bore size 88mm
01-21-2010, 07:01 AM
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bore size 88mm
i have a h22a4 in my del sol, so my bore size is aftermarket 87.75mm and have high compression on it (type s pistons) right now i'm drive on it but i put turbo in the car so i want to change the pistons my question is is safety bore 88mm to forced induction or the block engine is to weak on this bore (88mm) thnx's
01-21-2010, 06:46 PM
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Re: bore size 88mm
for boost, u can go for 88mm bore with stock block, then put low comp piston eg; 8:++ CR but dont use forged piston..if forged piston, must run with sleeve block.
anyway, let me know, have a problem u run 87.75mm type s piston with stock block?? i plan to use 87.5 @ 87.75mm in my stock h22a block, but i heard it's high risk
anyway, let me know, have a problem u run 87.75mm type s piston with stock block?? i plan to use 87.5 @ 87.75mm in my stock h22a block, but i heard it's high risk
01-22-2010, 02:14 AM
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Re: bore size 88mm
You can't bore the stock H-series block, since they have different FRM (Fiber Reinfornced Material) sleeves, instead of the conventional iron/steel. Boring FRM will absolutely destroy the block. Instead, the entire cylinder sleeve is replaced with ductile iron sleeves (or other material) which is called "sleeving".
With a sleeved block, you can basically run any forged piston you want (as well as bore it out), as opposed to only one aftermarket piston that you can run in a stock H-series, which is the Mahle Gold's.
With a sleeved block, you can basically run any forged piston you want (as well as bore it out), as opposed to only one aftermarket piston that you can run in a stock H-series, which is the Mahle Gold's.
01-22-2010, 04:54 AM
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Re: bore size 88mm
good luck with it. a friend of mine did a high compression turbo and it was ok it made 397 to the wheel but later he messed up the oil rings.
01-22-2010, 05:50 AM
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Re: bore size 88mm
You can't bore the stock H-series block, since they have different FRM (Fiber Reinfornced Material) sleeves, instead of the conventional iron/steel. Boring FRM will absolutely destroy the block. Instead, the entire cylinder sleeve is replaced with ductile iron sleeves (or other material) which is called "sleeving".
With a sleeved block, you can basically run any forged piston you want (as well as bore it out), as opposed to only one aftermarket piston that you can run in a stock H-series, which is the Mahle Gold's.
With a sleeved block, you can basically run any forged piston you want (as well as bore it out), as opposed to only one aftermarket piston that you can run in a stock H-series, which is the Mahle Gold's.
01-22-2010, 05:52 AM
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01-22-2010, 05:59 AM
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Re: bore size 88mm
turbo pistons and maybe je rings your stock rings will melt soon anyways. Personally i wouldnt bore it out unless you go big and big 4 some sleeves. Trust me been there done that!
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01-22-2010, 07:49 AM
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Re: bore size 88mm
01-22-2010, 01:27 PM
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Re: bore size 88mm
just leave the god damn motor the way you have it and put a reasonable sized turbo on it with GOOD tuning and low boost. you gotta pay big bucks if you want big boost!
01-23-2010, 09:07 AM
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Re: bore size 88mm
h22a4 block engine
h22a head ported & springs and reteiners
rods eagle
pistons nippon racing type s 11:0 c/r
stocks cams
skunk2 manifold pro-series
stock injectors (prelude jdm)
accord tranny
LSD
flywheel & clutch stage 3 XTD
t4 turbo borg warner a/r .60 9psi boost
ecu:
p28 ecu chipped to h22 turbo
wideband say to 7000rpm 11.5
01-23-2010, 01:20 PM
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Re: bore size 88mm
This new thing called Drop Shipping...............
Anyway, if your going to go to all the trouble of having new sleeves put in, it might be cheaper to get the F20b Bare block. i think that is code. Those are the normal h22 block, I think its iron block on that so you can bore that.
Anyway, if your going to go to all the trouble of having new sleeves put in, it might be cheaper to get the F20b Bare block. i think that is code. Those are the normal h22 block, I think its iron block on that so you can bore that.
01-24-2010, 06:40 AM
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01-25-2010, 05:46 AM
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01-25-2010, 03:36 PM
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