Toymods Car Club
www.toymods.org.au
F.A.Q. F.A.Q.    Register Register    Login Login    Home Home
Members Members    Search Search
Toymods » Tech & Conversions » compression plate

Show: Today's Posts  :: Show Polls 
Email to friend  		Switch to threaded view of this topic Create a new topic Submit Reply
AuthorTopic
benen
Regular


Location:
South Australia
Registered:
August 2003
compression plate Tue, 09 September 2003 13:55 Go to next message
what the hell is a compression plate? One of my friends said that he wants to get a supercharger for his car but would need a compression plate so his engine doesnt blow. None of my friends have a clue what he is talking about either and this leads me to believe that neither does he. He usually just talks out of his ass to make himself sound smarter and wont admit it when u actually look something up and prove him wrong lol, u know the type of person im talking about. Is this just another one of those instances?
  Send a private message to this user    
draven
Forums Junkie


I supported Toymods

Location:
Epping, Sydney
Registered:
May 2002
 
Re: compression plate Tue, 09 September 2003 13:58 Go to previous messageGo to next message
if I had to take a guess, it'd be a spacer between the block and the head to drop compression, do you could (reliably) run FI on an NA car.
  Send a private message to this user    
benen
Regular


Location:
South Australia
Registered:
August 2003
Re: compression plate Tue, 09 September 2003 14:01 Go to previous messageGo to next message
aaarg, so hes right? lol i guess he has to be right once in a while
  Send a private message to this user    
justcallmefrank
Forums Junkie


I supported Toymods

Location:
Perth
Registered:
May 2002
 
Re: compression plate Tue, 09 September 2003 14:28 Go to previous messageGo to next message
Its usually called a de-compression plate, so you can make some ground back there Wink

Its probably one of the dodgiest ways, but its been done numerous times before successfully.
  Send a private message to this user    
benen
Regular


Location:
South Australia
Registered:
August 2003
Re: compression plate Tue, 09 September 2003 14:29 Go to previous messageGo to next message
haha wicked, cheers
  Send a private message to this user    
ed_ma61
Forums Junkie


Location:
Lost in the K hole
Registered:
May 2002
Re: compression plate Tue, 09 September 2003 15:02 Go to previous messageGo to next message
ok, without looking like im offesively shutting anyone down Rolling Eyes ....

decompression plates are the most god awful idea for trying to reduce detonation in a DIY forced induction engine (despite eveyone selling them)...

one of the single most important factors in detonation prevention and proper combustion, is adequate squish clearance - ie the space b/w your piston and the head. the closer, the better (like down to 0.030")

decompression plates actually expand the squish clearance. so despite lowering your static compresison ratio, it will actually PROMOTE detonation through improper combustion tolerances. BAD!!

bad bad bad

cheers
ed
  Send a private message to this user    
benen
Regular


Location:
South Australia
Registered:
August 2003
Re: compression plate Tue, 09 September 2003 15:04 Go to previous messageGo to next message
cheers, ill be sure to tell that to my friend, and also tell him that he is very crap
  Send a private message to this user    
thechuckster
Forums Junkie


Location:
Brisbane
Registered:
February 2003
 
Re: compression plate Wed, 10 September 2003 11:28 Go to previous messageGo to next message
...plus, unless you o-ring both sides of the plate and the head/block, AND use copper gaskets you're probably going to blow the head gaskets out before reaching an exciting level of boost.

and even if you've got to all this expence (of o-ringing) you've then lifted the head up higher than expected so the cam chain may not have the links in the right spot for the cam gears (and no this is not why there's a cam chain tensioner)...

...and doubled the likely number of places where the head gasket will leak/fail.

but wait there's more ... even if you o-ringed the motor/head/plate - you're not going to get the same tension on the head bolts (as you've got the squish of two gaskets) so you'll either snap or strip the thread on a head stud/bolt overtightening it or not do it up tight enough (and then para three happens)

Unless you want to keep boost to sub 5psi, dump the plate and tell your mate he's a tosser.

[Updated on: Wed, 10 September 2003 11:30]

  Send a private message to this user    
benen
Regular


Location:
South Australia
Registered:
August 2003
Re: compression plate Wed, 10 September 2003 11:42 Go to previous messageGo to next message
haha, i already told him hes a tosser
  Send a private message to this user    
shinybluesteel
Forums Junkie


I supported Toymods

Location:
melbourne
Registered:
June 2002
Re: compression plate Wed, 10 September 2003 12:01 Go to previous messageGo to next message
wel you didnt even know what one was, so what does that make you?
  Send a private message to this user    
benen
Regular


Location:
South Australia
Registered:
August 2003
Re: compression plate Wed, 10 September 2003 12:14 Go to previous message
i asked to find out. im sure there are things u dont know. At least i dont just pretend to know about shit if i dont, he does. so hes a tosser
  Send a private message to this user    
  Switch to threaded view of this topic Create a new topic Submit Reply
Previous Topic:MAP & AFM, a lil confused.....
Next Topic:unleaded fuel filler restrictor in ae86
Goto Forum:
-=] Back to Top [=-

Current Time: Wed Nov 27 14:27:27 UTC 2024

Total time taken to generate the page: 0.0056729316711426 seconds

Bandwidth utilization bar

.:: Contact :: Home ::.

Powered by: FUDforum 2.3.8
Copyright ©2001-2003 Advanced Internet Designs Inc.