Russman Posted May 30, 2011 Author Share Posted May 30, 2011 I had the same problem with a 0.82ar gt35, 3.5" exh with a tial 44mm and the gate welded as per Roy's post. The problem & fix are pretty well documented so I'm surprised you weren't made aware by Kyle when making the purchase..... The main problem we had when tuning was massive boost creep at higher rpm. Who is Kyle? Link to comment https://www.sau.com.au/forums/topic/361163-russmans-time-attack-build/page/6/#findComment-5841535 Share on other sites More sharing options...
ahh 33 s2 Posted May 30, 2011 Share Posted May 30, 2011 6boost guy Link to comment https://www.sau.com.au/forums/topic/361163-russmans-time-attack-build/page/6/#findComment-5841605 Share on other sites More sharing options...
Russman Posted May 31, 2011 Author Share Posted May 31, 2011 Ahh I bought it 2nd hand. Link to comment https://www.sau.com.au/forums/topic/361163-russmans-time-attack-build/page/6/#findComment-5841779 Share on other sites More sharing options...
Roy Posted May 31, 2011 Share Posted May 31, 2011 Since its a twin scroll housing and manifold, is the gate plumbed up with pipe from both side of the flange? Link to comment https://www.sau.com.au/forums/topic/361163-russmans-time-attack-build/page/6/#findComment-5842917 Share on other sites More sharing options...
Russman Posted May 31, 2011 Author Share Posted May 31, 2011 Since its a twin scroll housing and manifold, is the gate plumbed up with pipe from both side of the flange? Yep. Link to comment https://www.sau.com.au/forums/topic/361163-russmans-time-attack-build/page/6/#findComment-5843436 Share on other sites More sharing options...
Roy Posted June 1, 2011 Share Posted June 1, 2011 ...What happened to you? You used to be somebody I liked. First the RB25 now SR20 power for this weekend Link to comment https://www.sau.com.au/forums/topic/361163-russmans-time-attack-build/page/6/#findComment-5844012 Share on other sites More sharing options...
Russman Posted June 1, 2011 Author Share Posted June 1, 2011 Haha. You know I'm the same rb20 boy at heart haha. Link to comment https://www.sau.com.au/forums/topic/361163-russmans-time-attack-build/page/6/#findComment-5844035 Share on other sites More sharing options...
CMS Drifter Posted June 13, 2011 Share Posted June 13, 2011 We had a similar issue with our boost control/ gate/ turbo setup. Rb25 HKS 264 exahust cam China intake plenum 6boost t4 twin scroll manifold custom t4-t4 twin scroll adapter gt3076r turbo .86 rear Custom "straight" 3- 3.5" exhaust Started with a 38mm gate plumbed to both scrolls on the manifold and Profec B controller- would control boost well if throttle was open gently, but would creep up with the revs. Would not control at all if the throttle was snapped on Tried changing to a 45mm gate- similar issue.. Changed to an eboost 2.. No problems I think the 38mm gate is a little too small for the rb25 at revs.. I did read that the Profec boost controllers weren't responsive enough for some applications.. What boost control are you using? Link to comment https://www.sau.com.au/forums/topic/361163-russmans-time-attack-build/page/6/#findComment-5862907 Share on other sites More sharing options...
turboedsloth Posted June 13, 2011 Share Posted June 13, 2011 ^same problem as CMS, 38mm tial, profec b, td06 on a std 20. Changed to a TIAL 44mm but didnt change teh boost controller. Still spiked to 14psi but it wasnt as bad as 22psi with the 38mm, Link to comment https://www.sau.com.au/forums/topic/361163-russmans-time-attack-build/page/6/#findComment-5862999 Share on other sites More sharing options...
Russman Posted June 14, 2011 Author Share Posted June 14, 2011 We're just using a bleed valve. No electronics at all because of simialar issues to what you've said above. 6boost is being modified at the moment by ACE. It looks very impressive and we went for a turbosmart 50mm as well. We wanted to go tial but they only make 44 and 60! Should fix it. Maybe dyno time later this week. Link to comment https://www.sau.com.au/forums/topic/361163-russmans-time-attack-build/page/6/#findComment-5865555 Share on other sites More sharing options...
