03 cobra compression test????

[twn-trbo-svt]

any1 every do a test on there stock block? what numbers did you get?

Click to read more...

 

[twn-trbo-svt]

any1?

 

[Bob_Kurgan]

as long as they are all within 10psi, you are golden..

well, that and not all read zero LOL

 

[twn-trbo-svt]

all were between 178 and 180...just every1 i talked to it seemed kinda high...i wouldnt think this was bad?
bob empty your pm box!! lol

 

[Bob_Kurgan]

i wouldnt worry about it..

 

[twn-trbo-svt]

ok sounds good....i took those plugs out we installed during the tune we did last last year..........installed different kind.......would that change the way my car would idle? the AFR went from 16 to like 11 at idle

 

[Bob_Kurgan]

ok sounds good....i took those plugs out we installed during the tune we did last last year..........installed different kind.......would that change the way my car would idle? the AFR went from 16 to like 11 at idle

pm cleared

 

[Flatliner]

Some plugs have been known to cause issues idling... but what you should be looking at at idle is more of the afr and the fuel trim levels to make sure it's trying to reach stoich.

What plugs?

 

[twn-trbo-svt]

autolights...equal to the ngk tr6's.........but i had what bob told me to install when we had tuning issues du to my clogged injectors......NGK BR7EFS<<< took these out and man they were rough!! almost like they were sand blasted with 60 grit!! i am wondering if the bad fuel i had start detonation?? i never touch any fuel trim...what kurgan put in is it.....same fuel in it (fresh) that he tuned my car for.....order 16 new BR7EFS's....not a common plug people keep on the shelf

 

[Flatliner]

Ahhh... so I had Autolite too, but went to BR7s, never went back..

 

[chet3310]

I'm running autolite 103s still and they continue firing sometimes causing it to buck sometimes at regular rpms. Bob said this is quite common of these plugs. I have TR6s but am lazy as fawk. At idle and WOT they run great!

 

[twn-trbo-svt]

cool.....im gonna change as soon as the order comes in...

 

[Aron]

Isn't it supposed to be as long as they're within 10% of each other, it's ok?

 

[twn-trbo-svt]

sounds like it according to every1 response.....