Re: Holley jet area chart
[Re: AndyF]
#2415218
12/08/17 12:56 PM
12/08/17 12:56 PM
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Joined: Feb 2005
Posts: 20,279 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,279
PA.
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This may give you a start. I think Thumper posted this up but I'm not sure.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.38@138.67
Livin and lovin life one day at a time
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Re: Holley jet area chart
[Re: pittsburghracer]
#2415323
12/08/17 04:40 PM
12/08/17 04:40 PM
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Joined: Jan 2007
Posts: 8,126 Mt Morris Michigan
mopar dave
OP
master
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OP
master
Joined: Jan 2007
Posts: 8,126
Mt Morris Michigan
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Sorry guys, been alittle busy. Ok, i have an old Barry Grand book that lists all pin and sq in sizes for each jet, doesnt look accurate to what im finding on the web. Also, im reading that jet area in pri+pvcr needs to be 10-15% greater than sec side.Thanks
Last edited by mopar dave; 12/08/17 04:42 PM.
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Re: Holley jet area chart
[Re: mopar dave]
#2415677
12/09/17 11:30 AM
12/09/17 11:30 AM
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Joined: Jan 2003
Posts: 6,416 nielsville, minn.
quickd100
master
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master
Joined: Jan 2003
Posts: 6,416
nielsville, minn.
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Would anyone here have a Holley jet chart that shows jet sq" area that they could post up? Just playin with some numbers trying to figure what pvcr's to add to pri side with pri main jet to equal sec main jet area fuel. Thanks Dave, I've got a sheet from Holley. They don't go by area but rather by flow. For example, a #80 flows from 690.0 CC's minumum to 717.0 CC's Max with a mean flow of 703.0 CC's. They are flowed using mineral spirits in CC's per minute. I don't know at what pressure, or or vacuum drop they use. I called Holley back in July 02 and they sent me this sheet. Dave
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Re: Holley jet area chart
[Re: Tommy D]
#2415704
12/09/17 12:24 PM
12/09/17 12:24 PM
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Joined: Feb 2005
Posts: 20,279 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,279
PA.
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Glad to see someone could use my list. Was going to look for it, and saw it already posted. Thank you P-burg! Sorry I couldn't remember who posted that but I figured it was worth saving.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.38@138.67
Livin and lovin life one day at a time
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Re: Holley jet area chart
[Re: mopar dave]
#2415739
12/09/17 01:58 PM
12/09/17 01:58 PM
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Joined: Jul 2004
Posts: 19,318 State of confusion
Thumperdart
I Live Here
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I Live Here
Joined: Jul 2004
Posts: 19,318
State of confusion
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Hey thats for that info, but according to Andy flow values are not accurate with pvcr jets because of the restrictive circuit its in, so not sure how to figure pri+pvcr jetting. I have an old Barry Grant carb book that has all the charts, but not sure if their still current. This gets ya close.........square jet for ideal afr's and plug readings at wfo then drop down the primary jets 6-8 for now and see where that puts the wfo readings then size the pvcr's accordingly..........let's not confuse things more than needed...........
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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