02-05-2014, 05:18 AM
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#1
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Registered User
Join Date: Oct 2011
Location: Fargo, ND
Posts: 44
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GPS recorded 150. I didn't look at the speedometer, was to busy looking at the road. Location undisclosed...
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02-06-2014, 04:34 PM
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#2
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DIY extremist
Join Date: Jul 2011
Location: Brooklyn
Posts: 348
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150 indicated, backed off once we hit the ton-and-a-half we were shooting for.
Utah Desert near Moab, with a spotter 2 miles ahead. Car had a lot more but the road surface didn't. Then did a 120-60 mph braking test that was way more exciting 
Meant to do a 0-150-0 timed test at the airport in the 991 C2S before selling, but never found the time and now it doesn't really belong to me anymore (buyer picking up in 2 weeks).
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"Betty" -- 2000 Boxster S, Triple Black, loaded except PSM (sold to a good home)
"Veronica" -- 2008 Boxster S, Arctic Silver on Blue
"Maleficent" -- 2007 Cayman S, Red and Black, TPC Turbo 3.6L 460 RWHP, H&R RSS Coilover / TPC stage 2 suspension
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02-07-2014, 09:55 AM
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#3
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Registered User
Join Date: Dec 2013
Location: Chicago
Posts: 141
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Haven't driven my boxster yet, boo hoo 
Car:
RX7 FD 156mph
Motorcycle
ZX10R 185mph
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Black on Black 2001 Boxster Base
Clutch Masters Stage III Clutch
Luk Flywheel // IMS Retrofit // Rear Main Seal
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02-07-2014, 07:52 PM
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#4
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Registered User
Join Date: May 2013
Location: St Charles IL
Posts: 20
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Only about 110 mph on I-290 in Chi town in the Boxster. 230 kph in a BMW 118d on the A5 in Germany. An indicated 165 mph on the M3 back in the UK when I was (much) younger on a Kawasaki Ninja. Those were the days before marriage and speed cameras!
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02-09-2014, 05:29 PM
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#5
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Registered User
Join Date: Jul 2013
Location: Simi Valley
Posts: 153
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180 in a T-Rex, 120 in a S600 V12, 100 in the Boxster
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99' 986 Porsche Boxster - Glacier White/Black interior, 19" ALT Miro Type 371 Wheels, ROW M030 Kit, RSS 7mm Wheel spacers, Smoked Depot Brake lights, Smoked 3rd Brake light, Bosch Smoked side markers/headlight corners, Desnorkeled, Modified Air Filter, Carbon Fiber door sills, Plasti-dipped side mirrors/air ducts, debadged rear, black hood crest, Keyhole delete, Much more to come, stay tuned... 
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11-13-2015, 05:39 PM
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#6
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Registered User
Join Date: Jan 2011
Location: Texas
Posts: 70
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147 in my 2004 Chrysler Crossfire
140 in my 2001 Boxster S
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11-13-2015, 05:56 PM
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#7
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Registered User
Join Date: Jul 2013
Location: Bastrop, Tx
Posts: 2,644
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I have nothing to brag about when it comes to top speed in a boxster. 60mph! Woohoo!
But I did 120mph on an ice covered road in Alaska with my 1970 Olds Cutlass. I was 18 and I just got my speedometer working and I wanted to see if I could peg it out. Young, dumb and full of something else. I wasn't the driver, but a friend gave me a 161mph ride in his McLaren at COTA.
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Woody
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11-14-2015, 05:09 AM
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#8
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Registered User
Join Date: Oct 2015
Location: Rockland Ontario
Posts: 208
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225KPH in my 2008 Nissan 350Z and 140KPH in my Boxster S.
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11-14-2015, 05:52 AM
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#9
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Registered User
Join Date: Mar 2013
Location: New York
Posts: 347
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175. Indy car. Non turbo. Las Vegas.
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11-14-2015, 01:23 PM
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#10
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Registered User
Join Date: Sep 2006
Location: Omaha
Posts: 2,947
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Traqmate certified in my Cayman S Sport:
only 130 at COTA & Indy (updated 5/5/18)
135 at KS Speedway in 2014, with several laps in the 130s
Was hoping for 140 at KS Speedway this yr, but the DE was cancelled after 3 sessions in a dispute between NASA & the Speedway. I had been working my way up the ladder with a top speed of 127.
Since my speed runs are on the track, no chance for a visit to the Gray Bar Hotel.
