shelleys_man_06

Cool.

I've gone 130+ mph while having some fun with a ZO6.

Phlash

135 on a pass (highway) to show an s2000 owner once and for all the limitations of his little (but strong) vtec. He caught me at a light later and stated that it was pushing all it had and 125 was the best he ever saw out of his car. We had miggled on the highway a couple times but never runs up like this time....

irfan

old topic i know, but i remember reading the Cd was a .30, which isnt the most aerodynamic vehicle on the road at all. to answer the previous question... yes torque has 1/2 to do with it, since HP is [(Torque x RPM) / 5250].... the other half is the Cd....

this is assuming the gearing isnt a limitation... and with a theoretical 186mph (btw- Z rated tires are rated for 149+mph.. to answer another question asked before).,.. it can be assumed that the aerodynamics are really causing the lower that theoretical results. either that or give it a LOT more power... but aero's can be easier to fix than adding another 500hp.

rx8pilot

sorry man..but i call b.s. on that one.. as a prior S2000 owner myself before trading up to the more creature comfort rx-8...and can personaly verify that the S2000 is no doubt a quicker car. i had mine north of 150 on many ocassion. it is a MUCH louder car at that speed than the rx-8 though. but i must admit i do kinda miss that 4-cyl scream (and kick) after it hit 5,600 rpm and the 2nd cam profile kicked in... *sigh* i did the right thing trading it in right????


yeah..i think so...

swoope

iTrader: (5)

for me it was 138 waas gps. in 5th gear still pulling well. 82deg and high humidity.

the two things that i know about top speed runs in this car. radatior temp is important as is fuel temp. the car knows and adjusts.

also you need to have over .25 tank of fuel or it will throttle back and give a cel.

how do it know???? car is smart.

beers

john stewar

Morgan

umm..my car must be broken then because i've had mine up around 7500 in 6th gear STOCK at 149...i probably would have tried to faster, but my exit was coming up...

oreo

I had mine on 143 MPH on 6th. I dont know the tach because I didn't dare look back down,

3 seconds later I hat to brake real hard because of an a-hole post man car that crossed 3 lanes from the right to the left in front of me. Thank god for DSC and not panicking and doing somthing stupid like turning the wheel while breaking that hard. BTW this thing breaks almost like hitting a brick wall even with the ABS fully functioning. Thumbs up for Mazda.

Iherd someware that the top speed was rev limited not aereodinamicaly limited. does this mean that if we fiddle around with the computer and eliminate that nasty rev limiter on the top end we might go higher?

G8rboy

While I'm sure this car can go over 150mph, in what possible situation would you need to go faster than 143mph???? Seriously...

Ellar

You just ate Taco Bell from a drive-through, and somethin's a rumblin' down low...

Feras

iTrader: (1)

to those of us who've gone 150+ (myself included) do we actually need more speed...and for what application...it took quite a bit of time to get to over 150. I think id rather get up to 150 faster than have a higher top speed.

watte??

Did 250km/h (= 156mph) on the German autobahn a few weeks ago.
The car was running 8000rpm in 6th gear and did not want to go faster.
It just kept on running 8000rpm without ups or downs.
To me it seemed like the car is restricted to 250km/h like most european cars.

To me it was fast enough :-)
Rather have fast cornering and faster 0-100km/h.

FYI

misterwilson007

135 in 5th w/plenty to spare

bryrx804

same here 6th at 137 and still was goin up.

red_rx8_red_int

Absolutely! In first you hit redline from say 5k much much faster (timewise) than in 4th or 5th. If it takes 3 secs in first then it seems to take 9 in 3rd, 15 in 4th and 30 in fifth. I think 550 HP would be more fun, so can we count on a four rotor version?

xx3marx8xx

i got my top speed on my rx-8 up to 149....but it got really shakey i was going down hill on a major highway.

DJFishstix

on one sunny day in the summer on an open and yet slightly windy road, I was able to get up to 149mph before i had to slow down. Well I was a little bit pissed off because i was catching up to cars and since i never drove 150mph, i decided to try it again. Luckily i had a party to dj at in vermont about 1/2hr north of white river junction. On my way home I was going about 80 when i noticed that i was on a huge downward roller coaster hill that was probably close to a mile long. Dropped it to 3rd, redlined it, and the same with 4th, 5th & 6th gears. I was able to hit 153mph near the bottom of the hill before i had to start to slow down for oncoming traffic. As far as what was in my car at the time ...... almost a full tank of gas (probably lost a 1/2 of tank on the downhill), 2 people, a couple of bags in the trunk and a crate of records. It was a great rush and i cant wait to do it again. Oh yeah, one more thing .... once you hit top speed, you do need mod.'s to hit a new higher top speed.

have fun and be safe
speed kills, but it beats going slow
and don't forget .... drive it like you stole it!

Purple Helmet

i took my rx8 up to 140 mph with ease, Had there been less traffic I could have easily hit 150mph and no semis or G-35s

310Guy

You guys are all idiots.


The moderators delete street racing threads but leave this crap on the board... go figure...

What is it going to take? Someone to crash and die testing their top speed?

All this thread is asking is for members to go out and speed on public roads. Brilliant, just brilliant.




Hopefully someday you'll understand where I'm coming from and how stupid this is.

Irish_in_a_RX8

iTrader: (1)

Theres a difference 310. Technically, measuring top speeds 'should be' on a track rather than flying down the highway like some seem to think is quite cool! I am sure I speak for other mods that we do not approve of such foolishness.

I personally have never gone over a 100. It will stay that why until I finally find a local track. I advise others should do the same, and if not, think of the folks that are on the road with you. Its not worth it just to see triple digits.

My thoughts....

Wayne

legokcen

See Avatar....

TRZ750

Hey you theroletical guys - The drag coefficient is not the whole story. You need to know the frontal area. A 747 may have a CD lower than the RX8, but it takes a lot more power because it is so large. The RX8 has more frontal area than the older RX7s so slower with the same power (but stock the 8 has much more) and poorer freeway mileage.

SHOWOFF

142 MPH, ran out of room.

When I was still driving the car daily to and from work I would usually hit 124 - 128 MPH on the same stretch in the morning.

Since I had a little wreck with the car (going 10 mph) I feel differently about it now. I won't even give a riced Civic the satisfaction of getting it's *** kicked.

Things change.

ManguSpeed

147 Mph in sixth... still was gaining... level ground.

webguy2003

I had mine up to 130 in 4th at redline level groud

SOVINE

i like having an intake and loud exhaust and sound polluting at 9k rev on a street next to an outside cafe. they boo me because their ears hurtzors.