- Thread starter
- #221
I do run cats. They will smell like gas out of the tailpipe most times without.
Builds Project R2D2 Sixty - 1986 Retro Refresh (1 Viewer)
- Thread starter wngrog
- Start date
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Noted. Is it obnoxious like a carburetor with no converter or just noticeable? Like sitting idle at a red light with the windows down situation.
- Thread starter
- #223
I see zero reason not to run a cat. Update it if it worries you
Yeah you’re probably right. I had a childish hope it would free up some power. Easier to leave in place for now anyway.
Where do you mount the Sniper coolant temperature sensor? I’ve read a couple different places work. Thermostat housing, some spot on the block(didn’t see a picture sounded like maybe the block drain?). Don’t really want to eliminate my stock sender.
- Thread starter
- #225
I normally put it in the block but this time I’m going into the thermostat. I’m getting it from powder tomorrow.
Deleting cats frees up zero power. And everyone driving behind you will thank you if you keep them 
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You can offset the reduction in emissions by getting one of the smudge pots Nolen will post a video of shortly 
- Thread starter
- #229
Ole R2D2 is put together. Engine fired perfectly. Everything sounds good.
Problem with the lower thermostat housing getting a good seal with the temp sensor so I had to remove it. I had a non smog lower that was brand new here and installed it and moved the temp sensor to the side of the block where I normally install it.
Now I don’t have any temp sensor. It’s sending an error code. Without that input I can’t tune it.
I’m going to toss a new sensor at it then if that does not work I’ll see what Holley says.
She’s a beauty.
Problem with the lower thermostat housing getting a good seal with the temp sensor so I had to remove it. I had a non smog lower that was brand new here and installed it and moved the temp sensor to the side of the block where I normally install it.
Now I don’t have any temp sensor. It’s sending an error code. Without that input I can’t tune it.
I’m going to toss a new sensor at it then if that does not work I’ll see what Holley says.
She’s a beauty.
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- Thread starter
- #230
Went and grabbed a block sensor from another sniper and boom......all tuned up. Ready to drive.
I’ve read this before (probably from you) and now I’m racking my brain as to where this could be. I thought all that’s on the side of the block is the block drain.
Good to hear it’s running and tuned!
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- #232
Yes. Replace the block drain with the sniper sensor.
Those 4Runner wipers are mighty tempting. I’ll probably do it. Eventually. What’s your feedback on those?
- Thread starter
- #235
Ive had them on my 60 for some time. I also had to replace the internal arms on my 60 so I did it all at once.
- Thread starter
- #236
Long day testing the Sniper.
Tooling along great this morning and it ran out of fuel on me and I coasted to a stop on the exit ramp about 10 miles out.
Went to check all my grounds and power to the fuel pump and snapped off the positive post on the powersurge
Luckily @under_psi was close and he strapped me to my buddys business with the Raptor.
My wife was close. Came and got me and I went home and robbed the PowerSurge off Ole Blue.
Got another 30 miles or so in and stopped for some Corn Free and when I left there I lost fuel again. Pulled over. Cracked all the lines and verified I was getting fuel to the PS and from the PS. Problem was from PS to Sniper I was only getting 20 psi and it needs 60.
Basically from there home if I kept high RPM the stock pump would keep up with the flow and I kept pressure up at 60 but if I let it drop below 3000 rpm it would lose “prime” and die.
Got home and pulled the PS and reinstalled it on Blue and have no issues.
Gotta figure this one out. I’m leaning toward a weak stock fuel pump.
Tooling along great this morning and it ran out of fuel on me and I coasted to a stop on the exit ramp about 10 miles out.
Went to check all my grounds and power to the fuel pump and snapped off the positive post on the powersurge
Luckily @under_psi was close and he strapped me to my buddys business with the Raptor.
My wife was close. Came and got me and I went home and robbed the PowerSurge off Ole Blue.
Got another 30 miles or so in and stopped for some Corn Free and when I left there I lost fuel again. Pulled over. Cracked all the lines and verified I was getting fuel to the PS and from the PS. Problem was from PS to Sniper I was only getting 20 psi and it needs 60.
Basically from there home if I kept high RPM the stock pump would keep up with the flow and I kept pressure up at 60 but if I let it drop below 3000 rpm it would lose “prime” and die.
Got home and pulled the PS and reinstalled it on Blue and have no issues.
Gotta figure this one out. I’m leaning toward a weak stock fuel pump.
- Thread starter
- #237
Here is a video of the pressure gauge as it was struggling to build pressure
- Thread starter
- #239
I’m used to it with this truck. It kicks my ass every time I do anything to it.
- Thread starter
- #240
Finally got the lift back to work on R2D2.
@FJ60Cam set me up with an in-line pump setup so I could get this thing down to one fuel pump to simplify things. Theory is based on the pulsating flow I was getting earlier.....plus I broke the positive lug off the PowerSurge so it had to be removed anyway to get repaired
So. Set up the new pump yesterday. Primed the system. Gauge looked good. Fired it up and it ran smooth as silk.
For 10 minutes then the surge returned.
I messaged Cam and Holley and they both suggested I had an obstruction in the return.
Seeing that the truck ran so good before the fuel injection and that it also has a brand new OEM tank I just assumed the return line was good.
Well that ASSumption was wrong. The return hard line along the frame has a blockage. I’m guessing the fuel pump return was doing all the work with the carburetor because once I bypassed the hard line I now have a perfectly running Snipered 2F.
But since this truck hates me I still have a coolant leak in the old upper thermostat housing I had powder coated. I’m going out of town for a few days so I put in an order for a new upper and a couple hoses to replace when I return. Hopefully that will get me there.
@FJ60Cam set me up with an in-line pump setup so I could get this thing down to one fuel pump to simplify things. Theory is based on the pulsating flow I was getting earlier.....plus I broke the positive lug off the PowerSurge so it had to be removed anyway to get repaired
So. Set up the new pump yesterday. Primed the system. Gauge looked good. Fired it up and it ran smooth as silk.
For 10 minutes then the surge returned.
I messaged Cam and Holley and they both suggested I had an obstruction in the return.
Seeing that the truck ran so good before the fuel injection and that it also has a brand new OEM tank I just assumed the return line was good.
Well that ASSumption was wrong. The return hard line along the frame has a blockage. I’m guessing the fuel pump return was doing all the work with the carburetor because once I bypassed the hard line I now have a perfectly running Snipered 2F.
But since this truck hates me I still have a coolant leak in the old upper thermostat housing I had powder coated. I’m going out of town for a few days so I put in an order for a new upper and a couple hoses to replace when I return. Hopefully that will get me there.
