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bep .55 inducer exducer size specs for hx40

bmxr152

Well-known member
Joined
Jul 31, 2010
Messages
231
Location
Lake tahoe, NV
Im looking for exducer and inducer specs for a bep .55ar hx40 turbine housing. I replaced my bolt on housing with an hx35 t3 .70 and machined out the housing but forgot what size it was. Now the turbo needs a rebuild and i want to order the turbine wheel before i take it apart. i dont remeber if it was the 64/76 or 67/76 Anyways if anyone has one laying around they could mic for me that would be awsome.
 

EHmotorsports

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Joined
Sep 25, 2012
Messages
1,278
Location
Beaverton
I only have an HX-35 bep housing on hand or I would.
 

bmxr152

Well-known member
Joined
Jul 31, 2010
Messages
231
Location
Lake tahoe, NV
Yeah ive tried contacting various vendors and bullseye eith no luck yet.
 

EHmotorsports

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Joined
Sep 25, 2012
Messages
1,278
Location
Beaverton
yeah it seems most are all about selling you something but getting someone that can actually get you specs is scarce.
 

Jesus_Negros

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Joined
Jan 7, 2012
Messages
2,344
Location
USA
Hit up a diesel truck forum.
 

bmxr152

Well-known member
Joined
Jul 31, 2010
Messages
231
Location
Lake tahoe, NV
I don't think they are using a dsm bolt on turbo. the t3 .70 is probably the same maybie ill check on the diesel forum. I know the h1e came with one of two combinations. I would take it apart and measure but its my daily for now.
 

cheekychimp

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Joined
Apr 19, 2004
Messages
7,333
Location
East Sussex, U.K.
Are you sure the wheels were that big?

I thought the 8 blade HX40 had a 58mm inducer and the 6-7 blade a 60mm inducer. No idea on exducer. According to the information at the beginning of the numerous Holset threads on "Tooners" this appears to be the case.
 

bmxr152

Well-known member
Joined
Jul 31, 2010
Messages
231
Location
Lake tahoe, NV
im talking about the turbine size. I found out it is 64mm exducer and 76mm exducer. The h1e that I have has a 60mm inducer and 83mm exducer compressor wheel.
 

cheekychimp

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Joined
Apr 19, 2004
Messages
7,333
Location
East Sussex, U.K.
Alright, got you! So what is your recommendation as a real world user? I am guessing you happier with the T3 housing than the bolt on one? I bought the HX35/40 in the bolt on housing and I am wondering if it is going to be too laggy for me over here.
 
Last edited:

bmxr152

Well-known member
Joined
Jul 31, 2010
Messages
231
Location
Lake tahoe, NV
Honestly the gain from the bigger housing was worth the lag. But if i did it again i would have got a twin scroll housing. The bolt on housing at 32psi was flowing 46lbs wheras the t3 at 28psi is flowing 53lbs
 
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