Why the HY turbo was used on 2001 autos..... - Diesel Truck Forum - TheDieselGarage.com
Thread Details Posted by Deezle1, this thread has received 0 replies and been viewed 1367 times.

 
LinkBack Thread Tools Display Modes
post #1 of 1 (permalink) Old 12-21-2005, 09:39 PM Thread Starter
 
Join Date: Jun 2005
Posts: 2,352
Points: 18,491
Thanks: 0
Thanked 0 Times in 0 Posts
Why the HY turbo was used on 2001 autos.....

A truck with an automatic transmission has to meet soot emissions standards when torque converter slip allows the engine accelerate quickly. This does not usually happen with a manual transmission because for the engine speed to increase, the truck must accelerate - and that takes time. The HY-35 builds boost a little more quickly than the HX-35 does when the engine load is light, so from an emissions standpoint the HY-35 is better suited to stop-and-go driving with an automatic transmission.

FWIW: The HY-35 and HX-35 are functionally equivalent under most engine loads, and the wastegates on both turbos are set for the same boost level. The HY-35 does not breathe as well as the HX-35 at higher speeds under a heavy load. The choke point of the HX35 is around 35psi; the HY35 chokes at about 29psi.
Deezle1 is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Diesel Truck Forum - TheDieselGarage.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome