F1 'stickiness' (or lack thereof...) - ZR-1 Net Registry Forums

Schrade · 04-05-2013

I got new F1's, and the rears broke loose the other day. Kinda' surprised me here. Hammer was NOT to the floor, and blacktop was dry. THen later, I saw hardly any markings on the road.

This happen to anyone else with this model rubber on the corners? Is F1 a 'hard' rubber?

BigJohn · 04-05-2013

Cold pavement and cold tires no sticky!!!

Paul Workman · 04-05-2013

If you're referring to the GY F1-GS-D3s, like Big John said, "no sticky".

I've had them for about 5 years now, and I find that much below 40 degrees they're pretty pathetic. And, it gets worse as temps drop from there, I find.

p.

PhillipsLT5 · 04-05-2013

Date code on tire?

Schrade · 04-05-2013

Quote:

Originally Posted by PhillipsLT5

Date code on tire?

This a date code?
T312617 GP400A (different on fronts - they had to be ordered)

M63C 6FHR

Did I get 'old' tires???

ZR1North · 04-05-2013

Interesting! I have the same observation/complaint. I take the point that the warmer the pavement and tire, the better; but I expected better from such an expensive tire.

Last October on a cool dry afternoon, I accelerated hard in 2nd to activate the secondaries as I had done at least 25 times before in the same location (on a up-hill grade) and much to my surprise, the back end broke loose - unlike the previous 20+ times when I did it with cheap Sumis on - often under the same temperature conditions. $4,500 later with new wheels and many rear suspepension parts, I am finally undoing the damage from that fateful October afternoon.

WIth less than 200 miles on the F1s, I'll keep them and hope I am happier at the end of the summer. At the moment though, I am not impressed!!!!

GOLDCYLON · 04-05-2013

All I can say is sticking em in AZ is not a problem. I love em

BigJohn · 04-05-2013

P ZERO AND MISHY'S NO STICKY WHEN COLD!!!

Blownrunner · 04-05-2013

Quote:

Originally Posted by ZR1North

Interesting! I have the same observation/complaint. I take the point that the warmer the pavement and tire, the better; but I expected better from such an expensive tire.

Last October on a cool dry afternoon, I accelerated hard in 2nd to activate the secondaries as I had done at least 25 times before in the same location (on a up-hill grade) and much to my surprise, the back end broke loose - unlike the previous 20+ times when I did it with cheap Sumis on - often under the same temperature conditions. $4,500 later with new wheels and many rear suspepension parts, I am finally undoing the damage from that fateful October afternoon.

WIth less than 200 miles on the F1s, I'll keep them and hope I am happier at the end of the summer. At the moment though, I am not impressed!!!!

Did you damage something?

Schrade · 04-06-2013

Quote:

Originally Posted by ZR1North

Interesting! I have the same observation/complaint. I take the point that the warmer the pavement and tire, the better; but I expected better from such an expensive tire.

Last October on a cool dry afternoon, I accelerated hard in 2nd to activate the secondaries as I had done at least 25 times before in the same location (on a up-hill grade) and much to my surprise, the back end broke loose - unlike the previous 20+ times when I did it with cheap Sumis on - often under the same temperature conditions. $4,500 later with new wheels and many rear suspepension parts, I am finally undoing the damage from that fateful October afternoon.

WIth less than 200 miles on the F1s, I'll keep them and hope I am happier at the end of the summer. At the moment though, I am not impressed!!!!

I had 315 Sumis on an LT1, and they were hard to break straight.. Granted, only an LT1 2,73, but it was tight - with a good burn... They held, and would still chirp 3rd.

The F1's didn't even sound off when they broke...

You hit the curb there ZR1North?

04-05-2013	#1
Schrade Join Date: Dec 2012 Location: NC Posts: 1,783	F1 'stickiness' (or lack thereof...) I got new F1's, and the rears broke loose the other day. Kinda' surprised me here. Hammer was NOT to the floor, and blacktop was dry. THen later, I saw hardly any markings on the road. This happen to anyone else with this model rubber on the corners? Is F1 a 'hard' rubber?

04-05-2013	#2
BigJohn Join Date: Feb 2012 Location: Ledyard,CT Posts: 8,301	Re: F1 'stickiness' (or lack thereof...) Cold pavement and cold tires no sticky!!!

04-05-2013	#3
Paul Workman Join Date: Nov 2007 Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri Posts: 6,466	Re: F1 'stickiness' (or lack thereof...) If you're referring to the GY F1-GS-D3s, like Big John said, "no sticky". I've had them for about 5 years now, and I find that much below 40 degrees they're pretty pathetic. And, it gets worse as temps drop from there, I find. p.

04-05-2013	#4
PhillipsLT5 Join Date: Aug 2005 Location: Scottsdale, AZ Posts: 2,446	Re: F1 'stickiness' (or lack thereof...) Date code on tire?

04-05-2013	#6
ZR1North Join Date: Feb 2007 Location: Komoka, Ontario, Canada Posts: 596	Re: F1 'stickiness' (or lack thereof...) Interesting! I have the same observation/complaint. I take the point that the warmer the pavement and tire, the better; but I expected better from such an expensive tire. Last October on a cool dry afternoon, I accelerated hard in 2nd to activate the secondaries as I had done at least 25 times before in the same location (on a up-hill grade) and much to my surprise, the back end broke loose - unlike the previous 20+ times when I did it with cheap Sumis on - often under the same temperature conditions. $4,500 later with new wheels and many rear suspepension parts, I am finally undoing the damage from that fateful October afternoon. WIth less than 200 miles on the F1s, I'll keep them and hope I am happier at the end of the summer. At the moment though, I am not impressed!!!!

04-05-2013	#7
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,120	Re: F1 'stickiness' (or lack thereof...) All I can say is sticking em in AZ is not a problem. I love em __________________ GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V