benzslo

I'd be careful dis-assembling that intake. I would first manually fix the runners in the short position to see if it does anything different. Reason I say this is those manifolds are not recommended by MB to ever be taken apart. Many have tried and many have had vacuum leaks after, adding positive pressure won't help anything either.
Not saying it can't be done, but no need to create problems for no reason.

Lastly, makes sure to monitor what your knock sensors are doing. I've seen before problems just as you describe, pulls well initially but gets into the higher band and the power just drops off and often won't even shift to the next gear until you let off the gas. Due to the nature of how the knock sensor works, they can fail and will never set a fault code, but it will most definitely affect performance in the way I just described. Monitor your knock sensor voltage and also your ignition retard when making the pull. I'd first tie those flaps open though if you were previously not controlling them, that will most definitely affect the whole entire upper half of the powerband.

BI-Performance

Alright, the intake came completely gutted. There are no runners or plates that you guys are refering too.

We are talking to my bro Rbj to duplicate what his intake looks like. I dont see how having any runners at all, or plates can be beneficial other than creating alot of turbulence in the upeer rpm range around 5500-6000rpms. This is where we are having power plummet and breakup again.

RedBullJnky

Just talked to Tony.

Make sure he's got everything.

chawkins2001

What a baller

RedBullJnky

Not a problem brotha!

Can't wait til we get them side by side

Bramage

These last 3 posts were a little cryptic?


Any major breakthrough on the horizon?

BI-Performance

September WannaGoFast at Heavens Landing Bring Chad and Nemos sleds up to, they will surprise ALOT of folks up there.

TTE55

Any updated dyno numbers

BI-Performance

No sir, the intake has to come off and we have to get another one, since this thing is gutted.

Another small piece of information is that the kit deleted the factory oil cooler that is normally mounted upfront below the heat exchanger. I wonder how much that effected the oil temps, we may need to add that back into the system too.

TTE55

Text me craig I have the pieces that go inside the intake if you want. Save you a few bucks.

Also, yes the factory oil cooler was removed. The E55 does come with 2, so it may be fine only on one cooler but the larger one was removed. I removed the same oil cooler but went with an aftermarket one to make up for it. I didnt want to just drive around and see if it worked fine with just one lol.

blackbenzz

You didn't take the intake manifold I let you borrow apart did you? I thought you were giving that to Peter to build an intake manifold for you, not use it/take it apart. I was expecting to get it back the same way I gave it to you

TTE55

I have more than one. I had planned on giving yours back like we had originally talked about. In the same condition. You could of just shot me a text.

turbo97se

The intake manifold is set up like this:



There are flaps that essentially open and close making the path longer or shorter. B is longer path, A is shorter path

If your flaps are missing then that could be your issue, air turbulence going in both ways through A & B channels. Seal off one set and your problems will likely go away. Sealing off B would probably help with top end.

Below you can see the brass colored flaps:

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These pics are courtesy of link given in a post made by Rocketmullet. Take a look at his link in more detail.

Best of luck brotha!

blackbenzz

My phone is dead. Ok thanks

Max.H

Just my 2 cents. But that stock w210 or w211 E500 intake manifold does not look good to me.. Especially for what you guys are trying to do with it.

I know its easier said then done but, a custom intake manifold or something from the Mopar SRT8 intake manifold would seem like a much better option. It's big and the same shape as the ones you guys are using… Maybe the ports line up too. Or an aluminum adapter should work. Just a thought. GL!!

I think CLS55TT has a superb setup. Very well thought out and it looks and performs great!

RedBullJnky

This is what I did. and that's what he's doing.

chawkins2001

sending you a text paul, thanks to all the fellas.

turbo97se

Nice! I like this forum more and more … people sharing their knowledge with others. There are many that wouldn't.

Best of luck with your project too RBJ!

JoeNobody

The lower oil cooler was not present on early E55's, and was added mid year 2004. So perhaps going without it isn't such a big deal.

chawkins2001

good point Joe, forgot about that homey.

Joncl

Chawkins why don't you do the same thing as clstt? It's a proven method and works very very well!

blackbenzz

Hope you get this issue resolved. When you get to over 17.5PSI I have a brand new map clamp sitting here I hope you guys find a tuning solution around it because that will help many people

Bramage

What is the staus of this build? Did you guys give up, or is there behind the scenes R&D going on to isolate the issues?

BI-Performance

No, we know what the problem is Dane. The intake was just pulled off today, and we measured the long runner intake ports. We are having a machine shop cut the appropriate size flaps for each long runner port, so we can weld those on, and seal off the long runners.

Once that is complete, we will force the stock flaps open on the short runner ports, and will be done at that point. Elliott has this setup and it works great, so we dont anticipate any more issues with the intake.

RedBullJnky

Good job guys!