|
|
|
Your donations help keep this valuable resource free and growing. Thank you.
|
enough carburetor |
Post Reply 
|
Page <1 34567 10> |
| Author | |
nickleone 
AMC Addicted 
Joined: Oct/04/2008 Location: westminster co Status: Offline Points: 1446 |
 Post Options
 Thanks(0)
 Quote Reply
 Posted: Nov/29/2018 at 1:31pm |
|
|
|
nick
401 71 Gremlin pro rally car sold 390 V8 SX/4 pro rally car sold 1962 Classic SW T5 4 wheel disc brakes |
|
 |
|
|
nickleone
AMC Addicted
Joined: Oct/04/2008 Location: westminster co Status: Offline Points: 1446 |
Post Options
Thanks(0)
Quote Reply
Posted: Nov/29/2018 at 1:34pm |
|
Did I go too far? with the above.
Autolite/Ford 1100 carbs. Lost a few mpg but trans problems did not allow further testing. Nick
|
|
|
nick
401 71 Gremlin pro rally car sold 390 V8 SX/4 pro rally car sold 1962 Classic SW T5 4 wheel disc brakes |
|
|
|
|
Jmerican
AMC Addicted
Joined: Mar/29/2016 Location: Seattle, Wa Status: Offline Points: 585 |
Post Options
Thanks(0)
Quote Reply
Posted: Nov/29/2018 at 2:03pm |
|
Ken drops two atom bombs in one day on the forum to open minds and expand horizons. Two big gifts on two different threads, to the people. I'm not kidding.
|
|
|
|
|
Jmerican
AMC Addicted
Joined: Mar/29/2016 Location: Seattle, Wa Status: Offline Points: 585 |
Post Options
Thanks(0)
Quote Reply
Posted: Nov/29/2018 at 2:06pm |
|
That handsome triple setup. Something ain't right if you're losing mpg, unless it's the fun factor at work.
|
|
|
|
|
farna
Supporter of TheAMCForum 
Moderator Lost Dealership Project Joined: Jul/08/2007 Location: South Carolina Status: Offline Points: 19692 |
Post Options
Thanks(0)
Quote Reply
Posted: Nov/29/2018 at 2:27pm |
|
Nickelone, were all three synchronous, meaning running at the same time? On three carb setups the idle circuits are usually plugged on the outboard carbs, so only the center one idles. Then the linkage is made with some "slack" in it so that the two outboard carbs come in a bit after idle. Some have springs on the end carb linkage so the spring has to give a bit before opening the butterfly. If all three are idling I bet that's where the fuel mileage hit was mostly. Way too rich at idle!! Using PVC for the intake is an interesting concept! I'm not sure about gluing it, though that should be fine if there is enough surface area. You can get plastic welding kits from Harbor Freight cheap enough. The deal with welding plastic is you MUST have the right plastic composition or it won't stick. PVC should be easy enough though. Don't know about CPVC. In this case I don't think the high temp stuff is needed, think regular PVC should be fine with the cool fuel/air mix running through it. Don't think you can readily get CPVC in large enough diameters. I haven't looked for it, but don't recall seeing it bigger than 1" in the chain stores. A commercial plumbing supply might have it larger though.
