Holset turbo without BEP Housing?

[Nicklepage1010]

Has anyone tried running any trim of the holset turbo without the Bullseye housing?
Not something i plan on trying, i was just wondering how much the flow rate would be effected.

 

[cl1ckclack]

i wouldnt imagine the flow rate would be effected much... but the spool up would be absolutely terrible.

 

[Nicklepage1010]

Define terrible. I Havnt seen any sort of info on this subject.

 

[cl1ckclack]

based on the size of the exhaust housing... and the fact that they are made to be spool up on a big displacement diesel... i couldnt even imagine how bad they would be.

 

[91stocker]

I'd imagine the twin scroll whoops all over the bolt on housing in spool up and over all flow.

 

[Nicklepage1010]

on our 2.0l?

 

[cl1ckclack]

i would have to venture out and say that your wrong on that one... theres a reason a majority of people go with the BEP housings. its been proven that they are enough the max out the compressor, meaning that using a bigger housing, would give you not flow gains. the twin scroll will help. but still take for ever. for anyone interested. there is an ad in the freelancers for someone who makes exhaust housings for the holsets. and yes, he has a t4 twin scroll that is much more user friendly for us.

 

[Tiki2777]

i wouldnt imagine the flow rate would be effected much... but the spool up would be absolutely terrible.

Full t3 twin scroll is far from terrible... That statement couldn't be more wrong. Dont make idiotic speculations. Look at the member mr. Peepers for a good example on non beep setup. Twin scroll destroys the bep housing.
Flow is greatly increased from Bolton bep to t3 divided.

 

[cl1ckclack]

Full t3 twin scroll is far from terrible... That statement couldn't be more wrong. Dont make idiotic speculations. Look at the member mr. Peepers for a good example on non beep setup. Twin scroll destroys the bep housing.
Flow is greatly increased from Bolton bep to t3 divided.

i believe he was talking about using the exhaust housing that comes on the holsets when you pull them off diesels...

 

[Tiki2777]

i would have to venture out and say that your wrong on that one... theres a reason a majority of people go with the BEP housings. its been proven that they are enough the max out the compressor, meaning that using a bigger housing, would give you not flow gains. the twin scroll will help. but still take for ever. for anyone interested. there is an ad in the freelancers for someone who makes exhaust housings for the holsets. and yes, he has a t4 twin scroll that is much more user friendly for us.

Still wrong. You can max out an 8 blade hx35 on bep, not a 7. And most can't max a 40 with a BEP bolt on.

i believe he was talking about using the exhaust housing that comes on the holsets when you pull them off diesels...

Yes thats the one......?

 

[cl1ckclack]

http://www.dsmtuners.com/forums/turbo-system-tech/362444-holset-turbos-faq.html

 

[Nicklepage1010]

i believe he was talking about using the exhaust housing that comes on the holsets when you pull them off diesels...

This. Right off the cummins, sorry about the confusion. Is there any benefit to using the stock housing?

 

[cl1ckclack]

Still wrong. You can max out an 8 blade hx35 on bep, not a 7. And most can't max a 40 with a BEP.




Yes thats the one......?

dude... they make more than 1 BEP housing.

 

[Tiki2777]

dude... they make more than 1 BEP housing.

YOU DO NOT NEEED A BEP HOUSING.

This. Right off the cummins, sorry about the confusion. Is there any benefit to using the stock housing?

FLOW (and with proper setup, spool)

 

[cl1ckclack]

if the factory housing is better, and efficient, then why dont you see people using it??? why do SO many people use other housings?

 

[cl1ckclack]

obviously you dont need a BEP housing. im just wondering how you know that any of them can't max out a HX40... sounds like your only talking about one of them.

 

[cl1ckclack]

i have spent a ton of time talking with this guy... who makes the custom housings... you still think you know more about holsets than him?

SALE HX35 & HX40’s+Custom Turbine Housing - DSM Classifieds

 

[Tiki2777]

if the factory housing is better, and efficient, then why dont you see people using it??? why do SO many people use other housings?

WHY YOU SAY? Hmmmm i don't know, how much does a twin scroll manifold COST? Ohhhhhhhhhhhh like over 1 thousand dollars! And holsets are considered CHEAP SETUPS WTF

i have spent a ton of time talking with this guy... who makes the custom housings... you still think you know more about holsets than him?

