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-   -   Live from INDY 2016 (https://classracer.com/classforum/showthread.php?t=63431)

FED 387 09-04-2016 06:46 PM
Re: Live from INDY 2016
 
So every Cylinder was .003 too big on the stroke??? Seems maybe they needed to pull a head and check again. .003 could have Been worn bearings. Nhra has some really exact measuring stuff --- no glue on the deck when they put the dial indicator on the deck surface nothing like that huh? Hell A Dollar bill is .003?? I know rules are rules but maybe the tech guy just "isn't that good a machinist" Fed 387

FED 387 09-04-2016 06:49 PM
Re: Live from INDY 2016
 
Actuall I just checked a dollar bill is.0043. Wow!!!!!!!!

Rick Leininger Jr. 09-04-2016 07:03 PM
Re: Live from INDY 2016
 
I was in Phoenix many years ago and watched a guy trying to measure stroke on a stocker with a head off using a caliper, and getting. 1/2" more stroke than he should have.

He must've figured it out eventually as the competitor passed.

Shaun Quill 09-04-2016 07:06 PM
Re: Live from INDY 2016
 
All Access is Great!!!!!!!!!

Mark Yacavone 09-04-2016 07:58 PM
Re: Live from INDY 2016
 
Quote:
Originally Posted by FED 387 (Post 513787)
So every Cylinder was .003 too big on the stroke??? Seems maybe they needed to pull a head and check again. .003 could have Been worn bearings. Nhra has some really exact measuring stuff --- no glue on the deck when they put the dial indicator on the deck surface nothing like that huh? Hell A Dollar bill is .003?? I know rules are rules but maybe the tech guy just "isn't that good a machinist" Fed 387
Dick, It's plus or minus .015 allowed to start out with..so it was then +.018.
Also , if Travis was there ,you can be sure it was checked accurately..more than once.

FED 387 09-04-2016 08:12 PM
Re: Live from INDY 2016
 
Ya I know but wow less than .49 inches total. Your right it's not in the acceptable range. All because of 3 thou. Now is this cheating or just an honest mistake I know it makes no difference but by a hair.

Crew Chief 09-04-2016 08:13 PM
Re: Live from INDY 2016
 
Quote:
Originally Posted by FED 387 (Post 513787)
So every Cylinder was .003 too big on the stroke??? Seems maybe they needed to pull a head and check again. .003 could have Been worn bearings. Nhra has some really exact measuring stuff --- no glue on the deck when they put the dial indicator on the deck surface nothing like that huh? Hell A Dollar bill is .003?? I know rules are rules but maybe the tech guy just "isn't that good a machinist" Fed 387
Since the rulebook allows +/- .015 on stroke, that would make it .018 over the spec. Maybe the crankshaft grinder "isn't that good a machinist"

FED 387 09-04-2016 08:40 PM
Re: Live from INDY 2016
 
Exactly what is the procedure to measure stroke?

MR DERBY CITY 09-04-2016 08:52 PM
Re: Live from INDY 2016
 
Quote:
Originally Posted by mark yacavone (Post 513795)
dick, it's plus or minus .015 allowed to start out with..so it was then +.018.
Also , if travis was there ,you can be sure it was checked accurately..more than once.
amen....

Bill Bogues 09-04-2016 08:53 PM
Re: Live from INDY 2016
 
What gives in the race between Jimmy Hildago and Mike Cotton in rd 3 of stock.It showed Mike going red to Jimmy , but rd 4 has Mike in it.Did something happen to Jimmy?


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