Thinking about buying a holset. Need advice

[Iroc_g]

So this winter, its go or go home time for the car. Its getting new turbo, FMIC, SMIM, Meth, etc.. I have been eyeing a FP82HTA (35r w/ fp bolt-on housing), but I haven't found a bank easy enough to rob yet!

My question here is what holset combination would be similar to this.

As far as goals for the car, I want to make 500+ AWHP on pump gas with meth. I want to keep the best spool possible, in the low 4000 range.

There might be nitrous in the future too, but lets not worry about that right now. Here is my setup now, as I don't think they are in my sig.

97 GSX. 6-bolt swap, lsd rear
2.0L bored .020 over, weisco 8.5:1 pistons, Eagle Rods, cometic head gasket and all ARP studs.
Comp 200's w/ fidazza gears, Ferrea +1mm valves w/ duel springs and Ti Retainers and fully ported head.
MHI EVO3 (ported by sbr), EVO3 Exhaust Mani and o2, RRE Downpipe and Apexi n1 exhaust.
Greddy 24r FMIC w/ dejon Piping for Blow Thru, SSQV, GM MAFT w/ 3", AVCr EBC.
Stewart Warner Gauges, Innovate LM1, DSMlink
ACT 2600 clutch and Flywheel, Shep Stg 3/4 w/4 spyder diff

My ONLY reason for thinking this is cost. I am a huge FP fan. Just curious if this is a alternative route.

Thanks

 

[deflator]

HX35 in the BEP housing should be able to deliver that, and likely spool under 4000rpm

 

[1gDSM4g63]

Go with either the Holset HX35 can do 500whp and spool below 4000 rpm, but by the looks of your specs I'd suggest a HX40. You got what it takes to go above and beyond 500whp and the HX40 has a very reputable spool in the low to mid 4000.

 

[andy4g63]

With the HX-35, you'll probably reach your desired level, but it is going to be maxed out I'll suggest HX-40, since you are going to use Mitsu style flanged manifold. With the Holset HX-40, you will do that at aproximately 26-28PSI =Meth and still have some room to grow, horsepowerwise. Take a look here:

http://www.dsmtuners.com/forums/tur...-results-only-complete-installed-systems.html

 

[IPT]

HX40 with a bolt-on housing. It will meet your goals without stressing the turbo.

 

[Iroc_g]

Well it sounds like the 40 is the way to go. I deffinatly would have a little left in the turbo rather than maximg it out.

So, what is the best way to buy one of these so I can figure out the price difference. I figure I can get it complete, but am I better off piecing it together? What are e good sources.

Thanks again. I have been reading the holset threads on and off allday, but there is a lot to soak in especially since I am just starting to get comfortable with garret numbers.

 

[dragonov_elite]

Not to high jack the thread from Iroc g. But i would like to know the answers to his questions as well as my own. Does anyone make an external wastegate recirculated o2 housing 3" or would this be a custom peice?

 

[Iroc_g]

Not to high jack the thread from Iroc g. But i would like to know the answers to his questions as well as my own. Does anyone make an external wastegate recirculated o2 housing 3" or would this be a custom peice?

Ive been looking for the same thing. I haven't been able to find any recirculated housings yet. Honestly, there is not much out there for these which kinda scares me a little. But, thats probably why they are cheaper is because its not the same old garrett band wagon!

 

[dragonov_elite]

Hopefully we can sway a vendor on here to start making them for the holset's

 

[Cs4g63]

These guys have some 2.5 inchers listed but im sure they can also make you one that is 3 inch.
o2 Housings

 

[DougR]

Just get a 3" o2 with the external wastegate dump tube. Then have it routed back into your DP just before the flex section. You can connect it with either a small V band or 2g bov flanges welded to the dump and DP. Simple and cheap.

 

[Black_Bullet]

OP were do you plan on buying your HX-35 from? Ebay? What o2 housing are you trying to run?

