New EcoBoost Development....

[EcoBrick Bob]

Pretty sure Ford tried a "stroker" kit. They tried to make it a 3.7 L as far as I know..but kept breaking it.

Definitely happened... G8 friend was a contract Metallurgical engineer on the EB project. They had issues after a few hundred miles with the 3.7 L variant.

You should read the lengthy thread on Flex Net forum regarding Ford and their possible denial of warranty issues.... Getting a bit heated at times... But at the end of the day... It is what it is.

 

[thePUNISHER]

Definitely happened... G8 friend was a contract Metallurgical engineer on the EB project. They had issues after a few hundred miles with the 3.7 L variant.

You should read the lengthy thread on Flex Net forum regarding Ford and their possible denial of warranty issues.... Getting a bit heated at times... But at the end of the day... It is what it is.

Hmmm. I wonder what was breaking.....And why it is holding together in the 3.5.

 

[darreli]

Hmmm. I wonder what was breaking.....And why it is holding together in the 3.5.

Connecting rods....I believe

 

[EcoBrick Bob]

Correct. The stroke is longer in the 3.7.

 

[Showgun]

Correct. The stroke is longer in the 3.7.

........only until the rod breaks then it's 'too' long.

C.

 

[Crash712us]

Hmmm I wonder what the stroke/bore ratio is, it couldn't be that much different. When picking up only 200cc more displacement.

 

[onebadf150]

Definitely happened... G8 friend was a contract Metallurgical engineer on the EB project. They had issues after a few hundred miles with the 3.7 L variant.

You should read the lengthy thread on Flex Net forum regarding Ford and their possible denial of warranty issues.... Getting a bit heated at times... But at the end of the day... It is what it is.

Pretty sure Ford tried a "stroker" kit. They tried to make it a 3.7 L as far as I know..but kept breaking it.

thanks guy for the info!

I think with the right turbos and fueling the 3.5L will produce enough power to make us all grin:sun:

 

[SHO U UP]

Connecting rods....I believe

That's the problem when you build with "powdered" connecting rods. :shakehead Not the first for a Ford motor to crap out in that department.

 

[LMSRick]

The flow gains are almost unbelievable, but as most people know, numbers aren't everything. We need to get the port finished, then digitize and CNC it and try it on a car to make sure drivability doesn't suffer.

From SVTPerformance.com















-Rick

 

[EcoBrick Bob]

From your previous post, the Intake Flow increased 110 CFM That's a 60% increase.

The Exhaust flow increased 37 CFM or around 25%.

I'm impressed!!!!

Get those puppies on a car!

 

[Scrming]

dang... need to start playing the LOTTERY!!! LOL!

 

[Paulford8]

From your previous post, the Intake Flow increased 110 CFM That's a 60% increase.

The Exhaust flow increased 37 CFM or around 25%.

I'm impressed!!!!

Get those puppies on a car!

That is incredible. Cant wait to see what this does on the car!

 

[LMSRick]

From your previous post, the Intake Flow increased 110 CFM That's a 60% increase.

The Exhaust flow increased 37 CFM or around 25%.

I'm impressed!!!!

Get those puppies on a car!

Yeah, that's why I said the gains seemed unbelievable....

Now to get them on a car.... :woo-hoo:

-Rick

 

[First-SHO]

I will be the test subject.

 

[EcoBrick Bob]

How hard is it to tear down the EB engine to install? What is involved with fuel system, cams etc, compared to a OHV GM engine? Looks to me like a lot more work.

 

[thePUNISHER]

How hard is it to tear down the EB engine to install? What is involved with fuel system, cams etc, compared to a OHV GM engine? Looks to me like a lot more work.

not something done in your driveway thats for sure! the engine/transmission/subframe are dropped out the bottom of the car using a powertrain lift....then the heads can be removed....... cam timing isnt really any different than any of the other ford v6 ohc engines.....

ive already had the heads off a 3.5 fusion. i dropped the powertrain out the bottom....

my curiousity is how much boost the head bolts can take before the heads lift off the block......doesnt seem to be an issue yet.....if one were to go and do a head swap though i would think you would upgrade to arp fasteners if they are even available....

boost levels will drop like a brick with increased flow #s like that. i would say installing those heads would mandate a turbo upgrade......

 

[thePUNISHER]

Just out of curiosity... Do you have the cam profile handy for the stock cams? I don't think i've ever seen them posted.

intake lift: .350in
exhaust lift: .360in

can find any duration info

 

[EcoBrick Bob]

I was amazed at how much better they flow. On my G8, the stock heads flow great, so when I had them ported, I gained around 10% or less. Likely wasn't worth it, but it gives me bragging rights!!!!!

I figured it had to come out the bottom. Would very hard to take off rear headers, maybe impossible from the top.

So... if the head gasket blows due to boost... it means on needs to get the heads CNC'd at the same time!:angelnot::angelnot:

 

[Johnny Langton]

Interesting flow gains. Now we need to see some stockish profile cams with .500" lift to take advantage of all of that newfound airflow.
JL

 

[somedude_001]

boost levels will drop like a brick with increased flow #s like that. i would say installing those heads would mandate a turbo upgrade......

You may be right but there is still something to be said about making more power on less boost. At least until there is a big turbo available for the 3.5 EB