What turbo to run?

[kamotors]

would need lots of custom parts, basically every single flange on it isnt compatible with most e30 turbo setups. it could be made to work,but wouldn't be worth it. plenty of small t3 turbos for cheap that get the same job done.

[GAbOS]

I don't follow your response. It's not good because it's tiny, or because it would not work well even if you were looking to not go totally insane with boost?

I am not looking for more overall power as I am usable power. Pull early and constant. I will tell it how many numbers to make ;>

[einstein57]

Cause.....Well just look at it.

[GAbOS]

What about the OE Evo X twin scroll? Forgive me. I am ignorant when it comes to turbos. But OE Evo X turbos are a dime a dozen these days. A 6k unit on my Ralliart forums for $450 right now.

TD05HA-152G6-12T
Compressor: 12 blade (6 full/6 splitter), 68mm diameter, 48 Trim
Turbine: 12 blade, 56mm,76Trim
Turbine Housing A/R: 10.5cm^2

[Nutzy]

Wow. You need a twin scroll. My gt4094 was making full boost of 20 at 4500. And that was on a 2.5

This. I have data logs showing 11psi at 2800rpm on a Schwitzer S256 twin scroll.

[travish325]

I have two turbo E30s I helped build running gt28 .60,.63A/R turbos and they both creep into boost around 2k and full boost by like 3k. Both are 2.7 builds one runs a ported head with a cam and they both hold boost until redline no problem.
My gt35 doesnt get full boost until 5k:(

Wow. You need a twin scroll. My gt4094 was making full boost of 20 at 4500. And that was on a 2.5

[brianpgriset]

If you are running an external wastegate and worried mostly about spool I would run the HY. It has a 9cm^2 exhaust housing vs the 12cm^2 of the HX(holset doesnt use AR but if you look around there are some conversions), but does have a slightly smaller impeller (54mm v 56mm I think) so it won't flow quite as much.

Truthfully though if I were you I'd search for a good condition HE351CW. It's a 60/60/9 so flows way more then the HX but has a nice tight exhaust housing for quick spool and a more efficient design. Also note the HE351CW does not have a divided exhaust housing.

5.9 cummins from 04.5 to 07 will have this turbo.

[4ce30]

Great feedback, thankyou! Im going to do some research on the hy35 and compare to my garret. I dont want the late spool of the hx i need a quicker/longer powerband even if i make less power!

[einstein57]

AK is only 2.5 though. Should spool quicker on a 2.7

[FLG]

HX35 starts to spool at about 3k, not soon after shes at full boost. With a non ebay manifold im sure she would spool a bit lower.

[ak-]

I have two turbo E30s I helped build running gt28 .60,.63A/R turbos and they both creep into boost around 2k and full boost by like 3k. Both are 2.7 builds one runs a ported head with a cam and they both hold boost until redline no problem.
My gt35 doesnt get full boost until 5k:(

Yeee. And that's what I meant by you need to know internal trim.
60/63 housings can't tell the full story.

Honestly though, throw an sr20 turbo on it for quick spool/tq for the derfting needs. Cheap and reliable.

[kamotors]

I have two turbo E30s I helped build running gt28 .60,.63A/R turbos and they both creep into boost around 2k and full boost by like 3k. Both are 2.7 builds one runs a ported head with a cam and they both hold boost until redline no problem.
My gt35 doesnt get full boost until 5k:(

[Pootis]

[ak-]

Throw a disco potato on it

[4ce30]

Mine is a 60 aswell, 4200 is a little later than I was hoping for. I bet I could get the hy35 spooling quicker than that...