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

Thread Title
Cooper head gasket

 
Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 12-17-2009, 06:42 PM
Bronze Member
 
Join Date: Dec 2008
Location: USA,WA
Posts: 234
iTrader: (0)
Andrei is on a distinguished road
I found this gasket on ebay, its .0014 think and the seller guarantees increased compression with that head gasket.Anyone knows stuff about head gaskets will be helpfull.Thanks

Does that sounds fake or can it actually increase compression?

Last edited by 1BadBB6; 12-18-2009 at 04:26 PM. Reason: merging back to back posts
Reply With Quote
  #2 (permalink)  
Old 12-17-2009, 11:41 PM
Bronze Member
 
Join Date: Oct 2009
Location: Australia
Posts: 200
iTrader: (0)
rhangman has a reputation beyond reputerhangman has a reputation beyond reputerhangman has a reputation beyond reputerhangman has a reputation beyond reputerhangman has a reputation beyond reputerhangman has a reputation beyond reputerhangman has a reputation beyond reputerhangman has a reputation beyond reputerhangman has a reputation beyond reputerhangman has a reputation beyond reputerhangman has a reputation beyond repute
Re: Cooper head gasket

0.0014?? That's like 0.04mm. Basically nothing. Maybe you meant 0.014? Stock is 0.03 (0.026 compressed).

Yes it will increase compression. Like using one layer of the OEM instead of all 3. Maybe around 0.5 increase so 10.5:1 instead of 10:1. Can also mill the head. Just be careful of valve to piston clearances, especially if you are running say Type S pistons. Can also run flat valves for a similar increase.
Reply With Quote
  #3 (permalink)  
Old 12-17-2009, 11:59 PM
I'm New
 
Join Date: Dec 2009
Posts: 1
iTrader: (0)
LudeBob89 is on a distinguished road
Re: Cooper head gasket

Getting it to seal may be a mission though.
Reply With Quote
  #4 (permalink)  
Old 12-18-2009, 12:03 AM
UPSluder's Avatar
Grand Member
 
Join Date: Jun 2009
Location: ct
Posts: 3,249
iTrader: (2)
UPSluder has a reputation beyond reputeUPSluder has a reputation beyond reputeUPSluder has a reputation beyond reputeUPSluder has a reputation beyond reputeUPSluder has a reputation beyond reputeUPSluder has a reputation beyond reputeUPSluder has a reputation beyond reputeUPSluder has a reputation beyond reputeUPSluder has a reputation beyond reputeUPSluder has a reputation beyond reputeUPSluder has a reputation beyond repute
Send a message via AIM to UPSluder
Re: Cooper head gasket

thinner = more compression
thicker = less compression
__________________
Quote:
Originally Posted by BB2H22A4 View Post
1BadBB6 has one. We never play with it anymore though.

sig Lazer

Team BBeer6
Reply With Quote
  #5 (permalink)  
Old 12-18-2009, 01:10 AM
Bronze Member
 
Join Date: Dec 2008
Location: USA,WA
Posts: 234
iTrader: (0)
Andrei is on a distinguished road
LudeBob89: what you mean it can be a mission?it might leak or something?

cooper is a soft metal so it probably gonna get compressed and seal off good.

Last edited by 1BadBB6; 12-18-2009 at 04:27 PM. Reason: merging back to back posts
Reply With Quote
  #6 (permalink)  
Old 12-18-2009, 01:51 AM
Not So New
 
Join Date: May 2009
Location: Penn State + SoCal
Posts: 44
iTrader: (0)
fei8lo is on a distinguished road
Re: Cooper head gasket

That thickness will not give you a change of 0.5 in the compresseion ratio. It will only chage the compression ratio a small amount. Less thickness means less play, your head and deck will have to be perfectly flat for it to seal properly.
__________________
Reply With Quote
  #7 (permalink)  
Old 12-18-2009, 04:31 PM
1BadBB6's Avatar
I </3 Your Fake Wheels
ROTY `10!
 
