Guest jonny79 Posted April 26, 2011 Share Posted April 26, 2011 Hi, I have a 1994 uk spec supra which engine wise is completely standard. I am thinking of getting it remapped. Which is the best place to get it done? How much more BHP will this produce? Is it safe to do this and are there any pitfalls? Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted April 26, 2011 Share Posted April 26, 2011 Do a search for bpu That would be the first stop, you would need an aftermarket ECU to get it remapped anyway Quote Link to comment Share on other sites More sharing options...
Nic Posted April 26, 2011 Share Posted April 26, 2011 The stock ECU cannot be remapped in the UK - don't believe any company that claims otherwise. Click and read -> BPU Any other questions just shout. Quote Link to comment Share on other sites More sharing options...
AlexJames Posted April 26, 2011 Share Posted April 26, 2011 Def BPU first, then when you have done that, ask anyone on here about Ryan, hes the best to do the re-map. http://www.2bartuning.com/ Quote Link to comment Share on other sites More sharing options...
marc_p Posted April 26, 2011 Share Posted April 26, 2011 Yup, as the others have said, you can't remap the stock ECU, you will need a new ECU. Quote Link to comment Share on other sites More sharing options...
Lude Posted April 26, 2011 Share Posted April 26, 2011 yep go BPU 1st mate then if thats too slow for you, go Single which will require the remap Quote Link to comment Share on other sites More sharing options...
SamuraiFlash Posted April 27, 2011 Share Posted April 27, 2011 What kind of power gain can one expect from a stock TT pre-BPU with a remap using a piggyback ECU like the eManage ultimate? With mods like fmic/uprated smic and a new exhaust system like a Blitz Nur Spec? Quote Link to comment Share on other sites More sharing options...
Luxluc Posted April 27, 2011 Share Posted April 27, 2011 Around 400 bhp on J-spec tubbies @ 1.2bar, probably around 440bhp on UK-spec tubbies @ 1.4bar. Quote Link to comment Share on other sites More sharing options...
SamuraiFlash Posted April 27, 2011 Share Posted April 27, 2011 Sorry lux I'm talking about power gains before going bpu bud. Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted April 27, 2011 Share Posted April 27, 2011 What kind of power gain can one expect from a stock TT pre-BPU with a remap using a piggyback ECU like the eManage ultimate? With mods like fmic/uprated smic and a new exhaust system like a Blitz Nur Spec? Unless you decat/BPU very little, not worth the bother IMO, and even at BPU there is not much to be had by using a piggyback, maybe 10-15BHP if mapped correctly, its only when you run in TTC mode, or run hybrids or go single that it will start to show its worth. Quote Link to comment Share on other sites More sharing options...
Luxluc Posted April 27, 2011 Share Posted April 27, 2011 Sorry lux I'm talking about power gains before going bpu bud. Sorry, I didn't read correctly. Indeed, you won't win a lot with an e-manage on its own (in addition with a FMIC) Quote Link to comment Share on other sites More sharing options...
Nic Posted April 27, 2011 Share Posted April 27, 2011 What kind of power gain can one expect from a stock TT pre-BPU with a remap using a piggyback ECU like the eManage ultimate? With mods like fmic/uprated smic and a new exhaust system like a Blitz Nur Spec? If you are running stock boost pressure, the ECU/map would add a little, I'd guess 10-20hp, so around 330-340hp total. The big - and relatively cheap - hp gains are to be had by removing the cats and upping the boost to 1.2bar, this along with the ECU/map should make 400+hp. If you added longer duration/higher lift cams to that, it should make up to around 430hp. Quote Link to comment Share on other sites More sharing options...
SamuraiFlash Posted April 28, 2011 Share Posted April 28, 2011 If you are running stock boost pressure, the ECU/map would add a little, I'd guess 10-20hp, so around 330-340hp total. The big - and relatively cheap - hp gains are to be had by removing the cats and upping the boost to 1.2bar, this along with the ECU/map should make 400+hp. If you added longer duration/higher lift cams to that, it should make up to around 430hp. Thanks for the reply Nic, my stock Jspec TT is prodicing 286bhp and 305nm of torque, I would like to increase tge power of the car to about 320-330 bhp without upping the boost, will this be attainable without going BPU? Will 256 cams and an Emanage ultimate give me this power? Quote Link to comment Share on other sites More sharing options...
Thorin Posted April 28, 2011 Share Posted April 28, 2011 Why would you rather spend lots of money on cams/ecu/mapping rather than just going BPU properly? Quote Link to comment Share on other sites More sharing options...
aman00123 Posted April 28, 2011 Share Posted April 28, 2011 Thanks for the reply Nic, my stock Jspec TT is prodicing 286bhp and 305nm of torque, I would like to increase tge power of the car to about 320-330 bhp without upping the boost, will this be attainable without going BPU? Will 256 cams and an Emanage ultimate give me this power? You might get close but it's much cheaper and easier by going BPU as people have said - so double decat with restrictor ring, fuel cut defender, fmic, boost controller to up the boost. You probably can do without the boost controller if you are looking at under 350bhp Quote Link to comment Share on other sites More sharing options...
