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Discussion Starter · #1 ·
<br><A HREF="http://nashranch.com/s40%20dyno%20run.jpg" TARGET="_blank">http://nashranch.com/s40%20dyno%20run.jpg</A><br>236 whp and 272 ft-lbs to the wheels actual as measured with no fudge factors, that is 369 Nm to the wheels. Note that full crazy torque is reached from off idle at 2500 RPM hence the tire smoke. Note the second line is with the exhaust open after the Cat.<p>John's stock dyno run<p><A HREF="http://nashranch.com/johnsdynorun.bmp" TARGET="_blank">http://nashranch.com/johnsdynorun.bmp</A><p>My question is, after hanging out on the Focus forum: how come I show about 13 PSI midrange and 6 PSI after 6000 RPM with chip, while the Focus guys show 18 PSI midrange and 9 PSI above 6000 RPM with about the same BHP and torgue? The only thing I can think of is my boost gauge is hosed. Anybody out there with boost numbers? stock or otherwise. Of coure the Focus boys got gauges.<p>
 

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Re: boost level (Oldman)

Intercooler and air plumbing differences? Altitude / ambient differences?<p>Tom.
 

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Re: boost level (Oldman)

So, is that ducting across the front of the ST engine the charge pipe? In ours, it's metal, and drops below the engine across to the driver's side, then routes across the front via the IC, then elbows upward to the intake manifold. Those bends and the IC itself would account for much of the drop, no?<p><IMG SRC="http://vne-resource.iol.co.za/30/picdb/d/9/74186" BORDER="0"><p>The Wolf ST3 tricked has the same setup:<p><IMG SRC="http://eur.news1.yimg.com/eur.yimg.com/xp/dennis/20060803/10/1226468419-ford-focus-st-3-wr300.jpg" BORDER="0"><p>If you have pointers to other Focus ST engine pics and/or references, I'd be interested.<p>Tom.
 

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Re: boost level (tmtalpey)

Creepy to see a "ford duratec st" on the cover of that Volvo engine! <IMG NAME="icon" SRC="http://www.vwvortex.com/zeroforum_graphics/screwy.gif" BORDER="0">
 

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Re: boost level (Tarheelvolvo)

i run about max 1 bar of boost... <br>from discussions with tuner, thats about at the limit already. whilst 18 psi may be technically possible from a boost perpespective, im not sure how efficient the turbo will be at that level.<br>also, if i recall from seeing the ST gauges.. its not very accurate i.e. doesnt havesmall marked increments in boost levels,. plus i believe it topped out at 1 bar.<p><br>looking at the stock horsepower at the wheels, his seems a little on the high side at 192hp... <p>i remember wheni dynoed mine stock wheel HP was about 150+. currently is around 209 whp.<p>but going back to previous discussions, sometimes its hard to tell how accurate the baseline is. if you take the difference between stock WHP and tuned WHP, which IMO is a more accurate gauge of how much power is gained, rather than what the ACTUAL power is, then it looks to be about 40+ whp. which sounds about right for a tuned T5 engine.<p><br>
 

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Re: boost level (Oldman)

Be happy. lower boost, same results. always better.<p>I guess the Focus guys are pushing higher temp air. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/wink.gif" BORDER="0">
 

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Re: boost level (Johann)

true, but if some guys are getting 15 PSI, well 14.7, and some 18 PSI, then I have to wonder why I only see 13 PSI... especailly in the mid range where I would assume there can be a little more boost. I have the stage III now so I would expect more, I'll wait a few months till it gets cooler.
 
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