Coyote Flow numbers?

[Sickwindsor]

are these pretty accurate?

Flow Numbers
Stock Coyote Heads
Lift (Inches) Intake (CFM) Exhaust (CFM)
0.200 180.2 147.8
0.300 243.5 180.0
0.400 280.0 189.7
0.500 289.4 201.4

[Torinoman]

if accurate then I'm not impressed

[SonicblueGT03]

True flow numbers are hard to come by. The most common comparison seems to be with the Yates D3 heads, which commonly have a peak intake flow of approx. 435 cfm. The Coyote heads are said to flow a bit better. I'd love to see some real numbers though.

[Sickwindsor]

This is where I got the data posted above.

http://www.musclemustangfastfords.com/projectcars/mmfp_1203_2011_coyote_5_0l_heads_and_camshafts_upgrade/viewall.html

It looks like most of the port work is on the ext. side for the TEA ported comparison.

[Sickwindsor]

Who makes big lift cams for these motors?

[grabberblue_11]

Who makes big lift cams for these motors?

Comp cams is only company making them they have 3 stages. I believe stage 3 is aggressive.

[Mach1]

if accurate then I'm not impressed

bunch o junk, throw it in the gutter

A bolton non boss coyote makes near ls7 rwhp, not bad!

[majorownage]

Who makes big lift cams for these motors?

You will be disappointed.

[Sickwindsor]

bunch o junk, throw it in the gutter

A bolton non boss coyote makes near ls7 rwhp, not bad!

I understand your view. I think the coyote is a great engine. However past the bolt on stage is what I am addressing. Your engine is still a air pump limited by the restrictions that will limit the power potential overall.

If ported the heads flow well but are limited by piston to valve clearance and you can only add duration that limits what the engine can do.

Stage 3 cam specs are 236/243 Intake and Exaust at .050" and only .492/.453 I/E lift.

This is a pretty mild cam for a a old 302. Just trying to wrap my head around the new ones.

Luke

[YALE]

There's no point in big lift cams. The new engines don't need them. They have a ton of valve area, and over 100% volumetric efficiency stock. Save your pennies to throw a power adder at one, and better rods, if you're scared.

[Sickwindsor]

There's no point in big lift cams. The new engines don't need them. They have a ton of valve area, and over 100% volumetric efficiency stock. Save your pennies to throw a power adder at one, and better rods, if you're scared.

I agree they are very nice engines. If there was a N/A racing class for the coyote you might change your mind about cams.

Luke

[YALE]

I agree they are very nice engines. If there was a N/A racing class for the coyote you might change your mind about cams.

Luke

I doubt I do. Do some more reading.

[Torinoman]

True flow numbers are hard to come by. The most common comparison seems to be with the Yates D3 heads, which commonly have a peak intake flow of approx. 435 cfm. The Coyote heads are said to flow a bit better. I'd love to see some real numbers though.

I really doubt they flow close to that. Everything I've seen puts in the high 290s low 300s.

bunch o junk, throw it in the gutter

A bolton non boss coyote makes near ls7 rwhp, not bad!

Never said it was junk, but those flow numbers don't impress me by themselves

[SonicblueGT03]

I really doubt they flow close to that. Everything I've seen puts in the high 290s low 300s.




Never said it was junk, but those flow numbers don't impress me by themselves

That's why I said I'd love to see some real numbers. The only articles I can ever find compare the D3's and the Coyotes. If they actually flow that well, I'd be amazed.

[YALE]

You guys know there are two intake valves on every cylinder, right?