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GPRPCA Chief Driving Instructor
2008 Boxster S Limited Edition #005
2008 Cayman S Sport - Signal Green
1989 928 S4 5 spd - black
Last edited by husker boxster; 05-05-2018 at 03:14 PM.
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11-14-2015, 01:41 PM
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#11
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Registered User
Join Date: Jun 2014
Location: LB, Germany
Posts: 1,514
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279 km/h on the odo in my Box S.
285 Km/h on the odo on a Bimota YB6.
Last edited by Smallblock454; 11-14-2015 at 01:49 PM.
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11-14-2015, 02:43 PM
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#12
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Registered User
Join Date: Oct 2008
Location: O.C. CA
Posts: 3,709
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105 mph in my Box on the straightaway @ Streets of Willow CA. Both ways uphill or down same max speed.
In 4 other cars in various places 135 mph, always thinking about what happens if I hit something that blows a tire makes me lift.
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OE engine rebuilt,3.6 litre LN Engineering billet sleeves,triple row IMSB,LN rods. Deep sump oil pan with DT40 oil.
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11-14-2015, 03:45 PM
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#13
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Registered User
Join Date: Nov 2014
Location: Morrison CO
Posts: 62
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140 in my BMW 745. Smooth as ever, felt like I was going 90. I honestly wouldn't want to do that in the box.
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11-14-2015, 08:42 PM
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#14
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Registered User
Join Date: Oct 2014
Location: Santa Rosa, CA
Posts: 520
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Took 135 MPH on the freeway during the morning commute
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2003 2.7 Boxster - Tiptronic - Carrera wheels - OBC - Red calipers - Cat pipes - Modified muffler - Rear speakers - K&N - Litronics
2006 V6 Mustang
2008 ML 350
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11-14-2015, 10:41 PM
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#15
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Registered User
Join Date: Jun 2013
Location: Nanaimo, Vancouver Island, British Columbia, Canada
Posts: 906
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260 km/h lots of straight left and empty highway
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11-16-2015, 04:51 AM
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#16
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01101
Join Date: Jul 2015
Location: CT
Posts: 587
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Speedo ended at 100, but fuel cutoff on my jeep was 114mph. I ran into it surprisingly fast.
Plug in programmer upped top speed to 128, but I never got that high
Touched 155 in my b5s4
Box has seen middle 120's
All indicated speeds were recorded in Mexico.
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05-04-2018, 10:50 PM
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#17
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Registered User
Join Date: Feb 2017
Location: CO
Posts: 989
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125 in the Box
140 Triumph Speed Triple
175 Indy Cart Car Las Vegas
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05-05-2018, 10:47 AM
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#18
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Registered User
Join Date: Oct 2008
Location: O.C. CA
Posts: 3,709
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140 going up a 45 degree grade.
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OE engine rebuilt,3.6 litre LN Engineering billet sleeves,triple row IMSB,LN rods. Deep sump oil pan with DT40 oil.
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05-05-2018, 02:16 PM
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#19
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Registered User
Join Date: Feb 2017
Location: North Eastern US
Posts: 646
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Your top speed?
An effortless 148 mph (per my gps) in my 2005 Jaguar XKR. Love my 986s, but I really miss my XKR with its supercharged 4.2 liter V8. It was a true luxury GT (and my daily driver when we returned to Houston after our 10 year expatriation).
I haven’t had the chance to take my 986 over 100 mph.
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Rgds, Fred
#317 550 Spyder Anniversary Edition 2004 Boxster S, 3.8L Flat Six Innovations engine, PSS9s, etc, etc . . .
The contents of my posts are for entertainment only. As confirmed by my many motor sports fails, I am not qualified to give product endorsements or mechanical advice 
Last edited by Oldcarguy; 05-08-2018 at 11:54 PM.
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05-06-2018, 10:41 AM
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#20
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Registered User
Join Date: Oct 2008
Location: O.C. CA
Posts: 3,709
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[QUOTE=Oldcarguy;569561]An effortless 148 MPH (per my gps) in my 2005 Jaguar XKR. Love my 986s, but I really miss my XKR with its supercharged 4.2 liter V8. It was a true luxury GT (and my daily driver when we returned to Houston after our 10 year expatriation).
You have good taste, Here's my former XJR:
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OE engine rebuilt,3.6 litre LN Engineering billet sleeves,triple row IMSB,LN rods. Deep sump oil pan with DT40 oil.
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2003 Boxster S
Mean Motor Scooter
Boxster
Hybrid Mode
