8.1 inch rod in stock block/stroke 350 and -----

General engine tech -- Drag Racing to Circle Track

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Mark O'Neal
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Re: 8.1 inch rod in stock block/stroke 350 and -----

Post by Mark O'Neal » Wed Oct 11, 2017 1:25 pm

David Vizard wrote:
Tue Oct 10, 2017 2:05 pm
Mark,
Your comment:-
Finding someone that can build a motor that can't run is not all that hard to do..... :P :P


The definition of a motor is, I believe, something that can run. What I built here would be better described as a ring processing fixture.
DV
It can mean that. It can also mean giving, imparting, or producing motion or action.

I'll explain the emojees later.

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MadBill
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Re: 8.1 inch rod in stock block/stroke 350 and -----

Post by MadBill » Wed Oct 11, 2017 2:24 pm

Yes, as in "motoring" an engine with an electric dyno to measure friction.
Felix, qui potuit rerum cognscere causas.

Happy is he who can discover the cause of things.

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Re: 8.1 inch rod in stock block/stroke 350 and -----

Post by sanfordandson » Wed Oct 11, 2017 4:35 pm

David Vizard wrote:
Sat Oct 07, 2017 6:08 pm
For example the initial turning torque my 383 Chevy short block builds usually runs around 18-20 lbs-ft when done in a conventional fashion. P
This seems high. Are you using a thick ring pack?

The 383's I've done measure about 10 lbs-ft

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Re: 8.1 inch rod in stock block/stroke 350 and -----

Post by David Vizard » Thu Oct 12, 2017 3:17 pm

sanfordandson wrote:
Wed Oct 11, 2017 4:35 pm
David Vizard wrote:
Sat Oct 07, 2017 6:08 pm
For example the initial turning torque my 383 Chevy short block builds usually runs around 18-20 lbs-ft when done in a conventional fashion. P
This seems high. Are you using a thick ring pack?

The 383's I've done measure about 10 lbs-ft
1/16 -1/16 - 3/16 with finish as per ring manufacturers and it's about what you are getting done my way for a street build. My cup car motor turned at about 6 lbs-ft but it gets difficult to be precise here as I don't have a torque wrench that would read accurately at this low figure.
DV
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Re: 8.1 inch rod in stock block/stroke 350 and -----

Post by David Vizard » Thu Oct 12, 2017 3:22 pm

resurrectionjoe wrote:
Wed Oct 11, 2017 11:10 am
To bad the original poster didn't know about this stuff before he built his ring processing fixture, he could have saved himself a ton of time and effort by just pouring in a bottle.


OilExtreme.png
Joe,

Thanks for the plug!
DV
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Re: 8.1 inch rod in stock block/stroke 350 and -----

Post by piston guy » Thu Oct 12, 2017 3:56 pm

This has me thinking about a fixture to "precondition" toilet paper. :wink:

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Re: 8.1 inch rod in stock block/stroke 350 and -----

Post by GARY C » Thu Oct 12, 2017 8:31 pm

piston guy wrote:
Thu Oct 12, 2017 3:56 pm
This has me thinking about a fixture to "precondition" toilet paper. :wink:
Why would you want to wipe with pre sh!tted tp?
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Re: 8.1 inch rod in stock block/stroke 350 and -----

Post by kimosabi » Fri Oct 13, 2017 12:45 am

kimosabi wrote:
Wed Oct 11, 2017 8:16 am
Is this method a proven method?
Is this method a proven method used by others as well?

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Re: 8.1 inch rod in stock block/stroke 350 and -----

Post by David Vizard » Fri Oct 13, 2017 8:58 am

kimosabi wrote:
Fri Oct 13, 2017 12:45 am
kimosabi wrote:
Wed Oct 11, 2017 8:16 am
Is this method a proven method?
Is this method a proven method used by others as well?
Kimosabi,
Yes and No!
DV
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Re: 8.1 inch rod in stock block/stroke 350 and -----

Post by pamotorman » Fri Oct 13, 2017 9:31 am

OctaneNation wrote:
Tue Oct 10, 2017 1:02 pm
Rotational torque reduced from 37 ft-lbs to 14 ft-lbs resulted in the engine picking up 3.8 ft-lbs on the dyno in this test...
http://www.hotrod.com/articles/dyno-tes ... orsepower/
this would be important on a NASCAR restricted engine where every 1/2 HP counts but would it show up on a street driven engine ?? the auto factories do it to get 0.1 of a MPG on the govt. tests

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Re: 8.1 inch rod in stock block/stroke 350 and -----

Post by piston guy » Fri Oct 20, 2017 1:23 pm

GARY C wrote:
Thu Oct 12, 2017 8:31 pm
piston guy wrote:
Thu Oct 12, 2017 3:56 pm
This has me thinking about a fixture to "precondition" toilet paper. :wink:
Why would you want to wipe with pre sh!tted tp?
Same reason someone would run rings that were "pre lapped" to a different cylinder than they were to be used in.

user-17438

Re: 8.1 inch rod in stock block/stroke 350 and -----

Post by user-17438 » Fri Oct 20, 2017 5:27 pm

=D> =D> :lol: :lol:
piston guy wrote:
Fri Oct 20, 2017 1:23 pm
GARY C wrote:
Thu Oct 12, 2017 8:31 pm
piston guy wrote:
Thu Oct 12, 2017 3:56 pm
This has me thinking about a fixture to "precondition" toilet paper. :wink:
Why would you want to wipe with pre sh!tted tp?
Same reason someone would run rings that were "pre lapped" to a different cylinder than they were to be used in.

Mark O'Neal
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Re: 8.1 inch rod in stock block/stroke 350 and -----

Post by Mark O'Neal » Fri Oct 20, 2017 7:46 pm

piston guy wrote:
Fri Oct 20, 2017 1:23 pm
GARY C wrote:
Thu Oct 12, 2017 8:31 pm
piston guy wrote:
Thu Oct 12, 2017 3:56 pm
This has me thinking about a fixture to "precondition" toilet paper. :wink:
Why would you want to wipe with pre sh!tted tp?
Same reason someone would run rings that were "pre lapped" to a different cylinder than they were to be used in.
I wasn't gonna say it...... :lol:

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Re: 8.1 inch rod in stock block/stroke 350 and -----

Post by digger » Fri Oct 20, 2017 9:31 pm

Mark O'Neal wrote:
Fri Oct 20, 2017 7:46 pm
piston guy wrote:
Fri Oct 20, 2017 1:23 pm
GARY C wrote:
Thu Oct 12, 2017 8:31 pm


Why would you want to wipe with pre sh!tted tp?
Same reason someone would run rings that were "pre lapped" to a different cylinder than they were to be used in.
I wasn't gonna say it...... :lol:
elephant much?

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Re: 8.1 inch rod in stock block/stroke 350 and -----

Post by Warp Speed » Sat Oct 21, 2017 7:26 am

MTENGINES wrote:
Fri Oct 20, 2017 5:27 pm
=D> =D> :lol: :lol:
piston guy wrote:
Fri Oct 20, 2017 1:23 pm
GARY C wrote:
Thu Oct 12, 2017 8:31 pm


Why would you want to wipe with pre sh!tted tp?
Same reason someone would run rings that were "pre lapped" to a different cylinder than they were to be used in.
LOL

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