Edited by farna - Nov/29/2018 at 2:30pm |
|
|
Frank Swygert
|
|
|
|
|
nickleone
AMC Addicted
Joined: Oct/04/2008 Location: westminster co Status: Offline Points: 1446 |
Post Options
Thanks(0)
Quote Reply
Posted: Nov/29/2018 at 2:41pm |
|
Frank,
Progressive linkage with idle circuits in outboard carbs plugged. I used a cable with stops. Center carb tight to cable others with slack. I did not get any highway testing before the trans problems so mpg is from hills and back roads. I am working on the T5 conversion. Engine and trans in the car and have a narrowed 8.8 Ford for rear. Working on truck arms for the rear. Nick |
|
|
nick
401 71 Gremlin pro rally car sold 390 V8 SX/4 pro rally car sold 1962 Classic SW T5 4 wheel disc brakes |
|
|
|
|
tomj
AMC Addicted
Joined: Jan/27/2010 Location: earth Status: Offline Points: 7555 |
Post Options
Thanks(0)
Quote Reply
Posted: Nov/29/2018 at 11:25pm |
yeah, j I don't have aluminum welding capability nor skill. steel is easy! just a ig harder to remove via grinding. just bought a Dewalt die grinder -- very nice! totally happy with it. MIG is "hot glue gun for metal". and steel is very forgiving. just slower. but this is a one-off project! |
|
|
1960 Rambler Super two-door wagon, OHV auto
1961 Roadster American, 195.6 OHV, T5 http://www.ramblerLore.com |
|
|
|
|
tomj
AMC Addicted
Joined: Jan/27/2010 Location: earth Status: Offline Points: 7555 |
Post Options
Thanks(0)
Quote Reply
Posted: Nov/29/2018 at 11:33pm |
hah! yeah I'm closing my eyes and ignoring a lot. the longest path (cyls 1, 6) from booster venturi to valve is about 12" long. I have no idea what the pulses are doing. but Nash had some idea, or something, as there's funny little wedges in the trough; I think of them as anti-reversion wedges. they're so intentional I assume they are there for a reason (lol, but maybe a bad reason, like left-handed lug nuts). given that there's little I can do about it I'm pretending its not there. how's that for engineering? (it *occurred* to me that one could make a device that inserts into the trough and make long plastic runners that lean over the valve cover, hence could be as long as you'd like, with side draft carb on the other side. but there's no point -- the intakes are not all paired! the valve pattern is I EE II EE II EE I aargh. |
|
|
1960 Rambler Super two-door wagon, OHV auto
1961 Roadster American, 195.6 OHV, T5 http://www.ramblerLore.com |
|
|
|
|
tomj
AMC Addicted
Joined: Jan/27/2010 Location: earth Status: Offline Points: 7555 |
Post Options
Thanks(0)
Quote Reply
Posted: Nov/29/2018 at 11:35pm |
well pretty much everything goes up at 195.6ohv.com. I'm a bit behind on this work, but I'm taking pictures and measurements. |
|
|
1960 Rambler Super two-door wagon, OHV auto
1961 Roadster American, 195.6 OHV, T5 http://www.ramblerLore.com |
|
|
|
|
tomj
AMC Addicted
Joined: Jan/27/2010 Location: earth Status: Offline Points: 7555 |
Post Options
Thanks(0)
Quote Reply
Posted: Nov/29/2018 at 11:47pm |
I hope so!! lol. you posted this before -- I recall thinking it was too much carb, but now esp with Ken's posts, I suspect I am wrong. there's a lot of 'low hanging fruit' in the stock 1956.6 head. it's flatly impossible to make it good. but you can sure make it a lot better! I hugely cut down the square, flashing-strewn cast iron around the valve guide (sic) in the valve pocket; like a teaspoon of steel each. it's all square edges, but some places are close to the water jacket so you can't do what you'd want to (seriously, it's so blocky, even never having done anything like this it was easy to greatly improve it). lots of flashing. heavy shrouding right under the valve seats. I cleaned it up back in 2010, then Pete Fleming here in LA worked it over again, mostly valve seats and things he didn't tell me. oh, the combustion chambers were rough rough rough. I got them shiny smooth, mainly with an eye to (less) heat retention. I don't seem to have a lot of good pics of the head work. but compare this to a stock chamber: http://195.6ohv.com/HEAD/images/A%20new%20valve%20seats.jpg. this was my 2010 work. it's better now. it's not good, just better. |
|
|
1960 Rambler Super two-door wagon, OHV auto
1961 Roadster American, 195.6 OHV, T5 http://www.ramblerLore.com |
|
|
|
|
Post Reply
|
Page <1 34567 10> |
Tweet
|
| Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |
Click for TheAMCForum Rules
Topic Options
farna wrote: