Hybrid Turbo on Hilton Stage 2 - Is Stage 3 Necessary?

682 Views 8 Replies 5 Participants Last post by 08XC90V8, 12 d ago

08XC90V8

Discussion Starter · 24 d ago

I try to keep my posts limited to my thread so as to not clog up the forum, but I haven't gotten any definitive answers on this yet.

I recently tuned my car to Stage 2 with Hilton, not knowing that just a couple of months later (in August) I will be shimming my block and have gone with the 71mm K24 hybrid turbo by Nick Knight at NM Turbo Co. I asked Nick and he said no tune is necessary to run his hybrid K24. Rob from Hilton, on the other hand, told me the following:

I had initially bought the hybrid K24 with the intent to keep an equal 20 psi throughout the rev range and thought while I had the stock turbo out, I might as well replace it. Replacing it with an OEM K24 was about the same $$$ as Nick's hybrid upgrade. So I pulled the trigger. $1400 for the turbo + $1000 for gaskets, seals, parts, all the "while you're in there" stuff for shimming the block, making it $2400 total.

But I had no idea I'd need supporting mods like a Stage 3 tune ($725), bigger injectors ($600), and a bigger MAF ($200), totalling up to $1525 on TOP of $2400. Now I understand these cars aren't cheap to put on the road—I've sunk a lot more into bringing this car to where it is today—but my question is, do I really need to get all these supporting mods just to run a hybrid K24? I'm not trying to push more power, I just want an equal boost level of 20 psi and quicker spool up. Shouldn't it run just fine on the Hilton Stage 2 tune?

Thank you all.

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prometey1982

· #2 · 24 d ago

You don't need RS4 MAF and it don't rise your boost level bigger injectors. I made 1.5 bar of boost with stock 440cc injectors and stock MAF. But fuel pressure should be raised on high load. And there is no injectors performance reserve is this case.
In short you can stay with stage 2 tune with your config. But boost controller parameters can be sighly wrong. In this case you need to adjust wastegate preload.

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Laguna1

· #3 · 24 d ago

Only tuning for a hybrid turbine. So I buried my first motor).

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prometey1982

· #4 · 22 d ago

Laguna1 said:
Only tuning for a hybrid turbine. So I buried my first motor).

You blown your motor not cause hybrid turbo but because of yourself. You didn't log work of your engine. Didn't check AFR and injectors opening time. And didn't check boost pressure. Desired and actual.

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Laguna1

· #5 · 21 d ago

You can follow the advice and play Russian roulette

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08XC90V8

Discussion Starter · #6 · 20 d ago

Any other opinions?

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de-maRco

· #7 · 16 d ago

I'm running the same turbo on a rebuilt B5254T5 with no tune (yet) but just cruising around with the factory MAF and injectors. If you can data log your engine and see what your AFR's are etc. at max RPM I think that'll determine what you'll need to do. I wouldn't think you'd need ALL that just for a turbo swap however unless you're going for max power and safety.

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svdlR

· #8 · 12 d ago

FWIW, I run a hybrid turbo, stock injectors, stock MAF. All fine if the tune is right!
What prometey1982 said basically.

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08XC90V8

Discussion Starter · #9 · 12 d ago

svdlR said:
FWIW, I run a hybrid turbo, stock injectors, stock MAF. All fine if the tune is right!
What prometey1982 said basically.

Thanks a lot for this. Just the answer I was looking for. What tune, if you don’t mind? And was the tune done after or before the hybrid turbo (i.e. was the tune done for the hybrid turbo specifically?)

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