Engine/Transmission (1998.5 - 2002) Intellectual turbo lag regarding turbos...

[JyRO]

Howdy fellers!



I've been on here for a while, but somehow I've managed to miss all the details about which trucks or which years have what turbos. I think my truck (see sig) has the HX-35. But for all I know, it could have a Mig-20



What different turbos have come out of the factory on our trucks, on which year trucks, and what are the differences between them (design & performance)? Thanks!



- JyRO

 

[John_P]

JyRO:



Issue #38 of the TDR had a "breakdown" of the different

turbos installed on the Dodge CTD's from 1989 to 2001.

Here is a "reprint" of what they had listed:



1989-1991. 5 - Holset WH1 Turbo with 18. 5 cm housings

1991. 5-1992 - Holset WH1 Turbo with 21cm housings

1993 - Holset WH1 Turbo with 18. 5cm housings

1994-2000 - Holset HX-35 Turbo with 12cm housings

2001 ETC - Holset HY-35 Turbo with 9&10cm housings

2001 ETH - Holset HX-35 Turbo with 12cm housings



Hope this has helped you some.



---------

John_P

 

[Cummins4Life]

http://www.dodgeram.org/tech/dsl/FAQ/turbo_faq.htm





Did the 01-02 ETC 5spd have the HY or HX.

 

[Steve St.Laurent]

Only the autos ever got the HY - the 5 speeds never did.

 

[Rammin On]

There are also some WH1C and H1C turbos on 94-95 trucks ... ...

 

[JyRO]

What performance difference does the different housing sizes make? I'm guessing more turbo lag with bigger housings, but more total boost with bigger housings. Is that right? What exactly is the housing? Is it the diameter of the turbo feed?



Lastly, is the difference between the HY & HX merely the housing size, or is there more? Now I'm going to go read the posted link. Maybe that'll answer some of these questions. Thanks for the replies guys!



- JyRO

 

[TxDieselKid]

Originally posted by JyRO

Lastly, is the difference between the HY & HX merely the housing size, or is there more? Now I'm going to go read the posted link. Maybe that'll answer some of these questions. Thanks for the replies guys!



- JyRO

The compressior side of the HY is a tiny bit smaller then the HX from what I can tell looking at the turbos side bye side.





Andrew

 

[Midnite]

Originally posted by John_P



1989-1991. 5 - Holset WH1 Turbo with 18. 5 cm housings

1991. 5-1992 - Holset WH1 Turbo with 21cm housings

1993 - Holset WH1 Turbo with 18. 5cm housings

I always thought the "W" designated a wastegated turbo--is that not the case?



Mike

 

[Diesel Freak]

Originally posted by John_P

JyRO:



Issue #38 of the TDR had a "breakdown" of the different

turbos installed on the Dodge CTD's from 1989 to 2001.

Here is a "reprint" of what they had listed:





2001 ETH - Holset HX-35 Turbo with 12cm housings



Hope this has helped you some.



---------

John_P

Cummins made a mistake on my ETH... I has a 14 cm housing.