Ford Racing Cobra Jet Intake Thread

[BOSSPOWER]

From the PBTH website:



Other images here:

http://pbhperformance.com/portfolio-items/manuel-garcia-2012-boss-302/

No long tubes and cat deletes on this dyno sheet...

 

[dabossinnne]

Really nice top-end gain, but looks like you're giving up quite a bit of power "under the curve" below about 5k RPM.

 

[ford20]

No long tubes and cat deletes on this dyno sheet...

So you are pretty close to 480hp with those I assume

 

[BOSSPOWER]

So you are pretty close to 480hp with those I assume

475 with 390...leaving the car on Tuesday night for the CJ intake install.

 

[pufferfish]

so, with all that engine sophistication and tunability, why can't tuners reduce lift and duration to stock cam specs below 4k and then ramp them up where these cams take over on making power? That would be the big win! makes me want to have a #8 failure and "have" to get a new engine in there

 

[sadil]

Cant wait until Wednesday evening

 

[captdistraction]

so, with all that engine sophistication and tunability, why can't tuners reduce lift and duration to stock cam specs below 4k and then ramp them up where these cams take over on making power? That would be the big win! makes me want to have a #8 failure and "have" to get a new engine in there

Unless I'm missing something, lift is dictated by the OD of the cam lobes. Variable lift is something we'll see in the future as engineers make direct valve operation more robust, but for now I don't think there's a way to do much other than phasing/adjustment of event timing.

 

[pufferfish]

Unless I'm missing something, lift is dictated by the OD of the cam lobes. Variable lift is something we'll see in the future as engineers make direct valve operation more robust, but for now I don't think there's a way to do much other than phasing/adjustment of event timing.

ah, you are correct sir. i thought it has variable lift as well. but its not jetsons technology. its here and now. some manufacturer has this feature in production already. can't remember who off hand.

that said, even with just the ability to shorten timing, you should be able to get close to mimicking the air movement charateristics of a cam with less lift. right?

 

[Rich_S]

The TI-VCT system can just change cam timing (advance/retard) it can't change lift or duration. But altering cam timing does allow you to change overlap, so you can have a larger lobe separation angle at low rpm and a smaller angle (more overlap) at higher rpm.

 

[NewBossowner]

Unless I'm missing something, lift is dictated by the OD of the cam lobes. Variable lift is something we'll see in the future as engineers make direct valve operation more robust, but for now I don't think there's a way to do much other than phasing/adjustment of event timing.

I believe it is Toyota that is playing around with electronic opening and closing of the valves with solenoids. That will give you what you are talking about, the cam timing, lift, duration, overlap and any other significant factors can be controlled by the computer and will be modifiable in a " tune " .

 

[pufferfish]

no, i believe its production stuff with mechanically actuated cams. if i remember right, there was some sort of variable squish lifter that was able to limit the cam lift being transmitted to the rocker arm and thus, to the valve. a lesser version is found with chrysler's hemi cylinder deactivation. it just fully collapses the lifter to make zero lift when the cylinder is shut down.

holy off topic batman! lets get back to making some sick power out of these mouse motors!

 

[racered302]

Sooo, did something bad happen with the new intake? This thread got mighty quite.

 

[Justin]

Sooo, did something bad happen with the new intake? This thread got mighty quite.

I dont think so. the intake is still not out I think that is the issue

 

[VoodooBoss]

I dont think so. the intake is still not out I think that is the issue

It's available but in limited quantities. A couple of members with a 302S have them installed.

 

[ford20]

I dont think so. the intake is still not out I think that is the issue

I have mine sitting in the trunk of my car ... Now all I need is an engine to put it on lol

 

[racered302]

475 with 390...leaving the car on Tuesday night for the CJ intake install.

This is what I was referring too.

 

[Justin]

what are people doing for a CAI elbow? does the one for a 2010 fit?

 

[DGRacing]

what are people doing for a CAI elbow? does the one for a 2010 fit?

I've been wondering about this myself...

 

[Bloodykisses]

If there is enough interest in making a Cold air induction system specific for the Cobra Jet Manifold swap, I can make a set up to market and all. Considering making a full swap kit everything including intake manifold to air filter.

 

[VoodooBoss]

If there is enough interest in making a Cold air induction system specific for the Cobra Jet Manifold swap, I can make a set up to market and all. Considering making a full swap kit everything including intake manifold to air filter.

Tell us more and who do you work with/for or what shop do you own?