dmad Posted March 6, 2003 Share Posted March 6, 2003 Okay, i don't get it. I've got a manual button but then apparently on the gear selector, L is 1st, 2 is 2nd and D is third upwards. So what is the manual button there for? I know its there for snow (engine braking), but is there any other practical uses for the manual button? I'd like to be able to do 180s pulling out of a car park to look like the Duke of Hazzard, and im presuming the best option would be to rev in N and then wack it down to either D or L on full lock? Obviously i'd better practice on a football-pitch sized car park else im going to be forcing the back into the nearest Vectra....... Quote Link to comment Share on other sites More sharing options...
Ian C Posted March 6, 2003 Share Posted March 6, 2003 You won't hit a Vectra, you'll be too busy scooping up bits of autobox off the floor There is a technique called powerbraking that you use with autos, have a search for that on this site, along with "manu", that'll get you the info you need on that thar manual button. -Ian Quote Link to comment Share on other sites More sharing options...
dmad Posted March 6, 2003 Author Share Posted March 6, 2003 ...everyone always tells me to 'search' and all I ever come up with is sweet FA. My autobox is coated in carbide. Quote Link to comment Share on other sites More sharing options...
Ian C Posted March 6, 2003 Share Posted March 6, 2003 Well, I used the search button (top right of the screen, not the ones attached to each post) and entered powerbraking and hit enter, and the second thread was This Which gives you the info you are looking for It can seem a bit harsh, people just shouting "SEARCH" at a new person, but you've gotta appreciate that some things have been asked a LOT of times before, e.g.: Oil choices Tyres Insurance How to launch an auto Differences between UK and J spec So it's nothing personal -Ian Quote Link to comment Share on other sites More sharing options...
Need4Speed Posted March 6, 2003 Share Posted March 6, 2003 im presuming the best option would be to rev in N and then wack it down to either D or L on full lock VERY EXPENSIVE. To do donuts you will need an LSD as well. All a bit boy-racer:eek: Quote Link to comment Share on other sites More sharing options...
eyefi Posted March 6, 2003 Share Posted March 6, 2003 Originally posted by dmad My autobox is coated in carbide. why?? Quote Link to comment Share on other sites More sharing options...
AJI Posted March 6, 2003 Share Posted March 6, 2003 I replied without reading post duh *edited* Quote Link to comment Share on other sites More sharing options...
Matt Harwood Posted March 6, 2003 Share Posted March 6, 2003 Whatever you do, DON'T rev the engine in neutral then engage Drive... Not unless you want to see the insides of your gearbox in the near future... The Manual button stops the auto box from changing gear. If you select manual mode, then engage D, (3rd), the car will pull away in 3rd and stay in 3rd untill redline. If used correctly, it can allow you to pull away in 1st and if you get the gearshifts right, you can get another few rpm and a quicker gear change than normal automatic mode will allow. Quote Link to comment Share on other sites More sharing options...
Brian Jackett Posted March 6, 2003 Share Posted March 6, 2003 And on the race track a degree of engine breaking a more skill factor Quote Link to comment Share on other sites More sharing options...
redline Rooster Posted March 6, 2003 Share Posted March 6, 2003 Quote dmad "and im presuming the best option would be to rev in N and then wack it down to either D or L on full lock?" OUCH!!!! - i've seen the results of this first hand!!! - a few years back in College there was this old Fud Ganada auto *rusty old pig of a car* :p - anyway we thought it'd be funny to find out what happens when you rev and auto an pop it in drive! hmmm 1, Lots of oil every where 2, cracked gearbox casing 3, almight shreeking of slipping gear teeth!!! Although highly funny on the Granada you dont wanna do this to a Sup nooo way!!!! haha I have used the manu to manually shift the gears *its alot of effort though LOL!* - but it is good for doing donuts - lock it in 1st and control the revs :devil: I hate to admit doing things like that but what can i say Abeast of a RWD drive car one very wet field and a mate with a camcorder!! haha Rooster :flame Dev Quote Link to comment Share on other sites More sharing options...
dmad Posted March 6, 2003 Author Share Posted March 6, 2003 Hehehe. Okay, i know what 'not' to do now - none of this slipping it into d then. Okay, so its put it in L and keep the revs going. Im not saying im going down to MacDonalds to try and impress the Oakley posse, but it would be nice to know how to do a slick U turn if need be. I've had to do a few on some empty streets before (my job means im always tracing up and down roads looking for addresses) and would love the chance to do something like in the movies...... Quote Link to comment Share on other sites More sharing options...
redline Rooster Posted March 6, 2003 Share Posted March 6, 2003 yeah you can leave it in 1st if you want, or just leave it in auto mode but put it in drive 2 - so the gear box is free to shift between 1st and 2nd depending on how much your giving it! the 1st gear is relativly short so usually, especially on grass i leave it in auto but in drive 2 - get a better spin that way! Power braking is the best way to start a good spin off, but like the other guys say dont do keep the brakes on with high revs for too long as the ATF gets hot quick! - I read somewhere that the manufactures rating for the max oil pressure in the auto torque converter can get to some 2000PSI!!!!!!! mad!! Power braking is definaly the best way to get a mint 0-60 too cheers rooster :flame Dev Quote Link to comment Share on other sites More sharing options...
p00t Posted March 6, 2003 Share Posted March 6, 2003 Since this thread is along the same lines... When using manual mode you switch gears by using the lever but to change down into 1st you have to press down the button on the side to let the 1st gear be used. Are you allowed to use this gear other than when first starting off? I'm just a bit scared of killing the gearbox whilst changing down when rolling... Quote Link to comment Share on other sites More sharing options...
