Supercharged SL6 wrote:
I have the same problem with my 575 blow thru thats why I through it in the garbage and going with FI.
Why don't you send it to me...I could use another 575.
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| Turbo 74 Duster https://slantsix.org/forum/viewtopic.php?f=30&t=42393 |
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| Author: | madmax/6 [ Sat Feb 19, 2011 11:20 pm ] |
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TIMEING and valve adjust,BEFORE you start fiddleing with the carb or you are working against yourself. |
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| Author: | Rug_Trucker [ Sun Feb 20, 2011 5:45 am ] |
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Charrlie_S wrote: turbo66valiant wrote: I've purchased 5 new Mighty Demons now and all have had shavings in them. One had a bent butterfly. Good luck And you bought more after the first two?[/quote Barry Grant is now out of business! |
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| Author: | 1974duster kev [ Sun Feb 20, 2011 7:55 am ] |
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I was gonna adjust the valve lash today while i have the valve cover off should i re torque the head studs? I think i've read somewhere that others have and (i'm using a copper head gasket) Kev |
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| Author: | madmax/6 [ Sun Feb 20, 2011 10:50 am ] |
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YES,I would have retorqued after 4 heat cycles without even driveing it.I allways retorqe the day after I get my heat cycles in.I am a little anal on retorqeing,can you really check it and do it too many times?I have never had to replace a head gasket and I run over 12.1 cmpression.Knocking on wood as I type.Guzzi Mark |
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| Author: | turbo66valiant [ Mon Feb 21, 2011 10:26 am ] |
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Rug_Trucker wrote: Barry Grant is now out of business!
That's to bad. Not good to see another hot rod business out of business. The Demon is such a good looking carb. Later |
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| Author: | 1974duster kev [ Mon Feb 21, 2011 4:34 pm ] |
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Not much progress lately been driving real nice trying to keep this clutch together till I figure out my plan for the trans. It's really hard not to floor it specially hearing the BOV during shifts Kev |
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| Author: | Shaker223 [ Mon Feb 21, 2011 5:09 pm ] |
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Just take it slow and get some baseline driving/tuning under your belt. |
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| Author: | Supercharged SL6 [ Wed Feb 23, 2011 6:51 pm ] |
| Post subject: | Barry Grant Carb |
I have the same problem with my 575 blow thru thats why I through it in the garbage and going with FI. I bet your throttle shafts are loose my carb was brand new and had .015 clearance there tech guy said that clearance sounded about right but couldn't give me a spec. I have a 30 year old wore out Holly with about .006 clearance. My carb would not idle right no matter what i did. Take a can of carb cleaner and with it idleing as low as you can set it, spray around throttle shafts if idle picks up and smooths out shafts are probably loose if you have a dail indicator you can check it with that. Old Holly idled perfect on engine so I knew I didn't have manifold leak like tech guy swore I had. I ran carb last summer I changed PCV valve so it wouldn't suck as much through valve used a GM valve I believe can try to find # if you want. I also leaned out jetting by about 10 sizes front & back. Car ran good at full throttle was 11.5-12 on AFG stumbled at times off idle and was slight lean at cruise. My opinion of a Barry Grant Carb is its a total piece of junk if I had it to do over I would modify a carter ABF there is a good article on a web site carburator blowers.com on modifying an ABF for blow thru and it wouldn't cost $6oo that I payed for Grants piece of junk GOOD LUCK |
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| Author: | turbo66valiant [ Fri Feb 25, 2011 11:21 am ] |
| Post subject: | Re: Barry Grant Carb |
Supercharged SL6 wrote: I have the same problem with my 575 blow thru thats why I through it in the garbage and going with FI.
Why don't you send it to me...I could use another 575.
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| Author: | 1974duster kev [ Tue Mar 29, 2011 1:52 pm ] |
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Anybody ever make there own sheet metal intake for the slant? im curious to make one, i wanna practice some tig Kev |
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| Author: | Shaker223 [ Tue Mar 29, 2011 5:17 pm ] |
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Not mine but it has been done. 
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| Author: | 1974duster kev [ Tue Mar 29, 2011 8:49 pm ] |
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Holy short, isnt short better for high rpm and long runner for low end or am i saying that backwards? Kev |
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| Author: | Joshie225 [ Tue Mar 29, 2011 10:20 pm ] |
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1974duster kev wrote: Holy short, isnt short better for high rpm and long runner for low end or am i saying that backwards?
Kev No, you've got it right. Thing is that manifold isn't tuned. Look at the effective length for runners 1 and 6. |
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| Author: | Dart270 [ Wed Mar 30, 2011 5:09 am ] |
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There are much better ones than that. Jason+Howard Davis have a sweet one on their 11 sec NA alky Duster, and Charles Myers reportedly has one. Drakes have one on their Rampage (hopefully someday to see the light of day). All I've seen are fairly short runners (5-8") into a large plenum all the way across. Lou |
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| Author: | Shaker223 [ Wed Mar 30, 2011 5:13 am ] |
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It was for a factory OEM slant six draw thru turbo set up that never made it to production. |
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