cam chang benefits

[diesel69]

Is power up or down? What injectors, turbo , head work, intercooler , and what smarty programming are you running?
First, check for the easy things. Boost leaks, valve lash, too much fuel for your setup etc....

These cams really move a lot more air than the factory cam will allow. On trucks with closely matched injectors, programming and turbos, you will see major improvements in driveability, power and egt reductions. However on some heavily fueled trucks I have seen major increases in EGT. Before you second guess your decision to buy one of my cams hear me out.

In a truck that is slightly overfueled, the added fuel will help clean up the excess fuel and lower the egts as well as make a few more ponies.

On a heavily overfueled truck there are a few things to consider. First after you have enough fuel to make heavy black smoke, you are effectively using all of the oxygen in the cylinder so any extra fuel you add has no oxygen to combust. What you see in this instance is that the extra fuel turns from droplets to a vapor. Anytime a liquid turns form a liquid state to a vapor it absorbs a lot of heat. It is almost acting like water injection to some extent. A lot of pullers and drag cars use this super rich state to keep their pistons alive.
Now introduce 20% more oxygen to the equation. That fuel that was busy absorbing heat is now producing LARGE amounts of heat thanks to the added combustion.

In short if your power is down and temps are up, something is wrong. Look at cam timing, boost leaks, and valve lash.
If your power is up and temps are up then Congratulations on the added combustion! You were and are heavily over fueled. Get some larger chargers and some head work!

Zach Hamilton

Hey Zach, I am interested in one of your cams. I have an 06 megacab with all the goodies. Twin turbos, twin cp3's, fire ringed and ported head, 200hp injectors, intercooler, intake manifold, nitrous, water/meth, head studs. etc etc.. What it the best cam for me?? How much are they??
Thanks for info.. Sean

 

[RedPuller]

My 12v and 24v springs go over 6k no problem.

Zach Hamilton

I inquired about a cam from Hamilton and told them 6000-6200 rpms were needed on the set up. And they flat out told me they didnt have anything for me.

Zach, please explain.

 

[Hamilton Cams]

I just ran my 12v springs at 6k for 45 seconds continous last week. No valve float, no piston to valve contact of any kind. Ran smooth as silk. This is with much larger and heavier than factory valves 1.940" intake 1.8" exhaust, 7/16" pushrods and 1.8 ratio roller rockers. Between the cam and the high ratio roller rockers the acceleration of the valves was off of the chart, not to mention the added valvetrain mass of the large valves and heavy pushrods. I have complete faith in these springs. If anybody would like to do back to back dyno testing between these and 60lbers, PM me and I will give you a set to try for free. I gaurantee these springs cannot be beat by another single spring. The retainers actually weigh half what haisleys titanium retainers weigh.

My 24v springs see 5000-5500 in numerous trucks quite often. I have run them in testing to 6k on my personal truck(p-pumped 24v). Once again, no piston to valve contact , no float, just smooth as silk. This was with a very aggressive cam and heavy 7/16" pushrods.

As far as the 6000-6200 camshaft, we have the profiles but until the new cast cores came in I didn't have a cam that I felt would run the 6200 rpm safely.
Zach

 

[WUnderwood]

as much as I hate sticking my nose in cam threads, I gotta do it

The list of people that use my cams includes Jorge Alfonso 1300 + hp CR , Brian Carters Big Red , and many more .

you sure Jorge has one of your cams? The pic on the Industrial Injection website doesnt show a cam...

My 24v springs see 5000-5500 in numerous trucks quite often. I have run them in testing to 6k on my personal truck(p-pumped 24v). Once again, no piston to valve contact , no float, just smooth as silk. This was with a very aggressive cam and heavy 7/16" pushrods.

you have any dyno sheets?

and yes, Reb, you are right on, great info...

 

[SmokinCummins]

I just ran my 12v springs at 6k for 45 seconds continous last week. No valve float, no piston to valve contact of any kind. Ran smooth as silk.

While this may sound like a good way of testing to uneducated buyers, There is no way I would risk my engine with just those results. I guess if your trying to compare them to 60 pound springs, then they are probably a good spring. But then again, I would not trust a set of 60 pounders in a 6k high boost engine.

