4" thick IC

[armandovivoni]

anyone ever put a 4" wide front mount intercooler? will it fit a 2g eclipse. dimensions are 31 x 12 x 4

 

[anconover]

dear lord, slightly overkill. Too big in my opinion but you may be able to stuff it in if u remove the entire bumper support and shave some off the bumper.

 

[blackGSX2g]

Yea that is a bit large...I thought mine was overkill and mine is 24x12x3. I had to cut the bumper support into 2 pieces, but I only had to trim an inch or so off of the corners of the opening of the bumper. If I were to cut another inch off of the corners, a 4'' thick core should fit. I can load pics of the bumper support if you want more explanation.

 

[karbon]

I think it'd be WAY too much of a pressure drop. Your turbo compressor outlet is probably only 2.25" wide. To go to 4" slows down the air a lot. You want to keep the air velocity up as it's moving throug the intake. I'd be reluctant to even go 3" if I wasn't pushing crazy high boost levels all the time.

 

[definitiveno]

I think it'd be WAY too much of a pressure drop. Your turbo compressor outlet is probably only 2.25" wide. To go to 4" slows down the air a lot. You want to keep the air velocity up as it's moving throug the intake. I'd be reluctant to even go 3" if I wasn't pushing crazy high boost levels all the time.

Width of the core is not the determining factor of air velocity, rather one of 3. Moving right along, air speed has absolutely no corralation to flow. Though your post was to say this intercooler was bad/not good for our application, the explinations used to support your ideas had zero founding to stand on.

You get a D for good E.

 

[karbon]

Width of the core is not the determining factor of air velocity, rather one of 3. Moving right along, air speed has absolutely no corralation to flow. Though your post was to say this intercooler was bad/not good for our application, the explinations used to support your ideas had zero founding to stand on.

If I said anything that was incorrect, set me straight. I don't want to spread misinformation. I was always under the impression that you want a balance between flow and velocity when choosing your intake piping size. I thought the poster was talking about intercoolers with 4" inlet and outlets. While the endtank design contributes to velocity, even though flow is not reduced and air speed is, I thought that it results in inefficiencies in the design regardless of the internal construction of the core itsself, since the air stream must merge in the endtank with X volume anyway. It makes sense in my head, but it seems like you might have some more experience with this so I'd like to hear it.

 

[definitiveno]

Damn it. You see I'm never any good at typing things out, like to explain how some thing works in full detail. The only thing I'm good for is finding inaccuracies in other peoples posts, it's quite rude actually.


Please forgive me

 

[doug]

I think maybe what you're trying to say is that boost pressure has very little effect on air velocity through the core?
http://www.are.com.au/techtalk/intecoolersMR.htm#Turbo Lag

 

[mntalon_05]

"Adding thickness to the core will indeed improve efficiency, but the gains become less and less. Another negative effeect is brought into play by increasing the thickness: the increasing difficulty of getting the ambient air to pass through the core. Essentially, then, the drag coefficient of the core goes up as thickness increases."
Maximum Boost by Corky Bell

A 4" core is way overkill. A couple pages before it says that ideal core thickness is 2" with 3" being used where frontal area is scarce and the small amount of efficiency that you gain from the extra thickness helps achieve the intercooling that you need.

 

[Turbocharged]

My core is 3.5" thick. I see no reason why you wouldnt be able to go with a 4" thick intercooler if you really wanted to. You are just going to be cutting more of the bumper.

 

[Game Over]

Too big, take it back. . 2 1/2 will do you fine but 3 inches will be good, and it's a little long too at 2 1/2 feet.

 

[armandovivoni]

thanks. I went with a 3" core. 31x12x3 from the turbo that its a t4/t3 .70 57 trim / .48 stage 3 i made 2 1/2 pipes to the intercooler. and from the intercooler to the 70mm throttlebody I went with 3" pipes. in neutral it makes 10psi. so Im guessing its good.