Efi 400
Posting Guru
Joined: Aug 2000
Posts: 2,416
Likes: 4
From: PacNW
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Postmaster
Joined: Aug 2001
Posts: 4,270
Likes: 5
From: Delaware
It's finally done!
I have had it out on the highway on a couple of occasions in the last week. It is very smooth running.
I don't think that I am getting the low end torque that I did with the carb, but that is due to the high rise single plane intake with large runners, versus the small runner Edelbrock Streetmaster that I had with the carb. It should have much better high RPM power. I haven't had much chance to check that out.
I will continue to tweak the tuning for a few more weeks, until I think that I am getting everything that I can get out of it.
I have had it out on the highway on a couple of occasions in the last week. It is very smooth running.
I don't think that I am getting the low end torque that I did with the carb, but that is due to the high rise single plane intake with large runners, versus the small runner Edelbrock Streetmaster that I had with the carb. It should have much better high RPM power. I haven't had much chance to check that out.
I will continue to tweak the tuning for a few more weeks, until I think that I am getting everything that I can get out of it.
Cargo Master
Joined: May 2003
Posts: 2,561
Likes: 1
From: Earth
Originally Posted by danlee
It's finally done!
I have had it out on the highway on a couple of occasions in the last week. It is very smooth running.
I don't think that I am getting the low end torque that I did with the carb, but that is due to the high rise single plane intake with large runners, versus the small runner Edelbrock Streetmaster that I had with the carb. It should have much better high RPM power. I haven't had much chance to check that out.
I will continue to tweak the tuning for a few more weeks, until I think that I am getting everything that I can get out of it.
I have had it out on the highway on a couple of occasions in the last week. It is very smooth running.
I don't think that I am getting the low end torque that I did with the carb, but that is due to the high rise single plane intake with large runners, versus the small runner Edelbrock Streetmaster that I had with the carb. It should have much better high RPM power. I haven't had much chance to check that out.
I will continue to tweak the tuning for a few more weeks, until I think that I am getting everything that I can get out of it.
Junior User
Joined: Jan 2006
Posts: 57
Likes: 0
Hey hows it going I am new to this forum and have been reading on your efi build. I am also putting efi on my 78 400, but I am using a 351w intake from Typhoon and a set of adapters from Price Motorsport. I am going to use all 1990 mustang 5.0 harness and computer. I already have these items. I am more curious on your tuning chip. I am really only using mine for everyday use and towing. So I am not looking for all out performance (well maybe blowing some Duramaxes away). But I would appreciate any suggestions you might have. By the way looks good.
Stephan
Stephan
Fleet Mechanic
Joined: Jan 2003
Posts: 1,812
Likes: 15
From: Central Ohio
Originally Posted by jopey
howell would be a far better choice if your lookig for tbi, $1200 with custom chip burnt for your engine. I would avoid holley stuff like the plege unless your going to get the top of the line commander setups.
the 700cfm holley commander 950. But all the current kits available are commander 950's, so are they all the same or is on more 'top of the line' then another?
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Postmaster
Joined: Aug 2001
Posts: 4,270
Likes: 5
From: Delaware
Originally Posted by Cutls67
Hey hows it going I am new to this forum and have been reading on your efi build. I am also putting efi on my 78 400, but I am using a 351w intake from Typhoon and a set of adapters from Price Motorsport. I am going to use all 1990 mustang 5.0 harness and computer. I already have these items. I am more curious on your tuning chip. I am really only using mine for everyday use and towing. So I am not looking for all out performance (well maybe blowing some Duramaxes away). But I would appreciate any suggestions you might have. By the way looks good.
Stephan
Stephan
Here are a couple of links.
http://fordfuelinjection.com/
http://www.tweecer.com/
Here is a nice setup.
http://www.mass-floefi.com/
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Postmaster
Joined: Aug 2001
Posts: 4,270
Likes: 5
From: Delaware
I took the truck in a Parade today. The motor idled for more than an hour. The outside temperature was about 65 degrees, my motor stayed pegged at 180 degrees. The '72 Chebby with a carbed 350 in front of me had to rev his motor to clear it out. It was loading up from all the idling. I just let mine idle, after the parade was over, I gave it some gas and it took right off.
I don't think that I am optimzed yet, but it feels good and has good throttle response.
I don't think that I am optimzed yet, but it feels good and has good throttle response.
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Postmaster
Joined: Aug 2001
Posts: 4,270
Likes: 5
From: Delaware
It should be very smog friendly. You should be able to get a smog friendly tune.
Check with Jopes, he has posted in this thread. He has also done a conversion, and he lives in CA.
Check with Jopes, he has posted in this thread. He has also done a conversion, and he lives in CA.
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