help Posted March 16, 2004 Share Posted March 16, 2004 Hey Guys, I have been around these forums for ages, but never joined so sorry about my first post being so big. I have a 96 gts-t with a rb26 single turbo conversion. The problem is that it is not making the power that I think it should for the money I have spent. Also I have a problem with boost control, my car seems to run stupid boost and make no power. There are talks that the wastegate is to small. The car has made 330rwhp at 22 psi with the following (see below). The car made 210 rwkw at 8pound at 5000 when the motor was being run in so I was expecting big things but at the moment am very disappointed. Am I expecting to much??? Can you see a problem with the build. What would you guys expect the car to make. RNZ11s I raced you when you had the 30/40 setup you might remember my car??? Rb26 Garret 30/40 700hp ball bearing turbo Port and polish – JHH Cam gears Boshe 044 Sard 700cc injectors Wisco forged pistons – Teflon coated Shot peened and linished rods arp bolts HKS Intercooler all piping hpc coated Turbomsmart pro gate 42 m Turbosmart super sonic valve Standard plenum Halteck ek6 Boost control is just a t-piece. Thanks for you help!!! Link to comment https://www.sau.com.au/forums/topic/36406-300rwkw-club-please-read-i-need-youre-help/ Share on other sites More sharing options...
KamikazeR33 Posted March 16, 2004 Share Posted March 16, 2004 ur wastegate seems fine but things to do would be 1. get a better boost controller or even wastegate controller 2. get a decent tune with these to things - mainly the 2nd one u should c it close to 300rwkw easy Link to comment https://www.sau.com.au/forums/topic/36406-300rwkw-club-please-read-i-need-youre-help/#findComment-726346 Share on other sites More sharing options...
raist60 Posted March 16, 2004 Share Posted March 16, 2004 You havent said a word about your exhaust Link to comment https://www.sau.com.au/forums/topic/36406-300rwkw-club-please-read-i-need-youre-help/#findComment-726686 Share on other sites More sharing options...
meshmesh Posted March 16, 2004 Share Posted March 16, 2004 It might help if you could post a dyno readout. I'm no real expert with your particular set up but an RB26 with those mods...wow! I'd be expecting alot more too. Just wondering about the ECU & tune?? Does it run MAP or AFM's? Maybe this calls for Doughboy or SydneyKid....ring ring, brrrr, ring ring Link to comment https://www.sau.com.au/forums/topic/36406-300rwkw-club-please-read-i-need-youre-help/#findComment-726700 Share on other sites More sharing options...
help Posted March 16, 2004 Author Share Posted March 16, 2004 Sorry, I just assumed that would have thought that side of things was taken care of. To answer you're question 3' Apexi Gt. Link to comment https://www.sau.com.au/forums/topic/36406-300rwkw-club-please-read-i-need-youre-help/#findComment-726702 Share on other sites More sharing options...
meshmesh Posted March 16, 2004 Share Posted March 16, 2004 The car has made 330rwhp at 22 psi As a guide, My GTR made 360rwhp or 270rwkw with Stock Motor, Apexi PFC, Cam Gears, Boost @ 15psi, & exhaust. Running stock fuel pump...etc etc wish I could help, love to see your end result sounds like an animal. Link to comment https://www.sau.com.au/forums/topic/36406-300rwkw-club-please-read-i-need-youre-help/#findComment-726709 Share on other sites More sharing options...
Blitz Posted March 16, 2004 Share Posted March 16, 2004 Boost control is just a t-piece. What the......................? Clearly you have spent buckets on a tough rebuild so how could you possibly overlook the boost controller? 1. Get a REAL boost controller 2. Get another tuner. Link to comment https://www.sau.com.au/forums/topic/36406-300rwkw-club-please-read-i-need-youre-help/#findComment-726712 Share on other sites More sharing options...
help Posted March 16, 2004 Author Share Posted March 16, 2004 The problems is I am sick of spending money to recieve the results I am getting. My thinking is spend 700 bucks to find out that it is not a boost problem, does that make sense. So many people have had a look and don't know what is going on. Getting over it. Link to comment https://www.sau.com.au/forums/topic/36406-300rwkw-club-please-read-i-need-youre-help/#findComment-726725 Share on other sites More sharing options...
Guest INASNT Posted March 16, 2004 Share Posted March 16, 2004 Get a HKS EVC 3 or 4, they work the best with external gate. U need to post more info Link to comment https://www.sau.com.au/forums/topic/36406-300rwkw-club-please-read-i-need-youre-help/#findComment-726726 Share on other sites More sharing options...
help Posted March 16, 2004 Author Share Posted March 16, 2004 What do you need to know!!!! Link to comment https://www.sau.com.au/forums/topic/36406-300rwkw-club-please-read-i-need-youre-help/#findComment-726733 Share on other sites More sharing options...
ferni Posted March 16, 2004 Share Posted March 16, 2004 As a guide, My GTR made 360rwhp or 270rwkw with Stock Motor, Apexi PFC, Cam Gears, Boost @ 15psi, & exhaust. Running stock fuel pump...etc etc wish I could help, love to see your end result sounds like an animal. Ditto - 33GTR, same mods minus the PFC and same power help: You need a good tuner Link to comment https://www.sau.com.au/forums/topic/36406-300rwkw-club-please-read-i-need-youre-help/#findComment-726738 Share on other sites More sharing options...
