Fp 68hta? - Page 2 - Subaru WRX Forum
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#16 Old 05-07-2009, 10:27 PM
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that sheet is really hard to see, care to elaborate on the type of numbers it was putting down in comparison to the 16g?

rollin on 17's now and they're dirty
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#17 Old 05-07-2009, 11:03 PM
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that sheet is really hard to see, care to elaborate on the type of numbers it was putting down in comparison to the 16g?
68HTA - 272whp, 253wtq (22.1 psi peak)

16G - 254whp, 237wtq (23.5 psi peak)


The entire powerband is better, much more consistent boost as you can see the 16g compressor surging and spiking to 23.5psi. The 68HTA held a much flatter boost curve, no spiking/surging. The 68HTA also can run slightly more timing and leaner mixtures, which indicate overall increased efficiency and cooler charge temps. Time for bed!
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#18 Old 05-08-2009, 12:46 AM
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Well, that's a nice turbo for the EJ205 no doubt but hardly lives up to the 47lb/min hype. It's just a slightly bigger E3-16G which was already a fan favorite for the 2.0L
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#19 Old 05-08-2009, 04:26 PM
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Well, that's a nice turbo for the EJ205 no doubt but hardly lives up to the 47lb/min hype. It's just a slightly bigger E3-16G which was already a fan favorite for the 2.0L
Yes, I'd have to agree with you there. Maybe the compressor can flow 47lb/min but the 7cm TD05H Turbine flows much less. I think its one of the top turbos for a 2.0L, certainly best per dollar.

On a side note the unit tested had the $95 optional turbine housing porting.
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#20 Old 05-08-2009, 05:52 PM
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Yes, I'd have to agree with you there. Maybe the compressor can flow 47lb/min but the 7cm TD05H Turbine flows much less. I think its one of the top turbos for a 2.0L, certainly best per dollar.

On a side note the unit tested had the $95 optional turbine housing porting.
Ya, I agree looks good for the 2.0L.

I can't wait until they come out with HTA varient 18G and 20G. I think a HTA 18G (based off a TD05H-18G) with a 8cm housing would be great. The increased efficieny of the HTA would be interesting when using it with the larger TD06H turbine as comparted to a standard TD05H (w/o the HTA billet wheel).

Also, if you look at the NASIOC thread about this they said Blouch and CBRD worked together for something similar to upgrade the EVO turbo. So it is possible Blouch has something in the works for Subaru side of the market.

However, IMHO we should not expect something revolutionary. Rather, the HTA is just a refinement of what we already have that gives a moderate imporvement in efficency across the board (spool time, holding power to redline, all while making a little more power).
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#21 Old 05-08-2009, 06:45 PM
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Better off going with an 18g if you want numbers. Go with this one if you would prefer the quicker spool. Agreed with mosc though, definetely not close to the 47lb/min hype it claims to be.

rollin on 17's now and they're dirty
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#22 Old 12-03-2010, 06:26 PM
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I hope this thread isn't too old to revive...

How would you guys feel about a 68HTA on my 2.5L? My goal is 300whp, and as quick spooling as possible.

Mike
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#23 Old 12-04-2010, 08:56 PM
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It's perfect for that

04 STi 16G powered lagless fun
04 WRX: SOLD
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#24 Old 12-05-2010, 08:56 AM
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Awesome :-) thanks

Mike
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#25 Old 03-07-2011, 10:17 PM
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Anyone have any ideas on where to find a compressor map for the hta68? I searched google pretty thoroughly and didn't have any luck.
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#26 Old 03-07-2011, 10:56 PM
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Some companies don't like releasing those, they take it as sensitive information.

04 STi 16G powered lagless fun
04 WRX: SOLD
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