Decompression Plate
Thread Starter
Senior Member

Joined: Aug 2006
Posts: 636
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From: Croatia
Vehicle: 1999 Hyundai Tiburon
Well, the whole project is slowly getting to the big finale. Low comp Wiseco's are in. Now I am waiting for some custom made braided lines for the turbo setup and all of the piping for the IC.
In the meantime I got my hand on a custom made decompression plate. In comparison to the OEM one this one is 1,8 mm thick (OEM is 0,7 mm) - sorry do not know what would be the tickness in inches. Fitment is perfect. fing02.gif
HEre are few pics. Tell me what you think:



In the meantime I got my hand on a custom made decompression plate. In comparison to the OEM one this one is 1,8 mm thick (OEM is 0,7 mm) - sorry do not know what would be the tickness in inches. Fitment is perfect. fing02.gif
HEre are few pics. Tell me what you think:



http://www.hyundaiaftermarket.org/images/vendor1.png

Joined: Mar 2006
Posts: 2,178
Likes: 0
From: Vancouver, BC, Canada
Vehicle: 01 Tiburon
what are you trying to get to installing a decomp plate now that you have the low comp pistons? kinda doesnt really makes sense lowering the compression of your engine even further?
you know that lowering the compression means lowering your lower end (torque) as well and the only way you can get this back is by boosting a little bit more.
the fact that the wiseco's are forged will make your engine handle quite a bit more boost by decreasing the chances of knocking
you know that lowering the compression means lowering your lower end (torque) as well and the only way you can get this back is by boosting a little bit more.
the fact that the wiseco's are forged will make your engine handle quite a bit more boost by decreasing the chances of knocking
Thread Starter
Senior Member

Joined: Aug 2006
Posts: 636
Likes: 0
From: Croatia
Vehicle: 1999 Hyundai Tiburon
Yes all of this has been thought of. But the thing is that the engine has been worked on before and compression has been raised (by increasing compression and adding FMU I was able to put 130 WHP and 195NM torque) . With the forged Wiseco's compression has been brought back to a bit less than stock and the plate should help to set it up a bit lower than that.
http://www.hyundaiaftermarket.org/images/vendor1.png

Joined: Mar 2006
Posts: 2,178
Likes: 0
From: Vancouver, BC, Canada
Vehicle: 01 Tiburon
lol.gif why didnt you say so earlier smile.gif it's all good then, keep it up!
btw, do you know what was the raised compression ratio before?
btw, do you know what was the raised compression ratio before?
its the composite metal head gasket that you need.
ran it on my car at 25psi.
cost $100 US.
if you've got the forged wiseco pistons, spend another $100 for metal gasket.
decompression plate cracked at boost of 20psi.
ran it on my car at 25psi.
cost $100 US.
if you've got the forged wiseco pistons, spend another $100 for metal gasket.
decompression plate cracked at boost of 20psi.
Thread Starter
Senior Member

Joined: Aug 2006
Posts: 636
Likes: 0
From: Croatia
Vehicle: 1999 Hyundai Tiburon
Basically the plate I have is composite metal head gasket. It wasn't bought of the net it was ordered and custom made at the local shop :-D . Did not know how to call it so I used generic "Decompression plate" name. But thnx for your info it comes handy anyway. Do You have any links to where you bought your stuff?


