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Old 04-07-2002, 09:10 PM
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Default intercooler piping>?

Any good places to buy intercooler piping at, i want to redo mine, i am upgrading my bov and i heard its best to place it like 15" from the TB does that sounds right? TIA
Old 04-09-2002, 01:43 PM
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Default Re: intercooler piping>? (Pro-Lude)

Don't know about the 15". Why do you want to upgrade? Larger pipes?
Old 04-09-2002, 02:01 PM
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Default Re: intercooler piping>? (Pro-Lude)

I can imagine that the best size for your post-intercooler pipes would be the same size as your TB. I don't know thats fact, just guessing.
I don't think it really matters where you put your BOV. The shorter the vacume line to the bov I think would have it working faster.
Old 04-09-2002, 07:44 PM
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Default Re: intercooler piping>? (voltronR34)

I can imagine that the best size for your post-intercooler pipes would be the same size as your TB. I don't know thats fact, just guessing.
I don't think it really matters where you put your BOV. The shorter the vacume line to the bov I think would have it working faster.
The vaccume "signal" will travel down the vaccume line at the speed of sound, so length of the line doesn't matter.
Old 04-09-2002, 07:47 PM
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Default Re: intercooler piping>? (94hondahybrid)

what does it say in the book?
Old 04-09-2002, 07:56 PM
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Default Re: intercooler piping>? (94hondahybrid)

i would like to know that formula also. im about to upgrade my intercooler pipings but i dont know what the biggest size i can go.
Old 04-09-2002, 09:11 PM
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Default Re: intercooler piping>? (JiSATSU RaceR)

Bigger is not always better. I'll be using 2" for my 1.6 liter motor with ~6-8 psi boost.


[Modified by TurboSi, 6:47 AM 4/10/2002]
Old 04-09-2002, 09:35 PM
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Default Re: intercooler piping>? (TurboSi)

well, i kinda got lost of what u were saying. im using 84mm gsr, 10.1:1 compression, XS engineering T3/T04X turbo, XS engineering GTR intercooler and my pipings are only 2.25in. im thinking about going to 2.75in. but i dont know if it's too big. any suggestions from the experts?
Old 04-09-2002, 11:15 PM
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Default Re: intercooler piping>? (JiSATSU RaceR)

Old 04-10-2002, 02:10 AM
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Default Re: intercooler piping>? (Sayang)

the formula for figuring out ideal pipe diameter is on pg 80-81 of "the book"

it is :

velocity = airflow rate / area of section

it's a lot more complicated than it looks...I helped somebody with this a couple of days ago. I ended up drawing the entire sample calculation out of pg 81 of "the book", in JPEG format.

If someone has server space for a 40 KB jpeg of the whole calculation I can e-mail it to you, that way you can post it for everyone to see. I would post the pic myself but I cant find any free pic hosting sites.


[Modified by BlueShadow, 11:12 AM 4/10/2002]
Old 04-10-2002, 03:16 AM
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Default Re: intercooler piping>? (BlueShadow)

I found a free pic hosting site, lets see how fast we can use up the bandwidth :D

This is out of Maximum Boost pg 81.

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