CP-E Intake manifold

[maisonvi]

Originally Posted by rfinkle2 That and the first version was tested and had a problem related to the metal used. Good to see that they are patient as to release and making sure this thing is 100% ready to go before any of us install it.

With the lynching that happens around here, I would be triple checking things too.

[superskaterxes]

Originally Posted by rfinkle2 That and the first version was tested and had a problem related to the metal used. Good to see that they are patient as to release and making sure this thing is 100% ready to go before any of us install it.

there actually wasent a problem with the metal at all. Whenever you cast something there is always a shrinkage factor to the metal when it cools. CPE was smart enough to make the mold a little smaller for the first casting so that if the manifold shrunk too much they could just remove a little bit of material from the mold to make the casting larger rather then having to pay another 15k+ to make another mold haha

[www.cp-e.com]

Sorry for the delayed responce on this.
The manifold is Cast aluminum.
This will come pre-machined for port injection, you will also have the option to have the hole predrilled or with break away holes incase you want to do PI later on down the road.

[rfinkle2]

Originally Posted by superskaterxes there actually wasent a problem with the metal at all. Whenever you cast something there is always a shrinkage factor to the metal when it cools. CPE was smart enough to make the mold a little smaller for the first casting so that if the manifold shrunk too much they could just remove a little bit of material from the mold to make the casting larger rather then having to pay another 15k+ to make another mold haha

I learned something today. Thanks superskaterxes!

[RichieRichness]

Originally Posted by Celestspeed3 1. Will flow data for the manifold be published compared to the stock manifold? 2. Will the manifold be bundled with a port injection kit? 3. What is the opening size of the TB mounting flange (is it compatible with 3" TB's)? 4. Has the manifold been pressure tested? If so to what? 5. What's the weight of this manifold compared to stock? 6. Why was the throttle position changed? 7. Will this manifold bring me the women? 8. How do the runner lengths compare to the stock ones? 9. What is the plenum volume of the manifold compared to stock? 10. Will the manifold come with new intercooler piping or is that up to the buyer? 11. Is this manifold TMIC compatible? I think that's about everything people want to know.

email sent...waiting on response

[Tokay444]

I need to open a mold shop.

[Celestspeed3]

Originally Posted by Tokay444 I need to open a mold shop.

Start with dildos!

Then after a while. . . . some car parts.

[Ziggo]

Some of those lost wax molds are really complex. They go together and come apart like puzzle pieces it's a cool process to watch.



Zigatapatalka

[86AmishMs3]

Should be easy to clean the intake runners.

[Enki]

Originally Posted by Ziggo Some of those lost wax molds are really complex. They go together and come apart like puzzle pieces it's a cool process to watch.

Lost Wax Casting Process - YouTube

Lost Wax Casting Process - YouTube

[Chimmike]

Originally Posted by 86AmishMs3 Should be easy to clean the intake runners.

I've read engineering arguments that the non-smooth surface is actually conducive to flow with less turbulence, for whatever reason.

ultimately if they really wanted to offer it, I bet extrude honing the mani lightly would smooth the inside pretty quick and nice.

[Voltwings]

When i had my 6th port hooked up, even spraying just 93 i was able to push my tune further than on the stock fuel system alone because the fuel acted like a methanol of sorts, i could see my BAT's dropping (or drop) during a pull. I have a feeling with setups like this, its "almost" the same as direct port methanol, and we may start seeing 400+ whp cars on 93 alone (mid sized turbos mind you, gt30 frame and the like). With that being said however, spraying fuel in a 6th port fashion gives it time to mix with the air in the plenum and likely is the reason for most of the cooling, sprayed directly at the combustion chamber like this... could we expect any real difference on 93 only? E85 is great and all, but i would love to improve effeciency on 93 alone, the less we need to rely on E, the better.

[Tokay444]

Originally Posted by gingermike I've read engineering arguments that the non-smooth surface is actually conducive to flow with less turbulence, for whatever reason. ultimately if they really wanted to offer it, I bet extrude honing the mani lightly would smooth the inside pretty quick and nice.

it's the old golf ball effect. a boundary layer of turbulent air stays close the to walls, while faster smoother flowing air is allowed to slip past unimpeded. if there were no turbulence near the surfaces, it would just create drag and slow the velocity of the smooth flowing air.

