pretty much all holsets are somewhat interchangeable...you can run a hx35 turbine side w/ a hx40 compressor...if flows a bit more than the org hx35....about another 10-11cfm/min....

wantboost....the is absolutely sick...have fun sqeezin that in the bay...im assuming its for your drag car so itll be a tub'd chassis....otherwise that compressor is massive!!! go so those boys what holsets are all about!

 

What about hybrids with the HY35? I've heard that these use a different design that makes a lot of the parts not-so interchangeable.

 

to be quite honest i havent done much reserach on the hy...mostly because its compressor wheel is a lil less efficent...and its 9cm housing is just to dam small for hi-power apps...the 12cm housing already spools too fast for me...4k full boost is just traction problems....

imho stick w/ the hx35 and youll be more than happy...if you want it to spool up quicker...run the 9cm housing off the hy...my guesstimate is youll start seeing full boost around 3300-3500 in a 1.8

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by drumking15 &raquo;</TD></TR><TR><TD CLASS="quote">to be quite honest i havent done much reserach on the hy...mostly because its compressor wheel is a lil less efficent...and its 9cm housing is just to dam small for hi-power apps...the 12cm housing already spools too fast for me...4k full boost is just traction problems....

imho stick w/ the hx35 and youll be more than happy...if you want it to spool up quicker...run the 9cm housing off the hy...my guesstimate is youll start seeing full boost around 3300-3500 in a 1.8</TD></TR></TABLE>

and thats exactly what i'm going for

if all cash permits my car should be running within a month or so. Tubular ramhorn w/ hy35. She'll be a baby on 9pounds till i can get some tbolts and some other odds and ends that i cant really affor atm.

Honestly guys if you have very specific questions regarding the turbo most any cummins diesel forum will have answers.

 

does anyone know where i can get a v-band flange and v-band clamp for the holset h1c?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Si Shane &raquo;</TD></TR><TR><TD CLASS="quote">and thats exactly what i'm going for
Honestly guys if you have very specific questions regarding the turbo most any cummins diesel forum will have answers.</TD></TR></TABLE>

yep i spent months lurkin on forums...actaully got ban'd from a few when i told them it was goin on a honda...diesel guys dont like us using their parts i guess...

also kasso...measure the opening...im willin to bet it's a 3" if its like the hx35...a universal vband can be used...i think i got mine from turboperformance.com or something to that nature....only prob is every dp vband flange on holsets is thick...i had to use a 5" grinder and take off about 1/4" to get the vband to fit...also atpturbo has them...and i think stan from fast-turbo can get them also....

 

any idea when an hx40 will start to spool on your typical ls?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by drumking15 &raquo;</TD></TR><TR><TD CLASS="quote">pretty much all holsets are somewhat interchangeable...you can run a hx35 turbine side w/ a hx40 compressor...if flows a bit more than the org hx35....about another 10-11cfm/min....

wantboost....the is absolutely sick...have fun sqeezin that in the bay...im assuming its for your drag car so itll be a tub'd chassis....otherwise that compressor is massive!!! go so those boys what holsets are all about! </TD></TR></TABLE>

nope, street car. im ditching the drag idea till mine is completely finished. it will fit, ive got my ways

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wantboost &raquo;</TD></TR><TR><TD CLASS="quote">i'm looking into having an hx60 hybrid made, with an hx40 or 35 turbine side</TD></TR></TABLE>

Try bladetwister on ebay, send him a message, he's the one who quoted me $500 for a hx35/40 hybrid. He said he could do that (the hx35/40) in the dark with his good eye closed. So an hx60/40 or 60/35 would prolly be no problem to him.

 

yea, but it wouldnt be a standard toss it together turbo. id have the wheels modded a little, the housings redone and have the chra worked on al ittle as well. like my current turbo. looks standard on the outside except for the coatings but its all magic on the inside

 

i cant wait till my holset comes in!! then its gonna be sent out to fab up a manifold and dp. after that, its gonna be sent out to be rebuilt (extra insurance). what size wastegates are you running with these turbos? i was gonna get the 38mm tial flange. but the h1c is like a t4 i think so will i need something bigger like a 40mm?

