JamieP Posted April 23, 2007 Share Posted April 23, 2007 what ya think? http://www.turbobygarrett.com/turbobygarrett/catelog/Turbochargers/GT40/GT4094R_751470-19.htm Quote Link to comment Share on other sites More sharing options...
Wez Posted April 23, 2007 Share Posted April 23, 2007 Good read here on how to read compressor maps. http://forums.bimmerforums.com/forum/showthread.php?t=258035 Quote Link to comment Share on other sites More sharing options...
Stevie Boy Posted April 23, 2007 Share Posted April 23, 2007 Good read here on how to read compressor maps. http://forums.bimmerforums.com/forum/showthread.php?t=258035 Thanks for melting my brain there Wez, intrigued that thread was on a Bimmer forum. When he stated VE of engines 90% etc does that all still apply when VE's of an NA engine will differ to a forced induction/low compression engine surely. Or i guess compression ratios don't even effect VE's. I'll have a re-read when i'm not so tired! Quote Link to comment Share on other sites More sharing options...
JamieP Posted April 23, 2007 Author Share Posted April 23, 2007 Hmm looks like this tubby is a bit to big for me. Quote Link to comment Share on other sites More sharing options...
Wez Posted April 23, 2007 Share Posted April 23, 2007 Thanks for melting my brain there Wez, intrigued that thread was on a Bimmer forum. When he stated VE of engines 90% etc does that all still apply when VE's of an NA engine will differ to a forced induction/low compression engine surely. Or i guess compression ratios don't even effect VE's. Just an example, there is a much better thread on here which I just found. http://www.mkivsupra.net/vbb/showthread.php?t=91339 Quote Link to comment Share on other sites More sharing options...
Stevie Boy Posted April 23, 2007 Share Posted April 23, 2007 Just an example, there is a much better thread on here which I just found. http://www.mkivsupra.net/vbb/showthread.php?t=91339 Thanks Wez, should make some interesting reading. Thought i knew everything i needed to know bout turbo's but as they say knowlege is power so maybe i can gain a few horses from it! Jamie your not happy unless your turbo shopping are you! Your like my misses and her shoe and handbag obsession! "What was wrong with the ones you just bought dear!":d Quote Link to comment Share on other sites More sharing options...
Nic Posted April 24, 2007 Share Posted April 24, 2007 Jamie are you going for the DBB turbo this time? Ian C posted a good thread with some datalogging comparing BL67 and BL67DBB a while back, showing signicant gains by fitting the DBB version. Quote Link to comment Share on other sites More sharing options...
JamieP Posted April 24, 2007 Author Share Posted April 24, 2007 Jamie are you going for the DBB turbo this time? Ian C posted a good thread with some datalogging comparing BL67 and BL67DBB a while back, showing signicant gains by fitting the DBB version. Maybe, was them turbos that Ian was comparing not different size's? Im not buying anything till ive tried out Ash's HKS T51RBB as this tubby was my original plan and is why i went to town on the engine build. Quote Link to comment Share on other sites More sharing options...
Flip Posted April 24, 2007 Share Posted April 24, 2007 How about this one? Jamies New Turbo Quote Link to comment Share on other sites More sharing options...
AlanM Posted April 24, 2007 Share Posted April 24, 2007 How about this one? Jamies New Turbo Could be a bit laggy Quote Link to comment Share on other sites More sharing options...
AshBhp Posted April 24, 2007 Share Posted April 24, 2007 ;Im not buying anything till ive tried out Ash's HKS T51 Kai BB as this tubby was my original plan and is why i went to town on the engine build. You be grinning like a dog on heat or a fella having a spitroast. Quote Link to comment Share on other sites More sharing options...
Alex Posted April 24, 2007 Share Posted April 24, 2007 Maybe, was them turbos that Ian was comparing not different size's? No, it was a T67 .68 vs a T67DBB .68. Quote Link to comment Share on other sites More sharing options...
Ian C Posted April 24, 2007 Share Posted April 24, 2007 In fact I didn't even bother swapping the housings, just the core, how similar d'ya want it -Ian Quote Link to comment Share on other sites More sharing options...
JamieP Posted April 24, 2007 Author Share Posted April 24, 2007 No, it was a T67 .68 vs a T67DBB .68. Ok thanks. Quote Link to comment Share on other sites More sharing options...
JamieP Posted April 24, 2007 Author Share Posted April 24, 2007 You be grinning like a dog on heat or a fella having a spitroast. Hehe, cant wait:D Quote Link to comment Share on other sites More sharing options...
Stevie Boy Posted April 24, 2007 Share Posted April 24, 2007 How about this one? Jamies New Turbo Quote Link to comment Share on other sites More sharing options...
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