block off plate? pic inside
- Thread starter TooGoode
- Start date
TooGoode;921805 said:i just did an overhaul on my 7m and got to this:
does a bock off plate go here? (left circle)
I think you are missing one hole on the left of the egr area on the head.
The one on the right is blocking the exhaust gas feed.
The one on the left doesn't matter since you don't have an EGR cooler and the exhaust gas feed is already blocked. A plate here is purely cosmetic and you'll still have an open hole on the left rear in the EGR cooler area.
A very important place to have a plate with no EGR is the rear of the upper intake manifold, below the brake booster fitting. The EGR attaches there to feed exhaust gas from the EGR valve to mix with intake air....no plate = massive boost leak.
BTW - You're going to have a heck of a time passing AZ emissions with no EGR. Tried it myself using every trick I know of...had to install an EGR to make it pass the dyno test. The only way I know of is with a full stand alone EMS tuned to pass.
The one on the left doesn't matter since you don't have an EGR cooler and the exhaust gas feed is already blocked. A plate here is purely cosmetic and you'll still have an open hole on the left rear in the EGR cooler area.
A very important place to have a plate with no EGR is the rear of the upper intake manifold, below the brake booster fitting. The EGR attaches there to feed exhaust gas from the EGR valve to mix with intake air....no plate = massive boost leak.
BTW - You're going to have a heck of a time passing AZ emissions with no EGR. Tried it myself using every trick I know of...had to install an EGR to make it pass the dyno test. The only way I know of is with a full stand alone EMS tuned to pass.
you clearly already have a blockoff plate installed on the back of the head. The only other necessary plate is on the intake manifold.
You guys are right. 
On a related note, I can't remember what the back of the head looks like on a JDM engine.... Do they block it off, or is the head not even provisioned for the EGR hole?
On a related note, I can't remember what the back of the head looks like on a JDM engine.... Do they block it off, or is the head not even provisioned for the EGR hole?
MK3Brent;921862 said:You guys are right.
On a related note, I can't remember what the back of the head looks like on a JDM engine.... Do they block it off, or is the head not even provisioned for the EGR hole?
It looks identical to the picture...all the heads I've seen (JDM or USDM) have the EGR holes.
JDM heads usually don't have the EGR cooler though.
Great, thanks!
Thought so.
Those various "M" blocking plates on the engine are too close to the bolt spacing, so that isn't surprising.
Thought so.
Those various "M" blocking plates on the engine are too close to the bolt spacing, so that isn't surprising.
