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-   -   3 Rotor Top Speed? (https://www.rx8club.com/series-i-major-horsepower-upgrades-93/3-rotor-top-speed-215828/)

Mikami 04-28-2011 05:53 PM

3 Rotor Top Speed?
 
Yet another unanswered but sought after question that nobody ever asks.

What is a 3 rotors top speed?
As a side question (4 rotor top speed?)

Yes i know not a lot of people have 3 rotor setups and even less 4 rotor
But this has had to have been documented somewhere right?
Thanks in advance guys, I know i'm not the only one that's ever been curious.

SpencerM1 04-28-2011 06:26 PM

Mach YoMama at least if not Mach OMG.

dannobre 04-28-2011 07:12 PM

If you think about it top speed is HP, gearing and aerodynamically driven....

To many " depends" to give you a valid answer :)

Rote8 04-28-2011 07:42 PM

Both have an equal top speed if falling in a vacuum.

Mikami 04-28-2011 09:28 PM

omg...ok ok. given what you know about previous users with 3 rotor setups / average 3 rotor setup yada yada whatever you want to say to make it an average 3 rotor build. What do you think/know the average 3 rotor build could top out at? also taking into account that you pretty much have to swap out the entire transmission with one that can handle the extra hp, theres not many transmissions 3 rotor users have tried. lets take a guess here guys and stop beating around the bush with ifs and whats and blahs, make a guess, give details what you based your guess on.

WingleBeast 04-28-2011 09:33 PM

redline in 6th gear will be the same wheel speed no matter what engine is in it as long as the tranny has the same gearing, and the engine has the power to overcome resistance.

RXeligion 04-28-2011 10:02 PM

OP,

There are quite a few intelligent people on this thread trying to tell you that there is no way of guessing on your question. My guess is, not much more that 155 mph (which you can do in a stock 8 with a 6sp MT in 5th gear) You're just likely to get to that speed faster. (accelerate harder)

SayNoToPistons 04-28-2011 11:14 PM

Precisely 237.587923 MPH

alnielsen 04-29-2011 01:48 AM

With the stock gearing, an engine turning 9,000 rpm with the 6 speed transmission will top out at 186 mph. The Renesis of course doesn't make enough HP to do that. It will top out at about 150-155 due to aero drag. To go faster, you need more HP and a lower rear gear ratio.

california style 04-29-2011 03:41 AM

plus there is no such thing as an "average" 3 rotor build.
Some 3 rotors are NA. Some have MASSIVE turbos on (see Angel Joel)

bse50 04-29-2011 06:11 AM

Ask it again:
What's the top speed of a 20b build with W transmission X:Y 5th or 6th gear ratio and a final gear of Z? Tyre diameter being A, Aero Drag being a constant ('nuff pauah to go reach the limiter), rev limiter of C.
Well we have some variables lol

longpath 04-29-2011 07:14 AM

Here's a tangent: How much horsepower would actually be needed with a stock-bodied RX-8 series 1 with stock gearing and stock tire width to get to the redline limited 186mph?

Jamaalsmith 04-29-2011 12:28 PM

Im sorry...that is a pretty badly framed question. Dannobre nailed it

Mikami 04-29-2011 07:14 PM

*sigh* okay, i know my question was horribly worded, i was hoping someone would work with me here..., lets rephrase and try to salvage this thread.

If you have any details on whoevers 3-4 rotor builds that pertains to this question, please list some details.

Talic 04-30-2011 02:50 AM

taking aero dynamics/weight and mass aside.
top speed is a calculation of wheel dimention. diff ratio trans ratio and rpm

so your answer is very easy to figure out.
now throw in weight, rotating mass and aero back into the picture and if you are geared for 400mph... the vehicle will never make it.

TeamRX8 04-30-2011 06:00 AM

With enough $$$$; Mach ZOMG is even possible

california style 04-30-2011 06:16 AM

move to plaid speed!

bumblebeerx8 04-30-2011 09:08 AM

flat ground or going down a hill?

