is there such thing as a towing minded cam??

pizziLLA

pizziLLA

Pizza, diesel & jeep tech
Joined
Aug 31, 2007
Messages
145
so i grenaded my engine at 94K miles trying to pull 13k lbs from reno NV to moab UT and back.

i get a new engine out of the deal thanks to the 100k cummins warranty:rockwoot:

HOWEVER

before i let them put a new engine in it, i think it would be cool to stud the head and put a cam that would help with EGTs and maybe an extra 15hp??

i wanna know if anyone makes a cam that is more geared towards towing and hauling performance instead of just general all out performance??
 
the cam is set up to spool the turbo at lower rpms which would help keep the egts down when pulling. i know i spool my 62/71/14 at like 1500-1600 rpms where my buddy spools his 62/17/14 at 2000 rpms and out setup is the same except i have an auto and h2 cam and he has a manual and stock cam. he sometimes gets a code for low boost when he is pulling a trailer. the only way a cam
 
if you going to stay with a stock charger and tow , then I use a MaxSpool 2.0 which has the big intake profile of the 2.5++ , and a small exhaust profile on the tight lobe separation angle of a CR, spread to 102
if your going to change a larger charger then a 2.5++ on a 110 LCA would really thump .
both cam profiles will cool EGT's and make cool air for additional power potential.
I can grind either of these profiles as a regrind , or use a new Cummins UGL

If your wanting to go farther I have the new 3.0 , its will only go on a UGL
 
Pretty much any cam will help you while towing. It'll get your boost up quicker which will help you come off the line easier and keep your egt's lower. It'll also help you spool your turbo up while your cruising down the highway. I've got a hamilton diesel bigstick billet cam (181/210) in mine and am very happy with the improvements it made. I don't tow but I couldn't imagine a cam doing anything but helping you.
 
The only change I made was the cam and valvesprings. My egt's pre-cam were getting up to 1400* pretty often. Boost never got over 25psi or so. After the cam, I never got over 1100* and I was building 38psi. The biggest difference was ease of driving. Now, a tune will do the most with your power curve but a cam will make it useable. Pre-cam the truck pulled it's best in the torque. Post-cam, it just plain pulled good from any rpm. I didn't have to drop a gear everytime I got below 1,500rpm anymore.


That's with my Maxspool 2.5+. It's a bit much for a stock charger, the turbine just won't flow the volume of air it puts into the cylinders. But, I didn't buy that cam to tow with. I was just helping a friend out. Comp461 is the man when it comes to cam's. That Maxspool 2 would be a great towing cam.
 
cool thanks for the info guys, im still weighing options for the new motor build.


im really digging the prospect of having some cam fun with the engine!

how will putting an aftermarket cam effect my engine's lifespan? i was just reading a thread in the 03-07 sub forum about aftermarket cams failing and that kind of turns me off.

i want engine number 2 to last longer than a measly 94K miles
 
I have a MaxSpool 2.5+ in one of my tow rigs. It is amazing how low RPM it will run without choking out. Of all the cams I have tried, it is my favorite tow cam. Mine is a regrind, and I am a firm believer in running new tappets on a new grind. If your really concerned about flaking, get one on an UGL.

I would not waste the money on studs and o-rings unless your planning on turning a ton of power. The stock MLS and factory bolts will take alot of abuse.
 
Mighty Goat said:
The only change I made was the cam and valvesprings. My egt's pre-cam were getting up to 1400* pretty often. Boost never got over 25psi or so. After the cam, I never got over 1100* and I was building 38psi. The biggest difference was ease of driving. Now, a tune will do the most with your power curve but a cam will make it useable. Pre-cam the truck pulled it's best in the torque. Post-cam, it just plain pulled good from any rpm. I didn't have to drop a gear everytime I got below 1,500rpm anymore.


That's with my Maxspool 2.5+. It's a bit much for a stock charger, the turbine just won't flow the volume of air it puts into the cylinders. But, I didn't buy that cam to tow with. I was just helping a friend out. Comp461 is the man when it comes to cam's. That Maxspool 2 would be a great towing cam.
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Your boost increased 13lbs after you cam swap. Intresting
 
dzlfarmboy said:
Your boost increased 13lbs after you cam swap. Intresting
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On Texas grades it sure did. It let the engine perform like it should instead of acting like an internal EGR. Keep in mind, that was on a stock 9cm turbo with the wastegate disabled. It truely flowed more air than that little turbo could ever expell.
 
And what of your H2 cam? What did you notice when pulling similar loads on a stock turbo?
 
SmokinCummins said:
I have a MaxSpool 2.5+ in one of my tow rigs. It is amazing how low RPM it will run without choking out. Of all the cams I have tried, it is my favorite tow cam. Mine is a regrind, and I am a firm believer in running new tappets on a new grind. If your really concerned about flaking, get one on an UGL.

I would not waste the money on studs and o-rings unless your planning on turning a ton of power. The stock MLS and factory bolts will take alot of abuse.
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how many cams have you tried?
 
I liked my Helix 2 for towing in my '99 and my '98 12v. I've also installed them in CR's. The CR owners report lower EGT and 2-3 MPG improvement over an identical 400 mile round trip.
 
I have a PDR cam that is supposed to be a "street/towing" cam, I noticed a big difference in spoolup time with this S400 I run as a single. Way lower EGT's at <3000rpm than before.
 
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