hodge Posted March 10, 2010 Share Posted March 10, 2010 I'm doing some work on a mkIII at the weekend including fitting a boost controller. Does anyone know the safe boost limit for a CT26 turbo. I would have thought it would be around the 1.2 bar mark. Anyone know for definate. Thanks John Quote Link to comment Share on other sites More sharing options...
shima60 Posted March 10, 2010 Share Posted March 10, 2010 i used to hit fuel cut at 12psi thats with no boost leaks. Quote Link to comment Share on other sites More sharing options...
Porky1978 Posted March 10, 2010 Share Posted March 10, 2010 12 psi is what?? 0.8/0.9 bar? Quote Link to comment Share on other sites More sharing options...
shima60 Posted March 10, 2010 Share Posted March 10, 2010 yea around that. but some people were getting a bit more. normally a lexus AFM and 550cc injectors with a SAFC got around that problem and you could get good power after this set up hope that helps Quote Link to comment Share on other sites More sharing options...
hodge Posted March 11, 2010 Author Share Posted March 11, 2010 can a fuel cut defender not solve the problem. Quote Link to comment Share on other sites More sharing options...
JSeaman Posted March 11, 2010 Share Posted March 11, 2010 Fuel cut varies on the mk3, people have had it as low as 9psi and over 14 psi. The generally accepted limit is about 14 psi normally. A FCD can help with this but you run the danger of fuel cut not kicking in when you actually do need it. Shimming the wastegate is a common mod that can easily knock you off the top of the stock gauge so ~10 psi+ With lexus+550s you can go way past that to high teens or low 20s but that's down to other factors such as afr setup as well Has it got a standard exhaust with cats? Losing them will gain you a few PSI, obviously make clear to the owner the more they boost the more likely they are to need a head gasket! Oh and 14.5 psi = 1 bar Quote Link to comment Share on other sites More sharing options...
hodge Posted March 12, 2010 Author Share Posted March 12, 2010 cheers matey. I suppose its just gona be a case of seeing where the boost cut comes in and go from there. Quote Link to comment Share on other sites More sharing options...
JSeaman Posted March 12, 2010 Share Posted March 12, 2010 Could do - any idea what else is done to the car? Decat, exhaust and turbo elbow with a wastegate shim might meet their needs Don't suppose it is a member of mkiiisupra.net is it? If so, might know them Quote Link to comment Share on other sites More sharing options...
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