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Re: NEW Predator tool steel shaft rocker
[Re: camastomcat]
#1933804
10/17/15 03:16 PM
10/17/15 03:16 PM
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Joined: Sep 2003
Posts: 1,049
San Jose Ca.
boatracer572
OP
super stock
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OP
super stock
Joined: Sep 2003
Posts: 1,049
San Jose Ca.
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I You guys are running some big stuff in the valve train. I'm just using aluminum rockers with 7/16 double taper pushrods and .937 Crower .180 offset tappets, and as Tony says "smallish cam for a Predator". How much compression are the N/A guys running and how much HP are you expecting to see? Also, what timing are you running? 16.44 to 1 tom as you know, think should be able to make 1270+ hp N/A .expecting total timing to be around 31 degrees , will find out in a month or two on S&S Dyno......
Last edited by boatracer572; 10/17/15 03:19 PM.
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Re: NEW Predator tool steel shaft rocker
[Re: polyspheric]
#1933842
10/17/15 05:26 PM
10/17/15 05:26 PM
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Joined: Nov 2004
Posts: 6,890
North Alabama
Monte_Smith
master
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master
Joined: Nov 2004
Posts: 6,890
North Alabama
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Right - if it looks good, the engineering must be perfect, since (as we all know) all bad designs have rough edges, tool marks, etc. Care to elaborate on anything.............or are you just content to make vague shots from the outfield
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Re: NEW Predator tool steel shaft rocker
[Re: John Burdine]
#1933846
10/17/15 05:31 PM
10/17/15 05:31 PM
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Joined: Nov 2004
Posts: 6,890
North Alabama
Monte_Smith
master
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master
Joined: Nov 2004
Posts: 6,890
North Alabama
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Why does the stiffer rocker on the exhaust side make such a difference? Exhaust side is critical and as stated opens against more pressure. Valvetrain deflection is an issue. Also, you do NOT want a failure on the exhaust side in any motor, but especially a boosted or nitrous motor. With a broken exhaust rocker, the intake keeps piling stuff in the cylinder, but it's not getting out. The NEXT thing to "get out" is usually a rod. As for Cam FX, I run their keyway lifters..............top notch stuff
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Re: NEW Predator tool steel shaft rocker
[Re: EchoSixMike]
#1933932
10/17/15 09:23 PM
10/17/15 09:23 PM
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Joined: Sep 2003
Posts: 1,049
San Jose Ca.
boatracer572
OP
super stock
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OP
super stock
Joined: Sep 2003
Posts: 1,049
San Jose Ca.
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Anyone know if there's any plans to make these for B-1 heads? Or Jesel Tomahawk stuff? S/F.....Ken M I think Chris can make rockers for just about anything! he has 4 cnc machines. If there is a demand (a few sets ) Im sure he would make a run of them.
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Re: NEW Predator tool steel shaft rocker
[Re: Twin Turbo Mower]
#1934479
10/18/15 08:52 PM
10/18/15 08:52 PM
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Joined: Sep 2003
Posts: 1,049
San Jose Ca.
boatracer572
OP
super stock
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OP
super stock
Joined: Sep 2003
Posts: 1,049
San Jose Ca.
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Does the predator heads require offset lifters? No, I do not run offset lifters in mine.....
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Re: NEW Predator tool steel shaft rocker
[Re: boatracer572]
#1934663
10/19/15 02:48 AM
10/19/15 02:48 AM
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Joined: Jan 2003
Posts: 19,361
Las Vegas
Al_Alguire
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 19,361
Las Vegas
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Mine are .937 Jesel keyways. We spread them out as well to get them as straight as we could with the block we had. Also using all left hand offsets. Mine are about a straight as they can get. Required a lot of clearancing to block and heads as well. Still not quite ready but inching closer. Now with the season for the heads up car done things should move a little faster.
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: NEW Predator tool steel shaft rocker
[Re: boatracer572]
#1934888
10/19/15 01:13 PM
10/19/15 01:13 PM
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Joined: Jan 2003
Posts: 19,361
Las Vegas
Al_Alguire
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 19,361
Las Vegas
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Well since everyone is singing his praises I guess someone has to be a little rain. I have found Chris EXTREMELY hard to get ahold of. Don't want to go into to much detail but our experience with them has not been very good. Maybe just bad luck on our part.
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: NEW Predator tool steel shaft rocker
[Re: dthemi]
#1936946
10/22/15 08:28 PM
10/22/15 08:28 PM
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Joined: Sep 2003
Posts: 1,049
San Jose Ca.
boatracer572
OP
super stock
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OP
super stock
Joined: Sep 2003
Posts: 1,049
San Jose Ca.
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I just added to my order with CamFX. Aside from the tool steel rockers and 1 inch tappets, I'm having Chris make a full set of Ti rockers for my next predator build as well. I'll post up some pictures when I see them.
Having a better base plate will be nice as well. There's nothing at all wrong with the T+D, just like everything else in the world. There's always something better.
Chris made Ti rockers for some of the winning PS teams before ti rockers got outlawed for PS by the good ole NHRA.
Monte, if you're reading this could you weigh in on the super A nozzle from nos? My manifold has 2 bungs for 90 degree nozzles in each runner, and I don't really want to re fit to annular. The scoop comes down over the manifold as well, I think making annular even more difficult to fit (I think). I'm looking for the meanest 90 nozzle there is.
Yep, Chris told me about your rockers..... 👍👍👍👍👍
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