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Old 06-12-04, 06:27PM   #1
Gach
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Default Roller bearing cam retaining plate

[i]I have started to make roller bearing cam plates for pontiac engines to replace the stock stamped cam retaining plate. I make the plate from tool steel and modify the cam gear to accept the new setup. I am selling a new 3pc. timing set from rollmaster modified for the bearings and thicker plate, bearings and races, cam plate, 12 pt. grade 8 bolts and alignment tool to center the plate on the cam center line, all for $215. The kit requires no modifications to the cam or block. It also allows the use of the stock fuel pump encentric. If interested ... feel free to E-Mail meThanks....
Scott

Scott Sims
Sims Performance Machining
19370E. 400S.
Elizabehthtown, Indiana
47232
Ph/fax 812-579-9815
simsb52@qmix.net
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Old 06-12-04, 06:29PM   #2
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Default Pictures

http://www.74gto.net/PY/camplatepackage.jpg
http://www.74gto.net/PY/camplatepackage2.jpg

Scott Sims
Sims Performance Machining
Where Precision and Innovation Meet!

Address:
19370E. 400S.
Elizabethtown, Indiana
47232
Ph/Fax 812-579-9815
Email @ simsb52@qmix.net

Thanks for the interest!!!

Scott
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Old 06-12-04, 06:35PM   #3
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Default Good News

I just got back from the Dyno. I had the opportunity to test the roller bearing cam plate. We dyno tested @ Williams Precision Engines in St. Paul Indiana. Here is the final results and I'll give the details tomorrow....

2 pulls back to back with a new stock retainer.
torque....457.58 avg.
HP...434.20 avg.

2 pulls back to back with my roller bearing cam plate....
torque....467.05 avg.
HP...443.01 avg.

There was nothing else changed but the cam retaining plate!

Oh...I have pictures of major scuffing of the new stock plate


I am happy
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Old 07-29-04, 12:16PM   #4
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I used one in the short deck V motor,real nice product.Tom
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Old 07-11-05, 03:02AM   #5
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Just thought I'd bring this back to the top, everyone that's bought
have nothing but great reviews, and to me a 10 HP gain says their
really worth the money. Always like to see new products of high quality.
So lets make this a sticky one.
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Old 07-11-05, 01:41PM   #6
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so how does your innovation compare to the newest Rollmaster set,that has Exclusive Step Designed Bronze Bushing
Frees up Horsepower & Reduces Wear Normally Lost to Friction at Cam Plate?
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Old 07-11-05, 01:52PM   #7
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Quote:
Originally Posted by HARRY
so how does your innovation compare to the newest Rollmaster set,that has Exclusive Step Designed Bronze Bushing
Frees up Horsepower & Reduces Wear Normally Lost to Friction at Cam Plate?
Send him an Email @ simsb52@qmix.net
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Old 07-11-05, 03:25PM   #8
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Thank you Gach for providing Pontiac Zone users with this great service. Sharing great Pontiac Aftermarket products this our users is what we are about.
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Old 07-12-05, 03:47PM   #9
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Harry, I have not seen the new rollmaster set up as you described.
But unless you have a bushing on both sides of the cam plate
( I have bearings on both sides) I cant see having a bronze
bushing on the outside (between the camplate and sprocket)
will do any good. At wide open throttle the cam wants to
push out the front of the engine. On any cam plate...If you
look at which side of the plate is worn...its the block
side....which means the cam is pushing out wards.
As far as dyno results on the bronze bushing....Have you
seen the results posted somewhere? I can give you a copy of
my results if you like!



Thanks for the interest...

Scott Sims
Sims Performance Machining
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Old 07-12-05, 04:26PM   #10
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Scott,I DO need the centering tool,I must not have got mine back from Ken when he did the motor.Tom
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Old 07-12-05, 07:44PM   #11
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I wonder if there's one going in the the Hot Rod motor, I'll have
to asked Andy, I'm sure Harpoon would defiantly want one. I'll
be ordering one very soon. Running a roller cam myself for
a few years I've replace the cam plate a few times. Plus the
10 HP gain for $210.00 bucks, just doesn't get any better then
that. Hell you have to by a timing gear and chain set any way.
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Old 07-22-05, 12:57AM   #12
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Recently installed the Sims billet rollerized cam plate. Found that my factory cam plate wasn't wearing evenly. It was new when installed 85 passes ago. Note the un-even wear pattern. Put it on a piece of glass to see if it was flat. It wasn't...... It is bowed out. Bolts were found tight.

First thing I noticed was how steady the timing marks were after installation. Rev'd up to 3500 and it was rock steady. The timing mark "floated" around a little with the stock plate. More consistent/steady timing is probably one factor in the HP/Torque improvements.

Ron
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Old 07-22-05, 01:29AM   #13
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WOW! that baby was hitting pretty good. has to rob horse power for sure,
I know one is in my plans for sure.
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Old 08-09-05, 01:41PM   #14
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Copied from another post....thanks...Scott

Pitch 400
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--------------------------------------------------------------------------------

Just recieved my timing gear bearing kit from Scott Sims. Very nice set-up to locate cam position. 7 day turn around time too. His E-mail address is simsb@qmix.net.
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Old 08-09-05, 09:40PM   #15
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Scott, Check out PZ home page.
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