Guest cadmkiv Posted February 9, 2012 Share Posted February 9, 2012 hey looking for imput, currently BPU looking to progress to APU but want to do it in stages (2 years/2 stages). 1993 Jspec RZ 60,000 km 6 speed current parts/ specs are: Electric rad fan/shroud aluminum rad rad cooling plate Blitz 4inch intercooler and piping Blitz Access ECU Blitz Boost gauge HKS Super dragger 4'inch HKS SSQV single decat pipe APEXi intake RPS Max Series 6 Puck Sprung Hub Clutch Fidanza Lightweight Aluminum Flywheel TRD trans mount Titan 264 intake/exhaust cams Titan cam gears unorthodox lightweight pullies Gates cam belt Gates aux belt new oem water pump new oem oil pump NKG spark plugs so currently there is little i can do to push my BPU any further so im wanting to go single soon i just don't know what is best to start with. i do plan on going with the Pro EFI from SP thus i have not spent money on all the other gauges because I will just get the CAN display and have every gauge i could need in one and also have the boost controler and every other possible function. my question is does it make sense to get the proefi first and run it with stock fuel and turbo and then do turbo/ fueling the following year? does anyone every upgrade the computer and run stock components (knowing that this will be done for a short amount of time) or should i run stock turbo on upgraded fueling and computer (clearly at very low boost/ duty cycle). Financially i can not do all at once.. but over time i would expect to get all three but what make logical sense to upgrade and in what order? or is there anything you would add first. Quote Link to comment Share on other sites More sharing options...
Guest cadmkiv Posted February 9, 2012 Share Posted February 9, 2012 also to add to the above post, the blitz access has: removed speed limiter removed fuel/boost cut red line 7500 boost control set to 1.15 Quote Link to comment Share on other sites More sharing options...
Robzki Posted February 9, 2012 Share Posted February 9, 2012 I know what bpu and bpu+ bpu++ what is apu? Quote Link to comment Share on other sites More sharing options...
Scott Posted February 9, 2012 Share Posted February 9, 2012 I know what bpu and bpu+ bpu++ what is apu? Advanced performance upgrades.... basically going single or big twins etc. Quote Link to comment Share on other sites More sharing options...
Mr Ree Posted February 9, 2012 Share Posted February 9, 2012 Advanced performance upgrade. Generally meaning once you go single, and with big fuel system etc EDIT: beating to the punch, oh snap! Quote Link to comment Share on other sites More sharing options...
Robzki Posted February 9, 2012 Share Posted February 9, 2012 lol, Never heard of that one, thanks both of you, learn something every day As you can see MrRee I am as much use to your thread as plastic brake pads. So I will wish you good luck and leave Quote Link to comment Share on other sites More sharing options...
Scott Posted February 9, 2012 Share Posted February 9, 2012 lol, Never heard of that one, thanks both of you, learn something every day As you can see MrRee I am as much use to your thread as plastic brake pads. So I will wish you good luck and leave It's an American-ism... much like BPU is. We don't use the term over here hence why you haven't heard of it before. It isn't MrRee's thread either, he was just helping you out as I was. Now sit down and pay attention C- Could try harder. Quote Link to comment Share on other sites More sharing options...
Guest cadmkiv Posted February 10, 2012 Share Posted February 10, 2012 also i guess another good question would be for all the other Jspec guys out there with the smaller brakes, what BBK have you gotten? what are you upgrading to. Quote Link to comment Share on other sites More sharing options...
Nic Posted February 10, 2012 Share Posted February 10, 2012 You'll probably be around 400hp with stock turbos and aftermarket cams at 1.2bar. The stock 440cc injectors will be at the limit at that power, if you fitted bigger injectors and mapped ECU it'd be possible to get around 430hp max. The most popular brake upgrade is to fit the larger front 4pot/rear 2pot Supra brakes, they are big improvement over the smaller brakes. Quote Link to comment Share on other sites More sharing options...
Mr Ree Posted February 10, 2012 Share Posted February 10, 2012 Agreed, the 4/2 pots with a suitable brake pad compound to match the type of use your car gets. BBK's are typically installed by people for aethetic reasons, as very few people push their A80 hard enough to need more braking than the 4/2 offers. Just be sure to buy quality rotors to go with the new callipers/pads, as the metal they are made from has a huge bearing on their abiltiy to cope with prolonged heat. The cheap aftermarket rotors will not be worth the money you save over the oem items Quote Link to comment Share on other sites More sharing options...
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