 

[Mike Holmen]

Zach, you have coatings on the springs? At 6000 rpm's and being a heavy spring, they probably get hot and start to fatigue. Where did you get all the valve, rocker arm stuff from? I think I want to put that stuff into my engine. Thanks buddy, your keeping my fire going on my build-up.

 

[2Tone12V]

I just ran my 12v springs at 6k for 45 seconds continous last week. No valve float, no piston to valve contact of any kind. Ran smooth as silk. This is with much larger and heavier than factory valves 1.940" intake 1.8" exhaust, 7/16" pushrods and 1.8 ratio roller rockers. Between the cam and the high ratio roller rockers the acceleration of the valves was off of the chart, not to mention the added valvetrain mass of the large valves and heavy pushrods. I have complete faith in these springs. If anybody would like to do back to back dyno testing between these and 60lbers, PM me and I will give you a set to try for free. I gaurantee these springs cannot be beat by another single spring. The retainers actually weigh half what haisleys titanium retainers weigh.

My 24v springs see 5000-5500 in numerous trucks quite often. I have run them in testing to 6k on my personal truck(p-pumped 24v). Once again, no piston to valve contact , no float, just smooth as silk. This was with a very aggressive cam and heavy 7/16" pushrods.

As far as the 6000-6200 camshaft, we have the profiles but until the new cast cores came in I didn't have a cam that I felt would run the 6200 rpm safely.
Zach

So this must have just been developed within the last month or 2 im guessing??? And are you really comparing your springs to a 60lb spring here. I think were comparing apples to oranges in a way. Yes they are springs but come on. I think were all looking a little beyond the 60lb spring. Good to see you are coming along with things though. When you speak about your retainers, and pull a name out and compare it to them. Yes they are half the weight of Haisleys you say. But do they hold up??? Thats the key. Anyone can have an extremely light retainer made. Whether they hold up or not is will determine if they were worth the time and money. Or did it cost you an entire engine. Will yours hold up? What tests have you done to show this? If you have only had them for say 1-2 months, I dont think its safe to say quite yet if they are capable of the titanium retainers Haisley has. I think quite a few more hard tests should be thrown at it.

 

[2Tone12V]

I just ran my 12v springs at 6k for 45 seconds continous last week. No valve float, no piston to valve contact of any kind. Ran smooth as silk. This is with much larger and heavier than factory valves 1.940" intake 1.8" exhaust, 7/16" pushrods and 1.8 ratio roller rockers. Between the cam and the high ratio roller rockers the acceleration of the valves was off of the chart, not to mention the added valvetrain mass of the large valves and heavy pushrods. I have complete faith in these springs. If anybody would like to do back to back dyno testing between these and 60lbers, PM me and I will give you a set to try for free. I gaurantee these springs cannot be beat by another single spring. The retainers actually weigh half what haisleys titanium retainers weigh.

My 24v springs see 5000-5500 in numerous trucks quite often. I have run them in testing to 6k on my personal truck(p-pumped 24v). Once again, no piston to valve contact , no float, just smooth as silk. This was with a very aggressive cam and heavy 7/16" pushrods.

As far as the 6000-6200 camshaft, we have the profiles but until the new cast cores came in I didn't have a cam that I felt would run the 6200 rpm safely.
Zach

Re read through this and felt I needed to post again. So since you JUST got this cam. Seems like you have ran the set up once and were pleased. Now your ready to run with it?

 

[Hamilton Cams]

Mike, I worked with a designer and had them manufactured.

2tone,
I had this profile two years ago, runs great. I do not cut steel billet cams so I haven't gone after the high rpm crowd. With our new cast billets I believe steel billets in many applications are now not needed. As far as the springs the reason I compare them to 60lbers is that a lot of people still run the 60lb spring and are over 5k, this is ludacris! Not long ago Don with F-1 blasted me for coming out with a better spring and retainer for the 12v. He had stated that he runs his to 5k with 60lbers all the time and that nothing more was needed. After talking with Van and numerous others as well as doing some research I decided to design a better mouse trap. Van Haisley has a great retainer lock combo, I merely used his retainer for weight comparison in fact I buy my valve locks directly from Van. I have springs with more than 10,000 miles on them run to over 5k with agressive cams. I have done testing. The springs are shot peened and have a nitride coating all for longevity.



