| Author | Message | ||
| chris cummings (Entelechy)
Junior Member Username: Entelechy Post Number: 224 Registered: 5-2001 |
Hey Jarrett, Just took another look at the link and that's a NEW site to me - looks great, thanks :-) ~C | ||
| chris cummings (Entelechy)
Junior Member Username: Entelechy Post Number: 223 Registered: 5-2001 |
Thanks for the info guys - very helpful. Jarrett - thanks for the link. I've been on that, but I guess I'm still too used to and fond of FerrariChat; I wish every layout were this user friendly. I'll explore in more detail when I get a chance, but would love to keep in touch in the future - I'll e-mail you on the side later. Thanks again. ~Chris | ||
| Rob Lay (Rob328gts)
Board Administrator Username: Rob328gts Post Number: 4629 Registered: 12-2000 |
Do a search on here and you'll find several threads on it. It's basically reving the engine up on downshifts so that when you release the clutch you don't put a sudden strain on the engine as the RPM's increase from the lower gear. It saves the engine/trans and also keeps the car from getting sideways. Technique I use is (most people use side to side foot movement vs. really heel and toe) under hard braking I downsift and while still braking I roll my foot over to rev the engine up and then release the clutch. If you do it right it's very smooth. | ||
| Drstranglove (Drstranglove)
Junior Member Username: Drstranglove Post Number: 124 Registered: 4-2003 |
Newbie here, What is heel/toe downshifting anyway?!?!?!?!?!?!? DrS | ||
| Jarrett Link (B0rf)
New member Username: B0rf Post Number: 10 Registered: 4-2003 |
It seems that engine braking, whether street or track, isn't very viable. For example, in a track car, if you are doing a quick downshift and don't rev match-- more than likely it will unsettle the rear end and spin the car. Chris-- visit www.bimmerforums.com for more info on your M3, or PM me, i have a '98  | ||
| Rob Lay (Rob328gts)
Board Administrator Username: Rob328gts Post Number: 4621 Registered: 12-2000 |
I agree Dave 100% for the street or any type of racing on a budget. If in pro racing where complete rebuilding is done between every race then I think anything is done to get the last hundredth of a second, no mater the consequences. Many road racers power shift and even if perfect at matching revs, I have to believe the life is much short than using the clutch. | ||
| Dave (Maranelloman)
Intermediate Member Username: Maranelloman Post Number: 1292 Registered: 1-2002 |
I agree with your last paragraph, Rob. But as for engine braking? Probably not much of a good idea, street or track, eh? Brake pads are so much cheaper & more effective than a clutch, esp. if it is you paying for clutch & engine rebuilds. | ||
| Rob Lay (Rob328gts)
Board Administrator Username: Rob328gts Post Number: 4606 Registered: 12-2000 |
See if anyone disagrees with me or takes the bait and I'll respond. Heel n' toe is harder on the engine if engine braking. It is possible to heel n' toe without engine braking, but in racing I think you would want to have a little engine braking. Who cares, it's a race car, you rebuild the engine. For the street not good though. I'm saving my silver bullet, but my brass bullet is that the reason you heel n' toe is to keep from an abrupt engine braking... you know, the kind that loops you around and your trans plug will have shavings on afterwards. | ||
| L. Wayne Ausbrooks (Lwausbrooks)
Intermediate Member Username: Lwausbrooks Post Number: 1516 Registered: 8-2002 |
"Heel n' toe will actually prolong the life of your clutch and transmission if done correctly." It will prolong the life of these components compared to downshifting without heel & toe/matched revs. Not using downshifting to brake at all will prolong their life even longer. | ||
| Chris Horner (Cmhorner17)
Junior Member Username: Cmhorner17 Post Number: 133 Registered: 4-2002 |
I've been driving my car hard (96 Grand Am GT) for 112k miles and heel and toe all the time. As hard as it's been driven, I've only had to replace the clutch at 95k miles and the transmission is fine. Drive it correctly, and it should last with no problem. Enjoy that M3!! The only thing I've liked driving more than that generation M3 was a F355. | ||
| chris cummings (Entelechy)
Junior Member Username: Entelechy Post Number: 218 Registered: 5-2001 |
Best of both worlds - excellent! Looking forward to the new vids - thanks Jon. Best, ~Chris | ||
| Jon P. Kofod (95f355c)
Member Username: 95f355c Post Number: 606 Registered: 8-2001 |
Chris, Heel n' toe will actually prolong the life of your clutch and transmission if done correctly. Hope to have some more Challenge video's up in the next week or so. Regards, Jon P. Kofod 1995 F355 Challenge #23 | ||
| chris cummings (Entelechy)
Junior Member Username: Entelechy Post Number: 216 Registered: 5-2001 |
After three high performance driving courses, I've come to really enjoy heel/toe downshifting. I just purchased a 99 M3 that's a manual transmission after years driving an automatic (I live in LA). If I enjoy it and do it often in everyday driving, will it cause any additional engine/clutch wear over the long haul? More than anything I'd like to take care of the transmission first and foremost. Thanks in advance, ~Chris |