[Diy_efi] Intake pipe sizing

[Grant Beaty]

Thanks, but if the turbo's inducer is smaller than the intake pipe, what
does it matter? I'm just trying to figure out why people run around with 4"
intake pipes.

Grant

-----Original Message-----
From: Eric Fahlgren <eric.fahlgren at mscsoftware.com>
To: diy_efi at diy-efi.org <diy_efi at diy-efi.org>
Date: Friday, October 18, 2002 1:23 PM
Subject: Re: [Diy_efi] Intake pipe sizing


>Grant Beaty wrote:
>
>> Is there any point to having an intake pipe larger than the turbo's
inducer?
>> My intake pipe is 3", my T66 has a 2.6" inducer, and I am trying to
minimize
>> the vacuum in the pipe.
>
>Yes, the intake flow is usually in a high Reynolds number region,
>so there is every reason to make the pipe before the turbo as big
>as possible (after the turbo you've got other considerations, too).
>
>Here's a quick little javascript that might shed some light (read
>the page source for equations and such):
>
>   http://not2fast.gotdns.com/turbo/velocity.html
>
>_______________________________________________
>Diy_efi mailing list
>Diy_efi at diy-efi.org
>http://www.diy-efi.org/mailman/listinfo/diy_efi


_______________________________________________
Diy_efi mailing list
Diy_efi at diy-efi.org
http://www.diy-efi.org/mailman/listinfo/diy_efi