Build 1985 FJ60 Gets a Holley Sniper EFI Setup

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midknightc3 said:
Well gents, my time has come. @FJ60Cam at Mosley Motors is a pretty awesome dude, answers his phone faster than I can find mine, and in less time than I had imagined got me all the bits for his Sniper kit. Tomorrow morning I begin my install! The last week of ER shifts have been especially stressful and draining, so quality wrenching time shall be a very much needed therapy session. Thank you @Dustin Messina and @wngrog for answering my questions before I got up the guts to order everything!

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It is the single best mod I can think of for the 2F. It is like night and day as far as drivability and ease of operation. I have put around 200 miles on mine and love it. No huge performance gains but no more feathering the gas pedal to keep it running and you turn the key, let it prime and crank it, no fuss! Mine has 235k on the clock but it seems to run like a spring chicken now. The greatest hurdle on an old Truck is the fact you fix one thing the next thing rears its head. I just had to do the rear upper shock support mod last weekend due to mine finally giving way. but
as the late Joe Diffie said "I still wouldn't trade her for a Coupe Devill" Good luck with your install!
 
Mine runs great and pulls nice and strong by 2F standards, but it's been desmogged without going through JimC and I'm missing a whole bunch of vacuum stuff to make it truly run right. I was really thinking about just ordering all the vac bits and sending things off to JimC, but she's my daily driver so I can't afford 6-8 weeks turn around nor am I interested in buying spare dizzy and carb while I wait. Sniper seems the logical step from there and not actually that much more money when you consider JimC, spare parts while I wait, plus vac valves. Off to the garage in a few minutes to change up the Porky's battery (my trusty BMW GS) so that I have transportation to work if I don't get this done this weekend.
 
Aight, first questions. I'm installing a DUI at the same time since my stock dizzy hasn't been recurved. Unplugged the ignitor and I have a black with yellow stripe that is switched with ignition, and a solid black wire. Based upon wiring diagrams that solid blk is the tach. I'm going to run a relay off this plug to provide 10ga power from battery to the DUI, and wire in the switched Sniper wire off the same black with yellow stripe. The tach for both factory dash and Sniper can then run off the tach output on the DUI and into the solid black right?
 
midknightc3 said:
Aight, first questions. I'm installing a DUI at the same time since my stock dizzy hasn't been recurved. Unplugged the ignitor and I have a black with yellow stripe that is switched with ignition, and a solid black wire. Based upon wiring diagrams that solid blk is the tach. I'm going to run a relay off this plug to provide 10ga power from battery to the DUI, and wire in the switched Sniper wire off the same black with yellow stripe. The tach for both factory dash and Sniper can then run off the tach output on the DUI and into the solid black right?
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Yes, correct. I also installed the DUI when I did my Sniper install and love it! That DUI is a beast and the combo is sick when tuned in right. Timing was too low at first, and when I got it right my 60 drives like a completely different rig. One more piece of advice is on the throttle. My setup was flattening out at first when flooring it, but pulling the throttle back to only 80% made a HUGE difference and it accelerates perfect now. Cam will help walk you through everything.
 
NYIronPig said:
Yes, correct. I also installed the DUI when I did my Sniper install and love it! That DUI is a beast and the combo is sick when tuned in right. Timing was too low at first, and when I got it right my 60 drives like a completely different rig. One more piece of advice is on the throttle. My setup was flattening out at first when flooring it, but pulling the throttle back to only 80% made a HUGE difference and it accelerates perfect now. Cam will help walk you through everything.
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So what's with the flat spot on flooring it? I'm having the same trouble. I'm running direct rod from peddle to Sniper linkage and not getting a fully opened butterfly valve anyhow. MAP goes to 86 kpa. Been trying to figure this out for awhile now.
 
MoaByte said:
So what's with the flat spot on flooring it? I'm having the same trouble. I'm running direct rod from peddle to Sniper linkage and not getting a fully opened butterfly valve anyhow. MAP goes to 86 kpa. Been trying to figure this out for awhile now.
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Take up the slack in your throttle cable. I have top end at 80% of my throttle cable and it works perfect now.
 
