grahamc Posted August 25, 2007 Share Posted August 25, 2007 hybrids have their limits, but good for the inbetween option... Quote Link to comment Share on other sites More sharing options...
Class One Posted August 25, 2007 Share Posted August 25, 2007 Seems quite consistent actually Doug : RWHP FWHP Drivetrain Loss ---- ---- --------------- Homer 545 460 15.60% grahamc 451 378 16.19% Ian C 565 477 15.58% Supragal 365 304 16.71% SupraWoman 354 287 18.93% Mr Keef 598 504 15.72% Tricky-Ricky 369 308 16.53% Keith C 360 299 16.94% JustGav 221 179 19.00% I guess so, just surprising to see a loss of 85bhp on Darryls, but nice to see what cams can do for the top end. Look forward to seeing the dyno plot of Ian and Darryls. And good figures considering the high ambient temps today as well. Quote Link to comment Share on other sites More sharing options...
Supragal Posted August 25, 2007 Share Posted August 25, 2007 It was HOT. I believe there is some sunburn kicking about! Quote Link to comment Share on other sites More sharing options...
grahamc Posted August 25, 2007 Share Posted August 25, 2007 It was HOT. I believe there is some sunburn kicking about! Darryl? Quote Link to comment Share on other sites More sharing options...
Supragal Posted August 25, 2007 Share Posted August 25, 2007 Quote Link to comment Share on other sites More sharing options...
Class One Posted August 25, 2007 Share Posted August 25, 2007 It was HOT. I believe there is some sunburn kicking about! Darryl? Top of the head? Shame summer is only here for the weekend. Quote Link to comment Share on other sites More sharing options...
Muffleman Posted August 25, 2007 Share Posted August 25, 2007 but nice to see what cams can do for the top end. I was more surprised to see what the 264 cams lose in the midrange compared to the stock cams ! Quote Link to comment Share on other sites More sharing options...
grahamc Posted August 25, 2007 Share Posted August 25, 2007 I did not notice that... Wil see comments when I post my dyno graph... Quote Link to comment Share on other sites More sharing options...
Class One Posted August 25, 2007 Share Posted August 25, 2007 I was more surprised to see what the 264 cams lose in the midrange compared to the stock cams ! Hmm interesting. I know where I'd like the advantage for a road car setup, and that's in the midrange. Quote Link to comment Share on other sites More sharing options...
Muffleman Posted August 25, 2007 Share Posted August 25, 2007 Homer did mention that Ian had a wastegate issue and so may be losing boost - so that might be why tho Quote Link to comment Share on other sites More sharing options...
grahamc Posted August 25, 2007 Share Posted August 25, 2007 apparently missing a crucial piece of the wastegate... Quote Link to comment Share on other sites More sharing options...
Supragal Posted August 25, 2007 Share Posted August 25, 2007 I think there is a washer or a shim missing or something, it's not holding the pressure IIRC. Quote Link to comment Share on other sites More sharing options...
Wez Posted August 25, 2007 Share Posted August 25, 2007 Great work guys, some great results, the T67 looks the daddy turbo Where are the plots? Quote Link to comment Share on other sites More sharing options...
Ryan.G Posted August 25, 2007 Share Posted August 25, 2007 Was good to see ians and homers back to back, the cams deffo do make a good difference. I was impressed with what he has done by himself espically as he drives the car while mapping it also Deffo recommend him for any piggyback work was more surprised to see what the 264 cams lose in the midrange compared to the stock cams ! I think ian said his wastegate seal was leaking so will not help but there was deffo some lose in midrang. I wonder if my trick in daryls map helps while the boost is building with midrange as certainly helps with the spool time. Quote Link to comment Share on other sites More sharing options...
Marty Posted August 25, 2007 Share Posted August 25, 2007 I have 264's in mine and i dont see any loss in midrange? Id say they were much better than stock infact Some good results Quote Link to comment Share on other sites More sharing options...
Wez Posted August 25, 2007 Share Posted August 25, 2007 I thought the 264 setup should give midrange gains as well gains up top. Quote Link to comment Share on other sites More sharing options...
Supragal Posted August 25, 2007 Share Posted August 25, 2007 Wish I hadn't sold all my bits now Quote Link to comment Share on other sites More sharing options...
Homer Posted August 25, 2007 Author Share Posted August 25, 2007 Flywheel HP and Torque: http://img209.imageshack.us/img209/3403/rrhomerflywheelsmallcn9.jpg Flywheel HP and boost. It's holding boost nice and steady http://img407.imageshack.us/img407/323/rrhomerfwboostsmallez8.jpg Flwheel and AFR's. Nice and safe. http://img407.imageshack.us/img407/4906/rrhomerhpafrssmallwh0.jpg Quote Link to comment Share on other sites More sharing options...