SALE HX35 & HX40's+Custom Turbine Housing - DSM Classifieds

Not arguing with him, ONLY YOU! And hes trying to sell his OWN turbine housings! No shit hes not gonna sell/advertise the stock housings?!

 

[boosted99_420]

People use the BEP housing so they can bolt a hx35/40 to a stock manifold or o2 housing its not required to use a bep housing. On a sock housing I belive it flows better than BEP also. But it all comes down to cost I would imagine if you want a hx35 on stock o2 housing and manifold go bep it will save you about $700 for a name brand manifold and o2 housing if you got new.

 

[Nicklepage1010]

Nevermind......

 

[Tiki2777]

Nevermind......

Lol I hope this helps you , I plan on going full ts t3 hx35 7 blade sooner or later.

People use the BEP housing so they can bolt a hx35/40 to a stock manifold or o2 housing its not required to use a bep housing. On a sock housing I belive it flows better than BEP also. But it all comes down to cost I would imagine if you want a hx35 on stock o2 housing and manifold go bep it will save you about $700 for a name brand manifold and o2 housing if you got new.

Thank you...

 

[punxnotdead185]

The BEP housing is known to be limiting in the high rpms with a 7 blade HX35. If you get a 12cm housing like the one that comes on the WH1C I'm using it won't hurt spool by much, it should spool only 500 rpms slower than the HX35 BEP housing. My friends wife has a BEP housing on a 8 blade HX35 and it boosts by 3k rpms and the 12cm seems to spool at 3500 on most cars I've seen, with a twin scroll mani they spool almost exactly the same. I won't go with the BEP housing because I plan on upgrading to the HX40 pro wheel like my friends wife is doing and I actually want to be able to use that wheel to it's full 700hp potential and the BEP housing won't flow enough for that, from what I've heard 500 hp is where they become restrictive, the 12cm housing will supposedly flow 700 hp but barely. There is a HX40 version of the BEP housing also and I don't know much about it other than it's a little laggier but flows more. This is a quote I found and it seems to sum up what I know.

Then you don't look. Anyone pushing the BEP hit it's limits real quick. Just look, every stock hotside hx35 (7,8 blade, WH1C) makes more power than almost any BEP hotsided holset. Seems like most BEP HX40's are lucky to get out of the 12's and pull 115mph traps. My first time ever at the drags I went 11.85@121 on a $125 T3 WH1C, on a cheap SFP T4 mani with an adaptor plate. Then I went 12.10's@116 the next weekend on 93oct. You can buy cast t3 manifolds on ebay for next to nothing, no reason to handicap yourself with a BEP housing.

 

[cl1ckclack]

maybe the holsets come with different hotsides depending on what vehicle you find them on. because i have talked to a few different knowledgable people about the holsets, considering my next turbo will be a t3, 6 blade HX40 with a batmowheel, and they have told me that holsets come with large exhaust housings, because they are made for those large displacement diesels.

 

[punxnotdead185]

maybe the holsets come with different hotsides depending on what vehicle you find them on. because i have talked to a few different knowledgable people about the holsets, considering my next turbo will be a t3, 6 blade HX40 with a batmowheel, and they have told me that holsets come with large exhaust housings, because they are made for those large displacement diesels.

Yeah the non wastegated housings are horrible like the 18.5cm and 21cm ones that come on the old h1c's, like no boost till 5k on the 18.5 and consider yourself lucky if you ever even spool on a 21cm . The wastegated housings are much better.

 

[Tiki2777]

maybe the holsets come with different hotsides depending on what vehicle you find them on. because i have talked to a few different knowledgable people about the holsets, considering my next turbo will be a t3, 6 blade HX40 with a batmowheel, and they have told me that holsets come with large exhaust housings, because they are made for those large displacement diesels.

Yes, unfortunately some hx40s come with ridiculous 20 (maybe even 22cm IIRC) cm housings. The best hx40 housing would be either the 16cm2 or 18cm2 off older ones or a bep T3/t4 housing. You won't get much out of the batmowheel without a decent sized turbine housing.