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-   -   Top Speed/RX-8 (https://www.rx8club.com/rx-8-discussion-3/top-speed-rx-8-a-164518/)

Renesis07 01-14-2009 04:58 PM

I couldnt tell, It was so slow but I stopped climbing at 148, kept it there for a couple seconds then let off.

I hit that on a slight downhill BTW, until that downhill I couldnt get over 147.

dozer 01-14-2009 04:59 PM

^no...

Easy_E1 01-14-2009 05:04 PM

I believe that the top speed issue is from the drag coefficient and a lack of HP/TORQUE while stock.
There is not a governor on the MT. Other than design.

Renesis07 01-14-2009 05:11 PM


Originally Posted by dozer (Post 2816724)
^no...

no what?

dozer 01-14-2009 05:16 PM

easys question

tubingchamp 01-14-2009 05:18 PM


Originally Posted by Easy_E1 (Post 2816728)
I believe that the top speed issue is from the drag coefficient and a lack of HP/TORQUE while stock.
There is not a governor on the MT. Other than design.

The only governor is..http://blogs.edweek.org/edweek/thisw...governator.jpg

DarkLord7854 01-14-2009 05:25 PM


Originally Posted by Easy_E1 (Post 2816715)
Answer me this question,,
If the engine had a "Governor" like the AT models do. (And then not all.) Would you not feel the effects of the governor? I do when my car hits 125 on the track. It turns off. Just like turning the key off.
Now has anyone ever experienced that with a MT?


Nope

Socket7 01-14-2009 05:30 PM


Originally Posted by Easy_E1 (Post 2816715)
Answer me this question,,
If the engine had a "Governor" like the AT models do. (And then not all.) Would you not feel the effects of the governor? I do when my car hits 125 on the track. It turns off. Just like turning the key off.
Now has anyone ever experienced that with a MT?

I've hit the fuel cutoff a couple times, but no governor. Boy is that an unsettling sensation.

Easy_E1 01-14-2009 05:34 PM


Originally Posted by Socket7 (Post 2816776)
I've hit the fuel cutoff a couple times, but no governor. Boy is that an unsettling sensation.

But that was due to over revving the engine, correct? I think everybody has done that at least once.

tubingchamp 01-14-2009 05:35 PM

Ditto with fuel cutoff..

It's like, moving forward and accelerating then instantly stops gaining momentum, sounds kind of odd too..

dozer 01-14-2009 05:36 PM


Originally Posted by Easy_E1 (Post 2816785)
But that was due to over revving the engine, correct? I think everybody has done that at least once.

i havent

Easy_E1 01-14-2009 05:41 PM


Originally Posted by dozer (Post 2816790)
i havent

That's because your special! :uhh:

chancejat 01-14-2009 05:42 PM


Originally Posted by dozer (Post 2816790)
i havent

if youve never hit fuel cut off b4..then you need to start having more fun when you drive....i hit it every now+then and i usually try to shift right b4 it hits

TheBurkeMan 01-14-2009 06:13 PM

what rpm does the fuel cut off, i've hit it i just cant remember what rpm.

Renesis07 01-14-2009 06:15 PM


Originally Posted by TheBurkeMan (Post 2816865)
what rpm does the fuel cut off, i've hit it i just cant remember what rpm.

9000 or 9200 ish?

alienRX8 01-14-2009 06:18 PM

I have plenty fun and have never hit fuel cut-off either

TheBurkeMan 01-14-2009 06:20 PM

i thought it was more like 9500 ish?

ca18detsilvia 01-14-2009 07:00 PM

I hit 153 confirmed by GPS..... and the factory speedo was way off, the last 15-20mph seemed like it took forever though

DRKSYDE 01-20-2009 09:20 AM


Originally Posted by kersh4w (Post 2816705)
149 in 5th.

from the top of 4th it wasnt painfully slow, maybe .5mph per second.

I was in 5th as well. Didn't dare go to 6th... not nearly enough road.

zoom44 01-20-2009 09:31 AM


Originally Posted by Renesis07 (Post 2816567)

Until I see some proof, Im going off facts. Governed at 148.

your "facts" are wrong. the US 6port 6mts have never had an electronic limiter. the proof is easily found on a dyno , at the track or now simply by using something like the cobb. you'll find thru reading that this info has been known since 2003.

i personally have seen 155 on a dyno

DarkLord7854 01-20-2009 09:44 AM

151mph this weekend, GPS confirmed, it took a slight downhill slope but when road level'ed it kept up. My oil light went off right after though :p:

I was in 6th FYI. 5th doesn't get me past 137mph.

RIWWP 01-20-2009 09:59 AM

I'd argue that there isn't a governor for US MT 8s. I would have a hard time believing that a governor was added at a speed just past the stock drag-limited max speed. The main reason I don't believe there is a governor is from ... damn I can't find it. Still looking, but a youtube video.
On jack stands 6th gear, 180mph on the speedo. (5th hit the limiter at 153) If there was a governor anywhere before that, it would have kicked in, unless your going to argue that the computer knows that it really isn't going that fast? :)

Edit:
Here is is: http://www.youtube.com/watch?v=hE7p-D-PBeI

Edit:
Not saying 180mph is the top speed, since it doesn't look like he actually hit the rev limiter in 6th. Seems different from another one I saw that did a 0->186mph in 6th, not shifting on the way up, and it was a significantly faster rev, since he didn't have wheels/tires on. This one looks like it had some resistance to it, so probably still had the wheels/tires still on.

Marklar 01-20-2009 05:49 PM

I've never hit the fuel cut-off, and I rev my car up all the time. I shift at 8500 or below; I see no reason to go over 8500, maybe there's a bit more power after that but I don't need it.

04RX8man 01-20-2009 05:54 PM

Fuel cutoff is like 9300-9400 rpms....

alz0rz 01-20-2009 05:56 PM

I have no comment on that video.

180mph.. on jackstands..


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