics of the shit he put on my car and the engine bay now as it sits    I really just need some help, I need a tuner in Sydney I can trust, I’d like to be with the car while it’s being tuned if possible, I know it looks terrible but unfortunately I’ve just got to put up with it for now and fix the cosmetic stuff later   Do you guys think the manifolds are going to be okay? Or do I throw the exhaust manifold and try again?   I don’t even think these combinations are going to work tbh   I know everything I fitted was rated to be able to take at least 400kW but most rated higher    If you’ve gotten this far I really really appreciate it 🙏 I don’t mind if you trash me or the car, I made a rookie error and f**k I’ve paid for it. As you’ll see 🙄  
    • From everything I’ve heard you’ll be waiting a long time for  the parts to arrive 
    • Have you looked at the workshop manual?
×
×
  • Create New...