I think that it is good for at least 650 hp.

Ellinas eisai? Pou vriskesai?

 

my guess would be 85-95lbs/min for the hx50 800whp should be no problem for it

 

"Only" a 65mm inducer tho, so surely not much more than 700bhp, no? Or are Holsets a bit special like that? Genuinley no idea, just hope it spools fairly nicely, as its not an all-out power car.

Power is good tho :D

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b20vtechb &raquo;</TD></TR><TR><TD CLASS="quote">my guess would be 85-95lbs/min for the hx50 800whp should be no problem for it</TD></TR></TABLE>I dont see that happening with a 65mm wheel.

 

for reference i was only trapping 134 with 28psi on my 60mm hx40, thats only around 500.

 

theres more to a turbo then just the inducer diameter exducer diamater is just as important and its much larger on that turbo then the hx40 . also look at the borg-warner turbos they flow more with smaller inducers then the garretts. you can't just boil the flow down to a few measurements.

 

uhh... ok but these ARE the same company and basically the same turbo just a slightly larger compressor wheel. It will still have the same inducer to xducer ratio.

borg warner turbos are extended tip (cheater turbos they have been called)

youre comparing apples to oranges. and quit frankly i think everyone on here has been over inflating the flow rates of the holset turbos just a bit. i have ran 3 diffrent ones on MY car (how many have you ran?) yes i liked it. but if it was flowing as much as you guys think i would have made more power.

we all know its hard to get a map for these turbos especially when they never made 2 of the same turbo (lol?)

Witch brings me back to the initial point. youre over inflating the numbers.

 

Must admit, I thought it had a pretty huge exducer compared to inducer size, which i know is good for high boost efficiency, but didnt think it made much odds regarding overall maximum power.

 

i really doubt that they have the same ratio, that would be the trim the hx 35 and 40's don't have a huge diff in the inducer and exducer. so i guess post up the wheel specs you have and we'll see what the trim is..


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SwappedTURBOegg &raquo;</TD></TR><TR><TD CLASS="quote">uhh... ok but these ARE the same company and basically the same turbo just a slightly larger compressor wheel. It will still have the same inducer to xducer ratio.

borg warner turbos are extended tip (cheater turbos they have been called)

youre comparing apples to oranges. and quit frankly i think everyone on here has been over inflating the flow rates of the holset turbos just a bit. i have ran 3 diffrent ones on MY car (how many have you ran?) yes i liked it. but if it was flowing as much as you guys think i would have made more power.

we all know its hard to get a map for these turbos especially when they never made 2 of the same turbo (lol?)

Witch brings me back to the initial point. youre over inflating the numbers. </TD></TR></TABLE>

 

not to be a dick but i don't think you had that thing tuned very well. cause i made 422whp on a pistons and rods ls/vtec stock bore on only 19psi sounds like your ignition timing was overly conservative or there was something else going on. when i made that run it rolled onto the dyno first pull was 360whp 3 pulls later still same boost 422whp amazing what the correct ignition timing can do. i'm pretty sure that if i woulda had some race gas 500+ wouldn't of been a problem at all for the hx35, i didn't wanna push the pump gas much more then that


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SwappedTURBOegg &raquo;</TD></TR><TR><TD CLASS="quote">for reference i was only trapping 134 with 28psi on my 60mm hx40, thats only around 500.</TD></TR></TABLE>

 

hey i was just wondering if you people run an oil restrictor for the holset turbos. ive got an hx35 running on a b16.. not boosting as a matter of fact not even driving the car as am waiting on my ecu to come.

what oil pressure will keep it healthy and wont blow past the seals???

thanks

 

i dunno if this appilies here, but i just recently purchased a hx35 for my accord and then stumbled upon this thread, ironic!

anyways, my question is, i have a 95 accord ex coupe with a f22a bottom and a jdm f20b head, going to be running that hx35, and i wanted to know if the 560 evo injectors will be sufficient for around 15lbs? also the FPR im using is boost referenced 1:1 so i dunno if that will help extend the range of those injectors. for pcm im using a chipped p28 on crome.

