Top Speed
#26
Zoom-Freakin'-Zoom
iTrader: (5)
http://www.garmin.com/aboutGPS/waas.html
pilot and a@p.
dont use it in the air. checked the faa site and it said that has not been implemented in all of north america.
just know that i usually get 7 ft accuracy 95% of the time when i use it. mostly on my bike.
beers
pilot and a@p.
dont use it in the air. checked the faa site and it said that has not been implemented in all of north america.
just know that i usually get 7 ft accuracy 95% of the time when i use it. mostly on my bike.
beers
#27
Free Autographed Pictures
Join Date: Jan 2004
Location: PRC
Posts: 594
Likes: 0
Received 0 Likes
on
0 Posts
I think that using the tach would be very accurate, more accurate than the speedo. I know the speedo in my toyota reads that you are going slower than the one in my rx8
#28
my garmin handheld is extremely accurate. whenever I have it with my as I drive it's usually righ taround where the car speedo is. I read that same piece in car and driver sayin gthe 8 was drag limited at 148.
#29
Chicks dig me!
Join Date: Jan 2004
Location: What Happens in Vegas, Stays in Vegas!
Posts: 511
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by Britelight
Top Speed is Electronically limited to 148mph (at least that's what the Mag review said and they are ALWAYS right!)
Top Speed is Electronically limited to 148mph (at least that's what the Mag review said and they are ALWAYS right!)
#30
Also the faster you go, the less accurate it becomes. I had 131 on the speedo and GPS registered 126
It also probably varies from car to car.
As to the tach, I wouldn't trust the tach with too much accuracy either - I know a guy who had a Apexi SFC in his FC and the rpm's it measured was off by 100-500 rpms from the tach, increasing as it got higher. I'd guesstimate that the tach is probably +/- 250 rpms.
It also probably varies from car to car.
As to the tach, I wouldn't trust the tach with too much accuracy either - I know a guy who had a Apexi SFC in his FC and the rpm's it measured was off by 100-500 rpms from the tach, increasing as it got higher. I'd guesstimate that the tach is probably +/- 250 rpms.
#32
Registered
Join Date: Oct 2003
Location: Near Redmond, Wa
Posts: 37
Likes: 0
Received 0 Likes
on
0 Posts
The final say on WAAS
Waas is available and it does work. It may not be "officially" blessed by the FAA for inflight use, but I get 9 foot (3 meter) or better accuracy when the WAAS birds lock up.
On my drives I can usually see both WAAS satellites (#35 and #47) locked.
Here is what Garmin has to say about it: http://www.garmin.com/aboutGPS/waas.html
"...Currently, WAAS satellite coverage is only available in North America. ..."
Steve
On my drives I can usually see both WAAS satellites (#35 and #47) locked.
Here is what Garmin has to say about it: http://www.garmin.com/aboutGPS/waas.html
"...Currently, WAAS satellite coverage is only available in North America. ..."
Steve
#35
Registered User
Join Date: Apr 2004
Location: Atlanta
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
135, thats with the 8000 worth of damage to my 3 week old car some guy from out of town did when he blew through a redlight and nailed my passenger side. I figured if I got pulled over I could tell them I was pissed about my accident!
My poor car is in the shop now getting a new bumper, rear door, rear quarted panel, Rim and tire. A little faster and I would be getting a new car.
My poor car is in the shop now getting a new bumper, rear door, rear quarted panel, Rim and tire. A little faster and I would be getting a new car.
#37
Registered User
Join Date: Apr 2004
Location: Atlanta
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
I have been 120+ in a few different vehicles as I am sure a lot of you have. The only one that compared to how my RX8 felt at those speeds was my S2000 which I sold to get my RX8. Honestly, the RX8 felt more stable at every speed.
#38
Originally posted by sferrett
Also the faster you go, the less accurate it becomes. I had 131 on the speedo and GPS registered 126
Also the faster you go, the less accurate it becomes. I had 131 on the speedo and GPS registered 126
I have lots of data that shows the speedometer is of by 2% high, 1 MPH at 50 and 2Mph at 100. This is compared to the GPS, which matches other cars spedo's perfectly. I also get the same 2% error when comparing it to the ECU speed unsing the CAN Bus. I also have data that shows the Odometer match the speedometer, and it too is 2% off, when compared to the GPS and to the CAN BUS.
