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  #11  
Old 09-12-2017, 07:29 PM
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Very interesting! Are the valves similar to a reed valve? More photos, please!

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  #12  
Old 09-12-2017, 09:35 PM
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Quote:
Originally Posted by Dr Crankenstein View Post
Very interesting! Are the valves similar to a reed valve? More photos, please!

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They are little discs held with a through bolt. They were not too successful, and stopped production in the 60s. I got this one 15 years ago at a swap meet for $60--near new. He had it on a 65 chevy 327 bob truck, and it got his motor after a few miles. It looks like the Accel had some water cooling adapted in the transfer tube...I blew the head gaskets off a flat top piston 350. It ran great till about 3500 RPM and then wanted to boost way big in a hurry. If I can keep the boost down to 4-5 psi with a smaller low compression motor I think I can make it liveable, just Not a big HP adder--maybe 50 or so. Mainly a special interest thing, and they have a sweet tone--great muffler. Heres some web pics of them and how mine was on my 350.
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File Type: jpg Zagato 456.jpg (143.2 KB, 28 views)
File Type: jpg ACCEL.jpg (57.8 KB, 30 views)
File Type: jpg Zagato 646.jpg (154.6 KB, 31 views)
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  #13  
Old 09-12-2017, 10:28 PM
bob w bob w is offline
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I've got one of those laying around. Never tried to use it. Saw one on a '55 Chevy a few years ago. The owner claimed he had the bugs worked out and it ran fine.
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  #14  
Old 09-13-2017, 05:21 PM
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Made a little progress today. Replaced the carb mount with a 3" riser that also goes forward an inch over the distributor. Cut the T3 mounts off the headers and rewelded then on flat--easier to work with. Have 2"exhaust pipe to the turbo on each side, 2.5, or 3" might look better, may use that, haven't decided. Have a couple 3" 90s ordered for the vacuum side, I'll decide when they come. Was considering making the vac side tube out of 2"x3" sq with 3" attaching nipples.
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  #15  
Old 09-13-2017, 05:28 PM
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Quote:
Originally Posted by bob w View Post
I've got one of those laying around. Never tried to use it.
Does the one you have have the Accel marked vac side tube like the pic? I was thinking off making a similar one and was wondering how they used water fittings. I'm not sure if they for heating the tube or cooling. They may ice up. Had a log ram manifold icing once.
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File Type: jpg Zagato400 (1) (1).jpg (51.7 KB, 28 views)
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  #16  
Old 09-13-2017, 06:54 PM
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Thanks for the pics. (Springs on the valves?)

I can't imagine the Accel piece would be heated... no advantage to that in my mind. It's probably meant for marine applications... fresh, cold water to reduce intake temps makes better sense (to me) than heating.

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  #17  
Old 09-14-2017, 07:01 AM
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Quote:
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(Springs on the valves?)

fresh, cold water to reduce intake temps makes better sense (to me) than heating.

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The little fiber disc check valves are just hanging down in the boost part of the adapter with no springs. When the air fuel mix from the turbo starts it pushes the checks closed and the boosted mix is all there is. Cooling is the big deal with turbochargers, but this setup is running water to the non boosted part of the rig. Venturies in the carb changing liquid gasoline into vapor is the basis of airconditioning, and lots of cars have heated intakes. For sure hose barbs in and out on this blue one. Dunno.. I just like the looks. (Deep thinker)
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  #18  
Old 09-16-2017, 07:10 PM
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When I was driving with this setup, it always ran down the road totally through the turbo with at least a pound or two of boost. Pretty pleasant to drive --real torquie feeling. It loved hills, didn't know they were there. That's how industrial (tractors) use turbos. Torque enhancers. Torque is not really fast, but it is fun.
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  #19  
Old 09-21-2017, 03:14 PM
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Got a little more done on the drawthrough install. Fabbed up a 'draw' tube for the turbo out of 2"x3" sq tube. Was going to use 3" 90 degree tubing, but it was too big, so went faactory style. Welded up a drain plate for the fuel pump flange and used one of the big 90s to straighten the exhaust a little. Installed 2 1/2" tubing for the exhaust crossover/turbo flange and got that welded up and installed. Waiting on some gaskets and water injection pump, but closing in.
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  #20  
Old 09-23-2017, 08:54 PM
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I was testing the boost actuated butterfly on the carb adapter, and the seals were shot. Pressurized gas/air was flowing through the actuator and back through the turbo. No wonder it was running away with itself. Might even be why I got it for $60.. Just gutted it and plugged the holes. Took out the butterfly and the piston and rod. Started pluming the oil feed/drain. Here's a good shot inside the adapter at the little round check valves.
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File Type: jpg 100_7399.jpg (110.2 KB, 15 views)
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