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Old 06-21-2010, 10:53 PM   #62
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Member#: 156973
Join Date: Aug 2007
Chapter/Region: International
Location: Adelaide, Australia
2002 ADM WRX STi
STi Black/Blue


Originally Posted by rubinm View Post
399 whp / 465 tq HTA68 on e85.
You post a link to a thread where a guy claims he made 399. No dyno sheet, no logs, nothing. My car makes 600whp with a TD04

Originally Posted by Dave D. View Post
It took E85 to do it. The other barn-burners needed E85, meth, or race gas to get to this level.
And the HTA68 was on E70. Check the list, there are 18g's making more power on less boost with less timing (plus I'm pretty sure Renosuby's result was on 93 pump fuel)

I'm not having a go at your choice for using a HTA68, just the incorrect information that ppl constantly spread about the HTA68.

TBH the HTA68 is a great turbo for what it is - a 16g that provides fast boost response with a little more whp then stock sti turbo - but at the end of the day, it is only a 16g with a ~10% higher flowing comp wheel.

PPL should stop quoting and spreading the BS power figures, as it is distracting and wrong and leads to other NASIOC members buying a turbo that does not meet their needs.

Originally Posted by rubinm View Post
Myself I'm interested in pump gas results. Guess I'll have to see what I can find for reference besides my own data points.
Time and time agin ppl have shown the HTA68 doesn't make the numbers on pump fuel. Most get around 300whp on pump - and that is on a dyno, and every man + dog knows dyno are for tuning, not for accurately comparing whp/tq figures.

Originally Posted by rubinm View Post
My hypothesis at this point is that small hotsides do very well with high octane, allowing quick spool and avoiding pulled timing on top.

Of course I'm not running a 7cm^2 hotside, which is why I think the 10cm^2 hotside with a free-flowing exhaust might make a statement on pump.
As I mentioned above, at the end of the day, it is only a 16g with a ~10% higher flowing comp wheel - so regardless of turbine flow, you're still limited by the low flowing compressor wheel.

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