sdistc Posted July 10, 2012 Share Posted July 10, 2012 I think, along with the advice about maximising the setup's ability to put the power down (higher stall converter, shift kit, better suspension, better tyres), the other missing ingredient can be "adding lightness". Stripping as much weight out of the car will immensely improve the performance - not just acceleration, but braking and turning as well There is a brilliant link on SF.com from Steve Theodore about the weight of stock parts, and a few on weight reduction. Quote Link to comment Share on other sites More sharing options...
Alex Posted July 10, 2012 Share Posted July 10, 2012 (edited) e-Manage in any guise. Drop in PE650cc injectors (so you don't have to fit a resistor pack for the UK 550's) and a Walbro pump. e-Manage has many advantages over the S-AFC - much finer control, FCD etc. With this 1 step you could cover yourself for anything up to a small single. If you do not intend to increase the amount of air going through the engine all of it is unnecessary. The MINES ECU in this scenario is the only "upgrade" I can think of. Though it will demand only hi-octane petrol is used in the car as it runs a far more aggressive map/timing than stock. I think the MINES ECU in my auto has also seen the line pressures on the autobox being boosted to make the changes faster...but I can't swear it's the ECU that's done that, I've not got enough information on my car yet to call it. Edited July 10, 2012 by Alex (see edit history) Quote Link to comment Share on other sites More sharing options...
SupraD06 Posted July 10, 2012 Share Posted July 10, 2012 If you do not intend to increase the amount of air going through the engine all of it is unnecessary. You mean unnecessary to fit cams/gears and injectors? And by increasing the amount of airdo you mean by using an aftermarket inlet manifold? Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted July 10, 2012 Share Posted July 10, 2012 (edited) A decent mappable ecu will let you trim some of the excess fuelling under full stock or BPU boost levels that Toyota programmed in for safety and to protect the cats. remove both cats and pull some full boost fuel out and you can gain a bit more power. It needs doing properly by someone who knows what they are doing though!!! Edited July 10, 2012 by Chris Wilson (see edit history) Quote Link to comment Share on other sites More sharing options...
Alex Posted July 10, 2012 Share Posted July 10, 2012 (edited) You mean unnecessary to fit cams/gears and injectors? And by increasing the amount of airdo you mean by using an aftermarket inlet manifold? No, I don't, my answer was to the OP. Your plans are to change the amount of air in the system at a given rpm so yes fuel trimming is advisable. You change the amount of air injested and therefore the fueling requirements everytime you edit something from the intake to the exhaust. Most changes don't matter that much, some matter a lot. The 'chargers are the primary method of increasing the air going through the engine. Edited July 10, 2012 by Alex (see edit history) Quote Link to comment Share on other sites More sharing options...
SupraD06 Posted July 10, 2012 Share Posted July 10, 2012 No, I don't, my answer was to the OP. Your plans are to change the amount of air in the system at a given rpm so yes fuel trimming is advisable. You change the amount of air injested and therefore the fueling requirements everytime you edit something from the intake to the exhaust. Most changes don't matter that much, some matter a lot. The 'chargers are the primary method of increasing the air going through the engine. Ahh ok, sorry for the confusion. I thought your reply was to my post and then got the the wrong idea based on your reply. Quote Link to comment Share on other sites More sharing options...
barneybrendan Posted July 10, 2012 Share Posted July 10, 2012 e-Manage in any guise. Drop in PE650cc injectors (so you don't have to fit a resistor pack for the UK 550's) and a Walbro pump. e-Manage has many advantages over the S-AFC - much finer control, FCD etc. With this 1 step you could cover yourself for anything up to a small single. If you do not intend to increase the amount of air going through the engine all of it is unnecessary. The MINES ECU in this scenario is the only "upgrade" I can think of. Though it will demand only hi-octane petrol is used in the car as it runs a far more aggressive map/timing than stock. I think the MINES ECU in my auto has also seen the line pressures on the autobox being boosted to make the changes faster...but I can't swear it's the ECU that's done that, I've not got enough information on my car yet to call it. mine also felt like it changed faster with the mines ecu.they definately make the car a lot quicker and more responsive.plus its just plug it in and away you go. Quote Link to comment Share on other sites More sharing options...
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