Honda Prelude Forum
 
Go Back   Honda Prelude Forum > Tech-Talk > 5th Gen Honda Prelude

Thread Title
h22a high compression clearance

 
Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 08-27-2010, 06:16 PM
Bronze Member
 
Join Date: Dec 2008
Location: USA,WA
Posts: 234
iTrader: (0)
Andrei is on a distinguished road
h22a high compression clearance

im doing a h22a semi built using jdm h22a block and head, so my concern is will there be any head to block clearance issues with me using a 0.014" headgasket and resurfacing the head about .040?thanks
Reply With Quote
  #2 (permalink)  
Old 08-27-2010, 07:39 PM
Platinum Member
 
Join Date: Aug 2010
Posts: 1,092
iTrader: (3)
element600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond repute
Re: h22a high compression clearance

dose it need that much decked ? i would deck as little as possible .. depends on what compression pistons you use at that point . my old 11 to 1 pistons came up out of the head ( the whole piston not just the crown ) no clearance issues . but that block was good to start with so no need to deck it . there is plenty of info from most piston companies as far as this info goes .
Reply With Quote
  #3 (permalink)  
Old 08-27-2010, 09:53 PM
dbd6604's Avatar
I wish I was Kat Dennings' bra

 
Join Date: Jul 2008
Location: Quad-Cities, IL
Posts: 5,979
iTrader: (17)
dbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond repute
Re: h22a high compression clearance

If all else fails just clay it.
__________________
Prelude Enthusiast: [prel-yood, preyl-, prey-lood, pree-lood], [en-thoo-zee-ast, -ist] noun: Someone who is willing to do whatever it takes to push the envelope, performance wise or stylistically, all the while brushing their shoulders off in a truly pimp-esque manor.

See also: Automotive Pioneer
Reply With Quote
  #4 (permalink)  
Old 08-28-2010, 03:08 AM
Bronze Member
 
Join Date: Dec 2008
Location: USA,WA
Posts: 234
iTrader: (0)
Andrei is on a distinguished road
Re: h22a high compression clearance

the jdm h22a has 11.1 to 1 pistons, if people do 13.5:1 compression and they dont have issues i gues i wont either.just want to be on the safe side.
Reply With Quote
  #5 (permalink)  
Old 08-28-2010, 05:40 PM
lilbluelude's Avatar
Silver Member
ROTM!
 
Join Date: Oct 2007
Location: Georgia Baby!
Posts: 463
iTrader: (5)
lilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond repute
Re: h22a high compression clearance

what pistons?

and the JDM H22a is 10.6:1..

There is a serious chance this wont work. more info!
__________________
H22 LOVERS BANDWAGON MEMBER # 10 sec club
Reply With Quote
  #6 (permalink)  
Old 08-28-2010, 07:44 PM
Platinum Member
 
Join Date: Aug 2010
Posts: 1,092
iTrader: (3)
element600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond reputeelement600rr has a reputation beyond repute
Re: h22a high compression clearance

Quote:
Originally Posted by Andrei View Post
the jdm h22a has 11.1 to 1 pistons, if people do 13.5:1 compression and they dont have issues i gues i wont either.just want to be on the safe side.
if your planning on running pump gas this isnt gonna work . i was 12 to 1 and would barely run right on 93 . put 87 in once by accident and had to drain the tank because the car wouldnt run right was pining left and right
Reply With Quote
  #7 (permalink)  
Old 08-28-2010, 07:52 PM
Bronze Member
 
Join Date: Dec 2008
Location: USA,WA
Posts: 234
iTrader: (0)
Andrei is on a distinguished road
Re: h22a high compression clearance

so should i get a thicker head gasket then?
Reply With Quote
  #8 (permalink)  
Old 08-28-2010, 08:58 PM
lilbluelude's Avatar
Silver Member
ROTM!
 
Join Date: Oct 2007
Location: Georgia Baby!
Posts: 463
iTrader: (5)
lilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond repute
Re: h22a high compression clearance

Quote:
Originally Posted by lilbluelude View Post
what pistons?


There is a serious chance this wont work. more info!

answer the questions...

