rob wild Posted January 18, 2008 Author Share Posted January 18, 2008 I have the Tanabe touring. (sat in a box at the moment) so if you need a picture of anything let me know. Yes please Or even fitted with a sound clip Quote Link to comment Share on other sites More sharing options...
Ryan.G Posted January 18, 2008 Share Posted January 18, 2008 I cant get my head round this, or maybe im being silly....so what the score with a full stock exhaust system in place then surely thats even more restictive but cant be as bad as you mentioned re high tempratures otherwise it wouldn't have left the factory like it?? do you mean a first cat in place and a boost controller to up it to 1.2bar, in which case I see what you mean about extra heat being generated? Think your being silly My point was made about a BPU setup so it wont be running stock boost Quote Link to comment Share on other sites More sharing options...
Pixelfill Posted January 18, 2008 Share Posted January 18, 2008 I cant get my head round this, or maybe im being silly....so what the score with a full stock exhaust system in place then surely thats even more restictive but cant be as bad as you mentioned re high tempratures otherwise it wouldn't have left the factory like it?? do you mean a first cat in place and a boost controller to up it to 1.2bar, in which case I see what you mean about extra heat being generated? Think your being silly My point was made about a BPU setup so it wont be running stock boost Actually this was what I was getting at before Ryan, If the only mod that actually makes a car BPU is a free flowing exhaust and decat. Will removing only the 2nd cat and replacing the exhaust be enough to sufficiently affect the boost to the point where the EGT's become an issue. What Mikey is saying (and I tried to say earlier) is that a stock exhaust will be more restrictive than the BPU exhaust system with 1st cat, so why (without a boost controller upping the boost) will the BPU system (with single CAT) be worse in terms of EGT? Mike Quote Link to comment Share on other sites More sharing options...
Wez Posted January 18, 2008 Share Posted January 18, 2008 EDIT: deleted, didnt read it properly. Quote Link to comment Share on other sites More sharing options...
Ryan.G Posted January 18, 2008 Share Posted January 18, 2008 Actually this was what I was getting at before Ryan, If the only mod that actually makes a car BPU is a free flowing exhaust and decat. Will removing only the 2nd cat and replacing the exhaust be enough to sufficiently affect the boost to the point where the EGT's become an issue. Mike Right If you leave the first cat in on Most supra's and remove the 2nd one they will run around 1bar. 1bar on a STOCK ecu if the 1st cat is place will not hit EGT's that are not safe unless you have a fueling issue. The point i was making on my first post is that when you start to lean out the mixture with the FIRST cat in place you will hit EGT's that are too high unless the mixture is still fairly rich in tuning terms. Stock ecu’s run 10:1 I was stating 11:1 The closer the restriction is to the engine the more it will cause the temps to rise. What Mikey is saying (and I tried to say earlier) is that a stock exhaust will be more restrictive than the BPU exhaust system with 1st cat, so why (without a boost controller upping the boost) will the BPU system (with single CAT) be worse in terms of EGT? Because if you take one of the Cats out it will be creating more boost than it would with a standard system and both cats. More boost = more power = more energy = more heat! I cant comment on the egt’s on a standard exhaust so they may well be the same as with the 2nd cat removed and an aftermarket exhaust. Another point I was trying to make is that if you are on a stock ecu with the 1st cat in place don’t run more than 1bar other wise the EGT’s will be too high Blimey lol Ryan p.s Although i want to try and help as much as possiable on here i dont not have much spare time during the day and find myself on here when ever im waiting for something with work or on lunch Quote Link to comment Share on other sites More sharing options...
colsoop Posted January 18, 2008 Share Posted January 18, 2008 Yes please Or even fitted with a sound clip Anything particular or just the whole thing ? I will do a sound clip when i get around to fitting it Quote Link to comment Share on other sites More sharing options...
rob wild Posted January 18, 2008 Author Share Posted January 18, 2008 Anything particular or just the whole thing ? I will do a sound clip when i get around to fitting it THe whole thing and from the tip end would be great Also it is a straight exit? Quote Link to comment Share on other sites More sharing options...
kylestt Posted January 18, 2008 Share Posted January 18, 2008 Rob I think it may be easier to just find new neighbors? hehe Quote Link to comment Share on other sites More sharing options...
paul mac Posted January 18, 2008 Share Posted January 18, 2008 dont go to big Rob, i found when i fitted the BL 4" it absolutely ruined low down torque and the car was awefull to drive, i know this goes against all turbo theory but the best low down performance i found was with the cat in !, the car felt like stock again, obviously this hurts top end, but i think it demonstrates exhaust size does have an effect on torque even with turbocharged cars Quote Link to comment Share on other sites More sharing options...
colsoop Posted January 19, 2008 Share Posted January 19, 2008 A few pics, please excuse the mess in the garage Quote Link to comment Share on other sites More sharing options...
R Black Posted January 19, 2008 Share Posted January 19, 2008 Does anyone know a rough price on the Tanabe touring Colsoop is showing? also has it reasonable ground clearance? & is straight exit? Quote Link to comment Share on other sites More sharing options...
rob wild Posted January 19, 2008 Author Share Posted January 19, 2008 They are about £400-450 delivered which i think is a good price. Also i was told that they are a straight exit. Quote Link to comment Share on other sites More sharing options...
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