Join Date: Jul 2006
Location: Knoxvegas
Posts: 4,876
iTrader: (32)
1BadBB6 has a reputation beyond repute1BadBB6 has a reputation beyond repute1BadBB6 has a reputation beyond repute1BadBB6 has a reputation beyond repute1BadBB6 has a reputation beyond repute1BadBB6 has a reputation beyond repute1BadBB6 has a reputation beyond repute1BadBB6 has a reputation beyond repute1BadBB6 has a reputation beyond repute1BadBB6 has a reputation beyond repute1BadBB6 has a reputation beyond repute
Re: Cooper head gasket

Quote:
Originally Posted by rhangman View Post
0.0014?? That's like 0.04mm. Basically nothing. Maybe you meant 0.014? Stock is 0.03 (0.026 compressed).

Yes it will increase compression. Like using one layer of the OEM instead of all 3. Maybe around 0.5 increase so 10.5:1 instead of 10:1. Can also mill the head. Just be careful of valve to piston clearances, especially if you are running say Type S pistons. Can also run flat valves for a similar increase.
bad idea unless the head is uneven, why would u cut away good material just to raise the compression a tiny amount? if u do mill it down then in the future warp ur head, but dont have enough material there to mill and straighten back out, then ur screwed and have to buy a new head.

Quote:
Originally Posted by Andrei View Post
LudeBob89: what you mean it can be a mission?it might leak or something?

cooper is a soft metal so it probably gonna get compressed and seal off good.
u mean COPPER right? if u really want to raise your compression, then do it the right way. by removing your block and running either Type S pistons (11:1) or by sleeving it and running high compression forged pistons. dont take shortcuts, they will just lead to failure in the end.

Quote:
Originally Posted by fei8lo View Post
That thickness will not give you a change of 0.5 in the compresseion ratio. It will only chage the compression ratio a small amount. Less thickness means less play, your head and deck will have to be perfectly flat for it to seal properly.
you are correct sir. your head deck need to be perfectly flat whenever replacing head gasket anyways.
__________________


1BadBB6, on Flickr

Like my photos? Buy them here: KTColePhotos

Reply With Quote
  #8 (permalink)  
Old 12-19-2009, 03:27 PM
twokexlv6coupe's Avatar
little green ghouls, buddy!!
Photobucket
 
Join Date: Apr 2006
Location: kitten mittens
Posts: 17,844
iTrader: (9)
twokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond repute
Send a message via AIM to twokexlv6coupe
Re: Cooper head gasket

also by increasing the CR, you're also increasing the risk of detonation, which = no good.
__________________

1995 Honda Prelude SE Turbo; 250whp, 275wtq @ 10psi Soldddd!!!

2000 Acura TL; DD
2005 Stage2.5+ Subaru WRB STi : RzKar!
Ivey Tuned - Advan - Cobb - Rallispec - CP - Perrin - ACT - KillerB - Carillo - TurboXS - Defi - Innovate - Walbro - DeatschWerks - Feal - H&R - Alpine - Infiniti - Curt

2001 Kawasaki STX1100 D.I. - Sold!
2007 Sea-Doo RXT 215; ET 127 +3 S/C impeller, DIY 3" intake, DIY resonator delete/free flow exhaust, DIY oil catch can, Rule 500gph bilge pump


Quote:
Originally Posted by Brash View Post
But you need that scoop on the hood. Is it true that they're big enough to fit your lunch box and all your camera gear in it?
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
head gasket set KTanner88 4th Gen Honda Prelude 1 08-14-2010 10:50 PM
metal head gasket and shaved head plus cams Preluking 5th Gen Honda Prelude 9 10-18-2008 07:21 PM
New Head Gasket? zhero 5th Gen Honda Prelude 9 05-11-2008 07:30 PM
head gasket BB1_Lude 4th Gen Honda Prelude 1 01-13-2007 02:00 AM


All times are GMT -4. The time now is 08:07 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.