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Re: 383man
[Re: roadrunnerreds]
#696753
05/14/10 09:50 PM
05/14/10 09:50 PM
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Joined: Jul 2004
Posts: 19,318
State of confusion
Thumperdart
I Live Here
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I Live Here
Joined: Jul 2004
Posts: 19,318
State of confusion
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In my big block I tried notched lifters and had low oil pressure then went to solid body type and solved it. My block is not bushed.
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: 383man
[Re: 383man]
#696754
05/14/10 11:16 PM
05/14/10 11:16 PM
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Joined: Jan 2003
Posts: 17,892
S.E. Michigan
ZIPPY
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 17,892
S.E. Michigan
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Quote:
Quote:
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Ron,
Ive talked to Dwayne at length about this on a couple occasions.
He says the -5 Comp lobes are very very reliable in a real street driven application.
And Dwayne is right.
I got my -5 grind from PRH and it has been very good.
The first design street rollers are nice grinds too, though, and worth checking out if a guy wants to buy a shelf grind.
I was going to go with the older 308 street roller until Dwayne picked out a -5 for me instead. At the time our feeling was the -5 would pick up some power without hurting reliability/longevity enough to notice.
Zippy can I ask you the cam specs on that cam and the spring pressure you run with it ??? Thanks , Ron
N/P Ron. It is .631 gross lift, 262/266 @ .050 on 110.
I usually just call it a 630 roller....
Spring pressure is 200 seat and roughly 500 open.
If the budget allows (careful shopping helps a whole lot)...a roller is well worth looking into.
I considered a roller for years before taking the plunge, and had 1,000 questions and concerns that a couple friends of mine + Dwayne cleared up for me in a hurry. No regrets at all, still very glad I did it, and I don't ever want to put another motor together with a flat tappet cam EVER!! (though I already have, for lower HP/lower budget stuff...oh well)
Anyway if you're in the same boat I was, send me a PM anytime if I can clear anything up bud.
Rich H.
Esse Quam Videri
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Re: 383man
[Re: roadrunnerreds]
#696755
05/15/10 12:55 AM
05/15/10 12:55 AM
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Joined: Jan 2008
Posts: 795
Glendale Az
Darryls-Demon
super stock
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super stock
Joined: Jan 2008
Posts: 795
Glendale Az
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Quote:
No she is in Pa.my dad`s family are car guys but ford`s and chevy`s. my dad owned a few mopars but never long. I wanted to be different and took alot of ribbing for running a mopar. i have thought about a roller cam for a street strip car small block. i thought that unless you get solid body lifters you had to bush lifter bores. Bradley
My next project is a 408 small block with W2 heads for my 69 Dart that I drive every day to work in the the winter(no A/C so it is my winter beater)and I would like to put a solid roller in it but Iam not sure it would be a good idea for a driver. Sure do like the roller in my Challenger.
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Re: Street roller cams
[Re: 383man]
#696756
05/15/10 07:47 AM
05/15/10 07:47 AM
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Joined: Nov 2003
Posts: 2,715
closer to Canadian beer!
torkrules
I'm neurotic
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I'm neurotic
Joined: Nov 2003
Posts: 2,715
closer to Canadian beer!
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Quote:
Just curious if any of the people who run rollers in street cars use the street roller cams that use less spring pressure then race rollers ?? Thinking about using a roller in my next eng for my 63 but I do drive it alot on the street. Ron
FWIW I had Lunati do a street roller grind for me for a Hemi. It's a very mild 242@50, .590 lift with 110 lobe sepearation. The trick is to have gentler ramps on the lobes. I ran comp rollers and Isky gold tool room springs that have 190 on the seat and 450 open.
We ran it on the dyno up to 6500rpm with no float issues. It was still making power at 6500 (we just chickened out)
One of the better decisions I've made. You can barely hear the valve train and it idles smooth at 950rpm. And you don't need any lotions and potions for the cam, no break in.......
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