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Author Topic:   How cold would you run in???
Ryan Wilke
Gearhead

Posts: 1115
From: Stanton, Michigan 49707
Registered: Oct 2000

posted 10-24-2002 09:18 AM     Click Here to See the Profile for Ryan Wilke   Click Here to Email Ryan Wilke     Edit/Delete Message   Reply w/Quote
Not considering the difficulty in getting traction at lower temperatures, what do most of you guys think is the low temperature limit to safely crank on an "off-road" HiPo engine to 6K - 7K rpms?

Because of most of us using aluminum parts (which shrinks quite a bit when cold) and that we're apt to have fairly loose 0.025" - 0.035" bearing clearances, I'm thinking that running under 50*F would dramatically increase the risk of hurting the engine....

What's your limit????????


Ryan

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Just Strokin
Gearhead

Posts: 754
From: Tuscaloosa, Alabama
Registered: Dec 2001

posted 10-24-2002 09:27 AM     Click Here to See the Profile for Just Strokin   Click Here to Email Just Strokin     Edit/Delete Message   Reply w/Quote
I have raced at some of the local drag stricks when the outside temp was barely above 30*.

As long as the engine is warmed up properly along with the transmission and rear end, the low temps should have very little bearing on the clearances.

FYI, wind chill is not related to anything that doesn't perspire. Metal at 30* in a 90mph wind is still 30*.

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Moneymaker
Administrator

Posts: 18704
From: Lyons, IL, USA
Registered: May 99

posted 10-24-2002 10:08 AM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Warmed up to 120 degrees or better, and with the rest of the drive train warm, I have raced in 30 degre weather with no adverse effects. Traction was a serious probelm though.

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Alex Denysenko
Co-Administrator and Moderator

NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Professional Manwhore
The Barry of BarrysGrrl

Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"

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kid vishus
Gearhead

Posts: 3894
From: middle of NC
Registered: Oct 2000

posted 10-24-2002 12:25 PM     Click Here to See the Profile for kid vishus   Click Here to Email kid vishus     Edit/Delete Message   Reply w/Quote
I feel that so long as the motor and related drivetrain is warmed well, I would run it. Traction (or lack of) on the other hand would be of more concern to me.

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Ryan Wilke
Gearhead

Posts: 1115
From: Stanton, Michigan 49707
Registered: Oct 2000

posted 10-24-2002 04:50 PM     Click Here to See the Profile for Ryan Wilke   Click Here to Email Ryan Wilke     Edit/Delete Message   Reply w/Quote
Well Guys.... They're calling for a HIGH of 49*F this weekend. However, by using a proper warm-up makes a bunch of sense... Thanks for your experience & advice, Guys!

Regarding traction,,,, I've been told that the ideal traction temp for slicks and/or track surface is 90*F. Even with a long burnout, I'm not sure I can get the slicks warm enough to get any decent 60'ers......

Ryan

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Moneymaker
Administrator

Posts: 18704
From: Lyons, IL, USA
Registered: May 99

posted 10-24-2002 05:21 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
I hope the track has some propane blow torches.

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Alex Denysenko
Co-Administrator and Moderator

NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Professional Manwhore
The Barry of BarrysGrrl

Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"

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clevelandstyle
Gearhead

Posts: 494
From: Connersville, IN
Registered: Jul 2001

posted 10-24-2002 09:09 PM     Click Here to See the Profile for clevelandstyle     Edit/Delete Message   Reply w/Quote
I raced at Muncie Dragway last weekend and the temp was in the low 30s in the evening. I had to scrap frost off of my truck windows after the race. :

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Ben
Grabber Green '70 Mach I 351C 4V
Robbin Egg Blue '79 Fairmont 351C 4V

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TomP
Gearhead

Posts: 4637
From: Delta BC Canada
Registered: Dec 99

posted 10-24-2002 10:29 PM     Click Here to See the Profile for TomP   Click Here to Email TomP     Edit/Delete Message   Reply w/Quote
Ice racers don't seem to blow up too much stuff. It's simply a matter of not running hard while stone cold... you may need to spend more time warming the car up, run thru the gears on jackstands, etc.

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Ryan Wilke
Gearhead

Posts: 1115
From: Stanton, Michigan 49707
Registered: Oct 2000

posted 10-25-2002 08:50 AM     Click Here to See the Profile for Ryan Wilke   Click Here to Email Ryan Wilke     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by TomP:
Ice racers don't seem to blow up too much stuff.

Good Point, TomP!

Alex, regarding propane torches.... I highly doubt they'd bring them out.
(1) because it's the last day the track will be open for '02;
(2) because it's just a TnT outing;
(3) since Mid-Michigan Motorplex turned NHRA, the attention to the track surface has gone down.

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mustangzrule
Journeyman

Posts: 87
From: Orion, MI
Registered: Sep 2002

posted 10-25-2002 09:59 AM     Click Here to See the Profile for mustangzrule   Click Here to Email mustangzrule     Edit/Delete Message   Reply w/Quote
You might want to run your car at low speed around the pit a few times then shut it down to take advantage of the cooling effect on the intake for more HP. Not that the lack of traction will require more power, but it will save on fuel. The engine will stay warm for quite a while after you shut down.

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Moneymaker
Administrator

Posts: 18704
From: Lyons, IL, USA
Registered: May 99

posted 10-25-2002 02:28 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Tell the "old battle axe" that we'll give her some left over discount coupons to Maxfield's if she preps the track.

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Alex Denysenko
Co-Administrator and Moderator

NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Professional Manwhore
The Barry of BarrysGrrl

Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"

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Ryan Wilke
Gearhead

Posts: 1115
From: Stanton, Michigan 49707
Registered: Oct 2000

posted 10-25-2002 04:38 PM     Click Here to See the Profile for Ryan Wilke   Click Here to Email Ryan Wilke     Edit/Delete Message   Reply w/Quote
LOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLLOLOLOOLOLOLOLOLOLOLOOLOLOLOLOLOLOLOLOLOLOLOL LOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOLOL
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THANKS, ALEX!! THAT MADE MY DAY!!!!


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Moneymaker
Administrator

Posts: 18704
From: Lyons, IL, USA
Registered: May 99

posted 10-25-2002 05:04 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote

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Alex Denysenko
Co-Administrator and Moderator

NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Professional Manwhore
The Barry of BarrysGrrl

Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"

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GTS Racing
Journeyman

Posts: 68
From: Thor, Iowa 50591
Registered: Dec 2000

posted 10-25-2002 09:21 PM     Click Here to See the Profile for GTS Racing   Click Here to Email GTS Racing     Edit/Delete Message   Reply w/Quote
26 degrees last saturday. Corrected altitude -600 feet below sea level. Sixty foot times where not the best I ever had, but close. Lane to lane a bit off. A long burnout, not recommended. Ran the fastest pass ever 7.016 with a 1.437 60'. Air pressure in tire a little lower than I would have liked but I made it hook and it did not skate around on the top end.

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Moneymaker
Administrator

Posts: 18704
From: Lyons, IL, USA
Registered: May 99

posted 10-25-2002 11:39 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Brrrrr!

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Alex Denysenko
Co-Administrator and Moderator

NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Professional Manwhore
The Barry of BarrysGrrl

Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"

IP: Logged

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