johnny g Posted February 4, 2010 Share Posted February 4, 2010 It's an open-loop RPM limiter for it's launch - then it's %age slip on the wheels thereafter. Makes 1st gear easier, as all you need to worry about is the change from 1st to 2nd. Link to comment Share on other sites More sharing options...
Scott Posted February 4, 2010 Share Posted February 4, 2010 I know it isn't what it is designed for but does that not mean it could limit the RPM throughout the gears... theoretically? Link to comment Share on other sites More sharing options...
Terminator Posted February 4, 2010 Share Posted February 4, 2010 No because you would need launch control to activate every time you switched on the ignition. Even if you could set it to do this, you would have to set the delay to a massive figure to enable the car to be driven at all. Link to comment Share on other sites More sharing options...
Paul Whiffin Posted February 20, 2010 Author Share Posted February 20, 2010 No one interested in this deal? Link to comment Share on other sites More sharing options...
SteveC Posted February 20, 2010 Share Posted February 20, 2010 I had considered adding one of these at some point (hadn't really planned on it being just at the moment though ). Just a couple of questions: With UK and J-Spec traction control being different (rear brakes being involved on a UK model) - 1. Is the stock UK traction control actually any better than the stock J-Spec TC? 2. Are there any differences when installing RLTC on a UK model compared to a J-Spec? Link to comment Share on other sites More sharing options...
Terminator Posted February 20, 2010 Share Posted February 20, 2010 1, Not a UK owner, so can comment on the effect of the brake function, UK however the stock system still uses a secondary throttle butterfly to cut power, so will have the same recovery of power issues as the stock JDM. I believe as with the JDM it just leaves you with no throttle response for what seems like seconds, which can be a real problem. 2, The only differences are in the wiring and diagrams are available. The big advantage of RLTC is is progressive application of cut to power, it operates at a level before the stock system would react. It is actually very hard to feel the effect of the first level of cut. I did some seat of the pants tests back in 2001 leaving my stock JDM TC switched on, with all slip factors added together, RL was activating at around 16% to 18% slip by the time the stock system kicked in and cut the power. With only RL on and adjusted to activate the initial cut at 18% slip the difference was very noticeable, the car felt like it hesitated for a split second and then carried on in a straight line with no alteration to throttle position. With only stock TC switched on at the point of activation the car bogged down massively loading up the front wheels making the back go light, making it hard to control. All this was done with the car straight, I was not prepared to test the stock TC in a tight turn, as I know the out come. With RLTC set to WET I can just plant my foot and drive through a turn and RL wont let the wheels slip. When set up properly most, users have their initial cut set to trigger at around 8% to 11%, in a straight line, 10% being recognised as the most efficient amount of slip in a fast take off. In corner situations RL takes off 5% from each straight line settings, with 0% slip allowed in wet cornering. If you want more information drop me a pm. Link to comment Share on other sites More sharing options...
SteveC Posted February 20, 2010 Share Posted February 20, 2010 Thanks Phil for the excellent reply to my questions. It does sound like it's something that should be on the car - probably well ahead of the many other mods people like to do. I have once had the experience of the stock TC cutting the engine whilst pulling out of a wet junction onto a busy 'A' road - it wasn't pleasant! Link to comment Share on other sites More sharing options...
Paul Whiffin Posted March 20, 2010 Author Share Posted March 20, 2010 I cant believe this group buy isn't happening, these used to be very popular! Link to comment Share on other sites More sharing options...
imi Posted March 20, 2010 Share Posted March 20, 2010 I cant believe this group buy isn't happening, these used to be very popular! probably due to the fact that it doesn't have XXX BHP OR zillion number of pistons associated to it..... Link to comment Share on other sites More sharing options...
Terminator Posted March 20, 2010 Share Posted March 20, 2010 Anyone mention tire wear reduction. Link to comment Share on other sites More sharing options...
