[Clap135]

Originally Posted by Imperator

Is it possible that reading comprehension is not your strong suit? The car is a 135i.. it has a different air box.

Actually, i don't think it does.

[Alext]

A lot of people (including myself) find that going back to the factory system feels better than the DCI especially in traffic. As Mr.5 says unless you are doing a one-time pass down a drag strip then the factory intake will give you more consistency.

[bimmerboy]

Originally Posted by Imperator

Is it possible that reading comprehension is not your strong suit? The car is a 135i.. it has a different air box.

Both have the exact same engine (n54/55) including air-box. Whats up with the attitude?

[CICIO]

Originally Posted by possible335i2008

Happen to have those dynos...or any other proof...both Vishnu and terry and countless other intake manufacturers have shown countless other dynos to prove the contrary..please bring proof and numbers to back up your claims everyone else has. Plus Mr 5's intake modifications show to be better plus the almighty dinan system, I understand that inflating numbers or downing other products are part of business but the one thing everyone has agreed on is that an intake is necessary for higher than stock boost. Hell people have done flow benches of the stock intake, sorry man wrong hornets nest

I have no desire to stir a hornets nest.

I could show you two graphs that are the same power levels as proof LOL

As you said most of the tests are done by the intake manufactures. The factory box will also withstand heat in the engine bay a lot better.

Anyway, another discussion for another thread.

[possible335i2008]

[QUOTE=Imperator;8646348]Is it possible that reading comprehension is not your strong suit? The car is a 135i.. it has a different air box.

Ok genius look at the airboxs, the only difference in the 135i is the sound muffler which some newer 335i's have. If the only contribution you can have in the discussion is to point out the fact that you don't know jack stay out of it this is for bigboys not fanboys. I asked valid questions and requested valid information, I have been on this forum for several years so please excuse my inability to believe everything told to me.

[vasillalov]

Hahaha. Slowly but surely, this community will begin to wake up and see the light:

* Stock airboxes are generally well designed and provide much more consistent results. This is true for most Euro cars.
* ECU reflash is the way to go. ( I know people would love to argue all day and night on this, but they are in denial...)

Peace fellas!

[possible335i2008]

Originally Posted by Cicio@TopSpeed

I have no desire to stir a hornets nest.

I could show you two graphs that are the same power levels as proof LOL

As you said most of the tests are done by the intake manufactures. The factory box will also withstand heat in the engine bay a lot better.

Anyway, another discussion for another thread.

That would be awesome hell keeping the stock box in would be great for me less to return to stock for dealership visits..but there are several graphs proving the contrary so explanations from all sides would be nice...plus all the intake shoot-offs showing intakes to fair better. You should start another thread maybe shiv can chime in he I believe is a pretty firm believer in the dci and with all his years of experience with the n54 he could probably give you a good counter argument.

[boom]

I really wish someone would post a graph with afr. I'd really love a BT log of timing as well.

[mithiral67]

Originally Posted by boom

I really wish someone would post a graph with afr. I'd really love a BT log of timing as well.

Heres a xi on thier http://cobbtuning.com/dyno site. You can at least see the afrs

[Imperator]

Originally Posted by boom

I really wish someone would post a graph with afr. I'd really love a BT log of timing as well.

I should be able to post mine next week when I get the data. AFR was around 11.5:1 from 2800 - 6500.

[possible335i2008]

Originally Posted by Imperator

I should be able to post mine next week when I get the data. AFR was around 11.5:1 from 2800 - 6500.

Don't you have a different airbox than a 135 though...jk any concrete data would be a benefit to the community.

[Imperator]

Originally Posted by possible335i2008

Don't you have a different airbox than a 135 though...jk any concrete data would be a benefit to the community.

I really thought the airbox design was different between the cars like it is with the N55. I wish I could scan the dyno printout that I received from Cobb but it left off the AFR plot on the tuned run. I made a later pass but that plot is still on their shop computer.

[Jeff@TopGearSolutions]

Originally Posted by Cicio@TopSpeed

lol...its a common misconception actually. I was running my 135 on the dyno at 17.5 PSI for some testing...we bolted on an intake system and the car made ZERO power The factory box is very very well designed.

don't shoot the messenger

Dynos dont represent real world air flow, which is the only down fall for this particular argument.

I would agree that a heat soaked vehicle would be better off on stock intake, however going 80 MPH, its possible to have different results.... keyword possible.

In the sake of bouncing back and forth I will just agree to disagree.

[slade1274]

[Mr. 5]

Originally Posted by Cicio@TopSpeed

lol...its a common misconception actually. I was running my 135 on the dyno at 17.5 PSI for some testing...we bolted on an intake system and the car made ZERO power The factory box is very very well designed.

don't shoot the messenger

Actually, if you log the wastegate duty cycles, you will find that it's harder on the turbos to run high psi like that with the stock air box rather than a DCI or something less restricting.

You're right, the stock air box might be able to get the power, but the turbos have to work a lot harder. It's a fact. I've done the logging.

[CICIO]

Originally Posted by Mr. 5

Actually, if you log the wastegate duty cycles, you will find that it's harder on the turbos to run high psi like that with the stock air box rather than a DCI or something less restricting.

You're right, the stock air box might be able to get the power, but the turbos have to work a lot harder. It's a fact. I've done the logging.

I will start another thread next time I have the car on the dyno....we can talk about this there.

Thanks for the input guys

~Cicio

[Down_Shift]

This is sick. Cobb is taking over the world!!

[Penn999]

Why do you use STD and not SAE, just curious as it yields the most power of the few dynojet readings??

[Slidewayz]

This doesn't look any better than the PROcede and JBx on 93 octane...what makes this 'better' ?

[PKumarM3]

Originally Posted by Slidewayz

This doesn't look any better than the PROcede and JBx on 93 octane...what makes this 'better' ?

looks better

[**335i**]

we need to know what mods there were on v5 (if v5 car was stock and no dci then i understand cos with dci u add more hp) and what mods on cobb car (with dci or without)

[CICIO]

I can post SAE if you like...it was only like 5 whp differnt if I remember.

The car we dynoed was bone stock.

The reasons it is better than a piggyback have already been stated.

Thanks guys

~Cicio