Motorcycle Racing Forum

Racing Discussion => Racing Discussion => Topic started by: diesel748 on April 12, 2004, 08:34:06 AM

Title: Mich tire temp.
Post by: diesel748 on April 12, 2004, 08:34:06 AM
I'm making the switch from Pirelli to Mich. I have Chicken Hawk warmers. My question is how long schould I cook 'em before I go out? I understand they do take a little longer to heat up than the supercorsas.
Title: Re: Mich tire temp.
Post by: TZDeSioux on April 12, 2004, 08:50:37 AM
Minimum 3 hours!
Title: Re: Mich tire temp.
Post by: diesel748 on April 12, 2004, 09:12:37 AM
I'll just plug em in now then wire up to the alternator on my truck for the drive up thurs. either way dog I get em up to temp!!
Title: Re: Mich tire temp.
Post by: cornercamping on April 12, 2004, 09:26:16 AM
This is what I was told by the Michelin man (the one that does the AMA stuff, forgot his name.)

Before going out the first time: 2 hours

and then immediately after you come off the track, and leave them on all day.  It will not cook the tires.  Leave them on until you are done for the day.

I did this at Jennings in November, it didn't have a problem what so ever.  Worked well actually.

According to the Michelin man, leave them on all day, unless your on track.  Otherwise they stay on.
Title: Re: Mich tire temp.
Post by: duc995@aol.com on April 12, 2004, 10:39:50 AM
As above...
Title: Re: Mich tire temp.
Post by: diesel748 on April 12, 2004, 10:42:03 AM
Thanks
Well I now know its not a quick nuke like the pirelli its a slow roast.
Title: Re: Mich tire temp.
Post by: MELK-MAN on April 12, 2004, 01:12:52 PM
45 minutes minimum.. 2 hours prior?? maybe in 50deg weather.. like said above, leave on all day. Want to check which thermostats you have in your hawks too. You want the "hot" ones...
Title: Re: Mich tire temp.
Post by: tigerblade on April 12, 2004, 02:29:41 PM
I only got the warmers on brand-spankin' new S2s at Topeka about 30 mins ahead of time and had no problems.  I wouldn't go much less than that though.
Title: Re: Mich tire temp.
Post by: cornercamping on April 12, 2004, 02:39:08 PM
Quote2 hours prior?? maybe in 50deg weather.. like said above, leave on all day. Want to check which thermostats you have in your hawks too. You want the "hot" ones...

That's what the guy told me.  ??? Big guy from France I think. He was at the Jennings Sport Bike Track Time track day (the one with Colin Edwards).  Here's what's on the WERA forum:

wanted to provide all riders who use tirewarmers what the correct temperatures are according to the engineers from the top 3 tire companies. It is a question I get constantly and I thought you guys would like the info.

Dunlop

160 degrees F both font and back for 45-60 mins. (This has changed for '04 it USED to be just like Michelin)


Perilli

140 degrees F both front and back for 30 mins.


Michelin

179 degrees F back and 149 degrees F front for 60 mins.


If you have any questions feel free to give me a call.
Title: Re: Mich tire temp.
Post by: Super Dave on April 13, 2004, 05:28:04 AM
At the AMA round at VIR I talked to Jim Rhodes, the AMA Michelin guy.  If we're talking DOT's, his recommendation when using digital tire warmers was 180 for the rear and 140 for the front.  I usually do about an hour.  You want the tire to be warm, the air inside, and if you do that, the rim will also be warm...and that will keep everything in good shape as you go to the grid.  If you just leave them on for a short period of time, you'll warm the tread of the tire and you might loose a lot of that heat.

Immediately after I come in, I put the warmers on.  If there's going to be a long time between races, lunch, etc., I'll usually pull down the temp, but I will leave them on for hours at a time.
Title: Re: Mich tire temp.
Post by: diesel748 on April 13, 2004, 06:19:17 AM
Thanks Everybody who replied!!
This info will be very benificial.
I will see all of you @ RA look for the blue ducati 748 with the warmers on the whole weekend.

Thanks again
Title: Re: Mich tire temp.
Post by: Super Dave on April 13, 2004, 06:33:27 AM
You haven't asked the most important question...

