It has now been two tanks of fuel since the heat riser was installed. Warm ups are now much faster, choke is not on as long, and in town mileage has risen from 9 to 10 mpg. Not enough info on hwy mpg difference. Get 15 mpg right now, and don't really expect anymore.
MAF heat riser update
- Thread starter Ryan S.
- Start date
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- Thread starter
- #3
Did not take long to install. Had to pull the carb though. Hoping to get a digital camera soon. I'll post pics later
- Thread starter
- #5
Tapped in at the heater control valve to the riser, then out the riser to the firwall. Basically the hose from the valve to the firewal is redirected through the riser. I'll post pics soon (couple days?). If you install one b/4 I post, directions come with the kit. The kit was on sale from MAF for about $50 several weeks ago.
That was one of the better mods I had done to my 2F. Before I put it on the truck was really cold-blooded in the winter.
I will be doing the same thing soon myself. The instructions are pretty straight-forward. The main thing is getting the carb off especially the stock carb. When I do this, I plan to do a carb swap at the same time....back to stock.
- Thread starter
- #9
I was going memory yesterday and gave the wrong hose connection info. You still tap into the heater control valve near the firewall from there to the riser. The second connection is from the riser to the connection on the cylinder head, near the rear of the motor.
- Thread starter
- #10
riser hose pics
A few pics of the hose routing
Top: Connection to cylinder head outlet (center of pic, you can see the clamp threads)
Middle: Connection into the riser
Bottom: Connection to the heater control valve
A few pics of the hose routing
Top: Connection to cylinder head outlet (center of pic, you can see the clamp threads)
Middle: Connection into the riser
Bottom: Connection to the heater control valve