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Old 09-09-2021, 08:29 PM
fsjcowboy's Avatar
fsjcowboy fsjcowboy is offline
230 Tornado
 
Join Date: Oct 02, 2009
Location: Senoia, GA
Posts: 17
Howell TBI followup

Rob,

Thanks to you and your thread, I competed my first Howell TBI install. Now that I've "experienced" the install, I'd like to ask and add a comment or two.

For power to the 12VDC ignition wire, I teed off of the "IGN, LPS" fuse on the main fuse panel. Where did you connect yours?

Funny thing happened on the way to TBI installation.............. while I was contemplating using the hole saw for the pass-thru to the cabin, I noticed an oblong factory, two-screw panel behind the floor insulation. It's just above the black, flexible condensate drain for the A/C. That's where I pulled my cabin-related wiring through. Plenty of room for all of the plugs to pass through. It's only drawback is that it is closer to the right exhaust manifold.

I have not connected my Howell TBI VSS to my Dakota Digital cruise control yet. It the VSS input connection really needed? I've driven the Jeep about 40 miles and haven't noticed anything wonky. What do ya think?

My TBI is working great, so far. I only had to set the timing. Howell suggests 6-8 degrees BTDC. I set mine at 10 degrees BTDC. Other than that, no other adjustments!

I don't know how to send pics. I think my files are too large and I'm not very computer savvy.

Thank you for your documentation on your installation. I've been sitting on this Howell TBI kit for 6 years and never got the guts to start. Your info gave me a good push in the right direction.
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Last edited by fsjcowboy : 09-09-2021 at 08:40 PM.
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  #42  
Old 09-10-2021, 11:49 AM
MysticRob MysticRob is offline
327 Rambler
 
Join Date: Nov 26, 2019
Location: Boise, ID
Posts: 652
Hey, thanks for the kudos, I'm glad someone found it useful.
I've read the VSS definitely helps with keeping the vehicle running properly, and since it was one of the easiest things to install, so I did it.
So, I had a chance to take a pic of how I tied it in. Turns out I also used the IGN/LPS fuse location on the right, as it serves the purpose well with key positioning.
The cable on the left is for the sunroof power:
PXL_20210910_173730736 by Robert Stone, on Flickr
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--Rob--
1988 Jeep Grand Wagoneer / Baltic Blue & Tan
2008 BMW 535xi Wagon / Deep Sea Blue & Tan

My build thread:
https://ifsja.org/forums/vb/showthread.php?t=189245
My Howell TBI Install How-To:
https://ifsja.org/forums/vb/showthread.php?t=189877

Last edited by MysticRob : 09-10-2021 at 10:21 PM.
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  #43  
Old 11-23-2021, 10:50 AM
MysticRob MysticRob is offline
327 Rambler
 
Join Date: Nov 26, 2019
Location: Boise, ID
Posts: 652
Finally remembered to post a pic of the vacuum hose routing for the Howell system:

Howell Vacuum Diagram by Robert Stone, on Flickr
__________________
--Rob--
1988 Jeep Grand Wagoneer / Baltic Blue & Tan
2008 BMW 535xi Wagon / Deep Sea Blue & Tan

My build thread:
https://ifsja.org/forums/vb/showthread.php?t=189245
My Howell TBI Install How-To:
https://ifsja.org/forums/vb/showthread.php?t=189877
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