Re: SkinnyG's '61 Apache
 

This just in: 13.7mpg if I stay under 10inHg vacuum and never accelerate.

Re: SkinnyG's '61 Apache
 

I fueled up with Chevron 94 yesterday. I tune on 91, but run 94 for a bit more safety. We have no E85 here. 94 was $2.049/L. $7.76CDN a gallon, or $5.72US a gallon.

You can see why I daily a Hyundai Accent now, eh?

This is an LQ4, pushing a brick. A brick in the shape of a parachute. A 2003 Silverado with a 6.0 is rated at 10mpg city, 11mpg highway.

I'm doing REALLY good, now that I see that.

Re: SkinnyG's '61 Apache
 

I mean considering the extra Hp you have vs a stock silverado I'd say your winning but I'm not sure the weight difference and brickness difference lol. I have an LS swap that I had started gathering parts for years ago that I hope actually increases MPG but I dunno when I'll ever get on it again. 4.8 and 5spd into a 97 reg cab toyota tacoma in place of its 2.7L that was somehow managing 13mpg last time it ran.

Re: SkinnyG's '61 Apache
 

Re: SkinnyG's '61 Apache
 

I finally got around to doing a video on "decapping" injectors.

This is a process of removing a "diffuser" on the end of most LS injectors, and turns your 24lb injector into roughly a 75lb injector. ECU tuning required.

I'm running decapped injectors in my '61, and they work fine.

Re: SkinnyG's '61 Apache
 

Oh dang.

Fuel pump or fuel pump related.

https://www.gwellwood.com/wordpress/...37-672x378.jpg

Re: SkinnyG's '61 Apache
 

Truck is at home in the house garage, up on jack stands in anticipation of dropping the fuel tank.

Not tomorrow though - I have physio after work, and while I usually have dreams of coming home and working on stuff, I'm usually lucky if I can even tie my shoes after the IMS and elecro-shock.

Re: SkinnyG's '61 Apache
 

Looks like you were on a nice drive until it wasn’t. Hope the fix is simple!

Re: SkinnyG's '61 Apache
 

The fuel pump relay was clicking, and I tried bypassing the relay and powering the pump directly, but it wasn't working. I think it's the connection inside the tank. I remember building it going "this seems rinky-dink."

https://www.gwellwood.com/wordpress/...df-672x378.jpg

I re-did the internal connections , and it is now "robust."

Re: SkinnyG's '61 Apache
 

I went through a similar situation with the exact same fuel tank set up in my '60. After redoing (soldering) the sending unit connections and running a solid length of 10 gauge wire, it's running better than ever.

Re: SkinnyG's '61 Apache
 

Old and busted "hot" connection for the fuel pump (I'm using a Walbro 450):

https://www.gwellwood.com/wordpress/...17-672x376.jpg

https://www.gwellwood.com/wordpress/...35-672x377.jpg

I removed that gray connector, and crimped/soldered/heat-shrunk all the wires to their respective pins, with 12ga wire to the pump. There should be no problem now.

Re: SkinnyG's '61 Apache
 

Back up to 8psi boost now, and with all eight cylinders properly firing ... HOOO BOY!!!!

I have a smile.

Re: SkinnyG's '61 Apache
 

Great news man

Re: SkinnyG's '61 Apache
 

The tank came out really easy - I designed it to be serviceable (and it worked!).

The straps (two nuts), the fill/vent hoses (hoseclamps), and the feed/return lines (two AN fittings).

Took maybe 30 minutes.

The bed on the other hand, that would take a LOT longer.

Re: SkinnyG's '61 Apache
 

Added a relay to turn on the cooling fan during AC. It's using the Trinary pressure switch off the accumulator. Not sure I'm totally happy with the result, but we will see.

You can just barely see the reorganized relays to the right of the rad.

https://www.gwellwood.com/wordpress/...53-672x378.jpg