Choosing between H1c and H1e need some help

[turboglenn]

Just as title says, I can pick up an H1c or H1e locally, both in good shape, both are the same price (also found an hx-50 needs bearings for cheap too )

But anyway, i have read up that the h1e has to be the smaller turbine wheel to work with the BEP housing, so assuming it's correct for my goals of 500 - 550hp daily driven (at 438 now, just looking to get past 500 without using the nitrous to do it).

What are the pro's or con's of choosing one over the other? I am looking for the easier fit of the two honestly so i don't have to remove my main radiator fan, and i laready have a t3 manifold so if the stock housing will spool fine and is t3 i might use that

well, just looking for inputbased on experience and not "my buddy bla bla this...."

 

[hurricanecris24]

I would look in the holset complete setup thread and see peoples results with each one. I'm sure Justin will chime in and help.

 

[JusMX141]

H1C will struggle to get you to 550whp, the H1E should do it easily.

For reference, the H1E is the bigger of the two. I've never seen a H1E with anything smaller than a giant T4 divided housing, so picking up a .70 T3 BEP housing would be a glorious idea.

 

[turboglenn]

huricane. I've read those threads many times over, and actually being that justin sorta knows where i'm sitting and what my goals have been comapred to what i'm moving them up to i was really looking for his input on the choice because although the h1c has been said to make a best of 411 so far , the h1e I haven't heard much about other than the different wheels that come in it but nothing about results or spool times since most people go sttraight for the hx35.. Plus due to their size i don't want to put anything on that i can't run my main radiator fan with and i know some of the holset housings are too big for that on a 2g.

trust me i wasn't being lazy just looking for iunput based on my circumstances/goals and peoples direct experiences

and I had that earlier post wrong it's a super 40, but has shot bearings and i haven't been close enough to know if the fins ate into the housing or not, but i think that's a bit too big for what i'm after

 

[JusMX141]

The HX's have a better thrust plate design (stronger in the center and have an additional oiling hole)...the H1's have a better compressor mounting system (v-band, easily adjustable and seals 360*).

The newer HX's also feature newer wheel tech which really can't be had in the H1 turbos unless you get the cover machined to accept a HX compressor. This is not saying the H1 turbos are poor performers, they're just older tech- they still move a hell of a lot of air and are hands-down more durable than most Garretts.

 

[turboglenn]

Justin, how possible would it be to machine a HY compressor cover to accept an hx35 wheel? I like the smaller size of the HY and have coem to realize after mocking the h1 unit up against my engine bay that i will not be using one (i must have my AC on our 100*+ days like today)

I saw a comparison pic of the HY next to the HX and it's surprisingly smaller and probably about what i'm really looking for in terms of size, if i must give up some flow so be it, but it's either find a holset i like or turn my 57 trm into a 60 trim at this point.

I can do the machining, it's part of what i was taught down at majestic, i just don't have the stockpile of turbos to compare up and see if there's enough wall thickness on the compressor cover

 

[floader]

I too would love some more info a machining the H1c to fit the HX wheel. I think I am maxing out mine, but I really like the way it fits, just need more flow sorry if this is a hijack

 

[JusMX141]

Justin, how possible would it be to machine a HY compressor cover to accept an hx35 wheel?

You don't have to machine anything....the HY35 already has a HX35 compressor wheel in it. The turbine wheels are what is different, but the HY35 has already trapped 133mph on pump gas in a full-weight 2G that belongs to a friend of mine.

 

[turboglenn]

Sounds exactly like the turbo i'm after.. All i really am aiming for is a low 11 capability (which i have already if the traction was there) on a turbo that spools a little faster than what i'm running now with a little more airflow to boot. (somewhere around 55lb/min would be perfect, the one i'm on now shows 49 on the map, but in it's current shape with worn compressor blades it's below that i'm sure but still making near 440hp on my current tune)

One other thing i would really like even if I have to convert what ever turbo myself via machinign and welding is to have V-band down pipe outlet and possibly a v-band compressor outlet but the compressor side i'm not so worried about, but v-band down pipe connection is really the way to go IMO.

I just wish i could fine one in my budget in good shape, since i could even machine one of my many t3 hotsides to accept the holset turbine (i have seen that it can be done) But being half crippled up and shit is really working on my bank account and mental well being, although i'm coming to terms with it sometimes i just wanna say to hell with it all but why give up when you can spend another day trying.

 

[JusMX141]

Skip ahead to the :17 mark to see a HY35 run 11.14 and trap 133mph even after roasting the tires to a 1.9 60ft. This is in a full-weight car that was driven 2 hours to the track on pump gas.

YouTube - ‪PRP 2010 shootout.wmv‬‏

The HY35 uses a different turbine housing which mount to the CHRA with a v-band, so you're stuck with using the 9cm HY35 turbine housing on that particular turbo.