 

ive been running a 38mm gate on a ramhorn mani....plumb'd thru the stock exh it holds rock steady....open up the 3" dp and it spikes to 10...and holds pretty steady...unless its wet...w/ no traction it spikes like a **** to about 14 open dp.....what kind of mani are you plannin on building...if any id give it wastegate priority...or run dual gates to be safe....and the minor difference between 38&gt;40 is miniscule...id splurg for the 46 ...find a decnet used one for a good price

and for people building hx35/40 hybrids....it is pretty mcuh cake....remove housing...remove wheel....balance...put new covers and housings on...end of story...

wantboost...id def wanna see some #'s on that bad larry...hehehe and i love your style similar to mine.....semi stock look...w/ a big secret inside...killer!

 

yea its not gonna happen right away but it will be in the next month or two. i want to get some numbers on the current combo, because i will be testing turbos for a company so im gonna be a dyno *****, lol

 

I dont think exaust housing b/t the hy and hx can be swapped, im pretty sure the hy35 has a vband holding it together and the hx35 does not? correct?

 

one thing is for sure...holsets def come alive after 10psi....i up'd the boost today to 15psi...lets just say it scared the **** outa me...and my friend (preliittelude)....rollin from about 3k in 3rd gear gettin on it.....it just was all pull...till abut 6k when it started gettin hairy and the tires were gettin a lil squirly...in all honesty i have no idea how much im puttin down for #'s...but its the first time ive ever been scared driving...im still shakin...woooooohoo boost is addicting....crank da booooost!

 

Just got my holset in, damn thing doesnt have a name plate. Oh, well, the assembly number is 3593344 07. So I am hoping that the 35xxxxx means it's an hx 35. This turbo is fukn huge!!!! Wow, I'll post picts up later.

Can anyone verify if the assembly number matches it up to an hx35??? I searched the holset site but could only find numbers that matched the first two assembly numbers (and these were on the hx30, 32, 35, 40 data sheets and the hx service data sheet pdf, so it looks promising). Thanks.

 

You can email Holset US and get the specs, they're very receptive to that. Just tell them it's for a Cummins custom tractor pull engine you're building.

 

No one has any idea about the feasibility of the hx40? Damn it..

 

it will work...but youll be close to surging it...hence why many do the hx35/40 setup....you get a faster spool into boost and higher pr's...so you wont be surging...a straight up hx40 will work but good luck spoolin it...its a huge housing...

if your running it on a 2.2 it would be better...more info on your planned setup and power goals...where you want full boost..max power etc...would give me an idea of which directiont to push you in.....

 

anybody have some pics of their holset hx35 setups?

 

so where should max boost and HP be on the HX35? has anyone maxed one out yet

 

i'm looking at buying a rebuilt one... anything i should be wary about, the wheels and everything look in great shape.

 

Man, this thing looks like it has a 4" v-band outlet. Do most of the hx35 come with 4" outlets? It's massive, I put it side by side with my garrett to4b and it totally dwarfs it. What is the url for holset usa?? The only holset site I know of is holset.co.uk, I searched on google but couldn't find it. Crazy enough though it looks like the turbine side isn't that big even though the outlet is big as hell.

 

there is a place in so. cal that can get parts for them and works on them? just call turbo city in orange county ca and tell them you have a holset and they will refer you...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by drumking15 &raquo;</TD></TR><TR><TD CLASS="quote">it will work...but youll be close to surging it...hence why many do the hx35/40 setup....you get a faster spool into boost and higher pr's...so you wont be surging...a straight up hx40 will work but good luck spoolin it...its a huge housing...

if your running it on a 2.2 it would be better...more info on your planned setup and power goals...where you want full boost..max power etc...would give me an idea of which directiont to push you in..... </TD></TR></TABLE>

Surge has to do with the compressor spinning at a certain speed vs. the engine spinning at a certain speed. The only way you can surge a turbo is to put the wrong exhaust housing on it. That is the only way you can spin the compressor fast enough to surge for the amount of air the engine is moving. What you described actually inceases the chances of surging, putting an hx35 hot side with an hx40 compressor. does this make sense?

I want to know does the hx40 come with different exhaust housings, what the A/R is, and how much bigger the turbo is than the hx35, because I'm try to figure out spool characteristics for it on a 1.8 ls or gsr.