JamesG Posted March 6, 2003 Share Posted March 6, 2003 I imagine the button is to stop you changing down one gear too many when bombing down the road. It certainly doesn't do any harm changing down into first while moving, but I wouldn't do it above about 30mph unless you like driving sideways/backwards etc.. James. Quote Link to comment Share on other sites More sharing options...
p00t Posted March 6, 2003 Share Posted March 6, 2003 Thanks for the info. Off now to try it out! Quote Link to comment Share on other sites More sharing options...
Matt Harwood Posted March 6, 2003 Share Posted March 6, 2003 I believe it's all electronically controlled, so it won't engege a lower gear untill the speed drops to a point where it wont damage the box.. It does change down at high revs though, so expect a fairly sharp amount of engine breaking Quote Link to comment Share on other sites More sharing options...
redline Rooster Posted March 6, 2003 Share Posted March 6, 2003 Matt, good point actually the Supras boxes are electronically controlled! - the old style full mechanical oil governed ones you dont want to do it in! - e.g F reg ford Granada!! :D still i wouldn't want to try it on a supra box!! haha roost :flame Dev Quote Link to comment Share on other sites More sharing options...
JamesG Posted March 6, 2003 Share Posted March 6, 2003 I wonder how the operation of it actually works. Say you're tootling along at 90mph and you put it into 2nd gear. Assuming the change down strategy is based on speed and any kph->mph conversion or delimiting hasn't knackered this up, what would happen? Perhaps it stays in 3rd, but when you drop below another predetermined speed it changes down to 2nd. Could be a bit of a shock if it suddenly does that 60mph, half an hour after you accidently clipped it into 2nd James. Quote Link to comment Share on other sites More sharing options...
Steve Cargill Posted March 6, 2003 Share Posted March 6, 2003 I've noticed that if I change down into 1st I have to give it a blip otherwise there is a LOT of engine braking fora second whilst everything settles down. (note I've got the crap speedo conversion) The gearbox will be bullet proof providing you let it get on with being an auto. Never, never slam it from N to D unless you want to destroy something... mate used to do ENORMOUS wheelspins in a Trans Am by dropping it into N at 30ish, flooring it then back to D. After a few of these the diff DISINTEGRATED...... Quote Link to comment Share on other sites More sharing options...
redline Rooster Posted March 7, 2003 Share Posted March 7, 2003 Originally posted by JamesG I wonder how the operation of it actually works. Say you're tootling along at 90mph and you put it into 2nd gear. Assuming the change down strategy is based on speed and any kph->mph conversion or delimiting hasn't knackered this up, what would happen? Perhaps it stays in 3rd, but when you drop below another predetermined speed it changes down to 2nd. Could be a bit of a shock if it suddenly does that 60mph, half an hour after you accidently clipped it into 2nd James. Yeah I believe the auto box ECU uses speed, rev and throttle position to determine when it should change - i guess a dodgy speed conversion would put this out a bit. roost :flame Dev Quote Link to comment Share on other sites More sharing options...
dmad Posted March 7, 2003 Author Share Posted March 7, 2003 What about if you were doing 100 and then 'slipped' it into reverse? Quote Link to comment Share on other sites More sharing options...
Steve Cargill Posted March 7, 2003 Share Posted March 7, 2003 Originally posted by dmad What about if you were doing 100 and then 'slipped' it into reverse? You'd have a lot of clearing up to do followed by a very large bill Quote Link to comment Share on other sites More sharing options...
JamesG Posted March 7, 2003 Share Posted March 7, 2003 Incidentally, when I got my Supra it was the first car I had with automatic transmission. I didn't realise for a few weeks that it wasn't always necessary to press the button when shifting. So for anyone who might have got their car recently - don't press the button when shifting unless it forces you to. It will stop you putting it into reverse while at 100mph and other such unhealthy combinations (yay, 200 posts!) James. Quote Link to comment Share on other sites More sharing options...
redline Rooster Posted March 8, 2003 Share Posted March 8, 2003 Originally posted by dmad What about if you were doing 100 and then 'slipped' it into reverse? well seeing as the Supra box is computer controlled it should have a bit of saftey code in the software to realise that if it engages Reverse at more then 10MPH its gonna do damage!! so i would assume it'll default to neutral - still wouldn't wanna give it ago! ahhaha Also when shifting manually from neutral to Drive or d1, d2 you DONT need to press the button in, just push the lever - you only need to push the button when selecting reverse, as its a kind of mechanical saftey switch to stop you acidently selecting R when going forwards!! roost :flame Dev Quote Link to comment Share on other sites More sharing options...
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