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Old 04-03-2012, 08:23 AM   #1
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TWS (Texas World Speedway) - shifting gears question

Apologize if this has been discussed before, but I'm looking for some help with being in the right gear at the right places for TWS (Texas World Speedway) from the sub 2:00 riders.

I need a quick run down going around the track to what gear you're in and where you're shifting. I'm stuck at the 2:00 mark and feel that my shifting is one of several issues I'm having at that track.

I'm running a 600 with the usual -1/+2 sprocket setup if that makes a difference.



Also, I was out there recently and noticed that T6 was missing a few of the usual bumps. Did that area get repaired? And if so has it caused a line adjustment for anyone?
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Old 04-03-2012, 09:05 AM   #2
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Too many variables bro.

Wind, track conditions, bike model/size, rider experience, rider style, rider weight, etc..

The gear you should be in is the gear that keeps your bike in its powerband.

For example, I ran 1:48 on my r6 and Alonzo ran the same, but he was running a different front and rear sprocket size with a different ratio then me. You wanna break the 2 minute mark, work on your throttle application. Get on the gas sooner and harder, that's where all the time will be found. That and Turn 1 entry. Post a pic of your rear tire and I'll try and explain in more detail.

Hope that helps bro.
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Old 04-03-2012, 09:10 AM   #3
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Old 04-03-2012, 09:13 AM   #4
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Too many variables bro.

Wind, track conditions, bike model/size, rider experience, rider style, rider weight, etc..

The gear you should be in is the gear that keeps your bike in its powerband.

For example, I ran 1:48 on my r6 and Alonzo ran the same, but he was running a different front and rear sprocket size with a different ratio then me. You wanna break the 2 minute mark, work on your throttle application. Get on the gas sooner and harder, that's where all the time will be found. That and Turn 1 entry. Post a pic of your rear tire and I'll try and explain in more detail.

Hope that helps bro.
It does. I figured it was going to be a bit more complicated.


I'll take a pic this afternoon of the tire. The last day I ran was the CMRA Friday so it should be as good an indicator as I can give you.
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Old 04-03-2012, 09:14 AM   #5
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Shifting points are very subjective. Mostly because it depends on your bikes gearing ratios for each gear, drive sprockets and tire size. All of these will make a difference on where you shift as well. What that being said, it seems like a -1/+2 might be a bit overkill for TWS (Texas World Speedway). I figure you should probably be around a -1/0 or 0/+2. Are you hitting the rev limiter before going into turn 1?

For TWS (Texas World Speedway) and tracks with really fast, long straights try and get your bike in 6th gear and about 1 or 2 thousand off of redline when you finally get off of the throttle and onto the brakes. Once it is geared that way, you can make small adjustments in gearing to get the best drive off of the fastest corners leading onto the longer sections of track (think turn 2, 6, 11 and 15 at TWS (Texas World Speedway)) so you aren't shifting is the dead middle of the corner.
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Old 04-03-2012, 09:18 AM   #6
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Quote:
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Shifting points are very subjective. Mostly because it depends on your bikes gearing ratios for each gear, drive sprockets and tire size. All of these will make a difference on where you shift as well. What that being said, it seems like a -1/+2 might be a bit overkill for TWS (Texas World Speedway). I figure you should probably be around a -1/0 or 0/+2. Are you hitting the rev limiter before going into turn 1?

For TWS (Texas World Speedway) and tracks with really fast, long straights try and get your bike in 6th gear and about 1 or 2 thousand off of redline when you finally get off of the throttle and onto the brakes. Once it is geared that way, you can make small adjustments in gearing to get the best drive off of the fastest corners leading onto the longer sections of track (think turn 2, 6, 11 and 15 at TWS (Texas World Speedway)) so you aren't shifting is the dead middle of the corner.
I'm just getting topped out before T1. I know that as I get better laptimes I'll be able to squeeze more out with a different sprocket setup, but as of the moment I'm struggling with so many aspects of that track that a sprocket change is the very least of my concerns.
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Old 04-03-2012, 09:34 AM   #7
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Just something to keep an eye on as you get faster. If are are coming too close to the red line or topped out at the end of the straight it isn't really pulling hard anymore and there will be a lot of time left on the track and your time through turn one will suffer.

But like Tony said, work on you exits and your drives out of the corners I stated above and never overlook you corner entry speeds either.
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Old 04-03-2012, 09:53 AM   #8
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What works for me might not work for you. I'll tell you what I do and how I shift...

