All Motor / Naturally Aspirated No power adders

Ring Gap Help please

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Old Nov 14, 2012 | 05:04 PM
  #1  
Sukka650's Avatar
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Default Ring Gap Help please

Hey whats going on guys I need some help im in the process of building my motor ive ran into alots of problems more then I expected but i think im good now and im ready to assemble the bottom end i need some help with the ring gap first of all heres my set up

b18c1 block golden eagle sleeved
itr crank balanced and micropolished
cp pistons 12.5 comp 85mm
crower rods
itr/gsr oil pump
itr head port and polished
supertech flat valves
supertech valvesprings
supertech titanium retainers
supertech valve guides
blox c cams
blox cam gears
skunk2 manifold cut open and ported and matched to head
68mm throttle body matched to manifold

plan on runing 440 rc injectors with aem rail and regulator walbaro 255 pump and smsp header is the plan and some direct port nitrous 100shot but the nitrous is not for sure still debating if i want to or not

now i did some basic math from the cp guide and i came up with for top ring .015 and for the second ring .021 and cp says oil ring .15 min but do not file but what if its smaller what do i do then?? so anyways what do you guys think of the ring gap car is gona be used to drag race wont be daily driven mayb here and there on the weekend to drive 100 miles or so to friends house if i feel like taking it to race out there any help would be greatly apreciated thank you
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Old Nov 14, 2012 | 09:44 PM
  #2  
GIZZ - EXV's Avatar
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Default Re: Ring Gap Help please

It's .015" minimum, not .15"

Does that help?

100 shot? maybe go a lil bigger on the compression rings.
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Old Nov 15, 2012 | 02:30 PM
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Sukka650's Avatar
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Default Re: Ring Gap Help please

sorry i ment to write that how much bigger would you recomend for my setup? and 100 shot nitrous maybe still thinking about it
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Old Nov 16, 2012 | 08:29 PM
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GIZZ - EXV's Avatar
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Default Re: Ring Gap Help please

For stock 81mm bore non turbo or nitrous cp recommend .016 top ring, with nitrous they recommend .0175. And they say .004-.008 larger on 2nd ring. They're the experts, although I think they would err on the side of caution. Nothing wrong with that, better safe than sorry.
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