[Ziggo]

Its a bunch of hokey. The flow in the runners is turbulent anyhow. Same as the mass flow straighteners. They don't straighten anything, they actually increase the turbulence and reduce the entrance length of the pipe in front of the MAF.

Zigatapatalka

[Tomas]

There is no laminar flow anywhere past the compressor wheel of the turbo.

[Tokay444]

Why is that? Simply because of air velocity?

[Tomas]

Becuz tehrbolenz.

Wikipedia (Links)

Boundary_layer

[Lex]

Originally Posted by Tomas There is no laminar flow anywhere past the compressor wheel of the turbo.

There isn't any laminar flow even in front of the turbo in the intake.

[Tokay444]

Becuz sucky sucky.

[Tomas]

That depends on your intake.

[Chimmike]

There should certainly be a boundary layer even after the compressor, velocity and pressure shouldn't change that, but why wouldn't there be laminar flow?

[Oni]

quick, someone calculate the Reynold's Number!

[Ziggo]

Originally Posted by Tomas That depends on your intake.

It better be turbulent at the MAF. If there is an intake that is laminar in places at idle, it sure isn't at WOT anyway.

Zigatapatalka

[Etipp98]

With the amount of bends and offsets in our setups, it is almost impossible to get any sort of laminarity. Hell, even in a controllable environment such as a clean room, many tweaks are needed to get laminar flow across tables and other equipment. If all the piping was completely straight and had honeycombs along the line you would have a chance.

[86AmishMs3]

Did someone ask for a flow guru? I'll out Navier Stokes anyone here!

Anyways MAF/laminar/turbulent flow have been discussed ad nauseum. You want turbulent flow at the MAF. You want a flat velocity profile, laminar flow does not provide a flat velocity profile.

[Ziggo]

I dunno about navier stokes, but somebody said spreadsheet!

https://docs.google.com/spreadsheet/...&usp=drive_web

[86AmishMs3]

Originally Posted by Ziggo I dunno about navier stokes, but somebody said spreadsheet! https://docs.google.com/spreadsheet/...&usp=drive_web

Don't forget who helped you get an equation right

MAF Airflow Straightener Testing

[Tomas]

I am getting me one of these so I can haz teh laminarz



Laminar Flow Archives | Meriam

[WhiteWidow]

Nice

[RichieRichness]

Originally Posted by RichieRichness email sent...waiting on response

Originally Posted by www.cp-e.com Sorry for the delayed responce on this. The manifold is Cast aluminum. This will come pre-machined for port injection, you will also have the option to have the hole predrilled or with break away holes incase you want to do PI later on down the road.

This was CP-e's response and all they will answer right now. Apparently they will be putting together a white paper with all kinds of detailed info. Sorry to disappoint.

[Tokay444]

will it be like corksport's white paper on their pump internals?

[Chimmike]

Fortunately intake mani data can be more easily gathered via flow bench.

[Tokay444]

Of which I'll have soon.
Made my helgesen plate a while back.

[Matt H.]

HAHAHAHAHA My intake valves are ready to open to the short unrestricted path of your port. Your plenum is ready to be filled by the opening of my throttle plate. And how could i forget your injector bosses will be filled as i will be able to squart in eight different places to fulfill my power goodness. kinky oh yes the first proper install of this mani will be kinky as fuck and if it is not posted on this thread well i will come to your front door and pu at 30PSI LOL

[hnda etr]

Originally Posted by Matt H. HAHAHAHAHA My intake valves are ready to open to the short unrestricted path of your port. Your plenum is ready to be filled by the opening of my throttle plate. And how could i forget your injector bosses will be filled as i will be able to squart in eight different places to fulfill my power goodness. kinky oh yes the first proper install of this mani will be kinky as fuck and if it is not posted on this thread well i will come to your front door and pu at 30PSI LOL

can you hold it for 2 weeks?

[derek13p]

Sell me this tomorrow for 20% off!

[Matt H.]

Originally Posted by derek13p Sell me this tomorrow for 20% off!

^^^^WHAT THIS GUY SAID^^^^

[Alpha]

Mmmm... Velocity stacks

[derek13p]

Soooo @www.cp-e.com; bout to need a manifold in a few weeks. Y'all gonna get my money or what?

[mrmonk7663]

No shit...I've been holding off on the JMF for this CPE but im about to say fuck it and just get the JMF.