thomas188

Hey guys, I have got everything ready to finish now, well most of it :D...All turbo ppl will know exactly what im talking about when you think you are almost through after doing a "right" install.....Ok, I started running my piping and know that the new jdm amber foglights I have installed presents a problem with intercooler piping. My friend got his at the same time and he definately cant run them b/c he has a single side inlet outlet IC. Mine is dual side, as in inlet oneside and outlet the otherside so i dont have his problem as much....I noticed that 9 out of 10 ppl have to remove their fog lights...Anyways I think that I have come up with a solution, I know it can be done with piping, but I need to know if the drag it is going to cause is going to hurt my performance per say. I can have the piping come out of the cold side and run for 1.5-2.5" and make a 90 degree turn up and then a 90 degree turn back to continue original path way. I have a picture showing what I am talking about, it is really sloppy Im busy with work and dont feel like doing it in cad b/c thats what I do all day as the engineer of my company....But if it cant be deciphered I can do it in cad in like 20 or so mins...Just let me know....

preludedriva

damn lol

preludedriva

put your manifold and turbo on first i would presume then work from the turbo to to the IC on the driver side

thomas188

already done that, I have everything in the car. piping from intake to hole on passenger side, and turn hooked up all lines ran. I pulled engine out to paint the bay...anyways I have it all rdy just for the pipe by the foglights to retain the foglights.... I could have it through in less that an hour if I were to take out my foggies :'(...What would you recommend now?

preludedriva

if you already got it prefabbed to go around your fog lights go with it
if its too much trouble just ditch the fogs

thomas188

dont have it prefabed, but my cuz owns a muffler shop with a pip bender and can do the pipe for me. I want to retain the foglights thats why i posted I just want to know if the bends are going to slow my spool up greatly?

94Vtecluder

Are you worried about the aerodynamic charge of the pipes because they will be bent so much? Or are you talking about the aerodynamics of the entire car itself?

darkspector2.0

he's talking about the pipes

94Vtecluder

Well I don't know much about turbo's however my intuition would tell me that it doesn't really matter. Afterall it's a pressurized system. Also just think about it, the air has to snake thru the little vents on the FMIC, so I can't really see a cpl more bends in a 2inch pipe degrading performance that much more.

ethereal2pt2

im not much of an expert on turbos but if you're worried about the aerodynamics of the piping effecting the performance then wouldn't you consider making the piping less angular? air would travel easier thru the piping if the bendings weren't so abrupt. but even if you did i doubt it would cause that great of a difference in performance. if possible i'd try to bend it less than 90 degrees. get what i mean? that's just my two cents. woo hoo go physics..

PrecisionH23a

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by thomas188 &raquo;</TD></TR><TR><TD CLASS="quote">Im busy with work and dont feel like doing it in cad b/c thats what I do all day as the engineer of my company....</TD></TR></TABLE>

If you are a mechanical engineering then apply what you learned in your fluids and dynamics classes to the intercooler piping.

Flow and Efficiency are 2 words that come into mind.

thomas188

I am mechanical, hit the nail on the head... Going to good ole Auburn University here in Alabama...Only a sophmore and fluid dynamics comes next semester...oh well... But I understand the just of it, unfortunately it would have to be very close to 90 degrees to clear the foglights, anything less wouldnt clear the lights unless i get a 45 elbow coupling and use my 45 pipe to pull it down and eliminate the extra pipe...Just a lil gun shy on using a coupling without reinforcement for about 2.25"...I think I will just run the double 90 and call it a day. It's not like I will notice it really going from NA f22 to full boosted ~10psi....what do I have to lose

Hawkze_2.3

It won't make a big difference...I would worry more about the overall size of your pipes.

esedulerp5tenin

****, i'm gonna have this same exact problem w/ my jdm foggies too

grrrrrrr

ethereal2pt2

yeah best thing to do is try that out and see how it turns out. if you really wanted.. i doubt anyone would really go thru the trouble but you could try doing it your way and taking out the fog to fit it normally and see the difference. again the difference will be too slim to notice. let us know how that turns out. good luck. yay for custom fab.

thomas188

well i went to the muffler shop today and had them make me a double 90, actually they look closer to 80 but I will let you all know how it works. I do have the jdm bumper support so that might be a requirement for retaining foglighs becuase it is half as wide as the usdm. Starting to get excited

PrecisionH23a

Bending tubing that much causes it to 'crumple' on the inside. Thus creating a bottle-neck and turbulence in the flow of the compressed air.

thomas188

it didnt crimple i checked for it. it did go from a 2.5 pipe to 2" in the bend but that wont matter to much. no crimples

PrecisionH23a

Unless he had a mandrel bender, the walls of the pipe will not hold true uniform and wrinkle.

thomas188

thats exactly what i thought but they didnt crimple. They didnt hold true to there form as in a 2.5" diameter the whole way through, they shrunk to about 2 to 2.25" diameter but it didnt crease or get any wrinkles on the inside. I can feel up inside the bends and it is smoot and free of wrinkle. It might not be a true circle although it looks pretty damn close to eye, there is a possiblity that it is an elipse that i cant recognize. He took the one piece of pipe and made the 90 and the cut it off and bent another to 90 then cut it off. we linked the two together and cut some more to get my desired height of the pipe and welded. before we welded is when I checked for wrinkles and suck and they were not present. I know that it was not a mandrel bend, he told me that to and also said that no one in town had a mandrel bender. I will see how it flows and I might actually take off my foglights and see if I can see a difference with different piping. It will be a good "research" project.

Hawkze_2.3

Crush bent = crappy bends with lots of wrinkles

Compression bent = smooth bend but makes the pipe diameter smaller

Mandrel bent = smooth bend without compromising pipe size (duh )

darkspector2.0

you can also order mandrel bends online and cut them to size and weld them

Siegfried

If you don' t want to use 2 angles on your IC piping then find an intercooler that have the inlet & oulet located higher or you can use a water/air intercooler instead of FMIC.
The cheapest way will be to make angles on your piping so you can fit your foglights or the easier would be to remove them
Here's an idea for to reduce the angle, you can reduce the outlet lenght and have the angled tube weld closer to the intercooler with the angle beginning next to the weld so you can lower the angle, like this:
http://img75.imageshack.us/my.php?image=ichm0.jpg
Pics of your car with bumper and bumperless with the FMIC on would help, to see the space available between foglights and your IC

92blkJDMh22

"..... if we have to, overnight parts from japan...."

"wow jessy, you should be going to MIT or something......"

did that drawing make anyone else think about the F&F?