Guest INASNT Posted March 16, 2004 Share Posted March 16, 2004 What do you need to know!!!! post up a dyno graph so we can see whats going on Link to comment https://www.sau.com.au/forums/topic/36406-300rwkw-club-please-read-i-need-youre-help/#findComment-726740 Share on other sites More sharing options...
Steve Posted March 16, 2004 Share Posted March 16, 2004 Hmm, seems wierd. I would be looking at your exhaust side, as already mentioned. If you are winding more boost in, with little return, it sounds like back pressure to me, or the turbo is well out of its efficiency range. If its a 700hp turbo, I think I would be correct in assuming the turbine AR is reasonably large, so I doubt any restriction is there. try dropping the exhaust and take the car for a quick squirt (or better still put it on the dyno) - takes only a few minutes to drop. You do run a 'racing' cat dont you? I had a nismo exhaust, that started choking the car at around 285rwkw, changed to a super dragger and made boost alot earlier, and got alot more top end - now making well over 300rwkw (on a 480hp turbo:) sorry just had to throw that one in:p) take a good close look at your bov too - I have seen those turbosmart supersonics leak like a sieve, try putting you hand over the oulet whilst at idle. If it is leaking, you may still be making boost, but the car will be alot more lethargic off boost, and ramp slower onto boost instead of hitting hard. Link to comment https://www.sau.com.au/forums/topic/36406-300rwkw-club-please-read-i-need-youre-help/#findComment-726788 Share on other sites More sharing options...
help Posted March 16, 2004 Author Share Posted March 16, 2004 Steve, If "racing" is hollow then answer is yes. Then only reason I changed valves is cause apparently the apexi one I had was leaking to. Valves are annoying to say the least. I am not so much winding more boost in it just does what it wants, we got it a bit lower 18 pound and moved some of the solinoids for the haltec as my mechanic thought they may be fighting the standard ones for a signal. The car felt a little stronger with less boost. I will try and get a graph sent the guy who tuned the car is supposed to be looking after me cause I did some work for his so I will see what I can get. Thanks for telling me that my car makes crap power when I sought it out you will be the first to see the dyno graph Link to comment https://www.sau.com.au/forums/topic/36406-300rwkw-club-please-read-i-need-youre-help/#findComment-726829 Share on other sites More sharing options...
help Posted March 16, 2004 Author Share Posted March 16, 2004 Is anyone here making over 300KW with a halteck on board, if so did you have any tuning problems/sensor problems. What are you guys using computer wise to make good power. Link to comment https://www.sau.com.au/forums/topic/36406-300rwkw-club-please-read-i-need-youre-help/#findComment-726899 Share on other sites More sharing options...
Guest INASNT Posted March 16, 2004 Share Posted March 16, 2004 I dont think many cars in aus use haltek, more NZ cars do. Link to comment https://www.sau.com.au/forums/topic/36406-300rwkw-club-please-read-i-need-youre-help/#findComment-726927 Share on other sites More sharing options...
R31Nismoid Posted March 16, 2004 Share Posted March 16, 2004 The problems is I am sick of spending money to recieve the results I am getting. My thinking is spend 700 bucks to find out that it is not a boost problem, does that make sense. but that 700 you probably are well advised to spent IMO. a good controller is probably one of the most important parts. Aside from that... what AR is your Ex housing? Link to comment https://www.sau.com.au/forums/topic/36406-300rwkw-club-please-read-i-need-youre-help/#findComment-726963 Share on other sites More sharing options...
RS500 Posted March 16, 2004 Share Posted March 16, 2004 re: boost control, fyi, a good $30 press. regulator does wonders with an external wastegate when plumbed in correctly. Link to comment https://www.sau.com.au/forums/topic/36406-300rwkw-club-please-read-i-need-youre-help/#findComment-726976 Share on other sites More sharing options...
raist60 Posted March 16, 2004 Share Posted March 16, 2004 I find it pretty hard to believe this is caused by a boost controller I was asking about your exhaust to get a gauge of what manifod / turbine housing you were using. Also with your ECU how much timing are you giving it throughout the maps? Is it pinging? A car isnt gonna make any power with 5 billion pound boost but **** all timing. Need more details. Link to comment https://www.sau.com.au/forums/topic/36406-300rwkw-club-please-read-i-need-youre-help/#findComment-727048 Share on other sites More sharing options...
hungry6 Posted March 16, 2004 Share Posted March 16, 2004 something doesn't seems right there could be anything from a blocked fuel filter to crappy mappings, Things like these take time especially in a conversion when all things are removed and the refitted in best possible way. Link to comment https://www.sau.com.au/forums/topic/36406-300rwkw-club-please-read-i-need-youre-help/#findComment-727060 Share on other sites More sharing options...
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