27 replies to this topic

[426hemicuda]

Maybe Andy can chime in for his customer to correct him....or is this really correct?

Post #1:
Originally Posted by Back N Black:
Just finished the Cam and head install on my R/T. went with Performance Werks Racing Eagle Meanstreet heads and an OEM 6.4 L cam with phaser limiter..ran into a few obsticals along the way but finished her up last might around midnight. Here is a video of the finished product. Hope you enjoy the sound.. I know i do.


Post #7:
Originally Posted by Back N Black:
I haven't dyno'd yet but it feels pretty strong.. the Vendor said it would be close to 100HP at the wheels. Not sure if it is that much but the dyno will tell the truth.

All posts are from here:

http://www.challenge...ead.php?t=84094

[Andy@PWR]

100rwhp would be pretty substantial. I would guess close to 100hp at the crank. I have seen the largest Comp VVT cam make 100rwhp by itself and lets look at the 2 camshafts side by side.

Eagle OEM: 188/205 530/517 115LSA
Comp 274: 226/234 619/612 116LSA
Dodge 6.4: 215/221 600/566 121LSA

Obviously the camshaft is a good bit smaller with a much wider LSA which helps with tuning and drivability. Lets assume we get half the power out of this $75 camshaft compared to the $850 camshaft, that will net us roughly 50rwhp plus 25-30rwhp for the heads and there you have 75-80rwhp or 100hp at the crank and I think thats conservative. The 6.4L camshaft is drastically larger than the oem Eagle camshaft and I think 50rwhp is definitely doable from a cam only swap. I guess only time will tell.

[rdrdr90]

Will the 6.4 cam go in an Eagle 5.7 with nothing done to the heads or valvetrain?

[70Barracuda]

Will the 6.4 cam go in an Eagle 5.7 with nothing done to the heads or valvetrain?

I think that is the case and if so 50 rwhp from a simple cam swap would certainly seem like a great mod. You would still have to get it tuned but the expense should be minimal compared to many other mods.

[rdrdr90]

Exactly what i am thinking.

[Hemi31]

You will need springs.

[70Barracuda]

You will need springs.

I always swapped in new lifters and springs when doing a cam swap on the older Mopar engines so generally figure on that. Do you just change to the 6.4 springs? How about lifter replacement ?

[Hemi31]

Lifters are fine unless you have a ton of miles. It's not like the old flat tappet lifters. Not sure what springs to use as a drop in. I actually ordered on of these cams for my truck incase we ever get 2012 tuning.........I figure by the time that happens my warranty will be up anyway.

[Jay6spdRT]

I want to see the dyno. If the Dodge 392 cam and the PWR meanstreets head upgrade does put an extra 70 hp at the wheels, it will be hard to resist.

[rdrdr90]

You will need springs.

That was more directly what i was concerned about. Still, pretty cheap hp.

[426hemicuda]

Is the Cam Phaser required for the 6.4 cam or is there good PTV clearance?

[70Barracuda]

There was an article recently in Mopar Now where they tested cams on a 2006 5.7, they upgraded to Comp. Cams valve springs part number 26918-16 I see they run a shade over $200 at JEGs, not sure if those would be the proper match for our engine with that cam or not.

[Hemi31]

Different cylinder head. The Eagle valves sit taller than a 2006 head.

[Andy@PWR]

and never use a comp 918 spring.

[Hemi31]

Damn......and I was gonna list that set for sale;)

[70Barracuda]

Well I thought it odd that JEG's list those springs for LS1/LS2/LS6 engines (sounds like a chevy part to me) but Summit had it as a universal part so who knows. However when you have an article in a magazine testing Competition Cams and they provide the valve springs you would like to think that they would provide the correct ones for the job.

[Hemi31]

Most of the springs we use on Hemi heads are listed LSx. Just the 918 has proven itself to be a disaster on a Hemi.

[70Barracuda]

Most of the springs we use on Hemi heads are listed LSx. Just the 918 has proven itself to be a disaster on a Hemi.

Ok understood, I'm used to 340's to 440's, I'm still trying to get a good understanding of all this modern Hemi stuff.

[Hemi31]

PSI1511 ,Pac 1218 and 1518, and theres a manley that is used now thats Hemi specific....don't have the number.

[426hemicuda]

Is the Cam Phaser required for the 6.4 cam or is there good PTV clearance?

I'll ask again and rephrase the question....
Is the Cam Phaser required for the 6.4 cam and Stock Eagle heads? How about the Eagle Meanstreet heads? or is there good PTV clearance?