Homer Posted August 25, 2007 Author Share Posted August 25, 2007 Here is the comparison between Ian's and my car (Ian's in Red, mine in Green): http://img248.imageshack.us/img248/2573/rrianchomercomparisonsmyw4.jpg My BPU dyno'd just before the conversion (BPU @ 1.2bar) versus the one today. http://img128.imageshack.us/img128/8885/rrhomerbpuvst67smalloh7.jpg I'm surprised by the difference between Ian's and my car, I thought Ian's would walk away much more at the top end and not show any real difference in the mid range. However his wastegate issue probably explains this. It also confirms what Ian's said before about his car spooling a couple of hundred rpm later than mine. Quote Link to comment Share on other sites More sharing options...
grahamc Posted August 25, 2007 Share Posted August 25, 2007 some pics of my dyno sheets Quote Link to comment Share on other sites More sharing options...
Ryan.G Posted August 25, 2007 Share Posted August 25, 2007 Thanks daryl for graph will add to collection Afr's will always read richer on dyno daryl if road mapped due to less airflow on dyno Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted August 25, 2007 Share Posted August 25, 2007 Well a bit of a disastrous day for me, first i have some odd goings on with my EMU,then get stuck in traffic, so an A road trek to get there late! so in the end i had to run a quickly played about with old map on the EMU which resulted in a little det, so rather than push my luck any more the run was aborted, made 370BHP bar a nats;)at the crank and 390 torque, which resulted in 308 BHP and 328 ft at the wheels, at 1.3 BAR but this was at 4,800-5,000 RPM so if the map had been good, i might have been on for a bit more! Oh well maybe next time;) At least the KS-3 knock reader seems to work well on the Supra:) Will do a bit of a report later;) Thanks for the verification Ryan:) good to meet you, also Homer (finally) IanC, Grahamc, and anyone else who i have forgotten:senile: Same goes for those i do know,sorry i wasn't more sociable, was a little preoccupied with my car Quote Link to comment Share on other sites More sharing options...
grahamc Posted August 25, 2007 Share Posted August 25, 2007 Well a bit of a disastrous day for me, first i have some odd goings on with my EMU,then get stuck in traffic, so an A road trek to get there late! so in the end i had to run a quickly played about with old map on the EMU which resulted in a little det, so rather than push my luck any more the run was aborted, made 370BHP bar a nats;)at the crank and 390 torque, which resulted in 308 BHP and 328 ft at the wheels, at 1.3 BAR but this was at 4,800-5,000 RPM so if the map had been good, i might have been on for a bit more! Oh well maybe next time;) At least the KS-3 knock reader seems to work well on the Supra:) Will do a bit of a report later;) Thanks for the verification Ryan:) good to meet you, also Homer (finally) IanC, Grahamc, and anyone else who i have forgotten:senile: Same goes for those i do know,sorry i wasn't more sociable, was a little preoccupied with my car was a pity, really wanted something to compare my car to Quote Link to comment Share on other sites More sharing options...
Wez Posted August 25, 2007 Share Posted August 25, 2007 Great graphs guys. You can see how the larger turbos deliver the power more progressively over a wider rev range compared to the smaller units. Quote Link to comment Share on other sites More sharing options...
Ian C Posted August 25, 2007 Share Posted August 25, 2007 After talking to someone a while back I realised with horror that I'd thrown out a useful bit of the wastegate like a plonker. The HKS 'gate has got three adaptor plates and a cup section. The cup section is supposed to go between 'gate and manifold as it seats the plunger in it creating a proper seal. Muggins here classed it was "a fourth adaptor plate", fitted everything and slung it out two years ago. This explains a) Homer's getting on boost earlier and thus having more power throughout the midrange, and b) why I've always heard blowing exhaust noise when I start the car in the garage and yet have never found the leak I'm on 0.6bar of boost by 4000rpm and Darryl is on 0.8, so it's purely the fact I have less boost that explains the power drop I think, rather than the cams. I can't imagine how much better it's going to drive once I find meself one of these cup plates to fit in the blighter, seeing as it's fantastic already! Aaaaaaanyway, a minor issue, otherwise it was a cracking day, well done Darryl for organising and persevering with it Good to meet y'all and thanks for Rosie for putting me up (or putting up with me!) overnight. I'm glad it was a good sunny day (ow my neck) and the drive home was great Hurrah for sorted suspension and a bladdy fast car -Ian PS Ryan I found my cigarette lighter Quote Link to comment Share on other sites More sharing options...
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