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BIG BOSS HOSS
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Discussion Starter · #1 ·
Stats:

'85) 7mgte bought from nix99 in 5/2002 w/approx milage 109k - now with ~130k, .005 mill off head, HKS 1.2mm MHG, 10-30 Mobil 1 oil, warm tested:

CYL - PSI
1 - 155
2 - 155
3 - 153
4 - 155
5 - 152
6 - 152

'84) 6mgte bought from "Japanese Engine" in Auburn WA in 10/02, approx milage - unknown, never been opened, cheap dino 10-30 oil, warm tested:

CYL - PSI
1 - 160
2 - 150
3 - 165
4 - 165
5 - 155
6 - 150

I'm pretty happy with all the numbers. :)
 

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gotta have 2

I would be so happy w/those numbers. And 2 MK II's as well as :clap: :rockon: both 6&7mgte's. Very happy for you and those numbers too :D

I may have a 2nd 84 P-type I was offered for $2k 8)
 

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i really need to test mine... whats a "decent" number for an 82?

i know i know, i should look in my haynes, but its in the garage. :?
 

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Haynes compression

Curious about the compression?

Haynes says

79'-81' 156 psi
82'-86' 164
87'-90' 156
91'-92' 171
turbo 87'on 142

min-128
max difference-14
 

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Just a quick add on here.

Compression test vary quite often by who's gauge is being used.Look for even #'s with a max.10% variance.

Had an engine once at Nix.Tested 180 on the tester we had.Customer installs this engine,runs good,but his gauge says 110.He calls and blows a friggin gasket,calling me a liar,among a few other choice words.Sceduled the guy to show up the next day.Had Nix's gauge,his gauge,my personal gauge from home.Nix-180,his-110,mine-170.He hung his head,apologized,bought some more parts. 8)


WADE-Nice #'s keep up the good work :wink:
 
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