I can tell you that you should have clearance for the pistons pending its a h22 setup and no prior work has been done on the block or head. But, I dont believe it will be enough to do so safely and you may contact the quench pad at high rpms with natural rod stretch. I wouldnt go that thin on the HG. I also would clay the motor. It takes an hour to do right and will tell you where you sit.

But, the compression is going to be through the roof. Even usdm h22 pistons the compression will be pushing atleast 12.25:1... Not something I would play on pump gas with. And, you will have to tune it or expect it to last a month and run like asshole the entire time.
__________________
H22 LOVERS BANDWAGON MEMBER # 10 sec club
Reply With Quote
  #9 (permalink)  
Old 08-29-2010, 02:41 PM
Bronze Member
 
Join Date: Dec 2008
Location: USA,WA
Posts: 234
iTrader: (0)
Andrei is on a distinguished road
Re: h22a high compression clearance

lilbluelude : i had my usdm block with jdm head my compression was 210psi, i was using a .027 headgasket and decked head about .020.right now i have a jdm block which i looked it up is 11.1:1 comp. and i decked the head again about the same.what compression ration would i be looking at if i were to use lets say a .040 thickness gasket?would that be much more safer to run on pump gas?cuz i know clearance should be fine.and i cant clay the motor because my block is still at the shop.
Reply With Quote
  #10 (permalink)  
Old 08-29-2010, 09:30 PM
98vtec's Avatar
H23 VTEC'd
ROTM!
 
Join Date: Jun 2006
Posts: 1,476
iTrader: (0)
98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute
Send a message via AIM to 98vtec
Re: h22a high compression clearance

Quote:
Originally Posted by element600rr View Post
if your planning on running pump gas this isnt gonna work . i was 12 to 1 and would barely run right on 93 . put 87 in once by accident and had to drain the tank because the car wouldnt run right was pining left and right
you had a **** tune then. I was over 12:1 compression with my old motor, ran 13.4 ET, got 36mpg on the highway, and was abused for 30k miles before spinning a rod bearing. All on 93 octane.
Reply With Quote
  #11 (permalink)  
Old 08-29-2010, 11:24 PM
dbd6604's Avatar
I wish I was Kat Dennings' bra

 
Join Date: Jul 2008
Location: Quad-Cities, IL
Posts: 5,979
iTrader: (17)
dbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond repute
Re: h22a high compression clearance

Quote:
now i have a jdm block which i looked it up is 11.1:1 comp.
Well first of all...the JDM H22 is 10.6:1 compression, the Type-S H22 is 11:1 compression. Just a little FYI. And the compression isn't relative to the block you have...it's all in the pistons and how much you have decked the cylinder head.


I'm sure I'm forgetting something so I'll wait for Blake to correct me and call me an idiot. lol
__________________
Prelude Enthusiast: [prel-yood, preyl-, prey-lood, pree-lood], [en-thoo-zee-ast, -ist] noun: Someone who is willing to do whatever it takes to push the envelope, performance wise or stylistically, all the while brushing their shoulders off in a truly pimp-esque manor.

See also: Automotive Pioneer
Reply With Quote
  #12 (permalink)  
Old 08-29-2010, 11:59 PM
lilbluelude's Avatar
Silver Member
ROTM!
 
Join Date: Oct 2007
Location: Georgia Baby!
Posts: 463
iTrader: (5)
lilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond repute
Re: h22a high compression clearance

Quote:
Originally Posted by dbd6604 View Post
Well first of all...the JDM H22 is 10.6:1 compression, the Type-S H22 is 11:1 compression. Just a little FYI. And the compression isn't relative to the block you have...it's all in the pistons and how much you have decked the cylinder head.


I'm sure I'm forgetting something so I'll wait for Blake to correct me and call me an idiot. lol

Blake has nothing to correct you on. He could add to it, or mention there are multiple ways to increase compression you didnt mention.
__________________
H22 LOVERS BANDWAGON MEMBER # 10 sec club
Reply With Quote
  #13 (permalink)  
Old 08-30-2010, 12:40 AM
98vtec's Avatar
H23 VTEC'd
ROTM!
 
