Competition Need Some TwinSight

[whistleman]

How would an HX40 work with the current turbo on the H. O. ? Would it be a project worth attempting as far as power increase and how about a ballpark figure on pressure? I know there are better setups out there. Would rather invest in one new turbo than two. Any and all comments are appreciated, as I know there are many.

 

[HoleshotHolset]

Short answer: If you have the time... try it. The worst that can happen is that it'll be a waste of time (highly doubtful... ) and that you'll eat some parts in the process.



You'll learn from anything you do to your truck, and that is usually never a bad thing.



Matt

 

[CumminFast]

If you haven't bought the 40 yet I would buy a bigger one. I plan on running a 35 and 55.

 

[Jim Fulmer]

FYI, a 55 is not suppose to be big enough for a supplier, something like 950 CFM. The reason we all use the HT3B is it moves 1300 CFM or so and it cheap, even a PDR tweaked one is cheap. Call Piers about his HT3B's and using them with Twins, can't say enough about mine(Money well spent).



Jim

 

[whistleman]

TwInSight

Can see by the lack of response here, there won't be much help. Sorry for the bother. Will go it on my own.

 

[HoleshotHolset]

Do some research... there's more than enough info in old posts to build any twins setup you could want.



Matt

 

[TxDieselKid]

Re: TwInSight

Originally posted by whistleman

Can see by the lack of response here, there won't be much help. Sorry for the bother. Will go it on my own.

Whistleman,



Twins can be a touchy subject sometimes. Jim Fulmer is the man about giving some help without stepping one toes. Becsure to check out his thread. And then there was a thread, this one, and one that REALLY pertains to you, this one.



It's not that no one wants to help, just that some of the people who know more about these things don't have the time to post much anymore, i. e. My6, and Sportbike, and some others. Like HoleintheHead said, do a search, that's how i found those 2 links in this post.



Andrew

 

[CRoth - BD-Power]

Originally posted by Jim Fulmer

FYI, a 55 is not suppose to be big enough for a supplier, something like 950 CFM. The reason we all use the HT3B is it moves 1300 CFM or so and it cheap, even a PDR tweaked one is cheap. Call Piers about his HT3B's and using them with Twins, can't say enough about mine(Money well spent).



Jim

Actually if you look at the compressor maps the 55 will flow around 1430 cfm, while the HT3B will only flow around 1260 cfm. All numbers are maximum flow before choke.



But the HT3B is dirt cheap.

 

[whistleman]

TwInSight Thanks

TxDieselKid & CRoth,



Thanks for the threads and Info. All is greatly appreciated.

 

[CumminFast]

CRoth - BD-Power:

Hey where did you get that number? I thought it only flowed 1000cfm. So an HX-55 will flow more than a HT3B? I have a 55 and was/am considering getting rid of it and getting a HT3B, but if the 55 flows more I'll keep it. I hear the 55 is a newer/better built turbo. So a 35/55 would make good combo?

 

[CRoth - BD-Power]

Originally posted by CumminFast

CRoth - BD-Power:

Hey where did you get that number? I thought it only flowed 1000cfm. So an HX-55 will flow more than a HT3B? I have a 55 and was/am considering getting rid of it and getting a HT3B, but if the 55 flows more I'll keep it. I hear the 55 is a newer/better built turbo. So a 35/55 would make good combo?

We can get maps of most turbos, send me the part number and I'll try to send you the map.



The 50/55 series of chargers are not too bad, just a little expensive. They are small enough that in a twin configuration you would not run into a surge problem. What I like about the 50 is that you can get it in a wastegate configuration, so theoretically you could tune the primary charger. But I'm pretty sure it also has a dual inlet, which you don't want for a primary charger, and on the flipside the wastegate hurts efficency. Damn catch 22.

 

[HoleshotHolset]

Drew: "HoleintheHead" ?



:-laf

 

[Jim Fulmer]

Here is my original thread.



Here



Jim

 

[Jim Fulmer]

CRoth - BD-Power



Thanks for the info, I try to learn something new everyday!

 

[Smoker]

CRoth,

Do the 55's that you're looking at have a 4" outlet? I have heard that most have an outlet the same size as an H2E. I bought a HX55w last christmas that has a 4" outlet on the compressor and I was curious as to what the flow would be. I gave Pius at Bell the part number and he said that Holset didn't make these anymore because it was a batch of test turbos that they originally used on the Cummins Signature 600. It turns out they didn't use these turbos for major production and went with another turbo instead.

 

[Jim Fulmer]

Twins can be a touchy subject sometimes. Jim Fulmer is the man about giving some help without stepping on toes.



Thanks Andrew, I do it that way because I think and take care of other people before myself.



Jim