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1.8 top speed?

Posted: June 21st, 2004, 8:10 pm
by pickinganame
i was just woundering what is the fastest someone has took there 1.8 till it was at its top speed just curious... :)

Re: 1.8 top speed?

Posted: June 21st, 2004, 8:27 pm
by Trevor
why don't u figure it out with ur's
lol
at a closed track of course

Re: 1.8 top speed?

Posted: June 21st, 2004, 8:35 pm
by fIyingchopstick
+


138 mph :: cough cough :: on a track of course... hehe.. This took quite a long time to do also.. So I wouldnt recommend trying it..


138mph

Re: 1.8 top speed?

Posted: June 21st, 2004, 8:39 pm
by lakersfan1
About 130's the highest I went. Had a bit left on the tachometer, but didn't want to push my luck since I was starting to come out of unpopulated desert area into metro area. Just ran up to touch it, then dropped back to cruising speed (100mph). I could see 138 on the speedo with a tailwind. Not sure how accurate the speedo is, though.

Re: 1.8 top speed?

Posted: June 21st, 2004, 9:37 pm
by MX3-Freak
The abosolute top speed of a k-8 completely stock is about 127 mph. This is fugured out by red line, gear ratio and tire size. If you have larger tires, you will go faster, but your speedo will read slower.

Anyways, a k-8 with stock tranny and rims will go no faster then about 127mph without exceeding the redline. Everyone's 130 claims are slighlty inaccurate speedos (Check your odometer in a five mile test and you will see I'm right); mazda isnt perfect.

<small>[ June 21, 2004, 08:40 PM: Message edited by: MX3-Freak ]</small>

Re: 1.8 top speed?

Posted: June 22nd, 2004, 1:13 am
by ssmog
Will have to get a complete dyno done when I take my mx-3 in for an e-test this summer because according to my speedo I have had mine up to 235 km/h.....in English that's what?....approx. 140.3 m/h? Mind you that was on a nice open road with not much to dodge but the odd piece of road kill.

Re: 1.8 top speed?

Posted: June 22nd, 2004, 1:19 am
by ninjasteve
i had mine up to around 210 km/h so around 131mph and i was still accelerating slowly but i had to slow down cuz i was coming up behind someone.....yes....on a track.....

Re: 1.8 top speed?

Posted: June 22nd, 2004, 2:30 am
by RoundTop
I've only had my stock MX-3 GS up to 105MPH so far..had to slow down due to upcomming traffic... was still accellerating when I pulled off.

No, I was not on a track.

Re: 1.8 top speed?

Posted: June 22nd, 2004, 1:07 pm
by valdigre
Well I did 200 km/h (about 124 mph) and it was with the engine speed of 6500 rpms... So I had like 700 more rpms spared meaning I would probably do the suggested 210 km/h (130 mph). I still don't know if Iyingchopstick's mx-3 is stock but it seems unbeliveable to reach that high speed with standard one.
Anyways i reached mine on normal road...It was empty though but imagine how focused i was... :driver:

Re: 1.8 top speed?

Posted: June 22nd, 2004, 1:20 pm
by SIXPACK
I got 210 km/h on my 15" stock rims and winter tires. it would be fun to have a 6th gear :D

Re: 1.8 top speed?

Posted: June 22nd, 2004, 3:36 pm
by Gro Harlem
i've nver had mine past 115....i don't really care how fast it can go, as long as its fast enough to keep up with traffic on the highway.

Top speed should be 132 according to the tire size, gear ratio, final drive & RPM limit, of course it'll go up higher b/c of the fuel cutoff which is around 7400rpm. By then you should be up past 140 a little bit.

My 626 tranny should allow me to surpass 150 if I try, but I won't b/c its stupid revving your car that high for such a prolonged period of time since it takes a long time for your engine to overcome the wind resistance and crap.

Re: 1.8 top speed?

Posted: June 22nd, 2004, 7:44 pm
by killerpickle
i believe fuel cut off was 7800 was it not?

Re: 1.8 top speed?

Posted: June 22nd, 2004, 9:00 pm
by fIyingchopstick
My car was all stock at the time accept for a full catback and k&n in the box.. It was with 95k on the odometer.. And I've hit somewhere around 132-135 every time after that with upwards of 150k on the odometer..

Re: 1.8 top speed?

Posted: June 22nd, 2004, 9:31 pm
by mitmaks
had mine at 126mph last summer

Re: 1.8 top speed?

Posted: June 22nd, 2004, 9:59 pm
by Nd4SpdSe
isnt the k8 governed at 190km/h? When i tried once with my k8 i topped at 190km/h and couldn't go any faster