|
manifold
what single plane manifold should i use on my 347,vic jnr or funnel web?? or any other sugestions? currently running quad 44 idf webers(im looking for more top end hp)
|
Weiand Excelerator
|
Need more info to make any worthwhile recomendations for your combo.
|
347,10.2 comp,windsor snr alluminium ,intake flow 275 @.500,298@.600,309@.700, 4.1 diff, tremmec 3550, its in a 68 mustang,comp cam solid 560lift,248@ .050,110 lobes,quad 44 mm idf webers,1 3/4 headers 4 into 1,what else would you like to know?
|
|
If the Vic Jr will fit under the hood, that's the one I would run.
|
I believe I would run an Edelbrock Performer RPM intake.
|
I'd use the victor jr. but you will also have to go with a dropped base air cleaner. I use the one from Moroso. Fact is, you'll probably have to use a dropped base with any high rise intake.
h dog |
The Weiand eXcellerator is like a low-rise version of the Victor. It fits very well under a Cobra hood. Its very similar the the Victor, but made to run to about 6,500rpm at peak HP. The Victor is a true race manifold and is made to run to 8,000-8,500rpm.
Ed |
The Victor Jr is all done at 7000 to 7500 rpm on a 347 with flow #s like yours. If you don't already have them and if you have the valve to piston clearance I would go with a 1.7 rocker arm for some more lift or step up a bit on the cam and bring the lobes closer together. If you are planning to rev over 7500 rpm go with the Super Victor or the Funnel Web.
JMO, --Mike |
what cam should i step up to??
|
How high do you want to rev your motor?
Do you have a forged or cast crank? Which rods? Block mods? Are you willing to pull the heads? To rev over 7000 effectively I would recomend a mechanical flat tappet or mechanical roller cam. If you don't want to rev past 6500 the cam you have is fine and you could get a little more lift by changing rockers to 1.7s. You could end up spending more money than you excpected, though. Think about the real world expectations you want, then we can pick out a cam. --Mike |
i only have a scat cast steel crank,i was told they are good for 7500rpm(so 7500 would be my limit) but i dont know how true it is,i have scat h beams, what do you mean by block mods?why do you ask if i would be willing to pull the heads?
|
last article in hot rod engines. showed the new Eldelbrock AIR gap beat every setup and it didnt matter if it was big cam or little cam . you should check it out. winter 2002 issue.
|
1 Attachment(s)
347,
I only mentioned pulling the heads if you wanted to go to a bigger cam. You would need new (stiffer) valve springs or if you wanted a roller cam the heads need to be removed to get the lifters in. Block mods would be things like a main cap support (girdle), studs, or aftermarket main caps, etc. For the rpm you intend to run (7000 to 7500) the cam you have should work fine. A cam with 252 to 255 deg intake/exh with about .575" to .590" lift on a 108 to 110 lobe center installed at 104 to 106 deg would really make it a top end screamer without sacrificing too much low and midreange power. It would effect daily driving type usablity though. I would try the manifold and carb first then decide if you still want more go go. The Victor Jr or the newer Performer RPM air-gap that mkcobra mentioned would work well. I recently installed a RPM air-gap on a 351w and it ran like gangbusters. Great manifold. Good luck with your project, --Mike PS or, you could do this!:D :D :D |
is there two versions of the rpm air gap?
|
| All times are GMT -7. The time now is 09:54 PM. |
Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
The representations expressed are the representations and opinions of the clubcobra.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Shelby American, any other replica manufacturer, Ford Motor Company. This website has been planned and developed by clubcobra.com and its forum members and should not be construed as being endorsed by Ford Motor Company, or Shelby American or any other manufacturer unless expressly noted by that entity. "Cobra" and the Cobra logo are registered trademarks for Ford Motor Co., Inc. clubcobra.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting clubcobra.com. For full policy documentation refer to the following link: