Anyone using Holset HX35 turbos?

[ncdirtrider249]

Oops...forgot to post the video...

Turbo Sharky 2g Talon Crazy Torque 663hp 655tq Holset Hx40 - YouTube

Turbo Sharky 2g Talon Crazy Torque 663hp 655tq Holset Hx40 - YouTube

[GCtech Industries]

Yes this turbos make good power but need to run high boost last time I recall our motors have a tendency to lift the heads at high boost if not fix like Ray does it, so I dont see a stock bottom end 6g72 running twin hx35 full or hybrid making more than 600awhp in the 25-30 psi range I hope im very wrong in my calculations because I have a similar setup altho 3.7 stroker ,but to take advantage anything passed 30 will be killer.
My dsm feels very good with my pump tune@22psi but when I crank it to 35 is a blast yet im running a garrett .82 a/r turbine housing.
Once I head back to the shop I post pictures of my HX35/40pro setup I did clip the turbine wheel 7* to lighten it up a bit.

[eengler2]

Head lift fix let people push past the 30psi scary zone and now head studs are letting people push past 35psi. 35ish should work well with a 35 based on DSM results.

I wanted to try twin 35's but the comp covers are so big that I don't think there is any way I can get them to fit on my 3sx td05 kit. Plus BEP td05 housings seem to be harder to come by anymore. 35's spool so soon for their potential that they may not be a bad choice even for a 3.0 at 35ish psi. 3.5 or 3.7 may be better though.

Maybe I should pick a trashed one up off eBay just to see if its possible to fit


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[GCtech Industries]

Originally Posted by eengler2

Head lift fix let people push past the 30psi scary zone and now head studs are letting people push past 35psi. 35ish should work well with a 35 based on DSM results.

I wanted to try twin 35's but the comp covers are so big that I don't think there is any way I can get them to fit on my 3sx td05 kit. Plus BEP td05 housings seem to be harder to come by anymore. 35's spool so soon for their potential that they may not be a bad choice even for a 3.0 at 35ish psi. 3.5 or 3.7 may be better though.

Maybe I should pick a trashed one up off eBay just to see if its possible to fit


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Forget the BEP housing , if you have access to a local lathe a very simple machining to a T31 stage III Garret T housing will do, yes I know a about the L19 head studs I have those in my DSM but they only come by on a GB order I dont see any shop selling them on their site yet.
On 3sx manifolds you will never make a Holset work these housingas are about 1" bigger in diameter as a T04S Cover no to mention you will have to do a light relocation to the rear A/C line and this is with my custom build manifolds

[Devilmightcry]

i don't think our car would do well with any turbo that is most efficient on high boost. we'll need twin turbo and even if we run 40psi that's about 20psi per turbo which is still below their efficiency. a set of turbos with max efficiency in mid boost is the best for us. but all the off the shelf turbos are made for single turbo and high boost in mind.

[MichaelMR2]

Originally Posted by Devilmightcry

even if we run 40psi that's about 20psi per turbo which is still below their efficiency.

well, that's pretty badly worded lol

[GCtech Industries]

Originally Posted by Devilmightcry

i don't think our car would do well with any turbo that is most efficient on high boost. we'll need twin turbo and even if we run 40psi that's about 20psi per turbo which is still below their efficiency. a set of turbos with max efficiency in mid boost is the best for us. but all the off the shelf turbos are made for single turbo and high boost in mind.

uhmm las time I check the only setup you add each turbo pressure is on compound systems, in a twin turbo you just add each turbo flow at a given pressure.
Simple example, if you set up your wastegates at 10psi and run each individual to the turbo pressure source you will get 10psi in the intake manifold not 20psi

[Devilmightcry]

so you are saying both turbo are making 10 psi each?

[GCtech Industries]

Originally Posted by Devilmightcry

so you are saying both turbo are making 10 psi each?

Yes sir but they are combining each other flow, say A and B turbos @10psi are flowing 25lb/min each then A+B=50lb/min but the boost remain the same, this is why twin turbo setups require the turbos to be exactly the same on each bank. Unlike compund or sequential systems that turbo size is different.

[Devilmightcry]

make sence. its like batteries in parallel. same voltage more amp.