ML500K

+1 Max Boost was 20PSI with EC headers.

SilverBulletAMG

That's also the highest I've seen (just under 21psi) with my setup.

jturkel

well i know for a fact that I was told by Wayne and Jake that, because of the 91 octane I run out here, I was given a more conservative tune. i'm guessing that means that timing was not advanced as much so detonation is less of a risk with my lower octane fuel.....so it is safer. i would assume that affects boost levels.

RLx02

Is it just me or isn't the temperature of pre-compressed air not as important as the volume of air? With turbos, it was about getting more air to the turbo, rather than cold air because compressing air would make it hot anyway; hence the intercooler before going into the intake manifold.

320 dreamer

both are equally important. on these engines the i/c is located under the s/c and has cooling capacity issues. getting cold air to the s/c aids in keeping the ecu from shuting it down due to excessive high iat's.

the more air the better the colder the better

TemjinX2

the temperature only matters when it comes to air density. when it actually goes into the engine and is combusted, it doesn't matter.

But cold air is more dense, therefore has more air molecules then hot air.

RLx02

Thats what I mean. Everyone knows cold air has more o2 molecules and that the temperature of the air only matters when going to the intake manifold. But doesn't the supercharger compress the air into a state hot enough that the difference between a CAI and a regular intake is not worth the effort?

When I had my turbo eclipse, no one really cared about CAI because the compressed air was a) getting hot from compression and b) running next to the exhaust manifold anyways. The important part was to make sure that the intercooler was big enough to drop temps and had no leaks under boost.

So, wouldn't it make more sense to try to upgrade the intercooler on a c32 rather than try to reduce the temperature of the air pre-supercharger? Or is it only to stop throwing codes for getting too hot?

320 dreamer

the intercooler sits underneath the s/c in the v of the top of the engine. to date the only intercooler replacement was a c3 and it was short lived. as far as i know there isnt any other ic available so we have to work with what we have.
thats why we concentrate so much on cooling mods colder air and proper tunes. the guys with the 185 have much more cooling issues than us with just a c3 . as in return we dont make as much power as they do. its a delicate dance!

c32AMG-DTM

Makes sense; certainly a prudent move by your tuner for your specific situation Agree with this also - that's what I would guess too. I'm certainly no expert (and would appreciate anyone's input) but I think your assumption here is wrong. The boost your car would experience and you'd measure is dependent on the SC rpm's, load, intake/cyl head/exhaust work, and atmospheric conditions (temp, altitude, DA, etc.). I'm 99% sure the measured/recorded boost on our S/C'd motor is independent of ECU tune and/or fuel. FWIW, I datalogged ~21 psi boost back when I had the 181mm pulley, LET headers, and tune - at the top of 3rd on a a cool, dry night at the track (guesstimate of zero or negative DA).

OP - sorry for the off-topic banter.

TemjinX2

eh we can go on with this forever. i'm interested in the results once the op finishes his intake.

gt4awd

Guess some photographs would be good so we can compare before, and after... No more progress as of yet, but hopefully get some work done tomorrow. Took these on my phone, so not the best quality ever.

W203Ramos

can't wait to see the end product

gt4awd

I came up with a completely sealed design today. You won't be able to see the filters anymore, but with an acrylic tube you would. The setup will have 4" tube leading from the air ram ports to the filter enclosure. Found all of this at Lowes. Home Depot, and the other stores don't seem to carry 6" PVC. Of course, you could just use smaller filters. Cost for everything will be slightly over $100 dollars, so we're looking at a total cost of around $170 now. Basically the 6" PVC will be the filter enclosure. Then 6"x4" couplers to 4" flexible tubing. 4"x4" coupler for the tubing to air ports. Hoping to get it thrown together tonight, and I'll be able to post up some photographs after work tomorrow...

4" flexible tubing
2x 4"x4" coupler
2x 6"x4" coupler
2x 6" PVC or acrylic section

W203Ramos

THAT'LL LOOK SICK BRO!!! hope you could post pics asap!!!

gt4awd

I really would prefer the filters being visible, and will most likely buy some acrylic tubes down the road, but this is going to work great for now. Just throwing it together tonight, but I will also paint everything later on. After some debate it was decided the only possible way for a cold air supply, even at idle, was with a sealed system. So, it will have increased air flow, more horsepower, no heating issues, and the filters are reusable. Considering the total cost so far I think it's worth it. Now lets see if it will work, so I'm off to the cold garage for a few hours...

SilverBulletAMG

Its starting to sound a lot like the LET/EC intake, which has shown pretty good gains. Should be a pretty good setup when you're done.
Before you paint everything, I would suggest covering everything with heat wrap and then paint over top of that.

320 dreamer

if you check my thread on srt-6 forum i built a similar setup using the oem boxes and ram air for under 200$

gt4awd

Any suggestions for a cheap but good heat wrap? There's some at autozone, it cost $20, and doesn't come with much... The main difference between this setup, and LET/EC is where I have the filters located.
Could you post a link please?

So, here's the update... Turns out there wasn't enough room in the engine bay to fit that huge coupler. The hood wouldn't shut... It did look like two huge turbos almost. All that stuff will be returned. I have a new plan now that is a lot cheaper. I'm just going to cut, and place an end cap on the open side of the pvc enclosures with an opening for the air ports. Thinking around 3" tubing should be good enough... Not sure what the end result will be, but I'm off to find another solution.

320 dreamer

heres my thread. if you arent reg. you may not be able to see the pics. i can email them if you need. this setup uses the oem airboxes and then all custom parts from there. ill be adding the sl55 intakes when they come in. disregard the c3 style filter at the intake. i tried it but to much hot air and lost power. the cold air is better http://www.crossfireforum.org/forum/...take-mods.html

gt4awd

I remember reading that now... Looks really nice! This is what I came up with for new supplies. I'm going to be using a 6"x4" metal adapter, and 4" metal ducting. The metal coupler will work because it isn't half an inch thick on each side, and I can bend that ducting unlike the plastic tubing I bought at first... The stuff cost around $30 dollars at Lowes, so we're right below $100 in total supplies. I really wanted to avoid using metal at first, but I still have that thick PVC heat shield right at the filters where it heats up the most.

gt4awd

So, how's the intake look so far? It's 100% now except for additional heat shield material, and top it off with a nice paint job. It almost looks like overkill. I could see this intake on a 1000HP supra...

TemjinX2

wouldn't cost you about the same amount if you just bought something like this?

http://cgi.ebay.com/ebaymotors/ws/eB...t_11717wt_1008

the yellow version is $80.

ML500K

Nice carbon box! Wonder if that will fit...

c32AMG-DTM

Do they get crushed a bit when the hood closes?

///AMG4EVER

Not bad at all...