roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: Serious Cams
Lobotamy-Nic? Thaaatz jus "silly". You can't believe "everything", in a tell-all-alien, abduction. Can we just focus heere? roverman.
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roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: Serious Cams
Paul, If not, I'm thinkin brazing with map gas or ox/acet. This process will likely anneal the local area,(little heat as possible).Good Luck,roverman.
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roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: Serious Cams
Paul and all, I got 54 lifters so far,(16) soon-to-be mech.I hope their enough. No dog bones as yet. 3.1/3.4L chev. V6- right ? Amusing spyder-Nic?.
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Re: Serious Cams
Art, GM V6 lifters, Chevy V8 dog-bones, Ford 5.0 or two Buick 3.8 90^ spiders. The cam is going to be pure custom.
I'm still waiting for 24 Chevy lifters to be delivered. We need to find something Mopar to use in this gypsy lash-up. Pushrods? Rockers? |
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BlownMGB-V8 Jim Blackwood 9406 Gunpowder Rd., Florence, KY 41042 (6585 posts) Registered: 10/23/2007 12:59PM Main British Car: 1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS |
Re: Serious Cams
You wouldn't do much good quenching the ends, as it'd leave a soft zone in between that and the part that wasn't heated. Really the whole thing would need to be heat treated at once unless you could come up with something really clever. No ideas here though. The Buick V6 spiders sound like the best plan to me.
Jim |
roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: Serious Cams
Paul, Because the motor just would'nt be expensive enough with-out something Mopar in there? How bout a "Ram" wearing a "Bowtie"? Less frustrating, because these two never play-well together.roverman
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roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: Serious Cams
Paul, I thinkin this"melting-pot" theme is a little overcooked at this point, for being half-baked, that is. If you just halft to have Ford in there, go- with- the- flow, and use Henry's crank. An don't forget those Volvo rockers. "Swan Neck" intake would be nice touch.You go too far here and "someone" may rat you out to the (smog natzi's). Not a pleasant thing?
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roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: Serious Cams/bargin lifters
60^ mech. roller lifters on the cheep. This requires making a sleeve of "exact" length between internal step and original push rod cup in lifter. Up-grade to internal circlip. Mech. lifter will be considerable grams lighter. No final weight yet. Rollin on a riv.....roverman.
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roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: Serious Cams/bargains lifters
It's official. oem. lifter weighs 105 grams w.o. oil. "Converted" to mechanical,91 grams, with hd. circlip. So Nic, with carbon fiber push rods,(in-stock), "light weight" cam, carbon fiber wrist pins,(in-stock), 370 gram pistons, 550gram,1k hp.,6" rods, LS 1 firing order. I hear a song...Rollin on a Riv....Happy Hoidays,ya'll roverman.
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v8ian ian stewart just north of London, United Kingdom, Planet Earth (54 posts) Registered: 12/24/2009 04:06PM Main British Car: 67 Ford Cortina 3.9ltr Rover |
Re: Serious Cams
I love the idea of a roller cam in a RV8, my reservation would be can the heads flow the extra volume,, especially with the valves not being on the centerline of the bores making them shrouded by the bore sides, a lower lift, long duration cam would seem to make more sense,, what I do like the idea of it the Beehive springs, has anybody sorted these out to fit a RV8 yet???
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Re: Serious Cams
I'm interested in a roller cam for my 300 project. currently in the parts research and gathering stage. plans call for a 300 shortblock, TA performance Rover heads and a procharger d1sc. looking for big power with street driveability. i'll be watching this thread with much interest
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roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: Serious Cams
Welcome Ian and Rob. Regarding why a roller in a Rover. Net flow under the curve, is what wer'e looking for.The small base circle and small lifter dia. of .842"(sbc.),used in Rovers and sbb's., limits the lift rates to .007" per deg. cam rotation,Max. Thanks to Chevrolet,making low cost, reliable, hyd. rollercam hardare plentiful, ie. lifters, dog bones,and "spyders with mod's". Todays oem roller set-ups provide better power,economy with reduced emissions, while lasting longer with reduced friction, over previous flat tappet designs. Our next hurdle is getting cams made in enough volume to secure good price for custom grinds. Regarding "pine cone" springs, I know of none that woun't require cutting the spring seats. At least "one" takes std Rover retainer dia. Rob, How much hp/boost? You would do well to follow what Jim Blackwood is doing. roverman.
Edited 1 time(s). Last edit at 12/25/2009 04:12PM by roverman. |
v8ian ian stewart just north of London, United Kingdom, Planet Earth (54 posts) Registered: 12/24/2009 04:06PM Main British Car: 67 Ford Cortina 3.9ltr Rover |
Re: Serious Cams
Cutting spring seats is not a problem, im a engineer, but finding the right info over here in the UK for info of "On the Edge" bits and pieces is a big problem, I do like to experiment with oddball combos
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roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: Serious Cams
Ian, If this forum has "anything" ,it's lots of combo's. You may want to "peep" ,Comp Cams webb site for springs, Update, Behive pn. 26918 might be useable..65" id/top and 1.31"od/base, .625 max. lift( enough for most Rovers),lol. If your building a "Nostalgia" motor, you might consider,"394" Olds(circa 1960),pinecone springs., possibly the first, production use of the basic design. When your 3.9L buzzed 8,200 rpm., I'm thinkin, it was, "on the edge"? Good Luck, roverman.
Edited 1 time(s). Last edit at 12/26/2009 01:07PM by roverman. |