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stroker Sb ... jet size holley 850
#1059430
08/22/11 02:18 PM
08/22/11 02:18 PM
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Joined: Jun 2004
Posts: 334 Wi.
65_gt_rag_402
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OP
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Say ... what size are you guys running on your stroker sb's . mine is a stroker crate 402 with 850 holley, choke tower cut off and bowl blended . pv's 45's , squirters 37 frt.& rear. 50 cc pumps , jet frt 80 rear jet 82 . big electric pump with 1/2" lines and fuel cell .msd 6al. dart runs 11.0's on motor 60 ft 1.50 . seems to run out of fuel on big end.. 6 pack sealed hood scoop.. maybe more jet for all that fresh forced air ? what do you all think. Thanks !
65 DART GT RAGTOP mopars "AWESOME" 360 magnum stoker 402 Engine !!!!!!! ROCKS !!!!!!!!!!
11.0's on pump gas .
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Re: stroker Sb ... jet size holley 850
[Re: 65_gt_rag_402]
#1059431
08/22/11 03:14 PM
08/22/11 03:14 PM
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Joined: Jan 2003
Posts: 1,365 elmira ny
hp340nos
pro stock
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pro stock
Joined: Jan 2003
Posts: 1,365
elmira ny
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i run a aed 850 carb on my pump gas 418 stroker in a 3400#,88 dakota p/u,jet size are 79 front 88 rear,35f/37r squirters,pv=4.5.i just ran a 7.37 at 94 in(1/8 mile) over the weekend in the heat,im still tuning on it.i drive this truck to the track 40 minutes one way.mallory 140 pump with -8 line to the regulator,then 2 split -6 to the bowls of the carb.it seems to have plenty of fuel.mike
Last edited by hp340nos; 08/22/11 03:25 PM.
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Re: stroker Sb ... jet size holley 850
[Re: hp340nos]
#1059432
08/22/11 08:52 PM
08/22/11 08:52 PM
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Joined: Jun 2004
Posts: 334 Wi.
65_gt_rag_402
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Thanks Mike ! That's rockin ! Appears I'm alittle lean on fuel ... Hope to see a few more opinions . I never did jet up when the scoop was installed. what the theory that you should always keep the jet sizes close in number. to keep an even distribution of fuel in the cylinders. I see you run a big stagger in jet sizes.
65 DART GT RAGTOP mopars "AWESOME" 360 magnum stoker 402 Engine !!!!!!! ROCKS !!!!!!!!!!
11.0's on pump gas .
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Re: stroker Sb ... jet size holley 850
[Re: 65_gt_rag_402]
#1059433
08/22/11 09:03 PM
08/22/11 09:03 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
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Posts: 52,972
Romeo MI
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Quote:
Thanks Mike ! That's rockin ! Appears I'm alittle lean on fuel ... Hope to see a few more opinions . I never did jet up when the scoop was installed. what the theory that you should always keep the jet sizes close in number. to keep an even distribution of fuel in the cylinders. I see you run a big stagger in jet sizes.
Since you are running a PV you need about 8 jet sizes difference between the PV side to the other ... square jetting is for NON PV applications
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Re: stroker Sb ... jet size holley 850
[Re: MR_P_BODY]
#1059434
08/22/11 09:31 PM
08/22/11 09:31 PM
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Joined: Jan 2003
Posts: 20,927 A collage of whims
topside
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 20,927
A collage of whims
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What do the spark plugs "say"? What's your fuel pressure doing? My 368" SB racecar (Duster) 850DP is 88 square, no PVs, .130 needles/seats, don't recall which shooters or pump cams off the top of my head. Milled choke horn, "6-pack" scoop. Footbrake car, 6000 stall, 904, 5.38s, 13x31 tire, stages @ 1600-2000 and hammered from there. Don't knw if any of that matches your combo. Maybe you don't have enough fuel pump?
