Road Racing / Autocross & Time Attack Road Racing / AUTOX, HPDE, Time Attack

Heel and toe in FF compared to FR...

Thread Tools
 
Search this Thread
 
Old Apr 4, 2003 | 09:56 AM
  #1  
Arsenal's Avatar
Thread Starter
Honda-Tech Member
 
Joined: May 2002
Posts: 3,203
Likes: 3
From: England/Florida/Portland
Default Heel and toe in FF compared to FR...

I jst got done watching the videos at the Eaglef1.com site with Derrick Bell driving the M3 Ruff and Esprit, and during soem of the shots is shows his doing the heel and toe.

During this I thought that if you do this on a FF car, like a Integra ect, the basiclly you are working the brake and accelerator against each other, by doing both actions at the same time to the same two wheels. Wouldn't this cause a lack of momentom and a moment of neutrality?

Thus when you attempt it at a FR, the rear wheels receive the power, while the front brakes, ie causing a more natural balance and being to power through the corner.

If anyone can sort this confusion out that would be great as I know alot of people on here always talk about it.
Reply
Old Apr 4, 2003 | 10:02 AM
  #2  
Watkinsm3's Avatar
 
Joined: Jun 2002
Posts: 950
Likes: 0
From: Doylestown, PA
Default Re: Heel and toe in FF compared to FR... (Arsenal)

It doesn't matter... when you're braking for a turn and then blip the throttle to rev match you have the clutch in so the engine spins freely and you can make the downshift. FF or FR the transmission is not engaged during the time both the throttle and the brake are pressed.


[Modified by Watkinsm3, 2:03 PM 4/4/2003]
Reply
Old Apr 4, 2003 | 10:05 AM
  #3  
kurt.'s Avatar
 
Joined: Feb 2002
Posts: 2,948
Likes: 0
From: Debt, Ca
Default Re: Heel and toe in FF compared to FR... (Watkinsm3)

If anything, making a mistake while heel-toeing with a FR car could have more serious implications than a FF car; causing you to spin before even getting to the corner.
Reply
Old Apr 4, 2003 | 11:08 AM
  #4  
Warren's Avatar
Wrong-Way Wang
 
Joined: Jun 2000
Posts: 3,168
Likes: 0
Default Re: Heel and toe in FF compared to FR... (Arsenal)

Heel and toe or left foot braking? Like it's been said, it doesn't matter if the clutch is in.

Warren
Reply
Old Apr 4, 2003 | 03:33 PM
  #5  
REFLUX's Avatar
 
Joined: Mar 2003
Posts: 338
Likes: 0
From: Edmonton, Canada
Default Re: Heel and toe in FF compared to FR... (Vantage)

If anything, making a mistake while heel-toeing with a FR car could have more serious implications than a FF car; causing you to spin before even getting to the corner.
it's correctable though, no?
unless you really messed up & plow completely out of control
Reply
Old Apr 4, 2003 | 04:01 PM
  #6  
robbin's Avatar
 
Joined: Dec 2001
Posts: 474
Likes: 0
From: Vancouver, BC, Canada
Default Re: Heel and toe in FF compared to FR... (REFLUX)

I would think that making that correction would involve lifting off the brakes which would probably send you shooting off the track, so even if you save the spin, you're still in pretty lousy shape.
Reply
Old Apr 4, 2003 | 05:03 PM
  #7  
Arsenal's Avatar
Thread Starter
Honda-Tech Member
 
Joined: May 2002
Posts: 3,203
Likes: 3
From: England/Florida/Portland
Default Re: Heel and toe in FF compared to FR... (robbin)

Thanks for clearing it up, if anyone is inetersted the videos are excellent to watch definteley a
Reply
Old Apr 4, 2003 | 06:57 PM
  #8  
CRX Lee's Avatar
Honda-Tech Member
 
Joined: Jan 2003
Posts: 3,144
Likes: 3
From: Union, KY, USA
Default Re: Heel and toe in FF compared to FR... (Vantage)

If anything, making a mistake while heel-toeing with a FR car could have more serious implications than a FF car; causing you to spin before even getting to the corner.
You ought to try heel and toe rev matching on a downshift in a Mazda RX7 with a welded rear differential. Thou shalt have the revs perfect with the wheel and ground speed or you are coming around right now I suggest you try it while in a curve with some side G force to give you quick practice.
Reply
Old Apr 4, 2003 | 07:59 PM
  #9  
kurt.'s Avatar
 
Joined: Feb 2002
Posts: 2,948
Likes: 0
From: Debt, Ca
Default Re: Heel and toe in FF compared to FR... (CRX Lee)

I'm gonna have to pass on that...

Reply
Old Apr 5, 2003 | 09:32 AM
  #10  
siisgood00's Avatar
New User
 
Joined: Apr 2001
Posts: 1,720
Likes: 0
From: Portland, OR
Default Re: Heel and toe in FF compared to FR... (Vantage)

Wow, those vids are incredible! Eagle dumped a hell of a lot of cash to make those vids, for sure. Has anyone figured out how to save em'?
Reply
Old Apr 5, 2003 | 11:41 AM
  #11  
archman350Z's Avatar
 
Joined: Sep 2002
Posts: 124
Likes: 0
From: Novi, MI, USA
Default Re: Heel and toe in FF compared to FR... (CRX Lee)

You ought to try heel and toe rev matching on a downshift in a Mazda RX7 with a welded rear differential. Thou shalt have the revs perfect with the wheel and ground speed or you are coming around right now I suggest you try it while in a curve with some side G force to give you quick practice.
Talking about riding the razor's edge!...

I agree, practice (where you can't hit anything) while there is a side load on the car. If you screw up, the car will certainly let you know (FWD will push & RWD will spin). In theory you are heel-and-toeing to avoid upsetting the chassis during downshifts (the sudden jerk on the tires as they attempt to speed the engine up). If done properly, there will be no affect on the car regardless of whether it is FWD or RWD and the technique is the same. Of course there are different heel-and-toe techniques (like double clutching, etc.), but they are not related to drive configuration.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
iCon
Tech / Misc
4
Jul 11, 2008 10:40 PM
Lookincrazy
Honda Motorcycles
21
Jul 5, 2007 12:50 PM
Mach2ek4
Honda Civic (2006 - 2015)
9
Oct 24, 2006 07:27 PM
Kakkoii Integra
Road Racing / Autocross & Time Attack
7
Aug 19, 2002 05:17 AM
travis
Road Racing / Autocross & Time Attack
3
Sep 24, 2001 06:41 AM




All times are GMT -8. The time now is 06:54 AM.