4g93t engine build for gti stuck on a few choices

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svanh1993

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Feb 9, 2015
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Rockhampton 4700 Qld
hey guys currently building my new motor for my satria old one finally let go with the high compression set up and 14 psi nearly lasted two years lol .un opened motor and a setup i fabricated my self .now for the new engine build1993 lancer gsr 4g93 dohc motorgoodies I have so far4g93t complete motor no bolt onebrand new maxspeeding 800hp rated forged rods with ARP 2000 bolts. measures 133.5mm center to center and 21mm gudgeon pin holeby working it out with this rods I'm hoping to go arias Honda b16 forged pistons I'm fairly confident it will work as they are 1mm lower from top to center of the gudgeon pin skirt may need to be trimmed ? gsr run a 19mm so is 1.5mm difference than the 21mm but may work as gsr pistons are tallerwhat did you guys have work with 21mm gudgeon pins and 133.5mm rod bighole center to gudgeon center ? my machine shop is willing to machine the tops if need be but hoping it will work out in the end ? hoping the valve cut outs may line up finenew felpro 2 piece mls head gasket forgot the thicknessbrand new seals for the head can seals the lotsticking with the old turbo for now gt2871 was fun on 14psi and its efficiency is around 22psi so 20 will be a lot better for itnew 565cc injectorsand got some new ARP 3sgte head studsI'm stuck on main studs and main bearings I hear acl restarted up the shop so will be available again from now .are evo main studs the same that it may be a upgrade for stronger main studs ? chasing something like ARP or equivalent. want a strongbottom end as eventually will throw a gt30 in some cams and maybe 1000cc injectors and e85upgrading a fwd gearbox to handle the power ATM its a standard satria gti box open diff f5m22 and will be needing stronger cvsfuelpump will be a wwlbro gs450 455lph e85safe pump .what do you guys think ? also will be running a evo 6 ecu and patch loom for the new setuppistons are my main concern and main studscheers alex
 
i'm running mazda b6 head bolt factory mains spool forged rods and cp pistons to suit (bought as a package,)

looked into doing the longer rod with honda pistons but didn't have time/money to experiment.
provided you measurment from center of big end to top of piston are the same. they'll fit and not hit the head valve cutouts should be about the same (depends on valve angle)
 
yeah that's what I'm stuck on you have the turbobVTEC piston and then the standard turbo aftermarket for non vtec both forged just unsure if the angle will be wrong and hit valves I doubt it should just abit scared to order them and it being wrong my machine shop can machine pistons for 100$ a piston
 

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