Pudsey Posted March 20, 2010 Share Posted March 20, 2010 Can the prices be revised or updated? Perhaps it was the time of year, and some people switching to aftermarket ECU's that have the function built in has given many people the thought of saving there money till the next up grade. Definately interested in the benifits of the system, didn't like the way it cooked Jevensio's engine though. From the RACELOGIC website: - RLTC6AL Adjustable Traction Control (6 Cyl) + Launch Control ABS £595 RLTC6DIAW Adjustable Traction Control (6 Cyl) + Launch Control + Digital Adjuster (TCWSSSET required) £695 Add-on Options Price TCDIA Digital Adjuster £180 So when you add it all up there is £2.85 variance, granted you have postage included though must say. Just not enough to tempt people me thinks just saving postage. Link to comment Share on other sites More sharing options...
Terminator Posted March 20, 2010 Share Posted March 20, 2010 Just read the whole thread about Javansio's engine problem, I don't think it was caused by RLTC, I believe RLTC just exposed a problem that was waiting to happen. The head had history, so I blame the head. If an injector does not fire when RLTC cuts it, there is no fuel to burn lean. If there were my car would fried, getting RLTC cut in at 8000 rpm would have blown the engine to bits if there was any fuel in a cut cylinder. Unless RLTC is set up very badly, so bad the ,car would not run, it can't cause a lean cylinder. I think the fact that Javansio is happily using RLTC without issue is proof the RLTC did not cause the engine failure. Link to comment Share on other sites More sharing options...
Paul Whiffin Posted March 21, 2010 Author Share Posted March 21, 2010 Can the prices be revised or updated? Perhaps it was the time of year, and some people switching to aftermarket ECU's that have the function built in has given many people the thought of saving there money till the next up grade. Definately interested in the benifits of the system, didn't like the way it cooked Jevensio's engine though. From the RACELOGIC website: - RLTC6AL Adjustable Traction Control (6 Cyl) + Launch Control ABS £595 RLTC6DIAW Adjustable Traction Control (6 Cyl) + Launch Control + Digital Adjuster (TCWSSSET required) £695 Add-on Options Price TCDIA Digital Adjuster £180 So when you add it all up there is £2.85 variance, granted you have postage included though must say. Just not enough to tempt people me thinks just saving postage. The prices on the Racelogic website are plus VAT. Link to comment Share on other sites More sharing options...
Pudsey Posted March 21, 2010 Share Posted March 21, 2010 Can the prices be revised or updated? Perhaps it was the time of year, and some people switching to aftermarket ECU's that have the function built in has given many people the thought of saving there money till the next up grade. Definately interested in the benifits of the system, didn't like the way it cooked Jevensio's engine though. Bit of a sweeping statment I made there which as you say should have read contributed to the failure perhaps. From the RACELOGIC website: - RLTC6AL Adjustable Traction Control (6 Cyl) + Launch Control ABS £595 RLTC6DIAW Adjustable Traction Control (6 Cyl) + Launch Control + Digital Adjuster (TCWSSSET required) £695 Add-on Options Price TCDIA Digital Adjuster £180 So when you add it all up there is £2.85 variance, granted you have postage included though must say. Just not enough to tempt people me thinks just saving postage. Just read the whole thread about Javansio's engine problem, I don't think it was caused by RLTC, I believe RLTC just exposed a problem that was waiting to happen. The head had history, so I blame the head. If an injector does not fire when RLTC cuts it, there is no fuel to burn lean. If there were my car would fried, getting RLTC cut in at 8000 rpm would have blown the engine to bits if there was any fuel in a cut cylinder. Unless RLTC is set up very badly, so bad the ,car would not run, it can't cause a lean cylinder. I think the fact that Javansio is happily using RLTC without issue is proof the RLTC did not cause the engine failure. Yeah, upon reflection and reading your research into the comment I 'sweepingly' made, I agree with what you are saying as a plausable reason for the failure. I have no doubt that the Race Logic System has been thoroughly researched and designed, and shouldn't cause a lean cylinder suituation. Everyone would hope anyway. The prices on the Racelogic website are plus VAT. Ah thanks Paul that does make a difference then. Is anyone interested in getting this going again? (Displaying complete confidence in the system). -------------------------------------------------------------------------------------------------------------------------------- NB: After returning from a ride in a 657.7bhp supra today, I have experienced the benefits of the system first hand. http://www.mkivsupra.net/vbb/showthread.php?t=212831 Awesome piece of kit this is, no other word for it. Link to comment Share on other sites More sharing options...
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