Quote:
Ahhh, gotchya.
That being said, that would be for gasoline...you could probably go 3-4 jet sizes bigger over that if E85 was on the menu...I'm sure with E15-20...+1 size might be in order.
-D.Idiot
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| Jetted up carb. https://slantsix.org/forum/viewtopic.php?t=44735 |
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| Author: | Ross [ Tue Apr 26, 2011 8:53 am ] |
| Post subject: | Jetted up carb. |
Hey guys. So my accelerator pump is about done and my carb needs rebuilt. It has lean burn. And it's a 1945 Holley. My dad said he was gonna look and see if he can get one through his shop or look around for one that is jetted up a bit since I don't really have any money for a super six. Maybe hei if I'm lucky. How big can I go on the jets? And what is the best single bbl? Thanks Cody |
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| Author: | DusterIdiot [ Tue Apr 26, 2011 6:31 pm ] |
| Post subject: | Uhhh... |
You only have 2 stock choices: Holley 1920 #58 jet Holley 1945 (pre-79) #61 jet I wouldn't bother with a Carter BBS and your truck. -D.Idiot |
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| Author: | SlantSixDan [ Tue Apr 26, 2011 7:26 pm ] |
| Post subject: | Re: Uhhh... |
Quote: You only have 2 stock choices:
How d'you figure this one-size-fits-all business? Fact is, there were many different jet sizes used in the many different 1920s and 1945s installed on the various year-model-engine-transmission-emission package configurations.
Holley 1920 #58 jet Holley 1945 (pre-79) #61 jet |
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| Author: | drgonzo [ Tue Apr 26, 2011 8:01 pm ] |
| Post subject: | |
I think when I had my 1920 apart it had a 54 main jet. I just added headers so now seems like a good time to play around with jetting. Ooops, I got a lil off on a tangent there. |
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| Author: | DusterIdiot [ Wed Apr 27, 2011 5:34 am ] |
| Post subject: | Subject line... |
Quote: How d'you figure this one-size-fits-all business? Fact is, there were many different jet sizes used in the many different 1920s and 1945s installed on the various year-model-engine-transmission-emission package configurations.
The subject line he was asking for was jetting up...that's the max jetting that these carbs can use without going super rich...the 1920 with a 54-55 and the 1945 with a 58 are too lean to get a stock duster to motivate safely out of it's own way...I can't imagine a truck being any better. If he retains the lean burn he won't be able to jet up anyway especially with the timing locked in.-D.Idiot |
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| Author: | SlantSixDan [ Wed Apr 27, 2011 10:05 am ] |
| Post subject: | Re: Subject line... |
Quote: The subject line he was asking for was jetting up...that's the max jetting that these carbs can use without going super rich
Ahhh, gotchya.
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| Author: | Ross [ Wed Apr 27, 2011 4:18 pm ] |
| Post subject: | |
Thank for the help guys! Im gonna try and do the hei sometime. Idk when though. |
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| Author: | DusterIdiot [ Wed Apr 27, 2011 8:01 pm ] |
| Post subject: | And then... |
Quote: Ahhh, gotchya.
That being said, that would be for gasoline...you could probably go 3-4 jet sizes bigger over that if E85 was on the menu...I'm sure with E15-20...+1 size might be in order. -D.Idiot |
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