MY GPS is WAAS as well.
Last edited by randyrx8; 04-22-2004 at 02:12 PM.
#40
Originally posted by kbull
Only been to 115, but the car felt STABLE. Could've been doing 65 for the way it felt. How does it hold up to the higher speeds? Still rock solid at 130-140?
Only been to 115, but the car felt STABLE. Could've been doing 65 for the way it felt. How does it hold up to the higher speeds? Still rock solid at 130-140?
I was surprised, I expected the shape to hold the front end down.
I was wondering, if you look under the front of the car and see the angle of the radiator, wont the air flow cause a lifting force as describe in this crappy illustration?
#41
Originally posted by swoope
nope,
waas enabled gps reciever, odometer is dead accurate. the speedo is of buy 1.6 mph at all reasonable speeds.
beere
nope,
waas enabled gps reciever, odometer is dead accurate. the speedo is of buy 1.6 mph at all reasonable speeds.
beere
#43
Zoom-Freakin'-Zoom
iTrader: (5)
did 3/4 of a tank ~ 230 miles between orlando and naples. mostly straight roads. gps accuracy at 7ft most of the time. at the end of the 230 it was of by .6
of a mile.
as to speed i know it seems to be off by 1.6 from 30mph to about 85. as to faster never looked. i have seen 134 gps indicated but never looked at the speedo.
beers
of a mile.
as to speed i know it seems to be off by 1.6 from 30mph to about 85. as to faster never looked. i have seen 134 gps indicated but never looked at the speedo.
beers
#44
nice wheels randy! if that car had a 600/600 hp, torque it would still not get past 80 with the drag coeficient! whoooooo! j/k my 8 feels more solid than my wrx did at 120 and my brothers s2000. feels like a true roadster at high speeds
#46
Absolute Rotary Madness
Join Date: Mar 2004
Location: Thessaloniki, Greece
Posts: 1,291
Likes: 0
Received 0 Likes
on
0 Posts
Real happy to hear the 8 is more stable compared to other japanese cars, but it definately finds its match with german opposition. Got my brother's Audi S3 to 250km/h (that's 155+mph) and... that's what stability and low noise levels are meant to be! Police car showed up right after I decided to back down, thank god!
-=My rx-8 got VERY easily to 135mph, didn't want to push it more 'cause it's still new. Two people here in Greece claimed they saw 265km/h(165mph) in the meter.
Sounds too much to me=-
![Cool](https://www.rx8club.com/images/smilies/cool.gif)
-=My rx-8 got VERY easily to 135mph, didn't want to push it more 'cause it's still new. Two people here in Greece claimed they saw 265km/h(165mph) in the meter.
![Confused](https://www.rx8club.com/images/smilies/confused.gif)
#48
Senior Jackass
Join Date: Apr 2004
Location: San Diego
Posts: 203
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by randyrx8
It felt like the front was getting light at 128 MPH, so I slowed down.
I was surprised, I expected the shape to hold the front end down.
I was wondering, if you look under the front of the car and see the angle of the radiator, wont the air flow cause a lifting force as describe in this crappy illustration?
It felt like the front was getting light at 128 MPH, so I slowed down.
I was surprised, I expected the shape to hold the front end down.
I was wondering, if you look under the front of the car and see the angle of the radiator, wont the air flow cause a lifting force as describe in this crappy illustration?
#49
This car is very stable, and now with the MS suspension and spoiler is rock solid, had her up to 142 (corrected with GPS) the other day, only car on a limited access road... The front and rear were planted solid no wandering, tracked very well... With 320HP this car will easily go into the 170s in six gear... Better than the 996 C2...
#50
Originally posted by rx8miami
nice wheels randy! if that car had a 600/600 hp, torque it would still not get past 80 with the drag coeficient! whoooooo! j/k my 8 feels more solid than my wrx did at 120 and my brothers s2000. feels like a true roadster at high speeds
nice wheels randy! if that car had a 600/600 hp, torque it would still not get past 80 with the drag coeficient! whoooooo! j/k my 8 feels more solid than my wrx did at 120 and my brothers s2000. feels like a true roadster at high speeds
it just seems with the air flow directed at the angle radiator if might produce some lift. Not enough to lift the whole car, it will lessen the force on the wheels...
Last edited by randyrx8; 04-22-2004 at 03:47 PM.