Re: Six-Pac Stroker. Info for Set-Up Needed. Jetting etc:
[Re: Big-Mike]
#113886
09/03/08 11:17 AM
09/03/08 11:17 AM
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Joined: Jul 2006
Posts: 139 MA
limelight440
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I'll have to check my 4 corner jet notes: Don't remember a stagger. dyno'ed 650lb-ft around 3800 tops about 5400 H beam forged Ross Edel heads 1.75 header-> 3" X .5" lift custom cam 700+ rpm idle 493->11" centerforce->Hemi 4 spd->742 8.75 3.55 (Plans on a 3.54 Dana) If you want info let me know, I'd have to get it.
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Re: Six-Pac Stroker. Info for Set-Up Needed. Jetting etc:
[Re: Big-Mike]
#113889
09/03/08 08:49 PM
09/03/08 08:49 PM
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Joined: Mar 2007
Posts: 3,301 West Coast, USA
jbc426
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If you're interested in power a little lower in the rpm range (681hp@5500RPM & 685TQ @ 4500rpm), I'd be happy to share my cam specs with you. Use even a bigger cam the numbers would only go up from there, but at the expense of some low end...
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's 1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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Re: Six-Pac Stroker. Info for Set-Up Needed. Jetting etc:
[Re: Big-Mike]
#113891
09/04/08 06:51 AM
09/04/08 06:51 AM
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Joined: Jul 2006
Posts: 139 MA
limelight440
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I will have to get my notes, I will post tonite. I must correct my self minorly, as I looked at my dyno numbers again: 643lb-ft was @ 4000 548hp was @ 5100 but only hicups 10hp to 5550 This is an excel chart that I made from the dyno print out numbers. Unfortunately the full run was lost but I do have the print out from the out-boards opening (2800ish) on.
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Re: Six-Pac Stroker. Info for Set-Up Needed. Jetting et
[Re: limelight440]
#113892
09/04/08 07:12 AM
09/04/08 07:12 AM
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Anonymous
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Anonymous
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post the jetting if you get a chance.
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Re: Six-Pac Stroker. Info for Set-Up Needed. Jetting etc:
[Re: limelight440]
#113893
09/04/08 04:56 PM
09/04/08 04:56 PM
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Joined: May 2008
Posts: 48 New Zealand
Big-Mike
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Michael; this is so good of You! Thank You so much. I don't know if you received my personal email; i was asking for your cam specs if you have them available. Also; what state are your heads; Std: or some,to major port/bowl work. My email is big-mike@xtra.co.nz if you wish to keep specs quite. Also, anyone who wishes to write direct, this is fine by me. Welcome the chat. Regards, Mike.
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Re: Six-Pac Stroker. Info for Set-Up Needed. Jetting etc:
[Re: Big-Mike]
#113894
09/04/08 07:53 PM
09/04/08 07:53 PM
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Joined: Jul 2006
Posts: 139 MA
limelight440
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2x 62 & 4x 93 Edelbrocks are standars 84cc (no dress work) compression I'm told ended up 10.3:1 although I thought it would have been a little higher. I keep meaning to do a hot crank over. Cam is from Cam Techniques of Sarasota Florida 941 727 5552 int & exh lift are .504 at valve 304deg (240@ .050") 104deg intake centerline installed 4 deg advanced I can give the Cam Techniques Grind Number to order if you want it. Mike: I dont' know what my email is listed as, but rest assure you can find me at chesna.mi@neu.eduMike
Last edited by limelight440; 09/04/08 07:59 PM.
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Re: Six-Pac Stroker. Info for Set-Up Needed. Jetting et
[Re: Big-Mike]
#113896
09/04/08 10:42 PM
09/04/08 10:42 PM
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Anonymous
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Re: Six-Pac Stroker. Info for Set-Up Needed. Jetting et
#113897
09/04/08 11:30 PM
09/04/08 11:30 PM
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Joined: Oct 2003
Posts: 2,537 PORT ALBERNI , BC., CANADA
superwrench
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Quote:
4 93's are stout....
WOW!!! You ain't kiddin!!!
I thought my # 86's were a tad on the heavy side. Maybe he means .093"....or about a 82 jet.
That's a LOT of fuel!!!
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Re: Six-Pac Stroker. Info for Set-Up Needed. Jetting et
[Re: Big-Mike]
#113900
09/04/08 11:50 PM
09/04/08 11:50 PM
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Joined: Jan 2003
Posts: 3,687 South San Francisco, Ca
70sixpkrt
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Quote:
then i took this set-up off & put the 650-D/P with Weiand Xcelerator on & instantly had more pull & more revs as well
I was told that the sixpack manifolds are really restrictive.
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Re: Six-Pac Stroker. Info for Set-Up Needed. Jetting et
[Re: 70sixpkrt]
#113903
09/05/08 03:38 PM
09/05/08 03:38 PM
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Joined: Mar 2007
Posts: 3,301 West Coast, USA
jbc426
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Quote:
I was told that the sixpack manifolds are really restrictive.
It's simply not true. There is room for considerable improvement, and I had mine improved at Hughes Engines getting nearly 700 hp out of my 493" motor with a hydraulic cam!! Thanks to their deep porting work, I have great lowend and some considerable topend performance out of my sixpack. I understand they've gotten even better with them since then!!!
(This from Hughes Engine's Website:
Stock average 302.2 CFM
Stock scatter 272-331 CFM 59 CFM spread
Modified average 332.6 CFM
Modified scatter 306-366 CFM 60 CFM spread STAGE 2 Average 346 CFM (44CFM more than stock) Scatter 315-374 CFM (59CFM spread)
Notes: We work on a lot of Big Block 6-pack intakes. They are probably one of our more popular ones to modify. The #1 and #4 ports are hard to improve much and without them in the mix, the modified average goes from 332.6 CFM to 342.5 CFM and the modified scatter goes from 326 CFM to 366 CFM. These are serious numbers for big block intake manifolds, especially ones that can pass for “stock”. Expect this manifold to get more flow improvement as time passes. We have dynoed a hydraulic cammed 493 cu in with stage 1 version at nearly 700HP."
Yes, there are better manifolds for more top end, but I don't think the sixpack manifolds can be considered restrictive.
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's 1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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