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Re: stroker Sb ... jet size holley 850
[Re: MR_P_BODY]
#1059435
08/23/11 03:22 PM
08/23/11 03:22 PM
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Joined: Jun 2004
Posts: 334 Wi.
65_gt_rag_402
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So mr P ,, you are saying I should be running eg. 80 frt jet and 88 rear jet size with pv's with that being 8 jet sizes apart ? why then are the stock jets like 80 and 81 ? i'm confused . I heard of to jet up 8 sizes if don't use pv's .
65 DART GT RAGTOP mopars "AWESOME" 360 magnum stoker 402 Engine !!!!!!! ROCKS !!!!!!!!!!
11.0's on pump gas .
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Re: stroker Sb ... jet size holley 850
[Re: topside]
#1059436
08/23/11 03:31 PM
08/23/11 03:31 PM
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Joined: Jun 2004
Posts: 334 Wi.
65_gt_rag_402
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Fuel pressure is just under 7#'s with a 130gph electric..plugs look ... white and clean porclean , grey soot on first thread . strap color on bend . 34* total timing , 19* initial.msd 6al
65 DART GT RAGTOP mopars "AWESOME" 360 magnum stoker 402 Engine !!!!!!! ROCKS !!!!!!!!!!
11.0's on pump gas .
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Re: stroker Sb ... jet size holley 850
[Re: 65_gt_rag_402]
#1059437
08/23/11 03:31 PM
08/23/11 03:31 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
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Posts: 52,972
Romeo MI
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Quote:
So mr P ,, you are saying I should be running eg. 80 frt jet and 88 rear jet size with pv's with that being 8 jet sizes apart ? why then are the stock jets like 80 and 81 ? i'm confused . I heard of to jet up 8 sizes if don't use pv's .
Are you running a PV both front and back? You can check the Holley web site for the stock jetting if you know the model number
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Re: stroker Sb ... jet size holley 850
[Re: MR_P_BODY]
#1059438
08/23/11 03:37 PM
08/23/11 03:37 PM
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Joined: Jun 2004
Posts: 334 Wi.
65_gt_rag_402
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mr. p . I think you misunderstood what I said on my pv's . I have pv's in the pri and sec. if that's the case I should still jet up the rear somemore to maybe 84-88. what do you think ?
65 DART GT RAGTOP mopars "AWESOME" 360 magnum stoker 402 Engine !!!!!!! ROCKS !!!!!!!!!!
11.0's on pump gas .
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Re: stroker Sb ... jet size holley 850
[Re: MR_P_BODY]
#1059439
08/23/11 03:41 PM
08/23/11 03:41 PM
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Joined: Jun 2004
Posts: 334 Wi.
65_gt_rag_402
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Yes ... pv's #45's in both frt. and rear. i'm running 80 jet frt and 82rear jet now .
65 DART GT RAGTOP mopars "AWESOME" 360 magnum stoker 402 Engine !!!!!!! ROCKS !!!!!!!!!!
11.0's on pump gas .
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Re: stroker Sb ... jet size holley 850
[Re: 65_gt_rag_402]
#1059441
08/23/11 06:30 PM
08/23/11 06:30 PM
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Joined: Oct 2003
Posts: 7,506 Az
Crizila
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Az
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I'm running 79 frt and 89 rr ( front only 4.5 PV )in my 850 / 408 motor. Plugs always color good with mid way ground strap demarcation. You might want to consider dumping the sec side PV and just jetting up. It could make life easier.
Fastest 300
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Re: stroker Sb ... jet size holley 850
[Re: emarine01]
#1059443
08/24/11 01:57 PM
08/24/11 01:57 PM
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Joined: Jun 2004
Posts: 334 Wi.
65_gt_rag_402
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Yes .... It's has a roll bar in it. chromoly
Last edited by 65_gt_rag_402; 08/26/11 02:07 PM.
65 DART GT RAGTOP mopars "AWESOME" 360 magnum stoker 402 Engine !!!!!!! ROCKS !!!!!!!!!!
11.0's on pump gas .
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