I am planning on getting the HX-35 myself in the next 3 or 4 months and after I got the turbo, I was going to use this kit here- The Turbo Trader

I dont know if there are cheaper "holset kit" options out there for what Iam trying to do, but if there are it would be nice if someone would let me know as I am on a super budget. Im just trying to make this work while keeping it cheap and simple, so from the info I have so far that should be everything I need to bolt the HX-35 OR the Big H1C up to my fp race manifold and Punishment racing 2.5 recirculated externally gated o2 housing?
Or am I missing something? Perhaps this is all needed after picking up a cheap HX-35?

 

[T9S1i]

black bullet, thats a pretty nice kit there!

 

[Black_Bullet]

After I get a cheap/ decent condition hx-35 off of ebay I cuold just by this BEP housing to run it.

http://www.timsturbos.com/SSTurbine_...MHI_Inlet.html

But I dont know if the turbotrader holset package Is a better deal^ since it comes with the return line, gaskets, and oil lines. But its 100 bucks more for all of that, maybe if I just buy the housing seperate I can get the return line and oil line for cheaper than 100 bucks and save some money?

I dont think the oil line matters much, Im going to keep it tapped to the head anyways, and Amazon Hose local to me will have what I need for that, but I hear the return line is HOlset specfic to run on our cars. May have to see how much the return line alone costs alone from Turbotrader.

From the looks of it Im going to put this setup together much sooner than originally planned.
Only things in my way is getting new tb shaft seals for my boost leak, and getting my driveshaft serviced. My carrier bearings are getting really bad, and I have this local connect, were im about to get a lighter stronger 2piece driveshaft and new yoke that removes my rear carrier bearing ( thats bad ) for a killer deal and I dont want to pass up on it. But after that Im diving into this holset game!

Id like to know how are guys doing with these used ebay hx-35s/ big H1c's?
Ive always been against buying turbos from ebay, and though these things are journal bearing and easily rebuildable, I still would like to make sure I can get one off ebay that could give me at least 10k miles at my boost levels without smoking etc.

 

[LocknessMonster]

WHy not use the holset t-3 housing? I think this is the route im going to go with for my hx35, this way i have room to grow in the future.

 

[Iroc_g]

Those of you that have gotten used holset's, where are you buying them?

 

[habitatguy187]

I've been reading about Borg Warner turbos they seem to be pretty awesome.

 

[Black_Bullet]

WHy not use the holset t-3 housing? I think this is the route im going to go with for my hx35, this way i have room to grow in the future.

Because then id likely have to change exhaust manifolds and o2 housings, and thats more money.
A bolt on mitsu housing with a HX-35 will suffice for my power goals, and probably for the power goals of more than half of Dsm'er's who buy a hx-35. In my case, especially with bigger injectors, built motor and e85 in the picture; I wont need room to grow beyond that unless the thing that is growing is my pockets... 450awhp with healthy torque curve, 3500rpm full boost, and a broad powerband in my 2700lb AWD car is certantly enough for me. You gotta stop somewhere right

 

[dsm-onster]

WHy not use the holset t-3 housing? I think this is the route im going to go with for my hx35, this way i have room to grow in the future.

Unless you have a later 7blade 60lb/min compressor hx35, the extra lag is a waste. The turbine will flow. And you can get more power per psi. But the typical 8blade hx35 and wh1c is a 52 lb/min compressor and will be pretty tapped out at 500whp.

I'm not saying that you can't do more. Guys are pushing the 52lb/min gt30r compressor wheel farther than 500whp, but again a reliable build includes a turbo that is in its 'sweet spot' at you goal, not overworked.

Now go for it if you have the 60lb/min hx35!!!

Those of you that have gotten used holset's, where are you buying them?

Ebay, or call Goldfarb, also diesel forums classifieds like Diesel Truck Resource.

 

[Black_Bullet]

So getting the 7 blade HX35 gives 100 more hp potiential than the 8 blade with what difference in spool?

 

[dsm-onster]

ONLY if you have a turbine that will flow enough. The compressor can have 100lb/min flow potential, but if you can't get out what you can put in, you are limited by what you can get out.

