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Low-compression pistons on the street?

How to make it go fast

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Postby GPSMatt » Tue Dec 04, 2007 11:05 pm

KTA wrote:I get my marine pistons from cummins. 8)


any one got a P/N for hte marine pistons
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Postby dpuckett » Fri Dec 07, 2007 5:38 pm

Find someone with a marine 5.9 and get the engine serial number and CPL from it. Then you can go to Cummins and see what they got.

DP
His- 93 W250 club cab LE, auto to Getrag conversion, piston lift pump, 3.54 LSD. 400k+
Hers- 04 QC 4x4. Built auto, Triple Dog, Air Dog. Funny Round truck that aint so quiet.
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Postby ford69557ci » Fri Dec 07, 2007 6:47 pm

well who on here has a marine 5.9 ???? i would like a set of them for my project. i really dont see the advantage of aftermarkets piston cuz the cummins ones seem to hold of power.
92 w250, NV4500, D80, maxed pump, AFC gone, extended fuel screw, more to come.
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ford69557ci
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Postby GPSMatt » Fri Dec 07, 2007 7:12 pm

i here that there is some with teflon coated skirts. its deff the cheap way out on some low comp pistons the arias ones are like 1500 or more i think
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85 F350 crew cab 4x 5.9
95 Lightning
85 GT
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Postby ford69557ci » Fri Dec 07, 2007 7:57 pm

factory coate ones??? that would be sweet i want the part number for those
92 w250, NV4500, D80, maxed pump, AFC gone, extended fuel screw, more to come.
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ford69557ci
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Postby bgilbert » Fri Dec 07, 2007 8:04 pm

Serial number 45432843 CPL 2208 for 370HP marine engine.
Bill Gilbert
85 D350 crew with 90 6BT intercooled Getrag 3.07's
93 D350 single cab Getrag 3.54's.
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Postby ford69557ci » Fri Dec 07, 2007 8:10 pm

thanks for the numbers i am goin to order a set tommorrow
92 w250, NV4500, D80, maxed pump, AFC gone, extended fuel screw, more to come.
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Postby GPSMatt » Fri Dec 07, 2007 9:11 pm

any one kno if those are the teflon coated ones? thanks for the p/n
86 F350 idi
85 F350 crew cab 4x 5.9
95 Lightning
85 GT
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fuel screw!!!!
 
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Postby ford69557ci » Fri Dec 07, 2007 9:15 pm

i will find out monday my local cummins is closed on weekends
92 w250, NV4500, D80, maxed pump, AFC gone, extended fuel screw, more to come.
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Postby KTA » Sat Dec 08, 2007 7:59 am

3800756 Is the piston kit part number for 15.3:1 teflon coated skirt pistons.
Fleet of Junk: 1989 D350 627rwhp 1300 tq B-1/Hx60 twins, KTA pump/injectors, ported head, BIG fuel supply. 13.75@ 109.5mph 1/4: 1992 W350 Cab-chasis, 1993 W350 ext cab cust.370 inj Hx40/16cm 290rwhp hydroboost brakes,1984 D350 crew-cab another project.
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Postby Begle1 » Sat Dec 08, 2007 9:21 am

What's the benefit to teflon coating?
1990 D-250 Regular Cab: Tweaked injection pump, built transmission, a cataclysmic charlie foxtrot of electronics, the most intense street-ran water injection system in the country, and some more unique stuff.
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Postby KTA » Sat Dec 08, 2007 9:47 am

Less piston slap and less skirt scuffing.
Fleet of Junk: 1989 D350 627rwhp 1300 tq B-1/Hx60 twins, KTA pump/injectors, ported head, BIG fuel supply. 13.75@ 109.5mph 1/4: 1992 W350 Cab-chasis, 1993 W350 ext cab cust.370 inj Hx40/16cm 290rwhp hydroboost brakes,1984 D350 crew-cab another project.
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Postby ford69557ci » Sat Dec 08, 2007 9:54 am

Once again KTA is the man. thanks for that number
92 w250, NV4500, D80, maxed pump, AFC gone, extended fuel screw, more to come.
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Postby GPSMatt » Wed Dec 12, 2007 11:10 am

ford69557ci wrote:i will find out monday my local cummins is closed on weekends



got a price on em yet?
86 F350 idi
85 F350 crew cab 4x 5.9
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85 GT
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fuel screw!!!!
 
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Postby ford69557ci » Sat Dec 15, 2007 2:07 am

no i have not had a chance to call them i have been retarded busy with gettin some chassis work done on my s10
92 w250, NV4500, D80, maxed pump, AFC gone, extended fuel screw, more to come.
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