I'm thinkning of trying to make some twins at a low budget. I have a HTT stage 4 that i think would be a good top turbo?

Anyway i wonna know what everyone runs for a bottom turbo on a twins setup....

Anything be found at the big truck junkyards? HX-50's?

Bill, you know what can be found at junkyards, share the knowledge

Jeff

 

HT3B's are the most common bottom turbo out there.

 

Your turbo now would be fine for the top. Hx50 would be too small IMO for the bottom, heck people are using them as singles. I think a hx60 would be a nice bottom. Thats what KTA is using for his twins. Found on higher hp N14, Signature and ISX Cummins. A decent big truck junkyard will have these readily available on cores and cheap too. Most of the time the turbos are in good shape. I'm not quite sure where the HT3B is found, I think I've read from the N14 C.
KTA would be a good guy to ask about turbos. He knows his stuff.

 

i'm running a hybrid (high tech parts) and an ht3E (note it's not a 3B). the 3e is a little smaller all the way around than the 3b. i haven't been in any other trucks with twins so i don't have anything to compare it to, but i think she spools pretty nice. the only thing i would have done differently would be putting an external wastegate in. i would highly recommend spending the extra time and money on one when you put yours together. and before you go digging in the yards, i would give htt a call. you might be surprised at how cheap these big turbos are new.

dave