Zach

 

[Hamilton Cams]

sorry Will I just re-read and noticed I had not addressed your question. I sold my p-pump 24v to Buck Hyndman, no I do not have any dyno sheets.


If interest in taking me up on the free 12v valvetrain package, p.m. me with your mods

 

[kjpcummins]

zach
i never thought of this before but if i got a cam for my truck which is currently a vp 24v would i still be able to run the same cam when i decided to ppump it

 

[Hamilton Cams]

Yes sir, but you would need to make sure you got the bolt on retainer

 

[WUnderwood]

sorry Will I just re-read and noticed I had not addressed your question. I sold my p-pump 24v to Buck Hyndman, no I do not have any dyno sheets.


If interest in taking me up on the free 12v valvetrain package, p.m. me with your mods

thanks a lot, I really appreciate it, but the 12 valve is going to stay relatively stock

 

[COMP461]

Here is a video with 6000 RPM’s of 24 valve Cummins , this pass was doomed from the beginning , but was a easy 8.30 pass but for rolling the tree.
The wastegate melted wide open , so it was fun getting up on the charger. The Tran break band was on its last leg , so it rolled the tree, starting the clocks and adding 3 tenths to the pass.

I do not use free revving engine to test valve springs , the proper method is to first look at the acceleration rates of the cam profile . Then pick the proper spring rate for that specification . 6000 is not really a problem, I’m use to 11,000 small blocks , the valve train requirements go up geometrically with rpm, and it also dose not car what fuel or ignition is used.
The weight of the push rod is not near as critical , that side of the rocker is leveraged by rocker ratio .


http://vids.myspace.com/index.cfm?fuseaction=vids.individual&videoid=5609948



it rolled the tree the next pass as well , this was my last pass in it was sad to walk out after spending several years building that little hot rod .

 

[Mike Holmen]

Greg, nice runs buddy. Way faster than stock.

 

[COMP461]

That cam is one of the profiles that was a forerunner to the 6000 rpm 8620 steel billets , I have use that cam in a lot of Sled pullers , and the neat part is that the big .200 numbers and short seat timing gives incredible airflow , without bleeding off cylinder pressure .
This cam works well in all out Common Rails as well, on one of my Cummins UGL’s it pulls hard from way down low, moving a lot of air on big single charger .
With .380 lobe lift , it necessitates ported heads ,and all the other components of a all out engine

 

[HT3500]

hey Greg which cam you run in your daily driver???

 

[COMP461]

Every MaxSpool cam is spoken for, almost as it comes out of the cam grinder . The first 100 UGL’s are going fast as well . I really wished I had more time to work on my tow rig , but the NX Dragster is taking all of my time, we are trying to make a race date that is fast closing in. The new stand alone will be ready the end of the week, and its time to get back on the dyno.


I will eventually put a 2.5++ in it . That profile has such good towing manners and really cools the egt’s down. The one I wanted to put in it , Crew Girl just about wrestled me out of.

I have been spending a lot of time doing development work on some CR grinds that are generous in the lift department , but Short and sweet so as not to bleed off compression . These profiles are very smooth and will compliment a motor with a ported head and all the tricks, but will not require additional piston to valve clearance. I have several out there now, and they are mean

This kind of knowledge takes years to refine, .

 

[JasonCzerak]

Let me put it like this. I just got back from my 3rd tour in Iraq as a tank gunner. I try to buy the best for my truck. If it's made in Texas I'll buy it here. At the very least I buy American (when possible). Everyone know's all these cam blanks come from Brazil. Sure there's a few Chinese fence posts floating around. But Bullet said they weren't worth grinding and that's all the further that junk ever went. Well, after I did the research I only had 3 American ground choices.

Bill Fletcher at Diesel Pros
Don M at F1 Diesel
Greg Hogue at Maxspool Engineering

I went with Maxspool because he was the only person I could speak to directly. The only man that picked up the phone from a soldier in Iraq.

Dumb question here. But what does being a soldier have to do with cam selection?

 

[JasonCzerak]

Yes the piss has began to flow... I'm not biased.. I have parts from Greg, Don, and Hamilton on my truck.. Every one of them seem like good folks to talk too.. Agree to Disagree.. A cam shoot out would be a good thing..

A Cam shoot out is about as likly as a CP3 shoot out.

Come to think of it, has there been any shoot out of anything?