Step by Step guide to installing a Mark VIII motor in a 96+ GT.
#161
Now that I look at it, you are using the 97-98 intake, so it might reach?
#165
Foghorn Leghorn
Join Date: Dec 2006
Location: I reside in a near constant state of amazment.
Posts: 2,923
I have a question:
I have the engine installed and cold start is a bitch. It is flooding out and I'm grinding on the starter for 2 minutes trying to get it started and it finally fires up.
What are the injectors rated at GT vs Mark VIII?
I have the engine installed and cold start is a bitch. It is flooding out and I'm grinding on the starter for 2 minutes trying to get it started and it finally fires up.
What are the injectors rated at GT vs Mark VIII?
#166
I ran mine on the 19's for awhile, and then moved over to the 24's about 5k miles later. ran the same when i switched. I am using the stock GT MAF as well. no tune.
Last edited by BlackMage; 12-30-2014 at 01:19 PM.
#167
Foghorn Leghorn
Join Date: Dec 2006
Location: I reside in a near constant state of amazment.
Posts: 2,923
Yeah, I just found out that the Mark has #24 injectors vs. the 19# GT so I'm hoping that switching back to the 19# will stop the flooding.
If it doesn't then I'm back to scratching my *** and blinking.
If it doesn't then I'm back to scratching my *** and blinking.
#169
Foghorn Leghorn
Join Date: Dec 2006
Location: I reside in a near constant state of amazment.
Posts: 2,923
It seems to run OK but I'm burning the hell out of the starter just getting it started.
Let me ask you something.
If I pulled the ECU out of a Mark VIII would that play nice with my Mustang? I was thinking about just using the Mark VIII MAF, injectors and ECU and going that route.
Thoughts?
Thanks.
Let me ask you something.
If I pulled the ECU out of a Mark VIII would that play nice with my Mustang? I was thinking about just using the Mark VIII MAF, injectors and ECU and going that route.
Thoughts?
Thanks.
#170
Foghorn Leghorn
Join Date: Dec 2006
Location: I reside in a near constant state of amazment.
Posts: 2,923
Putting the Mustang injectors back in cured the flooding problem.
The cold cranking problem is still happening though. I'm thinking it's a crank sensor or a cam sensor.
I was able to get it started yesterday and took it for a short burst. Cruising along it was smooth as silk but once I put my foot in it a couple of the coils showed their asses.
At idle, when I closed my eyes, I swear if I didn't know better that I was sitting back in my Mark VIII. Put it in gear and it idles down nicely. No codes being thrown, AC blowing cold.
Today was 1/2 price day at the LKQ. I went this morning and low and behold there was a 98 Mark VIII fresh on the ground and intact.
The coils looked great so I snagged everyone of them, grabbed the alternator as well. Also grabbed the cruise control module and cable and a couple each crank and cam sensors.
I'm close, people.
I'm close.
The cold cranking problem is still happening though. I'm thinking it's a crank sensor or a cam sensor.
I was able to get it started yesterday and took it for a short burst. Cruising along it was smooth as silk but once I put my foot in it a couple of the coils showed their asses.
At idle, when I closed my eyes, I swear if I didn't know better that I was sitting back in my Mark VIII. Put it in gear and it idles down nicely. No codes being thrown, AC blowing cold.
Today was 1/2 price day at the LKQ. I went this morning and low and behold there was a 98 Mark VIII fresh on the ground and intact.
The coils looked great so I snagged everyone of them, grabbed the alternator as well. Also grabbed the cruise control module and cable and a couple each crank and cam sensors.
I'm close, people.
I'm close.
Last edited by fastbackford351; 01-01-2015 at 03:51 PM.