DJRIFT Posted June 14, 2011 Share Posted June 14, 2011 We're just using a bleed valve. No electronics at all because of simialar issues to what you've said above. 6boost is being modified at the moment by ACE. It looks very impressive and we went for a turbosmart 50mm as well. We wanted to go tial but they only make 44 and 60! Should fix it. Maybe dyno time later this week. i hope the turbosmart gate works as they have a horrid reputation for failing. althoe i havent heard any bad things about the latest gen. hows the nerves going leading upto Supernap with a fresh setup? Link to comment https://www.sau.com.au/forums/topic/361163-russmans-time-attack-build/page/6/#findComment-5865802 Share on other sites More sharing options...
ahh 33 s2 Posted June 14, 2011 Share Posted June 14, 2011 pics of the wing!!!!!!!!!! Link to comment https://www.sau.com.au/forums/topic/361163-russmans-time-attack-build/page/6/#findComment-5865814 Share on other sites More sharing options...
Russman Posted June 14, 2011 Author Share Posted June 14, 2011 i hope the turbosmart gate works as they have a horrid reputation for failing. althoe i havent heard any bad things about the latest gen. hows the nerves going leading upto Supernap with a fresh setup? Yeah turbosmart wasn't first choice but it's the only 50mm that would suit. Nerves... Dunno. I'll tell you when I turn in to turn 1 at Phillip Island! haha Might be my only test day although still hoping to have a go at winton also. Link to comment https://www.sau.com.au/forums/topic/361163-russmans-time-attack-build/page/6/#findComment-5865920 Share on other sites More sharing options...
Russman Posted June 14, 2011 Author Share Posted June 14, 2011 pics of the wing!!!!!!!!!! Ok. sneak preview... I still haven't seen it all together. Supports like the one on the right. Had to be beefed up to handle the load. CF Front diffuser and splitter also on the way... Link to comment https://www.sau.com.au/forums/topic/361163-russmans-time-attack-build/page/6/#findComment-5865929 Share on other sites More sharing options...
ssxRicho Posted June 14, 2011 Share Posted June 14, 2011 Looks magic Link to comment https://www.sau.com.au/forums/topic/361163-russmans-time-attack-build/page/6/#findComment-5866181 Share on other sites More sharing options...
Beer Baron Posted June 15, 2011 Share Posted June 15, 2011 are you planning on adding a gurney flap to that wing? if not I'd seriously consider it. Link to comment https://www.sau.com.au/forums/topic/361163-russmans-time-attack-build/page/6/#findComment-5866909 Share on other sites More sharing options...
sav man Posted June 15, 2011 Share Posted June 15, 2011 are you doing anything to the boot lid to stop it from flexing under load? Link to comment https://www.sau.com.au/forums/topic/361163-russmans-time-attack-build/page/6/#findComment-5866953 Share on other sites More sharing options...
turboedsloth Posted June 15, 2011 Share Posted June 15, 2011 We're just using a bleed valve. No electronics at all because of simialar issues to what you've said above. 6boost is being modified at the moment by ACE. It looks very impressive and we went for a turbosmart 50mm as well. We wanted to go tial but they only make 44 and 60! Should fix it. Maybe dyno time later this week. I think Kyle recommends the 50mm gate now as minimum from what my tuner was saying. I don't know whether it was the gate or ebc that was my problem as i've since sold the setup. They are a good manifold tho Link to comment https://www.sau.com.au/forums/topic/361163-russmans-time-attack-build/page/6/#findComment-5867089 Share on other sites More sharing options...
Russman Posted June 15, 2011 Author Share Posted June 15, 2011 are you planning on adding a gurney flap to that wing? if not I'd seriously consider it. No wasn't planning to. It will have adjustable pitch though. are you doing anything to the boot lid to stop it from flexing under load? Yep it will need massive bracing but I'll worry bout that when it arrives. Link to comment https://www.sau.com.au/forums/topic/361163-russmans-time-attack-build/page/6/#findComment-5867795 Share on other sites More sharing options...
Marlin Posted June 16, 2011 Share Posted June 16, 2011 Put a gurney flap on it Russ...... Link to comment https://www.sau.com.au/forums/topic/361163-russmans-time-attack-build/page/6/#findComment-5868175 Share on other sites More sharing options...
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