H-pipe Installed

Discussion of anything related to the 1993 Cobra and Cobra R

Moderators: 93Cobra#2771, SPEEDFREEK, 1993cobra

Post Reply
Stinger1993
Posts: 32
Joined: Mon Jul 06, 2009 12:18 am

H-pipe Installed

Post by Stinger1993 »

Put the H-pipe on, WAS A MAJOR PAIN IN THE ARSE.

Put on a set of FMS headers and, bypassed the smog pump witjh A 75" belt.

Few Q's thou.

1st.
We cut the air pipe that puts air in the h-pipe, Now there 2 vacum lines that are pluged with a metal dowl pins and hose clamped shut. Is there something they sell that would plug those the right way?

2nd.
the pipe the comes from the back of the head (I dont know what it is called) is also pluged with a hose and bolt, would that be o.k. for now. what should i get for that?

3rd.
After everything was finished I took the car for a ride and when ever I slow down to a stop the idle drops to 500rpm's and feels like it is gonna die. What could that be?

thanks.
93Cobra1928
Posts: 50
Joined: Mon May 19, 2008 12:36 pm

Post by 93Cobra1928 »

Issue #1 everything that connected to the air pump can be taken off and simply be unplugged with no issue, the air tube on the H-pipe can be welded shut or plugged as you described.

Issue #2 the EGR crossover on the back of the heads has a one way check valve in it and can be left open, or you can remove it and plug the holes in the head. The thread size is 5/8x11 IIRC

Issue #3 Clean your MAF and Throttle body and drive it to let re-learn

Hope this helps
Proud owner of 93 Cobra #1928

Black/Gray leather
Post Reply