11-19-2009, 05:42 AM
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#1
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Registered User
Join Date: Mar 2008
Location: Dallas, TX
Posts: 288
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Dragon
you can go to boxsterspec.com and do a search for under pulleys, a lot of the spec boxster guys are starting to use them. One the members, Chris Amond, has his own design that I put on my car and I have been very happy with it so far
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2001 Boxster S
RUF front bumper, Techart side skirts, Gemballa rear bumper, PSS9s, Cargraphic 18" racing wheels, RUF exhaust, GT3 seats
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11-19-2009, 05:53 AM
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#2
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Registered User
Join Date: Dec 2006
Location: shoreham, ny
Posts: 1,619
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I have the RSS UDP. Got it from stuttgartperformance.com Seems to be good.
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996 3.4 engine with 2.7 986 5speed transmission
Ebay Headers, Fabspeed high flow cats, JIC Cross, IPD Plenum, H&R Coilovers, B&M Short Shifter, AEM Uego Gauge Type Analog, Apexi S-AFC Select, 987 air box, Litronics, 2000 Tails and side markers, painted center console, 18" 987 S-Wheels, GT3 Front bumper with splitter.
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11-19-2009, 07:48 AM
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#3
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Engine Surgeon
Join Date: Aug 2008
Location: Cleveland GA USA
Posts: 2,425
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We see single digits here in the dead of winter, BUT the other cold weather data will be gathered by LN Engineering on their Boxster test car that I built the engine for in March of 09. They will certainly see temps well below zero.
In the heat of the summer this pulley did awesome both on the track and the street.
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11-19-2009, 12:44 PM
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#4
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Registered User
Join Date: Sep 2009
Location: The City
Posts: 1,084
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now what is the threat here with the smaller pulley? the belt will move... slower and so affecting subsystems how?
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11-19-2009, 02:13 PM
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#5
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Registered User
Join Date: Nov 2008
Location: Massachusetts
Posts: 4,810
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I installed BBI Autosport's latest light weight UDP. I am very pleased with it. Its difficult to qualify any performance gain since it was installed along with some other upgrades. However, the car feels great, and there is plenty of data to suggest that it adds hp. 
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11-19-2009, 02:24 PM
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#6
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Registered User
Join Date: Jun 2007
Location: Colchester, CT
Posts: 489
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Thanks for all the replies. I put my stock headers back in and likely my stock muffler this weekend. I never got dyno data but car feels exactly the same. I had the original maxspeed headers. Now it makes the muffler sound lousy so back to stock till I can find a decent PSE. I want the pully and likely Pedro's techno torque instead.
Chris
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1999 986 2.5L, Stock Exhaust (S muffler), EVO Intake, 18" Stock rims (17" during winter), IMS Upgrade, 150k+ miles and counting!
87 944S brought back to life
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11-19-2009, 07:02 PM
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#7
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Registered User
Join Date: Sep 2009
Location: toronto
Posts: 2,668
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I am running the Mantis pulley at the moment with no ill-effects save some power steering pump wine on full lock while parking.....It is suppose to give 7hp. I did notice a difference when I first put it on...the engine felt it was now free to give! The car pulled just a bit hard on full throttle...this is all subjective feel of course.
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