3.6L Pentastar Port flow +300cfm!?!?

-
myduster360

myduster360

Well-Known Member
Joined
Oct 8, 2009
Messages
609
Reaction score
952
Location
North Mississippi
Finally got a 2013 3.6L head on the flowbench (SF-1020)

I only had time to get the Intake done but WOW! The Stock 3.6L head is a beast!

Intake port flow maxed out OVER 300cfm at .444". At stock intake lift of .405-.417", it's still close at ~296cfm.

Suffice to say, it kicks the crap of most any SB head.

upload_2020-6-19_17-5-49-png.png


44121270885_o.jpg?_nc_cat=110&_nc_sid=8024bb&_nc_ohc=QGM1LAcRmF4AX_Abnu_&_nc_ht=scontent.fmem1-2.jpg
 
a dual cam hemi head should pull great numbers . just look at the drop to the valve head .
 
Interesting. My Honda j35 v6 heads stock went 312 @.500 intake and 198@.500 on exhaust. Very similar to the pentastar v6.
 
myduster360 said:
Finally got a 2013 3.6L head on the flowbench (SF-1020)

I only had time to get the Intake done but WOW! The Stock 3.6L head is a beast!

Intake port flow maxed out OVER 300cfm at .444". At stock intake lift of .405-.417", it's still close at ~296cfm.

Suffice to say, it kicks the crap of most any SB head.

View attachment 1715549886

View attachment 1715549887
Click to expand...
just curious. my wife's 2019 jeep Cherokee has a 3.2 L. Do they use the same head?
 
I would sure hope it flows more than an SBM head, that's only a hair less than a 2009-up 5.7L Hemi head. There aren't many other ways to get 300 HP out of 3.6L naturally aspirated while also meeting emissions and fuel economy standards.

I wish the Pentastar platform could handle forced induction that would be awesome in so many ways... that's a big reason you almost never see them swapped.
 
MopaR&D said:
I would sure hope it flows more than an SBM head, that's only a hair less than a 2009-up 5.7L Hemi head. There aren't many other ways to get 300 HP out of 3.6L naturally aspirated while also meeting emissions and fuel economy standards.

I wish the Pentastar platform could handle forced induction that would be awesome in so many ways... that's a big reason you almost never see them swapped.
Click to expand...
Don't they have super chargers for these?
 
thesiren74 said:
Don't they have super chargers for these?
Click to expand...

Sure, I know that's a popular aftermarket upgrade for the 3.6-powered Wranglers since they're such heavy pigs but the factory never offered anything and doesn't seem to intend to. You can put a blower or turbo on anything but how long it lasts is the issue. Turbos are becoming more and more common on new cars so if FCA would have been able to offer a turbo Pentastar I figure they would have done it by now.
 
MopaR&D said:
I would sure hope it flows more than an SBM head, that's only a hair less than a 2009-up 5.7L Hemi head. There aren't many other ways to get 300 HP out of 3.6L naturally aspirated while also meeting emissions and fuel economy standards. I wish the Pentastar platform could handle forced induction that would be awesome in so many ways... that's a big reason you almost never see them swapped.
Click to expand...

On that bench, the 3.6L significantly outflows an Eagle head at all lift points up to .444"(retainer hit the guide). The Eagle was just shy of 300cfm at its max .700"

A 3.6l handles 350-380hp at the wheel without too much issue and 425-450whp with head studs. That's up to 500hp at the crank.
I'm wondering how much more should it handle?

Edelbrock, Ripp, Spintrex, Vortec all make Supercharger kits and Prodigy offers single turbos and twin turbos for the Challenger.

I have a Sprintex pd blower getting ready to go in my Dart 3.6L swap.
77708054528_o.jpg?_nc_cat=109&_nc_sid=07e735&_nc_ohc=xINDrPOE5hAAX_i917x&_nc_ht=scontent.fmem1-1.jpg

upload_2020-6-22_21-59-57.png
 
myduster360 said:
On that bench, the 3.6L significantly outflows an Eagle head at all lift points up to .444"(retainer hit the guide). The Eagle was just shy of 300cfm at its max .700"

A 3.6l handles 350-380hp at the wheel without too much issue and 425-450whp with head studs. That's up to 500hp at the crank.
I'm wondering how much more should it handle?

Edelbrock, Ripp, Spintrex, Vortec all make Supercharger kits and Prodigy offers single turbos and twin turbos for the Challenger.

I have a Sprintex pd blower getting ready to go in my Dart 3.6L swap.
View attachment 1715550030
View attachment 1715550038
Click to expand...

That makes sense regarding the flow vs. lift considering it's a 4-valve head, 2-valve heads always need more valve lift to get the same flow because the 'curtain area' is less at any given lift.

I'm sure your Dart will kick @$$ with that blower that's awesome! I guess what I'm getting at is there are so many choices for high-output V6 engines these days the Pentastar gets overlooked for swaps and the lack of a factory forced-induction version doesn't help its appeal. I think they're great engines my mom's 2014 300C has one with the 8-speed and AWD, it can really move for being a big heavy sedan.
 
You must log in or register to reply here.
-

Back
Top