The stock hx35 turbine housing with the stock hx35 turbine wheel on a non-divided t3 manifold seams to flow enough to get to the potential of the 7blade hx35. Spool speed will be 20+ psi by abotu 4K. But the common 8blade 58mm inducer hx40 flows about 60lb/min and the bolton housing with the stock hx40 turbine wheel spools about the same as the hx35 in the stock hx35 turbine housing, 20+ psi by 4-4.1K; and has been proven to flow enough for over 650whp. So I would say that the common 8blade 58mm hx40 in the bolton housing probably provides more flow per psi, which would be better for pumpgas along with the faster spool adn the potential to upgrade the compressor to the 68lb/min compressor for a turbo that would be better than a gt35r in every way, it is a better option for most.

One thing about the later hx35 in the stock housing. The cost of a decent t3 manifold will be about the same as a BEP housing. A custom o2 housing will have to be budgeted in. Still The hx40 with a bep bolton housing will cost less. However most 550+ whp builds include purchasing a new exhaust manifold and better o2 housing anyway. . .

TimG needed 37psi to push about 600whp out of the hx35 turbine wheel and stock housing. Question is, will the common hx40 need the same boost to make the same power with the same mods?

 

[Black_Bullet]

Good info.
For a "close to" 450awhp pump gas, and 500 awhp race gas setup I think I will just go after either the Big H1c or the HX35 with the BEP housing that I linked above. Hopefully should reach that potiential as long as proper tuning and supporting mods are in order. I dont think a HX40 will be necessary for that goal, but if I am wrong then correct me. My main thought of interest is getting 450awhp on pump gas without too much difficulty; as well as it being the fastest spooling Holset setup with cost as still a factor. I dont care too much about the high rpms (8500k+) or of having the upmost peak power, I just want a fun, hard hitting, quick and torquey setup with decent potiential.

 

[Iroc_g]

ONLY if you have a turbine that will flow enough. The compressor can have 100lb/min flow potential, but if you can't get out what you can put in, you are limited by what you can get out.

The stock hx35 turbine housing with the stock hx35 turbine wheel on a non-divided t3 manifold seams to flow enough to get to the potential of the 7blade hx35. Spool speed will be 20+ psi by abotu 4K. But the common 8blade 58mm inducer hx40 flows about 60lb/min and the bolton housing with the stock hx40 turbine wheel spools about the same as the hx35 in the stock hx35 turbine housing, 20+ psi by 4-4.1K; and has been proven to flow enough for over 650whp. So I would say that the common 8blade 58mm hx40 in the bolton housing probably provides more flow per psi, which would be better for pumpgas along with the faster spool adn the potential to upgrade the compressor to the 68lb/min compressor for a turbo that would be better than a gt35r in every way, it is a better option for most.

One thing about the later hx35 in the stock housing. The cost of a decent t3 manifold will be about the same as a BEP housing. A custom o2 housing will have to be budgeted in. Still The hx40 with a bep bolton housing will cost less. However most 550+ whp builds include purchasing a new exhaust manifold and better o2 housing anyway. . .

TimG needed 37psi to push about 600whp out of the hx35 turbine wheel and stock housing. Question is, will the common hx40 need the same boost to make the same power with the same mods?

Damn, im confused now.

I think a HX-40 is the way to go for me. But which one do I want to find if I plan on running the BEP mitsu housing. I have been trying to find a 7-blade so i get the billet wheel, because that seemed the best out there. I haven't been able to figure out which models had that though.

After reading this, do I understand right you are saying the more common 8 bladed HX-40 is best in the BEB housing?

If I do a HX-40, I want the best config for spool. If I have to go HX-35, then I would worry more about flow.

Does that make sence?

 

[Iroc_g]

Sorry to post again, but I have annother question from reading here. What is the difference between the super40 and pro40. Are these 6blade or 7

I found a 7blade hx40, that has a 60mm inducer. Just trying to figure out which this is, and if there is a chance it has the billet wheel.

 

[andy4g63]

This is the best one out there.7blade-60mm inducer. It is called super 40. The 6 blade is called HX-40 PRO. The 7 blade flows a little more, than the 6 blade. Personally, I don't think that BILLET wheel would make such a difference, unless proven to flow a lot more. If you buying this particular one, they are rare and not easier to find...

P.S. On a turbo like this, the guy in the Holset results thread, made 653WHP. Look there, for his setup. And also that was with the smaller 0.55 AR T3 BEP housing !!!