Will the change in tires affect my chassis?
Title: Re: Mich tire temp.
Post by: Steviebee on April 13, 2004, 06:37:04 AM
that assumes i had the chassy right in the first place !
Title: Re: Mich tire temp.
Post by: Super Dave on April 13, 2004, 07:01:24 AM
See, you're getting it, Steve....
Title: Re: Mich tire temp.
Post by: diesel748 on April 13, 2004, 07:15:16 AM
will they upset it? I was told throw em on and go. with the setting from the Pir- tire
Title: Re: Mich tire temp.
Post by: Super Dave on April 13, 2004, 07:25:27 AM
That's a broad statement.  It is contingent upon the bike handling properly before.

It can be as easy as that, but depending upon how far off you are, it can feel funny.

Who told you to throw them on and go?
Title: Re: Mich tire temp.
Post by: Eddie#200 on April 13, 2004, 07:29:03 AM
Quotewill they upset it? I was told throw em on and go. with the setting from the Pir- tire

True, then make your changes from there.  Nothing is cookie cutter.
Title: Re: Mich tire temp.
Post by: diesel748 on April 13, 2004, 07:34:23 AM
Tom M
I Just put a new rear spring on and set a good starting point. I plan on using practice and the GTU race on friday to dial the suspension in for supertwins on sat & sun. I had some issues w/ my set up last year wich led to a few mishapps.
Title: Re: Mich tire temp.
Post by: diesel748 on April 13, 2004, 07:37:33 AM
I'm sure Tom was just comenting on dementions of the tire. it's obvious every bike will react differant tire to tire. From what I understand you can have two identically set up bikes (tire,susp., gearing etc) and they will be differant
Title: Re: Mich tire temp.
Post by: duc995@aol.com on April 13, 2004, 07:49:25 AM
The Woodcraft warmers (literature) suggest 190 F front and 170 F rear (or vice versa?) for Michelin tires...
Title: Re: Mich tire temp.
Post by: Super Dave on April 13, 2004, 08:00:29 AM
Running higher temps in the front Michelin will require the tire to cool down before it works well.  Originally, I was lead to believe that I should run 180 in the front.  Literally, I had to skate a bit while the tire cooled down.

Tom's a great resource, so I'd go with his intuition.  He's seen your bike there and is familiar with it.  Go with what Tom says.  

That was where I was hoping you were getting your info...
Title: Re: Mich tire temp.
Post by: diesel748 on April 13, 2004, 08:18:38 AM
Thanks again Dave I am open to any input. only being in this game for a few years I egerly await any help and try to exercise all resources particularly when it comes to suspention.
Title: Re: Mich tire temp.
Post by: Super Dave on April 13, 2004, 08:32:01 AM
QuoteThanks again Dave I am open to any input. only being in this game for a few years I egerly await any help and try to exercise all resources particularly when it comes to suspention.

Well, that's easy.  

Go take your bike down to 4&6 and get it GMD Computracked and be done with it.  Ducati's either are good or they fight you.  I'm have and idea of what I'm doing and I use 4&6 and their GMD stuff.  I'm sold.  My time's worth a lot, I think, and I don't want to spend the year trying to square away my set up.  Refine it, fine, but I want to be in the ball park immediatley so I don't destroy tires, don't wad, and I can comfortably to laps at a quick pace with a good feel that I'm not going to die.  

http://4and6.com

Talk to Jim or Shawn.
Title: Re: Mich tire temp.
Post by: cornercamping on April 13, 2004, 08:57:08 AM
I dunno about all that crap.  Honestly, I'm not fast enough to tell the difference in suspension set up ;)

Plus, I have a Pro tweaking my stuff.  Works well that way.  All I have to do is ride  ;D 8)  So far, every single thing he's done to my bike, has worked excellent.   8)
Title: Re: Mich tire temp.
Post by: Super Dave on April 13, 2004, 09:19:45 AM
QuoteI dunno about all that crap.  Honestly, I'm not fast enough to tell the difference in suspension set up ;)

Ah, the reality is that you can tell the difference.  

Give me one minute with your motorcycle, and I can make it virturally unrideable with some adjustments.  Nothing broken either.

So, that's one of my bag of tricks...showing my riders that they don't $uck, and that they do notice differences in suspension...and that they matter.
Title: Re: Mich tire temp.
Post by: Bernie on April 13, 2004, 08:22:26 PM
Yeah, what he said.  I felt a huge difference when Dave made a small change to my bike.  I was quite surprised at how immediate and noticeable the change was.
Title: Re: Mich tire temp.
Post by: Super Dave on April 13, 2004, 09:05:24 PM
LOL!  Give me a screw driver and I'll mess it up.... 8)