Join Date: Jun 2006
Posts: 1,476
iTrader: (0)
98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute
Send a message via AIM to 98vtec
Re: h22a high compression clearance

anytime you change the difference in volume between bottom dead center and top dead center you have a change in compression. Larger volume = less compression, smaller volume = greater compression.

you can change compression by changing the crank or rod (or both) or by creating a custom compression by changing all 3 (crank, rod, piston).
Reply With Quote
  #14 (permalink)  
Old 08-30-2010, 12:42 AM
dbd6604's Avatar
I wish I was Kat Dennings' bra

 
Join Date: Jul 2008
Location: Quad-Cities, IL
Posts: 5,979
iTrader: (17)
dbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond repute
Re: h22a high compression clearance

Hey Blake while you're on, quick question, what are the plates called that people weld onto the top of the block to allow for a longer stroke? Deck plates or something like that? This convo made me think of it, but I can't remember the name of it now and it's bugging me haha.
__________________
Prelude Enthusiast: [prel-yood, preyl-, prey-lood, pree-lood], [en-thoo-zee-ast, -ist] noun: Someone who is willing to do whatever it takes to push the envelope, performance wise or stylistically, all the while brushing their shoulders off in a truly pimp-esque manor.

See also: Automotive Pioneer
Reply With Quote
  #15 (permalink)  
Old 08-30-2010, 12:45 AM
98vtec's Avatar
H23 VTEC'd
ROTM!
 
Join Date: Jun 2006
Posts: 1,476
iTrader: (0)
98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute
Send a message via AIM to 98vtec
Re: h22a high compression clearance

deck plate. You got it
Reply With Quote
  #16 (permalink)  
Old 08-30-2010, 12:48 AM
dbd6604's Avatar
I wish I was Kat Dennings' bra

 
Join Date: Jul 2008
Location: Quad-Cities, IL
Posts: 5,979
iTrader: (17)
dbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond reputedbd6604 has a reputation beyond repute
Re: h22a high compression clearance

Thanks. It was one of those "You know it but it's stuck on the tip of your tongue moments." Hate it. Hey, did you ever get your custom IM yet?
__________________
Prelude Enthusiast: [prel-yood, preyl-, prey-lood, pree-lood], [en-thoo-zee-ast, -ist] noun: Someone who is willing to do whatever it takes to push the envelope, performance wise or stylistically, all the while brushing their shoulders off in a truly pimp-esque manor.

See also: Automotive Pioneer
Reply With Quote
  #17 (permalink)  
Old 08-30-2010, 05:23 PM
Bronze Member
 
Join Date: Dec 2008
Location: USA,WA
Posts: 234
iTrader: (0)
Andrei is on a distinguished road
Re: h22a high compression clearance

so what do you guys suggest i shoudl do?thicker head gasket maybe?
P.S i love when ppl turn my threads into chat rooms.lol
Reply With Quote
  #18 (permalink)  
Old 08-30-2010, 07:03 PM
lilbluelude's Avatar
Silver Member
ROTM!
 
Join Date: Oct 2007
Location: Georgia Baby!
Posts: 463
iTrader: (5)
lilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond repute
Re: h22a high compression clearance

I think you should provide us with accurate and sufficient information. An example would be:

Full h22

h22 block
h22a1 pistons (10:1 compression) (-1.40cc piston dome displacement per cylinder)<--maybe the last part is overkill
h22 head (previous milled .0x0)


I want to mill the head/block an additional .xxx inches. I will be running Hondata s300 and have a dyno tuning appointment setup for the same week I will have it running.

I understand all the risks associated with asking others for information on the internet and will not hold them at fault for things I do not understand or inadequate information I provide.

Do you think I will be able to mill this additional amount and have the pistons not hit the head?
__________________
H22 LOVERS BANDWAGON MEMBER # 10 sec club
Reply With Quote
  #19 (permalink)  
Old 08-30-2010, 07:10 PM
lilbluelude's Avatar
Silver Member
ROTM!
 
Join Date: Oct 2007
Location: Georgia Baby!
Posts: 463
iTrader: (5)
lilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond repute
Re: h22a high compression clearance

P.S.> I love it when someone asks my opinion on something and then gives me enough information where my only choice is to point them to the nearest bridge to jump off.



I would honestly love to help you and so would 98vtec. But, you have to give us details and information.

