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by CamKing
Sat Sep 26, 2020 1:14 pm
Forum: Jones Cam Designs
Topic: PennGrade1 High Performance oils
Replies: 1
Views: 44

Re: PennGrade1 High Performance oils

Here's our pricing for all Speed-Talk members PennGrade1 Break-in oil, SAE 30: $9.00-qt / $96.00-case PennGrade1 High Performance monograde oils: $8.00-qt / $86.00-case PennGrade1 Partial Synthetic High Performance oils: $9.00-qt / $96.00-case PennGrade1 Engine Assembly Lubricant: $15.00-6oz bottle ...
by CamKing
Fri Sep 25, 2020 12:23 pm
Forum: Jones Cam Designs
Topic: PennGrade1 High Performance oils
Replies: 1
Views: 44

PennGrade1 High Performance oils

We are now an authorized dealer for PennGrade1, and all D-A Lubricants. We recommend, PennGrade1 engine assembly lube for all performance cam installations. We highly recommend PennGrade1 30w Break-in oil, for all breaking in flat tappet and overhead cams. We highly recommend PennGrade1 Monograde Hi...
by CamKing
Tue Sep 15, 2020 3:03 pm
Forum: Race Cars & Parts - For Sale or Wanted
Topic: WTB, Roller cams
Replies: 2
Views: 175

WTB, Roller cams

Looking for new roller cams for:
360 Chrysler - need something with .370"-.425" Lobe Lift, on a 110-114 LSA
460 BB Ford - need something with .350"-.400" Lobe Lift, on a 112-116 LSA
by CamKing
Sun Sep 13, 2020 2:06 pm
Forum: Jones Cam Designs
Topic: Special on 4/7 Swap, SB Chevy flat tappet cams
Replies: 0
Views: 58

Special on 4/7 Swap, SB Chevy flat tappet cams

We have an overstock in 4/7 swap flat tappet cores for SB Chevy engines. Both Hydraulic and Mechanical For a limited time, we are offering the 4/7 swap upgrade at no additional cost. To receive a cam recommendation, and price quote, just fill out the appropriate cam recommendation form. Make sure to...
by CamKing
Sun Sep 13, 2020 12:15 pm
Forum: Engine Tech
Topic: Welded Camshafts for regrinding
Replies: 36
Views: 1722

Re: Welded Camshafts for regrinding

Seems that the gears could possibly be transferred to a new semi finished blank if needed. https://live.staticflickr.com/65535/50331821918_ab1fb5de36_b.jpg That would be the thing to do. Pull gears off all the old stock cams you can find. Have tool steel cam cores made, and press the gears onto them.
by CamKing
Thu Sep 10, 2020 1:06 pm
Forum: Jones Cam Designs
Topic: PRI Trade Show update
Replies: 0
Views: 44

PRI Trade Show update

For the first time since 1990, Jones Cam Designs will not be exhibiting at the Annual PRI Trade Show this December. Due to the Covid19 safety protocols that will be put in place, we don't feel we can adequately showcase our products and services. We look forward to seeing everyone at the 2021 PRI tr...
by CamKing
Thu Sep 10, 2020 11:32 am
Forum: Engine Tech
Topic: Cam lobe decel ramp - valve life?
Replies: 32
Views: 1373

Re: Cam lobe decel ramp - valve life?

Yes, that looks like it will be hard on the valvetrain.
To me, it really looks like the lobe was originally designed for hydraulic buckets.
by CamKing
Thu Sep 10, 2020 11:01 am
Forum: Engine Tech
Topic: Cam lobe decel ramp - valve life?
Replies: 32
Views: 1373

Re: Cam lobe decel ramp - valve life?

Nut124 wrote: Thu Sep 10, 2020 9:26 am Mike, just to confirm: The 0.0008/deg maximum is based on crank degrees, not cam degrees, right?
No, it's cam degrees.
sorry I didn't clarify that.
.0008" per cam degree
by CamKing
Wed Sep 09, 2020 12:16 pm
Forum: Engine Tech
Topic: Cam lobe decel ramp - valve life?
Replies: 32
Views: 1373

Re: Cam lobe decel ramp - valve life?

Stan Weiss wrote: Wed Sep 09, 2020 11:49 am Mike,
Do you ever look at valve seating velocity in fps @ shift point RPM?
Yes, I calculate the velocity at the lash point in fpm, based on lobe velocity at lash point, rocker ratio, and max RPM.
by CamKing
Wed Sep 09, 2020 10:31 am
Forum: Engine Tech
Topic: Cam lobe decel ramp - valve life?
Replies: 32
Views: 1373

Re: Cam lobe decel ramp - valve life?

Nut124 wrote: Tue Sep 08, 2020 3:28 pm
What kind of max velocity limits are being recommended for valve seating?
You want the velocity at the lash point to be under .0008" per degree. If it's over .001", I would worry.
by CamKing
Mon Sep 07, 2020 3:23 pm
Forum: Engine Tech
Topic: Cam lobe decel ramp - valve life?
Replies: 32
Views: 1373

Re: Cam lobe decel ramp - valve life?

go to .010"-.012"
That's a big enough jump, for you to tell the difference.
by CamKing
Mon Sep 07, 2020 3:02 pm
Forum: Engine Tech
Topic: Welded Camshafts for regrinding
Replies: 36
Views: 1722

Re: Welded Camshafts for regrinding

I have found about 8 people so far that may be interested in a new blank so far. I have done parts runs before it takes a little while to get the word out and people interested as the market is small. In January we had 55 adjustable timing gears made that turned out really nice. One person brought ...
by CamKing
Mon Sep 07, 2020 2:15 pm
Forum: Engine Tech
Topic: 351W Cam in 289
Replies: 17
Views: 764

Re: 351W Cam in 289

as a reference, for 6,000rpm, in a 289, you would only need a seat duration around 260/268
by CamKing
Mon Sep 07, 2020 2:12 pm
Forum: Engine Tech
Topic: 351W Cam in 289
Replies: 17
Views: 764

Re: 351W Cam in 289

The 283/304 seat duration is going to effect the RPM range the cam will run in, in a given engine. The smaller the engine, the higher the RPM range, for a given seat duration. You're taking a cam that makes peak power at about 5,500 in a 351ci engine, and putting it in an engine that's 82% as big, s...
by CamKing
Mon Sep 07, 2020 1:08 pm
Forum: Engine Tech
Topic: 351W Cam in 289
Replies: 17
Views: 764

Re: 351W Cam in 289

It's the seat duration you need to look at. With the short stroke of a 289, you could run 11:1+ with that cam. Detonation won't be an issue.
It won't start pulling until 4,000rpm, but should pull to 7,000rpm