Re: Jets & air bleeds
[Re: hemi-itis]
#2004015
02/02/16 10:43 AM
02/02/16 10:43 AM
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Joined: Feb 2003
Posts: 1,942 Metro Detroit
OUTLAWD
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top fuel
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Not sure how it applies to a blown application, but I thought the guideline was the HS bleeds generally end up 26-28 when emulsion is correct...
Faster, Faster until the thrill of speed overcomes the fear of death...
71 Swinger - slowly collecting dust/parts 66 Belv. II - just a streetcar 88 Mustang - turbo LS beater
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Re: Jets & air bleeds
[Re: hemi-itis]
#2004036
02/02/16 11:52 AM
02/02/16 11:52 AM
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Joined: Jan 2003
Posts: 19,385 Las Vegas
Al_Alguire
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I would agree with Dom and start with a 28-9 HS bleed. What you have is way to big IMO for the top end on any application especially in a blown application.
What fuel are you using? Each race fuel will have a different stoich reading. For instance what we use in the heads up car is best closer to 12.6. Just saying this may be worth looking into as you may be WAY leaner than you think.
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: Jets & air bleeds
[Re: OUTLAWD]
#2004055
02/02/16 12:40 PM
02/02/16 12:40 PM
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Joined: Jan 2004
Posts: 13,247 Mt. Vernon, Ohio
dartman366
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Not sure how it applies to a blown application, but I thought the guideline was the HS bleeds generally end up 26-28 when emulsion is correct... that is how I understand it also, sound's like you need to start dropping the bleed size down, if i remember correctly 26 is where my bleed size is on my dominator, but I would start dropping them down 2 sizes at a time, car should start picking up with the added fuel if it is in fact lean.
Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.
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Re: Jets & air bleeds
[Re: hemi-itis]
#2004086
02/02/16 01:45 PM
02/02/16 01:45 PM
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Joined: Jul 2004
Posts: 19,318 State of confusion
Thumperdart
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That's what I was unsure of.If one changed the AFR differently than the other my jet selection ends at 99.I want to fatten the bleed and take some jet out.Then see how it effects my AFR's.I also put an air temp sensor in the intake to see what the temp is when I hit the heat ceiling.I also wonder how back pressure effects the AFR's. Just throw some 28`s in there and be prepared to POSSIBLY jet down. Read the post Mark posted to grasp the relationship between e-bleeds and hi and low bleeds to see how they SHAPE the curve and how the jet in fuel and booster outlet control it.......Then there`s angle channel sizing etc.
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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Re: Jets & air bleeds
[Re: hemi-itis]
#2004305
02/02/16 06:59 PM
02/02/16 06:59 PM
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Joined: Dec 2007
Posts: 12,592 Great Neck,LI,new york
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That's what I'm trying to find out Andy,bleeds VS jets.Now at .035 and will go .028. Al,I'm still on pump gas.Would like to find how it goes on pump junk,get it consistant so I can tune the suspension. Caltracs & Vikings on all 4 corners. My 60 are not that good
HEMI-ITIS has no cure. My condition is fully BLOWN!!
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Re: Jets & air bleeds
[Re: OUTLAWD]
#2004307
02/02/16 07:01 PM
02/02/16 07:01 PM
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Joined: Dec 2007
Posts: 12,592 Great Neck,LI,new york
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Not sure how it applies to a blown application, but I thought the guideline was the HS bleeds generally end up 26-28 when emulsion is correct... That appears to be where I end up with smaller jets.
HEMI-ITIS has no cure. My condition is fully BLOWN!!
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Re: Jets & air bleeds
[Re: hemi-itis]
#2004308
02/02/16 07:03 PM
02/02/16 07:03 PM
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Joined: Dec 2007
Posts: 12,592 Great Neck,LI,new york
hemi-itis
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Last pass the plugs were white with NO speckling,I know if I could have fattened it up there was a few MPH to be had.
Last edited by hemi-itis; 02/02/16 07:04 PM.
HEMI-ITIS has no cure. My condition is fully BLOWN!!
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Re: Jets & air bleeds
[Re: MR_P_BODY]
#2004311
02/02/16 07:06 PM
02/02/16 07:06 PM
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I use the ratio of 1 bleed size = 2 jet sizes.. its close but not perfect.. so if you want to drop 10 jet sizes you drop 5 bleed sizes So that can be done that way and not change AFR's??
HEMI-ITIS has no cure. My condition is fully BLOWN!!
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Re: Jets & air bleeds
[Re: hemi-itis]
#2004382
02/02/16 08:58 PM
02/02/16 08:58 PM
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Joined: Jul 2004
Posts: 19,318 State of confusion
Thumperdart
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Last pass the plugs were white with NO speckling,I know if I could have fattened it up there was a few MPH to be had. You can NEVER fatten it up enuff w/38 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.....
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Re: Jets & air bleeds
[Re: Dragula]
#2004480
02/02/16 11:38 PM
02/02/16 11:38 PM
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Joined: Jul 2004
Posts: 19,318 State of confusion
Thumperdart
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Do they differ in their fuel "curve" needs? Cos a 38 bleed is WAY out in left field "generally..........
Last edited by Thumperdart; 02/02/16 11:38 PM.
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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Re: Jets & air bleeds
[Re: Thumperdart]
#2004505
02/03/16 12:11 AM
02/03/16 12:11 AM
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Joined: May 2004
Posts: 12,419 Taxes & Virus's R-US, NY
Dragula
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Do they differ in their fuel "curve" needs? Cos a 38 bleed is WAY out in left field "generally.......... I tried the basic setup based on the size of the carb....No worky, so lets go with, they are different. Now I could share my setup, but mine is NA and a single carb...Probably totally different, dunno. I am not a carb guy. I do know that my AFR is right around 11.9/12.0 WOT....And I need to lean it out just a tad more, and then work on my transition. These carbs idle better and cruise better than anything else I have seen, but I still struggle with the transition which is port #5 I think.... You also have to remember, these uncover a lot of throttle really quickly being what they are...I have called and received tuning advice, and I found the best way is to street it and watch the AFR...Trial and error.
Last edited by Dragula; 02/03/16 12:13 AM.
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Re: Jets & air bleeds
[Re: Dragula]
#2004593
02/03/16 02:27 AM
02/03/16 02:27 AM
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Joined: Dec 2007
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He is using SV1's for carbs you guys know, right?......And they do not always fall into the same "range" as other carbs do for jetting.....Gots to follow the AFR....Its the only way I was able to start gaining on mine. I'm no expert,,,,but I did stay in a Holiday Express once Dom seems to be right on, Patrick told me to drop the bleeds down and jet as needed. Guess we will see if the jets & bleeds mimick those of a Dominator.I also had an issue breaking the throttle blades open from idle, I believe the 15 inches of vacume at an idle made it hard to come off idle smoothly.After breaking the second "stock" throttle pedal, I installed a lokar pedal.It's better,but not perfect.
HEMI-ITIS has no cure. My condition is fully BLOWN!!
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Re: Jets & air bleeds
[Re: Thumperdart]
#2004595
02/03/16 02:33 AM
02/03/16 02:33 AM
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Joined: Dec 2007
Posts: 12,592 Great Neck,LI,new york
hemi-itis
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Last pass the plugs were white with NO speckling,I know if I could have fattened it up there was a few MPH to be had. You can NEVER fatten it up enuff w/38 hi speed bleeds......... I gave it ALL I had,,,,,,99's square
HEMI-ITIS has no cure. My condition is fully BLOWN!!
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