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Forum nameTurbo/Nitrous Tech
Topic subjectHelp me find out which compression pistons I have.
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i8&topic_id=30068
30068, Help me find out which compression pistons I have.
Posted by 96venger, Aug-28-02 12:41 PM
Ok when I did a compression check I got 195 200 200 200.
I was supposed to have 8.5:1 pistons.
I have the JE sheet that came with them here is what is says.

Piston part # 168612
Head Desc. ECB/ECC
Displacement 123 Cubic inches
Piston type Dish
Bore 3.464
Stroke 3.268
Rod length 5.470
Dish Depth .020
Comp. Dist 1.236

Int .100 25 Exh .100 25
Valve pocket measured from deck
.........................................
Groove Land
TOP .048 .250
2nd .048 .150
BOTTOM .119 .090
...........................................
PIN DIA .827
PIN Length 2.500
JE .063 Wire Locks
..........................................
Piston weight 338 grams






Any way if any of this can tell me which comp. pistons I have can someone tell me.

Thanks

30069, RE: Help me find out which compression pistons I have.
Posted by Dave_FL, Aug-28-02 12:48 PM
Well 8:6:1 compression is around 180. So i am guessing you have 8:8:1.
30070, RE: Help me find out which compression pistons I have.
Posted by 992gnt, Aug-28-02 01:17 PM
Those are 8.8:1 pistons. Matches my spec sheet line for line.


30071, RE: Help me find out which compression pistons I have.
Posted by 96venger, Aug-29-02 09:17 AM
Thanks man but that kind of pisses me off because when I ordered my bottom end kit from howell, I ordered 8.5:1

Whats going on with this company.
30072, RE: Help me find out which compression pistons I have.
Posted by Dave_FL, Aug-29-02 01:43 PM
Theres nothing wrong with 8:8
30073, RE: Help me find out which compression pistons I have.
Posted by XtremeRS, Aug-29-02 02:12 PM
What? Howell sent you the wrong parts? hmm wierd.. (hehe, sorry guys, couldnt resist :P ) Yeah, 8.8 should be fine for you, maybe even just a tad more power than the 8.5's..thats always good :)
30074, RE: Help me find out which compression pistons I have.
Posted by HadesOmega, Aug-29-02 09:08 PM
but dang 9.6:1 is like 215 perfect that's pretty close hehe... damn I have 10.5:1 pistons haha wonder what that's gonna go out to when I get em in I heard 250....