A couple questions about my new motor

gabe3586

New Member

Aug 22, 2005

40

0

0

Feb 25, 2007

#1

• Feb 25, 2007

• #1

I picked up another motor for a decent price the other day and had a couple questions. First, the guy said theres forged keith Black 8:1 compression pistons in there, Could I be able to tell the difference between a Hypertectic piston and a forged piston by just pulling off the head? or would I actually have to take the piston out? Second, Im planning on spraying a 100 shot but wasnt sure how good it would do on low compression, would you guys recomend getting higher compression pistons? or does it even matter that much?

Thanks in advance

 

JChalfan

Member

Nov 27, 2002

551

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16

Bellevue, WA

Feb 25, 2007

#2

• Feb 25, 2007

• #2

The only logical solution would be to get a supercharger to go with those low-compression forged pistons.

8:1 seems pretty low for a naturally aspirated motor. If I were building up a motor, I would probably go for at least 9:1.

 

L

lvboost

New Member

Feb 19, 2007

32

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mass

Feb 25, 2007

#3

• Feb 25, 2007

• #3

keithblack don't make a forged piston

 

W

~-Ws50's916-~

New Member

Aug 5, 2006

27

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I Live in West Sacramento, Soon to be Citrus Heigh

Feb 26, 2007

#4

• Feb 26, 2007

• #4

LOL, YEA I DONT THINK THEY MAKE FORGED. BUT MAYBE..... YEA, SUPERCHARGE IT!~~~ OR TURBO

 

302RollinHard

New Member

Sep 26, 2005

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Columbus, OH

Feb 26, 2007

#5

• Feb 26, 2007

• #5

First off Keith Black does make forged slugs. Second, nitrous don't care about compression ratio. Third and not to bash, I would like to see an 8:1 compression ratio engine (didn't know they went that low, it could be possible). If your compression is that low a blower should be in your future. You should be able to tell the difference by looking at the piston by pulling the head, yes. Go to summits site and look at the different pistons (forged and hypers) that they have.

 

goodfastncheap

Member

Dec 25, 2006

100

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17

Bellevue, NE

Feb 26, 2007

#6

• Feb 26, 2007

• #6

If this were my motor (given unknown mileage and maintenance history) the first thing I would do is completely disassemble it and hone, ring and replace the main and rod bearings. You can get a real good look at the pistons then.