9krpmrx8 04-30-2011 09:31 AM

Fuck a 3 rotor.

http://www.turborx7.com/images/repics/6-rotor.jpg

Talic 04-30-2011 11:08 PM

i am by all means not even close to a tuner. i can modify one.. but..
how the hell can you tune for a 6 rotor?
unless it was in pairs then would be a bit easier just correct for load and timing?
i bet even MM would have a hard time? or i could be completely wrong...
and its just simple to mirror a tune with an offset for the degree of each rotor.

Beodude 05-01-2011 07:50 AM

Honestly, who cares? Have you even gotten an RX-8 stock to it's top speed? I'd say probably not. So why care about a three rotors top speed?

Jamaalsmith 05-01-2011 10:58 AM


Originally Posted by Beodude (Post 3963377)
Honestly, who cares? Have you even gotten an RX-8 stock to it's top speed? I'd say probably not. So why care about a three rotors top speed?

Yes... 147mph...downhill...lol i almost died....:spank:

But, like this thread, neither here nor there.

WingleBeast 05-01-2011 11:44 AM

i went 152 on open road in wisconsin, kind of dissapointed i didnt try once i had my turbo in. but it sure took a while to get from 130-150

zenrx8 05-01-2011 03:31 PM

Probably the only non-fanboi in this forum
 

Originally Posted by alnielsen (Post 3961579)
With the stock gearing, an engine turning 9,000 rpm with the 6 speed transmission will top out at 186 mph. The Renesis of course doesn't make enough HP to do that. It will top out at about 150-155 due to aero drag. To go faster, you need more HP and a lower rear gear ratio.

An intelligent answer to a simple question. No posing, no off-topic bullshit, just a matter of fact answer to the original poster's question. Respect, Al.

As for the rest of the cadre that didn't know the answer but couldn't man up to say it, go back to your porn sites.

zenrx8 05-01-2011 03:41 PM


Originally Posted by Jamaalsmith (Post 3961992)
Im sorry...that is a pretty badly framed question. Dannobre nailed it

Actually, it's a pretty well framed simple question. Just a badly framed response.


Originally Posted by TeamRX8 (Post 3962696)
With enough $$$$; Mach ZOMG is even possible

Yes, and with enough $$$$, you might even find some intelligence.


Originally Posted by Talic (Post 3962658)
taking aero dynamics/weight and mass aside.
top speed is a calculation of wheel dimention. diff ratio trans ratio and rpm

so your answer is very easy to figure out.
now throw in weight, rotating mass and aero back into the picture and if you are geared for 400mph... the vehicle will never make it.

Whacking off


Originally Posted by california style (Post 3962699)
move to plaid speed!

This answer has what to do with the original question?


Originally Posted by bumblebeerx8 (Post 3962777)
flat ground or going down a hill?

Jerking off


Originally Posted by 9krpmrx8 (Post 3962787)

Nice picture, must be there to satisfy your ego instead of answering the question


Originally Posted by Talic (Post 3963256)
i am by all means not even close to a tuner. i can modify one.. but..
how the hell can you tune for a 6 rotor?
unless it was in pairs then would be a bit easier just correct for load and timing?
i bet even MM would have a hard time? or i could be completely wrong...
and its just simple to mirror a tune with an offset for the degree of each rotor.

Ever Considered Ritalin for that ADHD


Originally Posted by Beodude (Post 3963377)
Honestly, who cares? Have you even gotten an RX-8 stock to it's top speed? I'd say probably not. So why care about a three rotors top speed?

Obviously, the original poster does. Why do you care why he's asking it


Originally Posted by Jamaalsmith (Post 3963458)
Yes... 147mph...downhill...lol i almost died....:spank:

Almost...what a pity, so close.

But, like this thread, neither here nor there.


Originally Posted by WingleBeast (Post 3963477)
i went 152 on open road in wisconsin, kind of dissapointed i didnt try once i had my turbo in. but it sure took a while to get from 130-150

A spark of intelligence, not to mention experience! On the RX8Club forum yet! Has Hell really frozen over?


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