07 gsxr600 (-1/+1) consistent 1:50.XX flat

Turn 1 (top of 6th gear downshift into 3rd) Turn 2 (3rd shifting into 4th on exit) Turn 3 (Downshift from 4th to 2nd emphasis on blipping to keep the rpms high shifting into 3rd over wheelie hill) Turn 4 (Downshift from 3rd into 2nd emphasis on blipping hug that mther fcking curbing and power to the edge on exit) Turn 5 (Maintenance throttle 3rd gear with a little bit of WOT after the turn to get to the edge) Turn 6 (Downshift to 2nd and gas HARD as soon as you hit the apex) Turn 7 (downshift from 5th to 3rd... Gas HARD at apex WFO!! Shifting into 4th) Turn 8 (Downshift into 3rd and carry as much speed as possible) Turn 9 (downshift into 2nd) Turn 10 (downshift from 3rd into 2nd) Turn 11 (2nd gear) Turn 12 (maintenance throttle in 3rd gear HARD on the GAS on apex) Turn 13,14,15 (Downshift into 2nd, carry speed, and hug Turn 15's curbing on exiting HARD on the GAS!!!)
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Old 04-03-2012, 10:01 AM   #9
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On the CBR I was running a -1/+2 at all track except TWS (Texas World Speedway). I ran a -1/+1 in there. I think I still have the 520 +1 sprocket if you want it.

AJ's shifting makes a lot of sense.
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Old 04-03-2012, 10:05 AM   #10
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AJ, thanks a bunch. It's easy to see why there is a ten second gap in our lap times. You're doing a lot more work and it's paying off.

Irak, I'll take that sprocket off your hands with a smile.
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Old 04-03-2012, 10:29 AM   #11
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Quote:
Originally Posted by kibitzer View Post
AJ, thanks a bunch. It's easy to see why there is a ten second gap in our lap times. You're doing a lot more work and it's paying off.

Irak, I'll take that sprocket off your hands with a smile.
You have to keep that 600 SCREAMING!!!
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Old 04-03-2012, 10:45 AM   #12
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Quote:
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You have to keep that 600 SCREAMING!!!
There's just something about TWS (Texas World Speedway) that throws me off. I've never crashed there, but had a lot of slips and bobbles thanks to the bumpy surface and a crappy suspension setup.

That has all been resolved, but I'm suffering a mental block on committing to the turns and trusting the surface.
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Old 04-03-2012, 10:47 AM   #13
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Old 04-03-2012, 10:51 AM   #14
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If you get a track layout I can give you a rough estimate of what gear I would suggest going into all corners and that would be the same gear for the exit.

Ill try and print a map and scann it with gears.
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Old 04-03-2012, 11:04 AM   #15
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Turn 4 and 7 some go down 1 gear more than I do.

Hope this helps


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Old 04-03-2012, 11:06 AM   #16
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Quote:
Originally Posted by kibitzer View Post
There's just something about TWS (Texas World Speedway) that throws me off. I've never crashed there, but had a lot of slips and bobbles thanks to the bumpy surface and a crappy suspension setup.

That has all been resolved, but I'm suffering a mental block on committing to the turns and trusting the surface.
TWS (Texas World Speedway) has great traction even on all of the sealer. Your bike will need to be setup right to safely ride faster. I've been able to do a 55 on stock suspension and a 53 with a rear shock. I can remember how my bike felt back then. It was really scaring getting on the gas because I didn't know where my bike would end up (sometimes it holds a line sometimes it did't). Hopefully your bike is all sorted out and you will feel a difference.

In all honesty I think TWS (Texas World Speedway) is one of the smoothest tracks in Texas with only Cresson being smoother.
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Old 04-03-2012, 11:11 AM   #17
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Quote:
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Turn 4 and 7 some go down 1 gear more than I do.

Hope this helps


Attachment 54787
Thanks a bunch. I need to do some studying before Saturday.

Quote:
Originally Posted by 103 View Post
TWS (Texas World Speedway) has great traction even on all of the sealer. Your bike will need to be setup right to safely ride faster. I've been able to do a 55 on stock suspension and a 53 with a rear shock. I can remember how my bike felt back then. It was really scaring getting on the gas because I didn't know where my bike would end up (sometimes it holds a line sometimes it did't). Hopefully your bike is all sorted out and you will feel a difference.

In all honesty I think TWS (Texas World Speedway) is one of the smoothest tracks in Texas with only Cresson being smoother.
I had similar issues with the stock suspension. For 07+, Honda decided to spring the CBR for a 210lb rider. At 155lbs I was having some issues with that.

Went from a stock, oversprung suspension to Ohlins 30mm cartridges up front and TTX out back. Got tired of being told I was too light for the stock stuff and just went whole hog.

If I can't do it on that suspension I just can't do it. Only problem is that now I can't blame the bike for being slow.
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Old 04-03-2012, 11:44 AM   #18
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I dont gear my motorcycle for the longest straight. You def do not want to run out of gear but your main objective is to not get caught between gears and balance that with optimal drive out of the corners.
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Old 04-07-2012, 06:42 PM   #19
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Thanks to everyone that commented on this thread. It all helped.

AJ your comments on the line in 8 prompted me to talk to a couple of pros today. I ended up taking your help in 8 and their help in 5-6 to correct some majorly poor choices of my own.


Overall I dropped from a 2:02.8 to a 1:58.5 today. I know that I have a lot more work to do and that it may not seem fast to most of you, but it feels great dropping a little better than 4 seconds by applying what I've been told.
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Old 04-07-2012, 08:34 PM   #20
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