Ryan.G Posted August 29, 2007 Share Posted August 29, 2007 Ok after going through some of the maps and logs this morning of all the different single supra’s I have mapped It seems the results vary quite abit from turbo to turbo. I will mainly keep my results around the t67 and gt4088 as these 2 turbo’s seem the favourites at the moment. DAF GT4088 | 0.81 AR housing (Ryan.g)- Makes full boost (1.4bar now ) in 6th by 3550rpm and at 1.4bar @6000rpm is running 82% injector duty on sard 650cc injectors (stock FPR) (Air temps were 41c when logged) Seems laggy but flows well at top end, made 503bhp@fly at 1.18bar. 650 / 82% = 533 bhp @6k (estimate using a lambda of 0.8) GARETT GT4088 | 0.81 AR Housing (b’have) – Makes full Boost (1.4bar) in 6th by 3100rpm and at 1.4bar @6000rpm is running 83% injector duty on sard 650cc injector (Stock Fpr) (Air temps were 40c when logged) Seems better spool and midrange and still flows more than the DAF gt4088 at top end. 650 / 83% = 539 bhp @6k (estimate using a lambda of 0.8) Boostlogic T67 Dbb | 0.68 AR (think) Housing (Homer) - Makes full Boost (1.4bar) in 6th by 3100rpm and at 1.4bar @6000rpm is running 68% injector duty on precision 800cc injector (aeromotive fpr 38psi I think) (Air temps were 42c when logged) Seems good spool and midrange and Flows the most at top end so far. 800 / 68% = 544 bhp @6k (estimate using a lambda of 0.8) DAF (think) GT4088 | 0.96 (think) AR Housing (Jake) – Makes Full Boost (1.4bar) in 6th by 3780rpm and at 1.4bar @6000rpm is running 71% injector duty on precision 800cc injector (aeromotive fpr 38psi I think) (Air temps were 35c when logged) bit slower with spool than the DAF 0.81 gt4088 but flows alot more at top end. I remember jakes car pulled insanely after 5000rpm on my bum dyno . Looked the nicest too 800 / 71% = 568bhp @6k (estimate using a lambda of 0.8) Just to add at 6700 rpm the injector duty was at 74% cycle so this car should be around 590 bhp If any of the information above with regards specs are incorrect let me know and I will edit Also tomorrow morning I will look at the logs of the t51 and see how they compare as seems a lot of people are interested in this turbo Ryan. Discuss Link to comment Share on other sites More sharing options...
Class One Posted August 29, 2007 Share Posted August 29, 2007 Will cams have an effect on those readings? If so, have they been taken into consideration? Link to comment Share on other sites More sharing options...
Pig Posted August 29, 2007 Share Posted August 29, 2007 Why would there be so much difference in lag on yours and charlies? Seeing as the A/R's are the same size. Please excuse my ignorance. Link to comment Share on other sites More sharing options...
Thorin Posted August 29, 2007 Share Posted August 29, 2007 DAF? I wasn't aware there were different makes of GT4088 Link to comment Share on other sites More sharing options...
Ryan.G Posted August 29, 2007 Author Share Posted August 29, 2007 all those specs are stock cams apart from jakes which is also vvti but thought I would throw jakes into the equation as don't think anyone else runs a 0.96 Link to comment Share on other sites More sharing options...
Wez Posted August 29, 2007 Share Posted August 29, 2007 I am pretty sure me and Darryl were not seeing full boost at 3100rpm on Monday, I cant recall 100% maybe Darryl can. Link to comment Share on other sites More sharing options...
Ryan.G Posted August 29, 2007 Author Share Posted August 29, 2007 The garrett version seems to be completely different to the daf but some of turbo gurus will tell more I'm sure Link to comment Share on other sites More sharing options...
Ryan.G Posted August 29, 2007 Author Share Posted August 29, 2007 I am pretty sure me and Darryl were not seeing full boost at 3100rpm on Monday, I cant recall 100% maybe Darryl can. Take it that was going by daryls rpm counter if so its wrong, Daryl knows that, he would change at what he thought was 6800 on his counter when mapping and I would be seeing 6600 on ecu. Ecu is always right as its getting it directly from the Ne signal from crank. Link to comment Share on other sites More sharing options...
Thorin Posted August 29, 2007 Share Posted August 29, 2007 Take it that was going by daryls rpm counter if so its wrong, Daryl knows that, he would change at what he thought was 6800 on his counter when mapping and I would be seeing 6600 on ecu. Ecu is always right as its getting it directly from the Ne signal from crank. All Supra's are like that, over-read on the rev counter by 200-300 RPM at the redline. Link to comment Share on other sites More sharing options...
Homer Posted August 29, 2007 Share Posted August 29, 2007 That makes for some interesting reading. It's great to see some real world figures though Jakes has uprated cams and I think the other cars are all on stock ones. I also think he has the Garrett 4088, not the DAF one. And yes, my rev counter is very inaccurate. It hits the limiter at an indicated 7300rpm, but we know this is only 6800 rpm. This is worse than on other Supra's I've seen. Link to comment Share on other sites More sharing options...
Kim1978 Posted August 30, 2007 Share Posted August 30, 2007 great info! Can't wait to see the numbers of the t51 tubby.. Link to comment Share on other sites More sharing options...
Gaz Walker Posted August 30, 2007 Share Posted August 30, 2007 Good info there Ryan, I wouldn't have expected that with Jakes car, even with the larger housing. Very interesting Link to comment Share on other sites More sharing options...
Ryan.G Posted August 30, 2007 Author Share Posted August 30, 2007 Ok here are the details for the T51. HKS T51 kai | 0.96 AR housing (i think) (Mr Keef)- Makes full boost (1.4bar now ) in 6th by 4080rpm and at 1.4bar @6000rpm is running 73% injector duty on 850cc injectors (stock FPR) (Air temps were 41c when logged) Is laggier than all the others but when this bad boy comes in you know it. With a set of aftermarket cams i recon this car would be a 700hp car 850 / 73% = 620 bhp @6k (estimate using a lambda of 0.8) Link to comment Share on other sites More sharing options...
Ryan.G Posted August 30, 2007 Author Share Posted August 30, 2007 Good info there Ryan, I wouldn't have expected that with Jakes car, even with the larger housing. Very interesting His car did pull very well and is abit more to come at top end but im sure i will see him soon and maybe were dyno it at same time Link to comment Share on other sites More sharing options...
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