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Re: LA hydraulic roller lifter recommendations street/ strip
[Re: RTshaker]
#1969601
12/14/15 06:04 PM
12/14/15 06:04 PM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
master
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master
Joined: Sep 2014
Posts: 4,457
Washington
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Use that cam, put solid rollers on it. Lash at .002 with aluminum heads and .004 with cast iron. Then forget it. I would never use a hydraulic roller lifter again. Then you can block off the oil to the lifters too. BTW, you can use more spring pressure with the solid roller. No need to go berserk, but where I ran 150-160 on the seat I now run 200-210. The springs live forever. Much better IMO.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: LA hydraulic roller lifter recommendations street/ strip
[Re: RTshaker]
#1969610
12/14/15 06:25 PM
12/14/15 06:25 PM
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Joined: Jan 2003
Posts: 8,027 Tulsa OK
Bad340fish
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master
Joined: Jan 2003
Posts: 8,027
Tulsa OK
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I agree, my solid roller setup rarely ever needs adjusted and I put a good amount of street miles on it.
68 Barracuda Formula S 340
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Re: LA hydraulic roller lifter recommendations street/ strip
[Re: RTshaker]
#1969627
12/14/15 06:49 PM
12/14/15 06:49 PM
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Joined: Jan 2003
Posts: 13,363 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,363
Marion, South Carolina [><]
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I have a set of Scorpion hyd. roller lifters for my dad's 540" street hemi project. Dan at Performance Only (RIP) recommended them and said he used a lot of them in street/strip builds successfully. I have not built the engine, so I don't have any results yet.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: LA hydraulic roller lifter recommendations street/ strip
[Re: an8sec70cuda]
#1969799
12/14/15 11:15 PM
12/14/15 11:15 PM
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Joined: Dec 2010
Posts: 85 New Brunswick Canada
copperSwinger
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member
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Posts: 85
New Brunswick Canada
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MadS Can you explain why you don`t like hyd rollers .{ My father was asking the original question on my behalf }I have a set of howard solid rollers and solid howard cam presently ..Bought as a newly built 408 with only break in time. The cam was too large for my needs and had a 106 LS. Upon taking the engine apart we decided to bush lifter bores and go to a smaller 110 LS cam . Machinist is trying to convince me to go to hydraulic roller cam and lifters due to perceived issues with oiling the soild lifters and adjusting . The Howard rollers are the sportsman budget racer, they sell another they call street type ? Advise please
Last edited by copperSwinger; 12/14/15 11:39 PM.
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Re: LA hydraulic roller lifter recommendations street/ strip
[Re: RTshaker]
#1969817
12/14/15 11:38 PM
12/14/15 11:38 PM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
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master
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Posts: 4,457
Washington
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Because they are too limited. You can use a solid roller lifter on a hydraulic lifer cam profile and get much more performance. Just lash them where I posted earlier and drive it.
I was big on the HRT a long time ago. You can't use much spring pressure. Most guys don't run near enough oil pressure for HRT's.
I don't get why oiling the lifters is an issue. Solid rollers splash lube. You can plug the oil off to the lifters and stop the leaks.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: LA hydraulic roller lifter recommendations street/ strip
[Re: dvw]
#1970249
12/15/15 04:57 PM
12/15/15 04:57 PM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
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master
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Posts: 4,457
Washington
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How about needle bearing life? Is the hyd roller cam clearance ramps that much softer. Or is it the fact the lash is so tight?
Doug I'd have to call my cam guy about the ramp deal. Been doing it so long I no longer remember the descussion we had when he convinced me to do it (I was bitching because we were RPM limited with HRT's). I do know that the tight lash helps. I'm old enough to remember when EVERYBODY who was ANYBODY used "rev kits" on their chevies. Back in the very early 80's (probably 1980) I saw my first roller on the street. Guy was slinging (I'll let you figure that out) so he had big cash (and he was alledgedly doing other stuff too). I had seen him break a couple of engines on the street and we ended up at the same shop. He was breaking roller lifters. The rev kit stopped it. I figured it was added spring pressure but it was the fact the roller never left contact with the cam. The roller didn't skid up to speed and all that. So the tight lash helps.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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