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TECHNICAL => ALL MOTOR TALK => Topic started by: vinny e on April 23, 2018, 11:33:00 AM

Title: Squish
Post by: vinny e on April 23, 2018, 11:33:00 AM

Building 1441 and one of my piston squish mesurement comes out @ .039.  (Used 2 pieces of solder and averaged them ). Would this be to tight??? 

Title: Re: Squish
Post by: B.Eskedal on April 23, 2018, 01:42:20 PM

No
I use 0.8mm (032) on my 1441 with stock rods.

Title: Re: Squish
Post by: vinny e on April 23, 2018, 05:17:56 PM

Thank you I’m a tad paraanoid

Title: Re: Squish
Post by: RansomT on April 23, 2018, 06:12:07 PM

But the better question would be what is your PTV clearance?

Title: Re: Squish
Post by: vinny e on April 24, 2018, 09:23:51 AM

Thanx for the heads up,  next measurement,  built it last time tight but had issues (wasn’t nice on street). Only race once or twice a year so trying to make it nicer for street..  found out what all race motor ment! 

Title: Re: Squish
Post by: MJ Williams on April 24, 2018, 10:45:21 AM

I use 0.8mm (032) on my 1441 with stock rods.

What kind of rpm are you turning with .8mm?

Title: Re: Squish
Post by: B.Eskedal on April 26, 2018, 02:07:48 AM

I have my rev limiter at 12000rpm.

Title: Re: Squish
Post by: MJ Williams on April 26, 2018, 11:32:14 AM

 :tu: :tu:

Title: Re: Squish
Post by: speedduck on April 26, 2018, 11:37:56 AM

One time i used 0.7mm with stock rods, i had Wiseco pistons, part number printed on top of piston,
when taking the engine apart later, i could read the number from the head, backwards