archer39

I agree, either if them would be a good match to ddp3s.

dieselJon

Well, for cheap, I would do an HE351. You guys are comparing apples to oranges in terms of flow of a 60mm larger trim HE351 to a 58mm smaller trim HY35. The HE will flow more into and out of than the HY.

If you have the bones, something like a 62 or 64 compressor with a 60's turbine tucked into a 12cm or .8x A/R housing.

sshort

I no my heap runs the best it has ever did with the 63-68-12 that i installed I have the waste gate set at 50 psi with the water/meth engaged it also can be run to 56psi with no problems according to E.D.

fatt

I would not get a Dtech 62. The 65/12 exhaust combo is terrible at higher rpm.

stillsmokin209

Yes a 60mm turbine is tiny. What else would you call it?
Just because it CAN be done doesn't make it right. Hx35's have been pushed to 400+ hp on 2nd gens, doesn't mean its a good setup.

Even at 350hp, I would still enjoy a slightly larger housing.

crewcabxlt

in testing ive found large exhaust housings to be a poor excuse for proper tuning/set-up. the he-351 cools air better than a n hx-35 with a 18 cm housing. smaller housings are more fuel effecient. in towing hills i found the truck had more usuable power when testing an hx-35 /14 vs hx-35/12. air in is more important on a turbo engine than flow out within reason. big exhaust housing are old ,poor technology. keep the turbo in it "map" and it will cool.

BILTIT

So what would you call a stock 1st gen turbo? Super tiny?

huntinguy

What nobody wants to try the HE351vgt?

Onemoparnut

I would actually like to try it just so I can say I have an exhaust brake. With a non lu trans it won't do much.

stillsmokin209

They are a proper tuning tool for a given application, just as smaller housings are as well. They make larger housings for a reason. Hence why your 14cm cooled better than the 12cm. The charger was able to stay within the higher efficiency % of the map without having drive pressure become an issue. VE's fuel on the lower side of the rpm range, so why not run a slightly larger housing and take adavntage of the benefits? For what its worth my lowly hx35/18cm combo spools awesome and cools well. And flat out chits and gits for what it is. I would be hesitant to install the 12cm which I ported and "extensively" modified.
Yes, super tiny is correct. Not much charger is needed for a vehicle with an rpm ceiling of 2200 rpm and 160hp.

TRENDZ

I have a he351vgt. It is an awesome turbo for my combo. I think if more people would try one there would be more happy people out there.
The two big problems with them is: The flange doesn't directly bolt up, and no one wants to mess with the control section.
The flange can be overcome with adapters or a bit of machining.
The control section is a neat feature that can be used in alot of ways in our favor. Most people who try these adapt a wastegate actuator to the control rod. This seems to work well as most guys post great results from this. I've heard of guys using cables to control them from the cab(I like this). I used an electric motor to control the vgt from in the cab.
My point with this is if you can get it to function as a vgt, great...But it doesn't NEED to vary all the time. The 351vgt allows you to set your exhaust housing anywhere anywhere between closed and wide open. It is effectively an exhaust housing that can be set in a fixed position between 0cm to 23cm. You can tune the turbo to your engine needs without changing exhaust housings. Something as simple as a threaded rod could set the turbine in a fixed position.
My truck does not vary the position while driving unless I move the position with a switch from in the cab. I set it and forget it. It does help to close the housing for cold start warm up, or move it going down the freeway with a load to get the best egt.(try that with a fixed housing turbo)
The compressor section is sized great for my application, Im not sure how much more fuel it would clear up, but I REALLY like it in my truck.