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Search: Posts Made By: camgrinder
Forum: 911 Engine Rebuilding Forum 07-17-2017, 03:11 PM
Replies: 12
Views: 1,144
Posted By camgrinder
These were a custom ground set. He has the...

These were a custom ground set. He has the setting now.
Forum: 911 Engine Rebuilding Forum 08-26-2016, 02:43 PM
Replies: 6
Views: 601
Posted By camgrinder
Camshafts and compression ratio should be...

Camshafts and compression ratio should be matched. Along with carburetor sizes. for example, the DC60 works with 46mm carbs and 10.5-1 compression. The old 3.0 RSR cam might make the same peak...
Forum: 911 Engine Rebuilding Forum 06-20-2016, 02:45 PM
Replies: 2
Views: 307
Posted By camgrinder
Its an Elgin. low lift deal (.400" range) you...

Its an Elgin. low lift deal (.400" range) you would probably be better with an SC profile
Forum: 911 Engine Rebuilding Forum 05-27-2016, 10:05 AM
Replies: 23
Views: 2,956
Posted By camgrinder
Yes it is a welded cam. Date code 4.93 is April...

Yes it is a welded cam. Date code 4.93 is April 1993. Pretty sure it was done for Andial
Forum: 911 Engine Rebuilding Forum 04-14-2016, 05:39 PM
Replies: 12
Views: 2,348
Posted By camgrinder
All depends on the powerband you want. They will...

All depends on the powerband you want. They will work with 8.5-1, but you will down on power before peak torque. In other words with the 9.5-1 slugs the engine will come on the cam sooner vs....
Forum: 911 Engine Rebuilding Forum 04-14-2016, 05:32 PM
Replies: 32
Views: 1,948
Posted By camgrinder
I tape off the bearing journals before I...

I tape off the bearing journals before I parkerize camshafts. I don't recommend coating the journals.
Sounds like this one either has a knick in a journal or is bent. Easy to fix.
Forum: 911 Engine Rebuilding Forum 03-06-2016, 12:04 PM
Replies: 17
Views: 1,277
Posted By camgrinder
Go back without lash and do the math based on...

Go back without lash and do the math based on .012", .040", .050" and .300" valve lift. See what the lobe center line is.
Forum: 911 Engine Rebuilding Forum 03-04-2016, 03:43 PM
Replies: 17
Views: 1,277
Posted By camgrinder
Some new profiles listed too! SmileWavy

Some new profiles listed too! SmileWavy
Forum: 911 Engine Rebuilding Forum 03-04-2016, 03:41 PM
Replies: 17
Views: 1,277
Posted By camgrinder
GT2 at TDC with a 108 degree intake centerline =...

GT2 at TDC with a 108 degree intake centerline = 3.34 mm
advanced to 106 = 3.61 mm
retarded to 110 = 3.09 mm
factory cams ground on 112 LSA are typically installed at 2.5 mm which is a 114 ICL .
Forum: 911 Engine Rebuilding Forum 10-01-2015, 10:56 AM
Replies: 39
Views: 4,537
Posted By camgrinder
I agree on playing it safe at 9.5-1. Never know...

I agree on playing it safe at 9.5-1. Never know what you really get for octane at the pump.
Forum: 911 Engine Rebuilding Forum 10-01-2015, 10:53 AM
Replies: 39
Views: 4,537
Posted By camgrinder
Sure looks like the wrong stickers on both of...

Sure looks like the wrong stickers on both of those. John's for sure after looking up the build specs (old emails). I don't have any info other than the invoice on yours TT.
Forum: 911 Engine Rebuilding Forum 09-30-2015, 04:39 PM
Replies: 39
Views: 4,537
Posted By camgrinder
Good deal. I wonder why we put the 1.8mm sticker...

Good deal. I wonder why we put the 1.8mm sticker on it. Any chance you have the original invoice number?
Forum: 911 Engine Rebuilding Forum 09-30-2015, 11:05 AM
Replies: 8
Views: 805
Posted By camgrinder
Seen that a couple of times back in the early...