I used the all-thread with hiem joint instead of a cable, but it's interesting that I'm not the only one having this issue with WOT. Wonder if it has to do with tuning parameters on the touch screen?
NYIronPig said:
Take up the slack in your throttle cable. I have top end at 80% of my throttle cable and it works perfect now.
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For those running the Lokar throttle cable, how did you route it? You drill a hole right in front of the hand throttle attachment on the gas peddle, then do you have the cable routed around towards the front and looping back so that the cable is facing back towards the cab, attached at the bottom of the Sniper, and pulling towards the front of the truck when you depress the peddle? Or did you make a big loop and attach to the top of the Sniper bracket so that it is pulling back towards the firewall when you depress the peddle? Things are coming along swimmingly, though a few hard learned lessons along the way but I'm quite happy with things so far!

Thanks!
Clark
 
Looking at Mosley Motors pics looks like it routs around the front and attaches at the bottom. Now I'm having a heck of a time getting @FJ60Cam's stainless fuel line routed around the front of the valve cover. My alternator bracket is right exactly where it shouldn't be for that hard line...
 
midknightc3 said:
Looking at Mosley Motors pics looks like it routs around the front and attaches at the bottom. Now I'm having a heck of a time getting @FJ60Cam's stainless fuel line routed around the front of the valve cover. My alternator bracket is right exactly where it shouldn't be for that hard line...
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yes it does. Have a cold beer, Call Cam in the morning and he will answer all your questions to get you sorted.
 
NYIronPig said:
Take up the slack in your throttle cable. I have top end at 80% of my throttle cable and it works perfect now.
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I wonder if the flattening out at WOT has something to do with the riser block under the adapter? The two throttle ports in the block do not help channel air/fuel entering the intake manifold. I'm thinking of cutting it into one oval. Anybody not using the OE riser block wanna chime in? There has to be a reason for the stumbling.
 
remembering basic theory on intake designs....short fat runners for high rpm and hp. Long skinny runners for low rpm and torque. Guessing the spacer is dual port to effectively make the intake runner length a little longer and improve the performance. The 2f is an engine that never sees high rpm. So making the port below the sniper one opening might make things worse.
 
The other problem that may be more an issue with the sniper than with the carb is that fuel is being sprayed down and the hope is that it stays atomized and mixes with the airflow. However it quickly sees a 90 degree turn in the manifold and a chance for fuel to hit the side and turn back to liquid....this could be causing running issues at certain rpm/temperature ranges.
 
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I see a few of you are setting your timing at 10*, but I am at 5500' and frequently climb up to 7-9,000' or down to 1,000'. Currently I have her set at at 13*, which is what she would have run had I had a functioning HAC. What seems appropriate to y'all? Fixing to fire the old girl up here once I settle my nerves, so I'm getting pretty excited!
 
13° sounds about right at your elevation. High octane fuel can hinder you that high up too. If it pings, back it off a little. I adjusted my timing using a vacuum gauge. After finding the highest vac' I backed it off about 2 inches of Hg. Seems to be happy, but I'll put my light on it soon and see. I was running retarded and so was my timing. :grinpimp:
 
Ran some errands with her yesterday, all I can say is wow. Throttle is super touchy, which will take me some time to get used to. I think the self learning function is getting low RPM figured out, initially she really didn't like my style of tractor engining away from a stop sign in second gear without much gas, but that is actually starting to work really well. Definite flat spot mid throttle, but I have a known exhaust leak with gasket on order, and possibly still a vacuum leak, we will see on that today. Overall, this has been a great improvement and all I'v done is putter around town!
 
midknightc3 said:
Ran some errands with her yesterday, all I can say is wow. Throttle is super touchy, which will take me some time to get used to. I think the self learning function is getting low RPM figured out, initially she really didn't like my style of tractor engining away from a stop sign in second gear without much gas, but that is actually starting to work really well. Definite flat spot mid throttle, but I have a known exhaust leak with gasket on order, and possibly still a vacuum leak, we will see on that today. Overall, this has been a great improvement and all I'v done is putter around town!
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can you data log to record your efi parameters during the flat spot in the acceleration? If you can then this will probably give you the best indication of what is driving the issue.
 
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