Guest P-Irish Posted October 7, 2007 Share Posted October 7, 2007 Was just wondering if anyone could tell me what the standard boost pressure is on a Jap import turbo Supra? I have just recently bought one and its runnin at 1.5 bar. was just wondering if this is standard as i dont know much about the car at the moment. Many thanks Paul Quote Link to comment Share on other sites More sharing options...
leelbuk Posted October 7, 2007 Share Posted October 7, 2007 1.5bar???? Thats a bit too high if its on standard jap tubbies! If thats on standard ceramic jap turbos i'd be getting that back down to 1.2bar sharpish by turning down your boost controller if you have one. Standard I think they are about 0.8Bar but I bought mine running 1.0 bar so unsure. I know the UK spec/Hybrid turbos can be pushed up to 1.4bar, but 1.5 might even be a stretch for them! Oh and WELCOME Quote Link to comment Share on other sites More sharing options...
Guest P-Irish Posted October 8, 2007 Share Posted October 8, 2007 Im not sure what all it has done to it as fars as i know the cars just got a few mods on it. but it does have a big HKS front mounted intercooler if that means anything? is there anyway of finding out what all has been done to the car? as ive said im new to the cars and am not sure what is standard and whats not. Quote Link to comment Share on other sites More sharing options...
DODGYDODDS Posted October 8, 2007 Share Posted October 8, 2007 i have a j-spec, when i disconnected my boost controller, my car on standard boost made between 0.8 -0.85 bar. If your turbos are j spec ceramics, then you are in a dangerous area, where you could have severe component failure. As was said, if you are running a boost controller, turn it down sharpish, if you have not got one, i'd start with checking for loose/unconnected boost hoses. And check to see you have a restrictor ring fitted in your downpipe And for god's sake dont put your foot down, it'll cost alot if summat goes wrong Quote Link to comment Share on other sites More sharing options...
Guest P-Irish Posted October 8, 2007 Share Posted October 8, 2007 will have a look and see mate. thanks for the advice Quote Link to comment Share on other sites More sharing options...
Jamesy Posted October 12, 2007 Share Posted October 12, 2007 my stock JSpec runs at 0.8 BAR mate....this is right for a non-bpu TT. hope you get it sorted Quote Link to comment Share on other sites More sharing options...
Guest Nicholas Posted October 12, 2007 Share Posted October 12, 2007 I'm guessing the car is fully de-cat'd if so you need a restrictor ring to limit the flow so you can run a safe 1-1.1 bar. PM chris wilson he sells them. Your turbos wont last long at 1.5 bar. Quote Link to comment Share on other sites More sharing options...
Guest P-Irish Posted October 12, 2007 Share Posted October 12, 2007 Nope my car doesnt hava de-cat. Will b wanting to get one soon tho, and will see if the rings in or not. (if anyone knows a good place i could get one?) Had a pal of mine around to have a look at it. (as he works for a jap import company) He has found a stand alone ecu, the fuel pressure has been bumped up with bigger injects. There is also a bigger inlet manifold and he thinks there are bigger turbos in it to with a front mounted intercooler. All this is HKS stuff. Would this make the turbo pressure to high? Was wondering if anyone would have a rough estimate of what the BHP would be with all that? Want to get it rolling roaded asap. Thanks for all the help folks. Paul Quote Link to comment Share on other sites More sharing options...
JustGav Posted October 12, 2007 Share Posted October 12, 2007 Grab a pic of the engine bay... Quote Link to comment Share on other sites More sharing options...
Guest P-Irish Posted October 12, 2007 Share Posted October 12, 2007 um nt realy sure how to put a pic up on this thing. I know how to switch the computer on and go on the net but after that im sorta stuck Quote Link to comment Share on other sites More sharing options...
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