Seen that a couple of times back in the early 90's. one bank 92 degrees, the other 108.
Forum: 911 Engine Rebuilding Forum 09-30-2015, 10:08 AM
Replies: 39
Views: 4,537
Posted By camgrinder
Since you are going single plug (and I assume...

Since you are going single plug (and I assume less compression) I would go with the 993-SS.
993-SS is a little smaller than the DC21. Same intake profile with 4 degrees less exhaust profile. ...
Forum: 911 Engine Rebuilding Forum 09-30-2015, 09:59 AM
Replies: 8
Views: 805
Posted By camgrinder
Exhaust lobe is mild compared to an RSR type cam....

Exhaust lobe is mild compared to an RSR type cam. strange that it would be so close. You would think the JE piston would be set up for RSR type lift at overlap.
Forum: 911 Engine Rebuilding Forum 09-30-2015, 09:53 AM
Replies: 39
Views: 4,537
Posted By camgrinder
I always send the 964 cams out with a sticker...

I always send the 964 cams out with a sticker showing 1.26mm.
I have told customers 1.4mm, 1.6mm and even 1.8mm. All depends on what they are looking for and the combination. 1.26mm puts the...
Forum: 911 Engine Rebuilding Forum 09-24-2015, 08:41 AM
Replies: 5
Views: 582
Posted By camgrinder
4.40 mm puts the factory S profile in 4 degrees...

4.40 mm puts the factory S profile in 4 degrees retarded. 102 degree intake centerline. I would move them back to 5.0mm (98 degree) if it was mine.

I understand the idea of increasing top end...
Forum: 911 Engine Rebuilding Forum 09-24-2015, 08:27 AM
Replies: 8
Views: 805
Posted By camgrinder
1.5mm intake and 2.0mm exhaust is what I like to...

1.5mm intake and 2.0mm exhaust is what I like to see.

I have had customers run as tight as .65mm on the intake and .8mm on the exhaust. You may get some contact at this number. The valve...
Forum: 911 Engine Rebuilding Forum 09-08-2015, 06:05 PM
Replies: 4
Views: 512
Posted By camgrinder
Replied. :)

Replied. :)
Forum: 911 Engine Rebuilding Forum 09-08-2015, 01:19 PM
Replies: 4
Views: 512
Posted By camgrinder
If you can take some measurements, (2.7 cams base...

If you can take some measurements, (2.7 cams base circle diameter should be 1.230" +/- .010" and the T cams 1.160" +/- .010") list the casting numbers and the letters on the nose of the cams, I can...
Forum: 911 Engine Rebuilding Forum 08-19-2015, 10:32 AM
Replies: 9
Views: 1,600
Posted By camgrinder
This is a good point. Each profile uses up a...

This is a good point. Each profile uses up a different area on the rocker face. If you compare the rubbing pad on an intake and exhaust rocker you will see this.
An upgrade profile like the 964...
Forum: 911 Engine Rebuilding Forum 08-19-2015, 10:08 AM
Replies: 7
Views: 803
Posted By camgrinder
Way too low. :(

Way too low. :(
Forum: 911 Engine Rebuilding Forum 08-19-2015, 10:04 AM
Replies: 9
Views: 731
Posted By camgrinder
You are slightly retarding the cam at 1.6mm ...

You are slightly retarding the cam at 1.6mm move the power band up. Doubt the butt dyno would notice the change.
Forum: 911 Engine Rebuilding Forum 08-19-2015, 09:57 AM
Replies: 10
Views: 620
Posted By camgrinder
Any chance you want to sell the right side cam?

Any chance you want to sell the right side cam?
Forum: 911 / 930 Turbo & Super Charging Forum 04-29-2015, 12:59 PM
Replies: 25
Views: 1,267
Posted By camgrinder
Maybe 100 -150 rpm. Where you will notice it...

Maybe 100 -150 rpm. Where you will notice it more is after peak HP. With the cam advanced the power will nose over sooner instead of a gradual taper. Earlier Intake valve closing point in most...
Showing results 1 to 25 of 500

 
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