Rubber Worm after trackday - LotusTalk

shinchan · 10-29-2009, 07:39 PM

Hi All,

I noticed my street tyres (AD07) have alot of build up (like rubber worms) after a trackday event,

Was this because the tyres have incorrect inflated pressure? (was set to 25F/27R cold)?

or the track was just too hot for these tyres? (It was a hot day)

or the driver just doesn't know what he was doing?

or this is quite normal?

Also, do I just drive this off or do I need that removed and cleaned?

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Name: DSC00291.JPG
Views: 213
Size: 178.4 KB

Uncle Sam · 10-29-2009, 07:42 PM

Normal

Harix · 10-29-2009, 09:33 PM

That's normal from alot of Gs. Just drive it normally (don't need to clean it).

marcinr · 10-29-2009, 10:39 PM

A lot of that rubber comes from the track itself, only some of it is yours. My tires look just like that after every track day, and it wears off in about 100 mi.

ZTEC · 10-29-2009, 11:27 PM

That just means you had a proper track day! No worries....

lotus69f2 · 10-29-2009, 11:40 PM

Agree with above. If you are worried that tire pressures are too low look at the sides of the tread. If there is wear on the upright portions (as opposed to the rounded edge) then your pressures may be too low. It indicates the tires are rolling over under lateral G. I can't tell for sure looking at your picture, but it looks OK as far as that goes.

.

shinchan · 10-30-2009, 12:24 AM

Cheers guys. I guess I have full reason to take it for a drive again this weekend

10-29-2009, 07:39 PM	#1 (permalink)
shinchan Registered User Join Date: Dec 2008 Posts: 17	Rubber Worm after trackday Hi All, I noticed my street tyres (AD07) have alot of build up (like rubber worms) after a trackday event, Was this because the tyres have incorrect inflated pressure? (was set to 25F/27R cold)? or the track was just too hot for these tyres? (It was a hot day) or the driver just doesn't know what he was doing? or this is quite normal? Also, do I just drive this off or do I need that removed and cleaned?

10-29-2009, 11:27 PM	#5 (permalink)
ZTEC Third Eye Open Join Date: Jan 2006 Location: Florida Posts: 1,737 Images: 3	That just means you had a proper track day! No worries.... __________________ GO: Vision Function Stage II Intercooled Bliss with Charlie's ECU magic and Ronin's Tenacity! STOP: DBA 4000's, Porterfield R4! TURN: Nitron S/A's Toyo RA1's 225/245 on Rota's!

10-29-2009, 11:40 PM	#6 (permalink)
lotus69f2 Registered User Join Date: Dec 2008 Location: Bethel, PA Posts: 482	Agree with above. If you are worried that tire pressures are too low look at the sides of the tread. If there is wear on the upright portions (as opposed to the rounded edge) then your pressures may be too low. It indicates the tires are rolling over under lateral G. I can't tell for sure looking at your picture, but it looks OK as far as that goes. . __________________ Kyle Kaulback '56 Mark VI '71 Type61mX '71 Type69 '72 Europa TC '74 Elan Plus2S 130/5 '91 M100 Elan '91 Type 106 Esprit X180R LotusSport 110 http://autos.groups.yahoo.com/group/PhillyLotus/ http://www.lotustalk.com/forums/f218...us-barn-75834/

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10-29-2009, 07:42 PM	#2 (permalink)
Uncle Sam #14 Sport Elise Join Date: Feb 2006 Location: Rockville, Maryland Posts: 862 Images: 2	Normal

10-29-2009, 09:33 PM	#3 (permalink)
Harix Registered User Join Date: Feb 2009 Posts: 52	That's normal from alot of Gs. Just drive it normally (don't need to clean it).

10-29-2009, 10:39 PM	#4 (permalink)
marcinr Registered User Join Date: Jul 2008 Location: San Francisco Bay Area Posts: 170	A lot of that rubber comes from the track itself, only some of it is yours. My tires look just like that after every track day, and it wears off in about 100 mi.

10-30-2009, 12:24 AM	#7 (permalink)
shinchan Registered User Join Date: Dec 2008 Posts: 17	Cheers guys. I guess I have full reason to take it for a drive again this weekend

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