If your motor is 100% stock aside from milling it .040+ inches.. Buy a cometic HG that is extra thick... They do make .060 thick head gaskets and even .090.
__________________
H22 LOVERS BANDWAGON MEMBER # 10 sec club
Reply With Quote
  #20 (permalink)  
Old 08-30-2010, 07:27 PM
98vtec's Avatar
H23 VTEC'd
ROTM!
 
Join Date: Jun 2006
Posts: 1,476
iTrader: (0)
98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute98vtec has a reputation beyond repute
Send a message via AIM to 98vtec
Re: h22a high compression clearance

Quote:
Originally Posted by Andrei View Post
so what do you guys suggest i shoudl do?thicker head gasket maybe?
P.S i love when ppl turn my threads into chat rooms.lol
maybe you would learn something if you would answer the questions. The two people trying to help you (me and tommy) have been doing this for a long time. If you want our help and not just some noob who read a magazine, you need to give us details or we are just going to leave your thread alone.

good day.
Reply With Quote
  #21 (permalink)  
Old 08-30-2010, 08:39 PM
Bronze Member
 
Join Date: Dec 2008
Location: USA,WA
Posts: 234
iTrader: (0)
Andrei is on a distinguished road
Re: h22a high compression clearance

i think i already said that im using jdm h22a block with jdm head taht had been resurfaced 0.040"with.027" headgasket., what route should i take and if thats a safe setup to run on a pump gas?thanks
Reply With Quote
  #22 (permalink)  
Old 08-30-2010, 10:37 PM
lilbluelude's Avatar
Silver Member
ROTM!
 
Join Date: Oct 2007
Location: Georgia Baby!
Posts: 463
iTrader: (5)
lilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond reputelilbluelude has a reputation beyond repute
Re: h22a high compression clearance

/unsubscribe
__________________
H22 LOVERS BANDWAGON MEMBER # 10 sec club
Reply With Quote
  #23 (permalink)  
Old 08-31-2010, 10:32 PM
Bronze Member
 
Join Date: Dec 2008
Location: USA,WA
Posts: 234
iTrader: (0)
Andrei is on a distinguished road
Icon8 Re: h22a high compression clearance

this is useless
Reply With Quote
  #24 (permalink)  
Old 02-28-2012, 08:18 PM
joelkarlonas's Avatar
I'm New
 
Join Date: Mar 2011
Location: Regina SK
Posts: 20
iTrader: (0)
joelkarlonas is on a distinguished road
Re: h22a high compression clearance

Quote:
Originally Posted by 98vtec View Post
maybe you would learn something if you would answer the questions. The two people trying to help you (me and tommy) have been doing this for a long time. If you want our help and not just some noob who read a magazine, you need to give us details or we are just going to leave your thread alone.

good day.
hey 98vtec, i have a stock jdm h22a black top, i want to run skunk 2 pro2's and pro2 valve springs and ti retainers, id like to use a .014 head gasket would this give me sufficient compression to get the most out of my pro2 cams?

I read on another thread that i would see about a .5 gain in compression on a stock jdm h22a using a .014 head gasket, so milling the block is the first thing that comes to mind

my main question would .014 HG + .020 = me worrying about a clearance issue
Reply With Quote
  #25 (permalink)  
Old 02-28-2012, 08:19 PM
joelkarlonas's Avatar
I'm New
 
Join Date: Mar 2011
Location: Regina SK
Posts: 20
iTrader: (0)
joelkarlonas is on a distinguished road
Re: h22a high compression clearance

.020 block deck sorry
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Eng: Valve Clearance/Lash adjustments.. h22aDOHC cheeseman411 DIY Engine 34 08-31-2012 09:19 PM
Lifter/rocker clearance EK1 1980 FastFWD 1st Gen Honda Prelude 3 01-12-2010 07:03 PM
Best ground clearance? dawsan2325 4th Gen Honda Prelude 21 11-06-2008 11:43 PM
5th gen stock height/clearance? xiayu 5th Gen Honda Prelude 7 05-30-2008 08:58 AM


All times are GMT -4. The time now is 04:36 PM.



Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.
vB.Sponsors


Copyright © 2006-2009 PreludeZone.com All Rights Reserved.