Garrett BB Compound turbos
#16
The Guru
Join Date: Jan 2004
Location: Airdrie Canada
Posts: 6,589
Likes: 0
Received 0 Likes
on
0 Posts
I put a BTH-3b under a GT3782R. It worked pretty good and the 3b is a cheap turbo for around $600. You can find all the fitting easy and save some $$$. I had an old PDR HX40/3B twins st-up. I just dumped the HX-40 and put in a garrett3782R. Its a easy swap and it was far cheaper than $6k. I have about 15000 miles on the new twin set-up. I paid $1600 for the garrett and got two turbo flanges made at a local machine shop. If you already have the garrett, either a S400 or BTH-3B would make a nice primary for it.
#17
Your right that would be the cheaper way to go. But if im going to spend the money on a compound set up I might as well go all the way and have a true BB compound instead of one true BB turbo and have the big turbo be a standrd turbo. But it sounds like you do have a real nice set up.
#19
The Guru
Join Date: Jan 2004
Location: Airdrie Canada
Posts: 6,589
Likes: 0
Received 0 Likes
on
0 Posts
So far everything is better than the HX-40. It improved the power band in the mid range. The turbine doesn't seem to choke as much as the Hx-40 did. It spools a lot faster than the HX-40. The top end is way stronger and my rear bumper isn't covered with soot any more. The only down side is that its more $$$ than the HX-40 and its harder on tires. I have spool-up that would be comparable to a HX-35 and way more stronger power band. You can pull 50 psi in seconds. I've only barked it a few times. The egt's are down 150 deg's from HX40/3b combo. Yes, the garrett twin set-up is the sweet deal, but at $6k, that tons of $$$. You could build mine for about half that. A garrett stage 3 on a S480 would be a nice street set-up.
#22
Registered User
Join Date: Apr 2003
Location: Cummins Technical Center, IN
Posts: 6,564
Likes: 0
Received 6 Likes
on
5 Posts
Personally, I think you get a better bang/buck by only going with one BB turbo, and the other be a regular journal bearing.
For example, you could either do a stock charger over a BB primary, or a BB Garrett on top of a cheaper HT3b or S400 charger. Either would perform better than a typical setup, imo.
It's probably cheaper to go BB on top than on bottom, but going BB on bottom probably gives better overall performance.
For example, you could either do a stock charger over a BB primary, or a BB Garrett on top of a cheaper HT3b or S400 charger. Either would perform better than a typical setup, imo.
It's probably cheaper to go BB on top than on bottom, but going BB on bottom probably gives better overall performance.
#23
#24
Personally, I think you get a better bang/buck by only going with one BB turbo, and the other be a regular journal bearing.
For example, you could either do a stock charger over a BB primary, or a BB Garrett on top of a cheaper HT3b or S400 charger. Either would perform better than a typical setup, imo.
It's probably cheaper to go BB on top than on bottom, but going BB on bottom probably gives better overall performance.
For example, you could either do a stock charger over a BB primary, or a BB Garrett on top of a cheaper HT3b or S400 charger. Either would perform better than a typical setup, imo.
It's probably cheaper to go BB on top than on bottom, but going BB on bottom probably gives better overall performance.
#25
The Guru
Join Date: Jan 2004
Location: Airdrie Canada
Posts: 6,589
Likes: 0
Received 0 Likes
on
0 Posts
Cool, just confirming. One day the samething might happen to me. If you want to save $$$, just go with the common journal bearing turbos i.e. BTH-3B or the S-400 stuff. At the end of the day, how often do you really push the primary. If you just drag racing/sled pulling, that's different, but most of us still drive the old girl for/to work. At $600 a piece, its easy to survive with a cheap primary turbo. Of course the more expensive primary would just spoil ya and put a big smile on your face on those WOT pulls.
#26
Personally, I think you get a better bang/buck by only going with one BB turbo, and the other be a regular journal bearing.
For example, you could either do a stock charger over a BB primary, or a BB Garrett on top of a cheaper HT3b or S400 charger. Either would perform better than a typical setup, imo.
It's probably cheaper to go BB on top than on bottom, but going BB on bottom probably gives better overall performance.
For example, you could either do a stock charger over a BB primary, or a BB Garrett on top of a cheaper HT3b or S400 charger. Either would perform better than a typical setup, imo.
It's probably cheaper to go BB on top than on bottom, but going BB on bottom probably gives better overall performance.
This ? applies to you to Mike!
#27
Cool, just confirming. One day the samething might happen to me. If you want to save $$$, just go with the common journal bearing turbos i.e. BTH-3B or the S-400 stuff. At the end of the day, how often do you really push the primary. If you just drag racing/sled pulling, that's different, but most of us still drive the old girl for/to work. At $600 a piece, its easy to survive with a cheap primary turbo. Of course the more expensive primary would just spoil ya and put a big smile on your face on those WOT pulls.
Thread
Thread Starter
Forum
Replies
Last Post
dditt0635004x4
3rd Gen High Performance and Accessories (5.9L Only)
13
02-07-2007 12:36 PM
Robert Venable
Performance and Accessories 2nd gen only
34
12-11-2003 03:17 AM