Lowering engine braking and tapping rear brakes to adjust corner speeds - Yamaha R6 Forum: YZF-R6 Forums
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post #1 of 12 (permalink) Old 09-11-2013, 02:09 PM Thread Starter
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Lowering engine braking and tapping rear brakes to adjust corner speeds

So, if I reflash the ECU and lower the engine braking, can I use the rear brakes while leaned to adjust corner speeds? I used to do that as a beginner, but since have not touched rear brakes on the track at all.

What I'm looking for are relation of contact patch, lean angles, braking forces etc... I know touching the front brake leaned over is a bad idea
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post #2 of 12 (permalink) Old 09-11-2013, 02:18 PM
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Re: Lowering engine braking and tapping rear brakes to adjust corner speeds

I would suggest staying away from the rear brake for now. With your boot on, you won't have a good gauge of how much pressure you're adding so it might fishtail you (ask me how I know
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). Just trail brake into the corner, which is what you're supposed to do anyways. I engine brake before I trail brake.


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post #3 of 12 (permalink) Old 09-11-2013, 02:21 PM Thread Starter
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Re: Lowering engine braking and tapping rear brakes to adjust corner speeds

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Originally Posted by babymilo36 View Post
I would suggest staying away from the rear brake for now. With your boot on, you won't have a good gauge of how much pressure you're adding so it might fishtail you (ask me how I know
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). Just trail brake into the corner, which is what you're supposed to do anyways. I engine brake before I trail brake.
i want to test with and without engine braking on the same day if possible to see if I do like or unlike engine braking. Without a feel for it, I dunno if I want to lower it at all. A spare ECU with the flash will help test
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Laguna will be the test track if I get the spare ECU

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post #4 of 12 (permalink) Old 09-11-2013, 02:36 PM
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Re: Lowering engine braking and tapping rear brakes to adjust corner speeds

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i want to test with and without engine braking on the same day if possible to see if I do like or unlike engine braking. Without a feel for it, I dunno if I want to lower it at all. A spare ECU with the flash will help test
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Laguna will be the test track if I get the spare ECU
Are you getting the ECU tuned by Anthony? I have mine tuned by him as well and still use the engine braking even though it's been reduced.


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post #5 of 12 (permalink) Old 09-11-2013, 02:44 PM
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Engine bracing is what I do, always.... Drop gears and trail brake if necessary... I drop gears before entering a corner of course.


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post #6 of 12 (permalink) Old 09-11-2013, 02:56 PM Thread Starter
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Re: Lowering engine braking and tapping rear brakes to adjust corner speeds

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Originally Posted by babymilo36 View Post
Are you getting the ECU tuned by Anthony? I have mine tuned by him as well and still use the engine braking even though it's been reduced.
Yes, tuned by "The Bauce" only!!! I'd like to keep engine braking, but dont know how much. Is there a way to change it yourself after the flash?

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post #7 of 12 (permalink) Old 09-11-2013, 02:58 PM
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Re: Lowering engine braking and tapping rear brakes to adjust corner speeds

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Yes, tuned by "The Bauce" only!!! I'd like to keep engine braking, but dont know how much. Is there a way to change it yourself after the flash?
Most likely not but you'd have to ask him yourself. I just trusted him with the ECU and had him work his magic. Just let him know what you want and he'll work with you. He's probably the best person to reply to your question.


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post #8 of 12 (permalink) Old 09-11-2013, 02:59 PM Thread Starter
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Re: Lowering engine braking and tapping rear brakes to adjust corner speeds

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Most likely not but you'd have to ask him yourself. I just trusted him with the ECU and had him work his magic. Just let him know what you want and he'll work with you. He's probably the best person to reply to your question.

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he's hte best when it comes to answering questions. Helped me out a lot with the QS install as well. Will call/text him when I get the spare ECU.

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post #9 of 12 (permalink) Old 09-11-2013, 03:12 PM
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Re: Lowering engine braking and tapping rear brakes to adjust corner speeds

there is no reason to not try using the rear brake. Most race boots are thin enough in the sole to allow good feel (i wear SIDI .. awesome boots). Your not wearing a MX boot, but even on a dirt bike you feel the controls, so how will you not feel it with a rr boot ?

Just apply gradually. yea, if you stomp on it, or apply with a lot of sudden force, the rear is gonna step out. Don't do that. Baby steps and learn how to do it.

If you have 2 ecu's that can be flashed with different eb settings, that would be ideal. Anthony did mine and i have another with more eb taken out, but i'm still loving the one with a decent amount of EB left in (i have more eb that most of the boxes he does so ask him what may work for you).

Remember, if you wanna reduce eb without flashing again, you can cut the fingers off one of the 3 "Y" springs in the clutch basket. Put the remaining washer back in place on top of the other 2 full "Y" springs, torque the center hub nut, rest of clutch, go.
You can further reduce engine braking by removing the fingers of the 2nd spring but you must leave 1 spring in place. One hot setup that some used, was this : 1 full spring, then 6mm cut off fingers of 2nd, then 12mm cut off the top spring. I personally am using 2 full, top spring with 12mm cut off fingers, and mild eb reduction.

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post #10 of 12 (permalink) Old 09-11-2013, 04:14 PM Thread Starter
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Re: Lowering engine braking and tapping rear brakes to adjust corner speeds

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Originally Posted by MELK-MAN View Post
there is no reason to not try using the rear brake. Most race boots are thin enough in the sole to allow good feel (i wear SIDI .. awesome boots). Your not wearing a MX boot, but even on a dirt bike you feel the controls, so how will you not feel it with a rr boot ?

Just apply gradually. yea, if you stomp on it, or apply with a lot of sudden force, the rear is gonna step out. Don't do that. Baby steps and learn how to do it.

If you have 2 ecu's that can be flashed with different eb settings, that would be ideal. Anthony did mine and i have another with more eb taken out, but i'm still loving the one with a decent amount of EB left in (i have more eb that most of the boxes he does so ask him what may work for you).

Remember, if you wanna reduce eb without flashing again, you can cut the fingers off one of the 3 "Y" springs in the clutch basket. Put the remaining washer back in place on top of the other 2 full "Y" springs, torque the center hub nut, rest of clutch, go.
You can further reduce engine braking by removing the fingers of the 2nd spring but you must leave 1 spring in place. One hot setup that some used, was this : 1 full spring, then 6mm cut off fingers of 2nd, then 12mm cut off the top spring. I personally am using 2 full, top spring with 12mm cut off fingers, and mild eb reduction.
Thx Greg. I dont think I'm gonna mess with the clutch basket for now. Imma try flash both ECU's, keep 80% and 50% eb and test both out to see which one I like.

As for rear braking, I grew up on rear brakes in turns back on 100cc in India, I know, completely different story, but point is I feel like I would be comfortable with it.

Will try out next time out on track and update.

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Last edited by Doc-Ram; 09-11-2013 at 04:31 PM.
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