gaz1 Posted June 26, 2007 Author Share Posted June 26, 2007 Glad to see it's holding boost well now That's the most important thing. For a 6-speed your powertrain losses are high. I know it's costly but getting a dyno run on a few different dyno's should give you a good feel for where the car is at. maybe something to do with the whining i get from the gearbox since the conversion was done:search: will look at getting it off rebuilding it and getting it back in;) Quote Link to comment Share on other sites More sharing options...
GeordieSteve Posted June 26, 2007 Share Posted June 26, 2007 Sounds about right. I made EXACTLY the same power at .9bar using the gt4088, stock cams, MapII and enlarged inlet manifold & TB Quote Link to comment Share on other sites More sharing options...
GeordieSteve Posted December 10, 2007 Share Posted December 10, 2007 hmmm just come across this post and I've had a much worse figure. Due to a boost problem is MASSIVLY over boosted to 1.7bar (only wanted to run at 1.2). Because of this we only ran at 5500rpm but made a pretty poor 380bhp at the wheels. CLEARLY I need the boost issue sorted but anyone got any ideas as to why to reading was so low? Cos I'm using a piggy back perhaps? Quote Link to comment Share on other sites More sharing options...
GeordieSteve Posted December 10, 2007 Share Posted December 10, 2007 p.s. it's a Garrett unit Quote Link to comment Share on other sites More sharing options...
Gaz Walker Posted December 10, 2007 Share Posted December 10, 2007 Who mapped it Steve? Is that the MapII yeah? Thats really low for that tubby. Quote Link to comment Share on other sites More sharing options...
GeordieSteve Posted December 10, 2007 Share Posted December 10, 2007 Mapped by Dan and it's running a little lean until about 4.5krpm. Yeah let down to say the least I'll try and get the graphs scanned Quote Link to comment Share on other sites More sharing options...
tooquicktostop Posted December 10, 2007 Share Posted December 10, 2007 You asked for 1.2 bar and it went to 1.7 bar, where have I heard that before I would have thought the mapper would have stopped mapping the car and found the fault before continuing I lost my standard bottom end at 1.7bar Quote Link to comment Share on other sites More sharing options...
GeordieSteve Posted December 10, 2007 Share Posted December 10, 2007 The car was mapped to 0.8bar as we had a problem with the boost controller. The boost controller is now turned on and set to 1.2bar but it's boosting way beyond it. Maybe a problem with the boost hose to the wastegate Quote Link to comment Share on other sites More sharing options...
dandan Posted December 10, 2007 Share Posted December 10, 2007 ambient temp 28,8 intake temp 23,2....... any advice welcomed;) Interesting numbers.....where is that intake number measured? Quote Link to comment Share on other sites More sharing options...
Wez Posted December 10, 2007 Share Posted December 10, 2007 Is the MAP II software available for anyone to use and can it control ignition as well as fueling? If I recall correctly the MAP units are a bit of an unknown over here, might be an idea to swap it for an AEM, LINK or EMU. EDIT: might be an idea to start another thread so the two motors dont get mixed up Quote Link to comment Share on other sites More sharing options...
GeordieSteve Posted December 10, 2007 Share Posted December 10, 2007 Yep it's free to download and controls timing, fueling, boost etc. etc. Apparently very easy to set up Quote Link to comment Share on other sites More sharing options...
Ian C Posted December 10, 2007 Share Posted December 10, 2007 The car was mapped to 0.8bar as we had a problem with the boost controller. The boost controller is now turned on and set to 1.2bar but it's boosting way beyond it. Maybe a problem with the boost hose to the wastegate That reads like you got it mapped to 0.8bar and are now running it with 50% more boost than it was mapped for? Your power is probably low due to far too much fuel, far too little, bog all ignition timing, or timing being pulled due to detonation. All told you probably need someone with experience to look at it. -Ian Quote Link to comment Share on other sites More sharing options...
