Holset user thread

[turboit]

kinda wish I didn't sell my hx35 and put that on my jetta

[euro4-DoOr]

here's mine......hy35....not done yet....but soon

[Dave926]

Awesome!!!!! Please post more info on your setup, such as manifold, engine work, dp, software etc. Anything you can think of post it up. The more info the better

[Boost112]

Awesome!!!!! Please post more info on your setup, such as manifold, engine work, dp, software etc. Anything you can think of post it up. The more info the better

x2

[Quintin@USRT]

done friday...

[Sparknock]

why is every using a hx35? you can get an HE351cw that come with a 9cm2 exhaust and a muck better compressor disign then the hx35

[Quintin@USRT]

why is every using a hx35? you can get an HE351cw that come with a 9cm2 exhaust and a muck better compressor disign then the hx35

design (90* bend of compressor can bring problems), price, and availability. The only real thing the HE351 has over the HX35 is faster spool which is attributed to the 9cm hotside not compressor wheel design... the HE351 has a large compressor wheel but flows the same and has the same efficiency (roughly) to that of the HX35

HE351:


HX35

[acee_dub]

done friday...

Going to do some dyno runs?

[Quintin@USRT]

Going to do some dyno runs?

eventually.

[Dave926]

I believe the he351 does flow a bit more. But q is right, that 90* is a bitch. The only way it will fit on any vw would be with a sri, or a 1.8t of some sort. Except most of 1.8t guys only talk about garretts and pte turbos that the dsm guys have proven how ****ty the chra's are at med to high boost.

There is a dsm named aero who ran the he351ve (the vgt one) using a 14b actuator. Before his rod bearing went he was seeing positive manifold pressure around 2400 rpm. I'm not into fast spool but a turbo that spools before 3k and pump out 500+ whp is better than any turbo imho. Plus being able to have it act like a big hotside on the top end makes the turbine more efficient.

Quint if you could post up at what point you see positive manifold pressure and at what point you see full spool that would be great

[Daskoupe]

have proven how ****ty the chra's are at med to high boost.
t

yea i found this out

[Quintin@USRT]

5psi by like 2800...11~12psi by like 3800 (3rd gear...but its a tall 3rd )

[Dave926]

That's a lot better than most garretts....sounds like something a 50 trim would spool at. That's really good when you consider your car is an 8v

[Quintin@USRT]

yea its not bad...i found a small boost leak today will go drive it tomorrow.

[Dave926]

Now just imagine if you actually made a divided mani. Dsm people talk about picking up a few hundred rpm of spool, along with 'tuning' their oil pressure.

Btw quintin what is your oil feed/drain setup? I currently have some russel -16an proflex hose on the way and I'm going to flare the stock cummins pipe and clamp it to that. The od of the cummins drain tube is .88 and the russell proflex line is .875 id

[Quintin@USRT]

CORRECTION: positive pressure by 2400...5psi by 3200...10psi by 3800...20psi by 4400 (8v with ramhorn and 1.8t BT file)

[Dave926]

That's a fast spool...like really fast. Makes me wonder about my hx30. Just by going your data I should spool a bit faster since mine is smaller and its on a 16v.

[Quintin@USRT]

That's a fast spool...like really fast. Makes me wonder about my hx30. Just by going your data I should spool a bit faster since mine is smaller and its on a 16v.

[Dave926]

That's just amazing. Can you elaborate some more on the speca of your motor, such as the bottom end, cam, headwork etc. Please let us know the oil feed and drain setup as well

[Quintin@USRT]

2008cc 8v 8.5:1 compression, TT266 cam, ramhorn manifold (undivided) i gasket matched and knife-edged the divider of the turbine inlet as a result, 3" DP....

here's a lil fun run to show...still at 11~12psi



this trans REALLY hates high rpms

[acee_dub]

nice work

[bigtoy302]

I ran a HY35 on my 1.8t in my Corrado. It put down 342HP at 21PSI. Full boost was at 4800RPM. I later changed to a HX35 later and lost about 100rpm spool but did not notice much on the top end. I never had a chance to re dyno it. I did somehow manage to loose 5MPG going from the HY to the HX.





I have since parted out the car and used the HX35 on my 4runner

[Quintin@USRT]

ok tried out 16psi...wow...substantial difference...i think i'm happy here for now

[acee_dub]

I ran a HY35 on my 1.8t in my Corrado. It put down 342HP at 21PSI. Full boost was at 4800RPM. I later changed to a HX35 later and lost about 100rpm spool but did not notice much on the top end. I never had a chance to re dyno it. I did somehow manage to loose 5MPG going from the HY to the HX.





I have since parted out the car and used the HX35 on my 4runner

Did you run a scroll manifold or no scroll?

Contemplating whether I should get scrolled or open scrolled for my VR6 as I've heard spooling at low rpm is rough on the o2a's which aren't the strongest of transmissions.

[bigtoy302]

Did you run a scroll manifold or no scroll?

Contemplating whether I should get scrolled or open scrolled for my VR6 as I've heard spooling at low rpm is rough on the o2a's which aren't the strongest of transmissions.

Open. On my 2JZ I did a twin scroll and get 15PSI at 2900RPM. On a VR6 I think you would benefit from a twin scroll on the HX. The HY is open.

[Matt1023]

Anyone out there running a hx35 on a 1.8t? thinking a bored 2.0 twin scroll hx35 might be a nice kit to build

[bigtoy302]

I ran both hy and hx on my 1.8t. I liked the hy better for street driving.

[Boost112]

anybody with experience of a hx40 on a 12v?

[ricky_vwt]

I ran a HY35 on my 1.8t in my Corrado. It put down 342HP at 21PSI. Full boost was at 4800RPM. I later changed to a HX35 later and lost about 100rpm spool but did not notice much on the top end. I never had a chance to re dyno it. I did somehow manage to loose 5MPG going from the HY to the HX.





I have since parted out the car and used the HX35 on my 4runner

Which engine code was as that? Stock internals?

[bigtoy302]

Which engine code was as that? Stock internals?

AEB. Ported and polished head, Supertech exhaust valves, Wiseco .5mm over pistons, Scat rods. Megasquirt 2 management.

[Dave926]

That high of a spool seems weird. Quintin has a pretty fast spool with an 8v

[Quintin@USRT]

by 4500...

[Dave926]

Bumping bc I know there are more people using holsets

[Daskoupe]

I'll be a user by maybe tomorrow or the end of next week


Garret blew tonight

[Dave926]

keep this going...where is hyperformancevw? I know he was running 12 flat in a mk2 running a holset of some variety