Re: Holley jet flow chart?
[Re: sshemi]
#1808435
04/21/15 10:11 AM
04/21/15 10:11 AM
|
Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
Taking time off to work on my car
|
Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
|
"Somewhere" I saw a some a couple of jet flow charts, but I remember comparing them and the #s weren't in synch w/ each other and didn't bother to keep the info. I don't know if it will help, but I posted THIS CHART on http://racingfuelsystems.myfunforum.org a ways back. If nothing else, you could calc areas for the jet diameters and ballpark it by looking for a 10% increase in area to start with.
|
|
|
Re: Holley jet flow chart?
[Re: sshemi]
#1808668
04/21/15 03:30 PM
04/21/15 03:30 PM
|
Joined: Nov 2004
Posts: 6,890 North Alabama
Monte_Smith
master
|
master
Joined: Nov 2004
Posts: 6,890
North Alabama
|
I dont have the tools to measure the hole of them. You don't need to measure them. Holley jets are based on flow, not hole size. But to get you close, use the chart posted above, see what actual drill size is of the jets you HAVE. Add 10% and see what jet you NEED based on that calculation. You will still have to tune it, but this will get you close. Figuring a 10% increase in area, will be more accurate than just a 10% increase in drill size. Monte
Last edited by Monte_Smith; 04/21/15 03:33 PM.
|
|
|
Re: Holley jet flow chart?
[Re: Monte_Smith]
#1808765
04/21/15 05:43 PM
04/21/15 05:43 PM
|
Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
Taking time off to work on my car
|
Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
|
BradH: "... you could calc areas for the jet diameters and ballpark it by looking for a 10% increase in area to start with." lewtot184: "i figure the square inches of opening on the jets and then multiply the percentage of increase or decrease i want." Monte_Smith: "see what actual drill size is of the jets you HAVE. Add 10% and see what jet you NEED based on that calculation.... Figuring a 10% increase in area, will be more accurate than just a 10% increase in drill size." Uhhh... didn't we all pretty much just tell the OP the same thing? Well, at least he got a consistent response.
|
|
|
Re: Holley jet flow chart?
[Re: sshemi]
#1810089
04/23/15 12:48 PM
04/23/15 12:48 PM
|
Joined: Jul 2004
Posts: 19,317 State of confusion
Thumperdart
I Live Here
|
I Live Here
Joined: Jul 2004
Posts: 19,317
State of confusion
|
92s from the beginning. Put in 97s pri and 98s sec. Seems to work ok but i only got to test drive a couple of runs then the transmission gave up:-( What are your idle and Hi speed bleeds.
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.....
|
|
|
Re: Holley jet flow chart?
[Re: sshemi]
#1810192
04/23/15 03:02 PM
04/23/15 03:02 PM
|
Joined: Jan 2003
Posts: 6,389 nielsville, minn.
quickd100
master
|
master
Joined: Jan 2003
Posts: 6,389
nielsville, minn.
|
That doesnt make sence??? Guy at holley said every nr up is 2% increase??? The average mean flow of a #92 is 1150.0 cc;s per minute. The average men flow of a # 94 is 1260.0, #97 is 1440.0 and #98 is 1500.0. That's straight off the Holley Sheet.Dave
|
|
|
Re: Holley jet flow chart?
[Re: sshemi]
#1810842
04/24/15 12:13 PM
04/24/15 12:13 PM
|
Joined: Jul 2004
Posts: 19,317 State of confusion
Thumperdart
I Live Here
|
I Live Here
Joined: Jul 2004
Posts: 19,317
State of confusion
|
No clue there then and this is new to me so time to observe and learn.
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.....
|
|
|
|
|