cams?

[randyswelding]

what will a cam do for a diesel?i hear it reduces the egts and gives better power but hows driveability,i figured id look at a towing cam since thats what ill be doin.then when i do that will i need head studs and oringed or any thing?the turbo ill be runnin is an s300 62/65/13 combo and to run 370 edms and pritty much just like whats in my signature.or shound i noteven worry bout the cam?

[mprmn08]

if you do pdr has good prices on cams. Pdr says lower egts, better mileage, more power, faster spool, and i think some other stuff. check it out. www.pdrdiesel.com

[randyswelding]

what is the marine cam,it says its like a towin cam,but im used to seein an RV cam,is that the same thing?

[1991cummins]

but whats the sacrafice... because if there was none why didnt cummins put one in in the first place... things dont normally work like that... i dont know, it just seems a little fishy...

i could be wrong, but i would want some dyno results or at least unbiased opinions before i dropped five hundred bucks on that...

[fergavs]

An RV cam is a gasser term. I run a Max Spool 2 cam. Its great, I love it. A cam will bring boost on faster because the lift and duration will hold the intakes valves open more/longer. Also by doing the same with the exaust it gets the heat out faster. A cam will drop egt, lower boost and also increases mpg. The engine is running more efficient so it doesnt have to work as hard. The boost will drop a few pounds because there is less restriction in the engine. As far as actual HP on a dyno I doubt youd see a lot of difference but SOTP you can tell power comes on sooner and lasts longer. Very good purchase and cams are getting cheaper all the time. They can be had for 400-600 bucks. Changing the cam is a little fun. Its one of the bigger jobs I have done so far because you have to pull all the stuff of the front of the motor. Its a great time to do the KDP if you havent done it yet though.

[fergavs]

1991 cummins, the cam shaft will increase your nox emissions. From all of the research I did before buying one the only bad stuff I found is that it would increase polution.

Also on the regrind cams (like mine) one does have to worry about the cam wearing. When they regrind it can go through the hardning on the lobes causing them to wear quickly. A billet or brand new shaft is a better choice but a little more spendy. Again having one in my truck I have no negative things to say about a cam upgrade the difference is AWSOME.

[randyswelding]

where do i find more info on these max spool cams?

[randyswelding]

oh ya i did forget to tell yall i did get a 91.5 motor and thats what i want to put the cam and turbo on

[bgilbert]

You already have a cam in both your motors. Both are proven to make huge hp. KTA made 600+ with a stock one, leave it alone.

[railhor5.9]

my buddy zack hamilton builds his own check out there pushrods to his website is hamiltoncams.com

[CAJUN 93]

You already have a cam in both your motors. Both are proven to make huge hp. KTA made 600+ with a stock one, leave it alone.

this is true, but would he have made 700+ with a better stick? there's always room for improvement.

daryl

[fergavs]

I must agree Cajun. I definetly did not hurt my truck thats for sure.

[JAyers]

I dont think my 500 would have been possible with out the Helix ive got esp with a 62mm charger.

[hassy21]

i race a car on dirt with about 700 hp on alcohol and we run the cams not for the power that it produces so much as it increasing our rpm range and adjusting our power band to what and when our peak hp comes on. on a diesel i would think it would be just as important because of the turbo spooling. im somewhat new in the diesel phase but have been in racing since i was 8. just my 2 cents

[dpuckett]

Bill, you have fuel for well over 550, probably closer to 600. A cam and porting the head would help air get to the cylinders to burn the fuel better, and probably increase your dyno results.

But, for the guys not pushing the envelope, it may or may not increase power, but it should shift your power band one way or another, depending on how it is ground. I may get a cam for my W350, esp if I can gain 2mpg, next summer/ fall.

Daniel