where to get a 175 cam

is he the wizard? that's who I would want to speak with.

There's a number of cam grinders Charlie. Crane, Cam Craft, Lunati, Comp Cams, just to name a few names. There's smaller less common names for example Mike Jones is a camshaft design expert who I have talked to and given information and flow numbers to and had grind cams in the past. Gary Baker a well known Farmall engine builder out of Michigan grinds cams. Just like everything else, there's dozens more out there.

In dealing with Mike Jones, he has sent me cams but service is slow, I had mike do a few cams for different engines. his numbers four some different engines were close to what I had wanted weather the engines were simple slightly modified 240 did or 400+ cid ones. Gary Baker has a grind that works well and takes the time to grind a split duration cam, meaning the intake and exhaust lobes have different grinds on them. Gary is fairley quick and I'll send him several cores machined and prepped for grinding at a time to make it easy. Berry is fine and reasonably fast, but don't let them do the thinking.    

And yes pank, I did read Larry's post. He traded you an old cam that had been passed around the block and bought one that worked much better....you used a cam in an engine that you don't know if it really worked or not. Couldn't move the boat on the first run and on the fifth run it went kaboom....so you're only helping me reenforce my point. Had your engine been so successfull and exceeded expectations, a simple repair would have been done and you'd be pulling. Instead you quit.

You do make a fine secretary though pank. You are able to look up phone numbers and post them as well as avoid questions by Cranky and Dr Allis. Larry wants you to post some information, Dr wants some information and Cranky wants to know why the cam ramp has no effect on lifter acceleration.

Just as in the good old days your man crush on me is evident. You'll reply to my posts and ignore others questions.   

Marty cranky asked who the wizard is . your post is the first post calling one the wizard so tell him who you were talking about and I kept going with . Dr allis 12.5 runs well on 110 motor octane for years with no indication of detonation on pistons when engine gets freshened . yes camcraft cams is the number that is given

Edited by mgburchard - 28 Aug 2014 at 8:21am

Sooooo, you don't actually KNOW what the timing is set at.......TDC or 30 degrees BTDC.

Not something with that kind of compression.

The dynamic compression is just 12.5.1 because of what the can blows down and the gas is 110 motor octane not 110 advertised . advertised trips a lot of guys up on cams and gas

Motor that's stuck in everybody's head was in 2010 its sept 2014 now right.plug readings will tell you where timing is and Pankey has two timing lights that have advance .yes I agree with you on the theoretical stuff this thread is a good example where Marty's theory on camshaft was proven wrong by real world running.

Edited by mgburchard - 29 Aug 2014 at 7:00am

mgburchard wrote: The wizard says ramp rate or lifter acceleration depends solely on lifter diameter not duration.

Just do you don't get lost.

If the cam grinder uses .002 lifter rise for his starting and stopping point then his advertised duration may be 280 but the cam will not be as big as the other cam grinder that uses .010 lifter rise for starting and stopping point for a 280 degree advertised duration . again cams have to be compared at the same lifter rise . advertise duration is manipulated to sell cams to people who don't know camshafts and want the bigest . duration is time measured from a lifter rise starting point grinder chooses to use for opening point till it gets back to that number on closing side of cam .

Edited by mgburchard - 29 Aug 2014 at 8:42pm

Congratulations, you're starting to learn, a few days searching around the net is doing you some good. Now you'll be able to figure out why your previous statements are incorrect.

Now let's work on the 56 degrees of overlap, but you'll first need to figure out more of your cam profile to know if the valves are moving or not.

You see w all have different expectations, for some taking pictures of their tractor on the trailer or in the garage makes them happy. For others competing and doing well meets their expectations. For others, it's doing well in nothing but the highest levels of competition.

As Mike pointed out earlier, all your "theories" are just that until proven. So where's the proof, a video of an engine running rough in the garage doesn't mean much......solid results from success in high levels of competition will.

to clarify lifter dia. limits valve lift rates, the larger the lifter dia. the faster the cam can be designed to open valves.if you exceed these opening rates for a given lifter face dia. the edge of the lifter will gouge or dig into to the camshaft lobe with disastrous results.

Edited by cranky - 31 Aug 2014 at 6:58pm

Cranky please tell Marty what design flank the allis factory cam core design that's going to be reground is ? He is starting to learn maybe. I still don't think he has the advertised duration difference down pat yet. In order to know what a can hydraulic ,major and minor intensity is you must have more than advertised duration .

To sum this up Marty took one piece of info advertised duration and started as a lot of inexperienced people do filling in the rest of the blanks and making assumptions . Marty says camshaft is to slow on his assumptions and would burn valves. Larry says camshaft was passed around and no engines burned valves that's the proof Marty can't see. I do agree with cranky Charles is a cam grinder and more qualified to get as in depth as client needs or wants to go.

Edited by mgburchard - 31 Aug 2014 at 10:59am

Marty you silly silly boy . cam grinders do use different lifter rises for advertised lift . if we do like cam grinders say and look at two cams at .050 lifter rise and have the same duration at .050 for both cams even though they both have different advertised durations they will make the same peak horsepower. Now you say lifter rise is to slow and valve will burn it didn't Larry proved that . reason is your looking at one point instead of all things like the big orange fellow recomended . the lifter raisers raisers the pushrod pushing the rocker arm at a ratio and opens the valve . lifter rise velocity ×rocker ratio = valve speed and that's at what you were worried about burning but as Larry stated it doesn't .

Intake closing point was figured with 7.5 rod 4.5 stroke 4.125 bore much like what Larry ran cam in that again didn't burn valves like you said . Larry said it ran well for brush pulling . I do not know how much compression Larry ran however the one you dubbed wizard did show that I believe if it had 16.2 static it would fall to 12.5 dynamic compression . which is still a good compression for low end torque without having to advance the cam to increase cylinder pressure as most do . it is safe to say that most builders pullers don't get into this level of knowledge most who do are just trying to impress their lesser knowlageable friends . however it is safe to say that you can be successful and not need this level of detail or understanding . Marty has won some pulls not understanding it all .

Edited by mgburchard - 31 Aug 2014 at 1:57pm