WTB HX30 turbo

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WTB HX30 turbo

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atypicalguy

Holset

555

02-03-2015, 06:19 AM #15

(03-14-2014, 04:04 AM)Alcaid
(03-13-2014, 01:00 PM)MFSuper90 Alcaid, would you recommend a he221 over a hx30?

Depends on what application and what the goals are

HE221W has better transient response as the rotating assembly is much lighter, it flows up to 37.8lbs/min and has a very good surge margin but compressor efficiency is low.

HX30W has much better compressor efficiency but is a lot more mass to spool.

On a 1.6-2.0 liter engine, I would go HE221W

2.5 and bigger, HX30W, 40, 42, 44 or 46mm (Super) inducer versions depending on how much hp is needed.

If ultra fast spool and response is what one is after and 25-30lbs/min is enough air, HE211W 5cm is a winner!

How does HE211W compare to KKK K26 in terms of maximum lbs/min? My K26 needs a rebuild so I am thinking of building a new manifold and putting a more modern turbo on there, but no pump just yet.

atypicalguy

02-03-2015, 06:19 AM #15

(03-14-2014, 04:04 AM)Alcaid
(03-13-2014, 01:00 PM)MFSuper90 Alcaid, would you recommend a he221 over a hx30?

Depends on what application and what the goals are

HE221W has better transient response as the rotating assembly is much lighter, it flows up to 37.8lbs/min and has a very good surge margin but compressor efficiency is low.

HX30W has much better compressor efficiency but is a lot more mass to spool.

On a 1.6-2.0 liter engine, I would go HE221W

2.5 and bigger, HX30W, 40, 42, 44 or 46mm (Super) inducer versions depending on how much hp is needed.

If ultra fast spool and response is what one is after and 25-30lbs/min is enough air, HE211W 5cm is a winner!

How does HE211W compare to KKK K26 in terms of maximum lbs/min? My K26 needs a rebuild so I am thinking of building a new manifold and putting a more modern turbo on there, but no pump just yet.