also what can i use for datalogging? that way i could tell for sure what my duty cycle really is. im looking into trying to tune my car myself, and i have a laptop and crome, but do i have to burn a new chip every time or can i get like a romulator or somethng similar? where do i get one?

thanks
Eric

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b20vtechb &raquo;</TD></TR><TR><TD CLASS="quote">not to be a dick but i don't think you had that thing tuned very well. cause i made 422whp on a pistons and rods ls/vtec stock bore on only 19psi sounds like your ignition timing was overly conservative or there was something else going on. when i made that run it rolled onto the dyno first pull was 360whp 3 pulls later still same boost 422whp amazing what the correct ignition timing can do. i'm pretty sure that if i woulda had some race gas 500+ wouldn't of been a problem at all for the hx35, i didn't wanna push the pump gas much more then that


</TD></TR></TABLE>
22 advanced at 28psi

do you have any trap speeds? dynos lie trap speeds do not.

 

Holsets have also some kind of extended wheels compared to Garretts. I ask this question at the Bullseye power forum. Holset calls it High Pressuse Compressor Impeller or something like this. So, Borg Warner and Holset are very close. Borg warner can be sold better because they are not so common like holsets.

 

They certainly do have large educers, it enables them to be efficent at 3bar boost+, where Garretts are usually on their knees at 2bar+, but i still cant get my head around how that would equate to more actual airflow for a specific inducer size.

But hell, im no scientist!

 

i'm working on a HX35 D16 vitara build.. Using a custom twin scroll mani, 2 38mm tials, decking the block to raise compression a little, Y8 head, 105300 cam, probably a full valve train, and the other usual bolton mods..i'll keep ya'll updated as it goes..

 

ok well i found a little more info right off holsets site.
Hx35 range base flow is .46 kg/s and that equates to 61lbs/min
Hx40 range base flow is .53 kg/s and that equates to 70lbs/min
Hx50 range base flow is .75 kg/s and that equates to 99lbs/min

these are gonna be a little diff for each turbo cause they have a **** ton of diff options but these should be in the ballpark.


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SwappedTURBOegg &raquo;</TD></TR><TR><TD CLASS="quote">
22 advanced at 28psi

do you have any trap speeds? dynos lie trap speeds do not.</TD></TR></TABLE>

 

70lb/min on the HX40, as i suspected from measuring the wheels, doing comparisons, etc, cool, that will do.

 

anyone has a staock holset 5 bolt flange for sale with 3 inch v band!! i need one !! just pm or give me some info where to buy one thanks

 

Hi, i am about to upgrade my holset HX40 (56mm inducer 8 blade) to Super 40 (60mm inducer 7 Blade) specs and i was told that because my turbo has allmost no km on it and the new impeller balanced from the factory comes that i must simply put them toghether and dont balance anything.

Can it be? What should i do?

 

what has everyone been running for oil supply ?

 

Getting closer here the Full race mani and HX55/BW hybrid

 

Bruce, if your motor holds together in one piece then it should be a monster. Good to see you actually have your manifold and turbo pieces. Give me a call sometime.

 

whats the deal with that HX55/BW hybrid? custom built? just curious to see what kind of updates there are for the holsets, specifically the hx35's.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by speeddave &raquo;</TD></TR><TR><TD CLASS="quote">whats the deal with that HX55/BW hybrid? custom built? just curious to see what kind of updates there are for the holsets, specifically the hx35's.
</TD></TR></TABLE>
It was made by a local turbo shop (Diesel Injection Service in Cincinnati, OH) on a custom basis. Apparently, the Borg exhaust housing with a little machining will work wonders. Which Borg - I have no idea.

If you look through this thread, you'll find that a HX40 compressor wheel is the only real easy upgrade option for a HX35.