Gaz6002 Posted April 28, 2011 Share Posted April 28, 2011 Why would you rather spend lots of money on cams/ecu/mapping rather than just going BPU properly? I'd imagine turbo preservation is the ultimate goal Quote Link to comment Share on other sites More sharing options...
Nic Posted April 28, 2011 Share Posted April 28, 2011 Thanks for the reply Nic, my stock Jspec TT is prodicing 286bhp and 305nm of torque, I would like to increase tge power of the car to about 320-330 bhp without upping the boost, will this be attainable without going BPU? Will 256 cams and an Emanage ultimate give me this power? 286hp at the wheels or flywheel? A stock J-spec Supra should make around 300-320hp (flywheel). Cams and EMU/mapping would be a lot of expense to go to for what would only be moderate gains in power. Upping the boost only slightly to say 0.9-1bar by removing the first cat and fitting an aftermarket exhaust would be a lot cheaper and get you much better results. When was the car last serviced and when were the oxygen sensors last renewed? Spending the money on a thorough service will make a noticeable difference if the car hasn't been pampered for a while. Quote Link to comment Share on other sites More sharing options...
aman00123 Posted April 28, 2011 Share Posted April 28, 2011 I'd imagine turbo preservation is the ultimate goal Then why would you want to have more power? Surely more power means sacrificing something - whether it's turbo's or reliability Quote Link to comment Share on other sites More sharing options...
TTRickeh Posted April 28, 2011 Share Posted April 28, 2011 Thanks for the reply Nic, my stock Jspec TT is prodicing 286bhp and 305nm of torque, I would like to increase tge power of the car to about 320-330 bhp without upping the boost, will this be attainable without going BPU? Will 256 cams and an Emanage ultimate give me this power? 286 at the wheels? I assume you mean 305 lbft torque as 305nm is nothing for a TT. Quote Link to comment Share on other sites More sharing options...
SamuraiFlash Posted April 28, 2011 Share Posted April 28, 2011 You might get close but it's much cheaper and easier by going BPU as people have said - so double decat with restrictor ring, fuel cut defender, fmic, boost controller to up the boost. You probably can do without the boost controller if you are looking at under 350bhp Why would you rather spend lots of money on cams/ecu/mapping rather than just going BPU properly? Bpu at 1bar will give me the power levels I'm looking at and it will be cheaper, but my train of thought is that upping the boost just compromises tge realiability if the car, or am I just wrong in thinking this way? Quote Link to comment Share on other sites More sharing options...
aman00123 Posted April 28, 2011 Share Posted April 28, 2011 Reliability should be fine bud - i've been at BPU at 1.2 bar for 4k miles with not one issue Only thing you'll find is the lifespan of your turbo's will decrease slightly - but then stock tubbies have lasted 200k miles iirc in some cases Quote Link to comment Share on other sites More sharing options...
Gaz6002 Posted April 28, 2011 Share Posted April 28, 2011 Then why would you want to have more power? Surely more power means sacrificing something - whether it's turbo's or reliability Depends on your approach. Raising the boost will mean your turbos won't last as long, and doing other mods instead also means the car might (arguably) drive better too if mapped correctly as you won't get that huge kick in the back as per BPU. IMO Nic is right though, a modest boost hike with some well-planned supporting mods is the best combination. I certainly would never want to have a highly-strung turbo car again. Every time you plant your foot you worry something is going to pop. Much better to over-engineer. Quote Link to comment Share on other sites More sharing options...
Nic Posted April 28, 2011 Share Posted April 28, 2011 Bpu at 1bar will give me the power levels I'm looking at and it will be cheaper, but my train of thought is that upping the boost just compromises tge realiability if the car, or am I just wrong in thinking this way? 0.9-1bar should give you the moderate power/torque gains you are looking for without over stressing the turbos. I would personally go this route rather than fitting a piggyback ECU, arguably the car could be less reliable with a piggyback ECU compared to running with just the stock ECU, but that really depends on who would be doing the mapping. Quote Link to comment Share on other sites More sharing options...
SamuraiFlash Posted April 28, 2011 Share Posted April 28, 2011 (edited) It's 286bhp at the wheels and yes I meant 305lbft of torque. Gaz got it right I am thinking if preserving my Turbo's, that's why I want a little more power without upping the boost. I don't know if the o2 sensor has been replaced, so I'll be replacing that soonish, I have yet to fit my greddy fmic so I should see some ponies return as my stock smic is most likely not as efficient as it was 16 years ago. Will I be able to hold boost pressure at 0.9bar with a restrictor ring and boost controller? Edited April 28, 2011 by SamuraiFlash (see edit history) Quote Link to comment Share on other sites More sharing options...
Nic Posted April 28, 2011 Share Posted April 28, 2011 Will I be able to hold boost pressure at 0.9bar with a restrictor ring and boost controller? Fitting a 1st decat pipe, keeping the 2nd cat and fitting an aftermarket exhaust should increase the boost slightly to around 0.9-1bar, it should also help the turbos spool up quicker and the car be more responsive. If the boost does go too high then a restrictor ring could be fitted to keep it in check. If you stay below 1bar then you won't need a fuel cut defender - although you'll be right on the limit so may be worth fitting - your current spark plugs should be fine, the stock fuel pump should also be able to cope. I would fit a boost gauge so you can keep an eye on boost levels. Quote Link to comment Share on other sites More sharing options...
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