Double Clutching (i'm just full of em)
06-04-02, 11:40 AM
#26
um, dude, its not called bad synchros.....its called NO synchros. and yes that was brought up in another double-clutch thread but obviously doesn't pertain to modern day cars, especially a newer fwd eclipse (movie). and your not a punkass kid, your a smart *** kid. get it right 
.
now, do you know why you put it it nuetral? any one else that answers my question but billy gets their playtime revoked.
. now, do you know why you put it it nuetral? any one else that answers my question but billy gets their playtime revoked.
06-04-02, 02:17 PM
#27
I read your email
Re: Hollywood for the Truth?
Originally posted by Denny
..... Able to own and did own many Sports Cars it is interesting to note that his final and favorite vehicles were a '76 Mazda Cosmo, modified for street or track, and a '74 Saab Sonnet which was a track car only. For him these two vehicles were the ones that most easily put him into the "Zone," and kept him "lit up."
..... Able to own and did own many Sports Cars it is interesting to note that his final and favorite vehicles were a '76 Mazda Cosmo, modified for street or track, and a '74 Saab Sonnet which was a track car only. For him these two vehicles were the ones that most easily put him into the "Zone," and kept him "lit up."
06-04-02, 11:23 PM
#28
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Double de-clutching was used when there was no built in syncromesh, often called a crash box. The critical action was not depressing the clutch, it was essential to also use the accelerator simultaneously to control engine speed so it matched the speed of the new gear selected. Increase speed for a down change, lower speed for an upchange. Thus, you needed two feet working together.
Heel and toe was a different technique to use the brake and accelerator at the same time with the right foot.
In racing you could combine both techniques to change down and brake at the same time. Thus, you used two feet for three actions while using one hand to change gear and the other to steer. Getting it wrong cpould lead to noisy drama, like trying to use the brake as a clutch when using an automatic after becoming used to a manual gearbox! While a good driver used the heel to brake and the toe of the same foot to accelerate, if you had big feet it was sometimes easier to use the side of the foot to control the throttle and the sole for the brake where better control was necessary.
There is no need for double declutching on an RX-7 unless the gearbox is stuffed. Heal and toe has an occasional use like keeping the revs up at lights while holding the clutch and brakepedal down. You can get a better start the same as using two feet on an automatic. Its useful on a cold day when there is a chance of stalling.
Heel and toe was a different technique to use the brake and accelerator at the same time with the right foot.
In racing you could combine both techniques to change down and brake at the same time. Thus, you used two feet for three actions while using one hand to change gear and the other to steer. Getting it wrong cpould lead to noisy drama, like trying to use the brake as a clutch when using an automatic after becoming used to a manual gearbox! While a good driver used the heel to brake and the toe of the same foot to accelerate, if you had big feet it was sometimes easier to use the side of the foot to control the throttle and the sole for the brake where better control was necessary.
There is no need for double declutching on an RX-7 unless the gearbox is stuffed. Heal and toe has an occasional use like keeping the revs up at lights while holding the clutch and brakepedal down. You can get a better start the same as using two feet on an automatic. Its useful on a cold day when there is a chance of stalling.
06-13-02, 07:29 PM
#29
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Obviously a lot of thoughts about double clutching and heel and toe!!
I can speek more to double clutching (old ankles don't bend well enough to heel and toe in my 1st gen RX).
The bottom line is this - anything you can do to reduce wear and tear on your gearbox and transmission is A GOOD THING to thie end DOUBLE CLUTCH ON DOWN SHIFTS!!!
On my car there is definetely a difference when I double clutch or hesitate before entering a lower gear. You have the double gated gearbox to consider. Take it out of higher gear, rev it a bit while you let out the clutch and it should slip right into the lower gear when you shift into it (the reving allows you to match the engine swpeed to the gears better and makes for a smoother and faster shift)
I have trouble bending my ankle enough to really heel and toe anymore. Using the side of my foot works some times in the RX, but the peddle positions seem to make it difficult and I wory about getting my foot caught between the peddles (not good at 50+ downshiftin in a turn), so I just do the quich double clutch and live with it.
Bill
I can speek more to double clutching (old ankles don't bend well enough to heel and toe in my 1st gen RX).
The bottom line is this - anything you can do to reduce wear and tear on your gearbox and transmission is A GOOD THING to thie end DOUBLE CLUTCH ON DOWN SHIFTS!!!
On my car there is definetely a difference when I double clutch or hesitate before entering a lower gear. You have the double gated gearbox to consider. Take it out of higher gear, rev it a bit while you let out the clutch and it should slip right into the lower gear when you shift into it (the reving allows you to match the engine swpeed to the gears better and makes for a smoother and faster shift)
I have trouble bending my ankle enough to really heel and toe anymore. Using the side of my foot works some times in the RX, but the peddle positions seem to make it difficult and I wory about getting my foot caught between the peddles (not good at 50+ downshiftin in a turn), so I just do the quich double clutch and live with it.
Bill
06-13-02, 09:52 PM
#30
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Originally posted by jeremy
now, do you know why you put it it nuetral? any one else that answers my question but billy gets their playtime revoked.
now, do you know why you put it it nuetral? any one else that answers my question but billy gets their playtime revoked.
Jeff
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