GeordieSteve Posted December 10, 2007 Share Posted December 10, 2007 All told you probably need someone with experience to look at it. -Ian Can you advise anyone? I know you do a lot of mapping but what about MapII? Quote Link to comment Share on other sites More sharing options...
suprafan72 Posted December 10, 2007 Share Posted December 10, 2007 ... Quote Link to comment Share on other sites More sharing options...
turbonut Posted December 10, 2007 Share Posted December 10, 2007 I saw Private Piles car all be it with a built engine and greddy intake make well over 600 with the same turbo and pump fuel, did Dan explain why the numbers seem a little on the ' low ' side, perhaps he was being cautious Perhaps D doesnt know what he's talking about Lx Quote Link to comment Share on other sites More sharing options...
Ian C Posted December 10, 2007 Share Posted December 10, 2007 Can you advise anyone? I know you do a lot of mapping but what about MapII? Well initially really just someone to check the AFRs and listen with det cans to make sure it's not eating itself a bit every time you boot it. Brian (TDR) knows a bit about that ECU though. I don't -Ian Quote Link to comment Share on other sites More sharing options...
GeordieSteve Posted December 10, 2007 Share Posted December 10, 2007 Lovely, thanks chaps Quote Link to comment Share on other sites More sharing options...
GeordieSteve Posted December 10, 2007 Share Posted December 10, 2007 hmmmm I just realised... when I first got the car back I put my boot down, over boosted and lost quite a bit of power (dyno'd at 210bhp!). It was put down to loose boost hoses which were tightened up and re-dyno'd. I've just realised that since then I've had no wastegate chatter when lifting off. Could this have something to do with the overboost? Quote Link to comment Share on other sites More sharing options...
tooquicktostop Posted December 10, 2007 Share Posted December 10, 2007 I dont know enough about the problem to make a specific suggestion or reason for the issues you are having BUT, I would get the car checked by a reputable garage as soon as you can and not drive it in the meantime on any kind of boost, I just hope you have not damaged the engine Quote Link to comment Share on other sites More sharing options...
gaz1 Posted December 10, 2007 Author Share Posted December 10, 2007 did it overboost before you went on the dyno, the problem i had with overboosting was a restriction through the manifolds wastegate port, then the top hose from the wastegate melted:( Quote Link to comment Share on other sites More sharing options...
gaz1 Posted December 10, 2007 Author Share Posted December 10, 2007 hmmmm I just realised... when I first got the car back I put my boot down, over boosted and lost quite a bit of power (dyno'd at 210bhp!). It was put down to loose boost hoses which were tightened up and re-dyno'd. I've just realised that since then I've had no wastegate chatter when lifting off. Could this have something to do with the overboost? what manifold are yyou using Quote Link to comment Share on other sites More sharing options...
GeordieSteve Posted December 10, 2007 Share Posted December 10, 2007 I'm using http://cgi.ebay.co.uk/TOYOTA-SUPRA-2JZGE-INTAKE-MANIFOLD-2JZ-2J-GE-PLENUM-NA_W0QQitemZ230200158502QQihZ013QQcategoryZ36474QQssPageNameZWDVWQQrdZ1QQcmdZViewItem and a 90mm TB. We've had this problem once before with the top hose melting... may be something to check again I think... thanks for that! If I uploaded my map would anyone be able to have a quick lookthrough it? More out of interest to see how Dan mapped it more than anything else... I think the top hose may well be the answer Quote Link to comment Share on other sites More sharing options...
Sean1933 Posted December 11, 2007 Share Posted December 11, 2007 I'm using http://cgi.ebay.co.uk/TOYOTA-SUPRA-2JZGE-INTAKE-MANIFOLD-2JZ-2J-GE-PLENUM-NA_W0QQitemZ230200158502QQihZ013QQcategoryZ36474QQssPageNameZWDVWQQrdZ1QQcmdZViewItem and a 90mm TB. We've had this problem once before with the top hose melting... may be something to check again I think... thanks for that! If I uploaded my map would anyone be able to have a quick lookthrough it? More out of interest to see how Dan mapped it more than anything else... I think the top hose may well be the answer I think you will find he means exhaust manifold mate Quote Link to comment Share on other sites More sharing options...
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