fastest ive ever gone was 165 on route 39 in ohio. the back end feels really scary at those speeds, how do you fix that? at those speeds do you start needing 'real' aerodynamic helpers like wings, rear diffusers, side skirts, super low front end, canards? and how much of a difference does it make? anyone track their car a lot and can tell us?

 

you probably need to do your rear bushings onelife. makes a world of difference

 

175 Baby!!!:d

 

55

 

i remember now i had GAB adjustable shocks on at the time, but other than that at 165-170 the rear end didnt feel scary, but i dunno, i hear we need downforce upgrades at that point

 

well whatever a jdm tranny (shorter 5th), 4.77 gears, and 275/40-r17 tires tops out at + power mods

all i know is my spedo was buried for a while
i made it from lincoln NE to omaha NE in 18 min
The scary thing is 160 mph dont even seem fast anymore in my car

 

YES!!!! You do need downforce upgrades at that point! I would strongly advise against anyone going over 140mph in their car without doing certain things to your vehichle to increase downforce. Anyone that has been around long enough(prior to 2000) knows and prob. remembers that the FD can lose it at a high rate of speed. Please keep that in mind and be careful.

 

Ha, I just looked up how long that trip is "supposed" to take, following speed limits. 1 Hour 2 Minutes......Damn you were hauling.

 

uhm, 260 kph, or approx 160 mph...

 

after i installed the PFC, i wound it out to about 170MPH. then i changed my underoos! lol

 

265km/hr... but in my old 3000GT. Even that thing was light at speed, I'd hate to think about an FD!

Short run showing how long the gears are...
http://old.jaws.net.nz/launch-edit.mpg (ignore me almost dropping the camera whilst trying to shift :P)

 

143mph in my RX-8. not too impressed with the sixth gear. just doesn't want to go any faster. oh well, soon to have an FD. w00t.

 

160 mph on I-405 in Kirkland, WA then I **** my pants cuz it started raining.... A couple of Honda's were racing so I figured I'd show em up and I just never got off the throttle until I had to turn

 

165+ with more to go but we were racing from onramp to offramp and ran out of real estate...it did feel as if it had more to go.

One of these days i'll top it out...pull up the commander's KPH read out when the speedo is nailed lol

 

maybe something is wrong with my car, or maybe it's the 245/45 tires, but I was nowhere near 140 at the top of 4th.

 

I'm constantly at 140+mph at the top of 4th

 

i am at 125 at the top of 4th.

(4.77s and i found out on the dyno)

 

I have had my FD up to 160 on the freeway against some stupid kid in a Civic who thought he could beat me......... Yea I didn't see him after 3rd gear........ or 4th............... or 5th......... Earlier that day I had it up to 155 and someone told me it was governed at 155 so I decided to prove him wrong in the process of "racing" if you can even call that a race.....

Hey Jimmy thanks for the info on the S4 I'm pickin one of those up this summer for my daily driver!!!!!

 

A quick burst of 90-160 in the FD late at night going to surprise my wife for the holidays that I got off of work earlier then she expected. It was Christmas 2005... I slowed down soon as i saw it hit 160... I didnt think it would get to that as fast as it did with a downpipe and exhaust. Slowed down then set cruise for 90 the rest of the way... that was the only time. Oh its an Auto FD.

 

the fastest ive gotten my fd was slightly over 150..... the fastest ive ever been was 190 in my friends '06 porsche 911 turbo cab.. we raced some vettes and camaros and other generic US cars and i couldnt believe how fast that car could take off and just keep accelerating. we were racing w some ss and took off from the start and decided to show him how much faster that car is... i was just looking straight ahead at how fast the lines were starting to get and looked down to see 175 on the digital readout....next time i looked down i saw 190 and creeping....it seemed like it still had some room to go.. it felt like i was cruising at 70mph because of how stable that car is. i was so impressed w that car... we had two 170lb passengers and one 280lb....as well as our luggage.. it was rediculous how fast that car could take turns also...an fd would be dead in the situations i was in... nearly full throttle onto onramps w 455hp....god bless Porsche engineers with their pasm and awd...i cant wait till he gets his exhaust, intake and ecu upgrades...

 

Not always good to suprise the wife with an early return

 

If he's still alive... that's awfully fast, especially for a convertible.

I had my convertible topped out for ahout half an hour straight. The speedo showed 120 but I was really only going a little over 110. It may have had no power but I've never had more fun than I had in my 1992 Miata.

 

My buzzer seems to go off at 7800 (assume factory gave a 200 rpm warning), do not know where stock rev limiter is set, I have gone past 8000 a hair in 3rd and 4th, but do know I have hit it in 2nd autocrossing, just don't know what the reading was.

I set my PFC at something slightly above 8000, forget exact figure.

 

As I posted before 172 gauge on Tx 259 with stock ECU, gearing and 245/45 tires.
155 Texas Motor Speedway in turn 3. Recent with PFC etc, 145 front straight CCW Texas World Speedway .. passing a Porsche GT3.

Car stability; I drove on same part that I did 172 to test out new PFC, IC etc., but with a messed up (cracked) undertray .. car damn near felt suicidal, I backed off before 150.

Regarding aerodynamics, little things can make a big big difference in stability. The car can be very stable at speed; but wheel alignment, shocks, body trim (angle down at front), body parts must all be right.

 

170mph with 300-400 revs left in the FD
Fastest iv been is 205mph in a Murcielago