VW Vortex - Volkswagen Forum banner
1 - 12 of 12 Posts

·
Registered
Joined
·
541 Posts
Discussion Starter · #1 ·
Ok i was talking to the guy who is going to port and polish my head. He said he could shave it 0.060" to bring the compression up 1 point. And there would be no valve smacking with my 270 cam. Anyway i want to know what the stock compression is on a 2.0. Also what do you guys think about this? http://****************.com/smile/emthup.gif
 

·
Registered
Joined
·
541 Posts
Discussion Starter · #3 ·
Re: Head compression help (Wild Monkey)

quote:[HR][/HR]For the MkIV it's 10.1:1. Should be about the same for your MkIII.[HR][/HR]​
Ok so if stock is 10 then after the shave it would be up to 11? Hows that with pump gas?
 

·
Registered
Joined
·
10,827 Posts
Re: Head compression help (8v-inside)

Stock compression for a new engine is 145psi to 189psi--big difference, but that's what the Bentley says. I just did a compression test on my engine with 62,000 miles on it and got 195psi on all cylinders. I'll allow that the compression gauge was a little off. The important thing is that all cylinders are close to each other.
 

·
Registered
Joined
·
1,742 Posts
Re: Head compression help (JettaRed)

I had 11.3:1 or so on my 94 golf and I had to run 94 or higher octane... I suppose it depends on the chip you're running too. The other thing to watch is that your ignition and cam timing will be off and you will have to get an adjustable Cam gear. I did my compression with a set of TT pistons.
 

·
Registered
Joined
·
541 Posts
Discussion Starter · #6 ·
Re: Head compression help (Fast2.0L)

quote:[HR][/HR]I had 11.3:1 or so on my 94 golf and I had to run 94 or higher octane... I suppose it depends on the chip you're running too. The other thing to watch is that your ignition and cam timing will be off and you will have to get an adjustable Cam gear. I did my compression with a set of TT pistons.[HR][/HR]​
WOW... i'm guessing your car was pretty fast
 

·
Registered
Joined
·
1,742 Posts
Re: Head compression help (8v-inside)

Nah it wasn't fast very fast. Now that I have seen the darkside the only way to get real power is to go forced induction. The A3 is just so heavy. Even with all my mods my 94 only ran mid 15 sec. 1/4 mi.
 

·
Registered
Joined
·
6,689 Posts
Re: Head compression help (8v-inside)

quote:[HR][/HR]Damn are you for real!?!? I'm trying to go all motor with a 2.1L stroker kit
[HR][/HR]​
Do not shave the head then, raise comp the proper way with the new pistons.
 

·
Registered
Joined
·
103 Posts
Re: Head compression help (JettaRed)

jettared,
since you've had a compression test done could you tell me where the fuel pump fuse is located ? thanks.
-new member
95 jetta 2.0, hi miles, euro cat back, tt chip, kn panel
 

·
Registered
Joined
·
5,636 Posts
Re: Head compression help (fundub)

It is fuse number 17 The acceptable limit is 145 but again you really don't want to see much difference between all the cylinders then you will have rich conditions in some areas.
 
1 - 12 of 12 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top