Hmm, I don't think this is the TRUTH. Gears 1-4 in the 5-speed and 6-speed trannys are virtually the same, so unless you plan on going over about 104 mph in an auto-x, it makes no difference.



Motor Trend did a good comparison of each model for 05. The same basic differences still apply. It's a good read:

http://motortrend.com/roadtests/seda...vos/index.html

Edit: The graph assumes theoretical (no drag) top speeds in each gear for gear ratio comparisons.

 

Re: original question.

For drag, RS, due to lighter weight.

For track (road course), if you are going to leave the cars bone stock (which no one ever does) then the MR becuase it has a better suspension and lighter wheels, plus the wing and vortex generator. If you are going to mod the car, then RS because it is lighter and much cheaper.

The IX GSR is simply a compromise between the RS and MR, and is not better for drag or track, but is a better deal than an MR and more comfortable than an RS for driving on the street.

 

gotcha.. i mean to say GSR or the MR in a few post ago

 

The MR is going to be better on the road course in stock form and later on when you add additional modifications. ABS and the 6 speed play a big factor in this. It really depends on the track and level to which you plan on modifying your vehicle. The MR in my opinion is the better car out of the box and the gap will grow larger later on with modifications, unless you are a drag racer which the car was not designed for. If you drag then you may see a benefit from the 5 speed.

 

I don't know about that graph, but I know that gears 1-3 aren't the same. We have noticeably different shift points (mph) than the 5spd Evos. Each of the first 3 gears are closer, which allows us to get to the 1/8th faster and quicker on average, but then we lose out on the top end of 4th. In the MR, we have to shift to 4th well before the 1/8th whereas the 5spds shift to 4th really close to the 1/8th marker (some do so afterwards). I'm referring to personal experience with both cars on the same track on more than 10 occasions in addition to many other comparisons in the Drag Racing forum.

 

Are you comparing theMR to the 5-speed in the IX or VIII? The thread was about the comparing the IX, in which there is no significant difference between 3rd gear ratios.

The graph was calculated using the numbers from:
https://www.evolutionm.net/features/newsitem/91

Final Drive x Gear Ratio = Overall Ratio

1st
IX: 4.529 x 2.785 = 13.3319
MR: 4.583 x 2.909 = 12.6133
Difference = 5.7%

2nd
IX: 4.529 x 1.950 = 8.9094
MR: 4.583 x 1.944 = 8.8316
Difference = 0.88%

3rd
IX: 4.529 x 1.444 = 6.5399
MR: 4.583 x 1.434 = 6.5720
Difference = 0.49%

1st gear in the 5-speed IX's is slightly (5.7%) shorter than it is in the MR, making 1st and 2nd closer in the MR. Other than that, they're almost exactly (<1%) the same. I calculated that a 5-speed IX tops out in 3rd only 0.4 mph faster than the MR.

If your experience is with comparing the VIII and the MR, then that would explain why you think 3rd is so different. Look at the graph, you can see that the VIII can go about 2.5 mph faster in 3rd than the MR. It's more of a difference, but still not very significant.

 

YEs, of course comparing with the VIII. The IX has only recently been released, and I haven't seen any at the track yet. 2.5mph is quite significant when racing.

 

was that 9 mr or a 8 mr that you where comparing in the graphs

 

The IX MR and VIII MR has exactly the same ratios.

Warrtalon, the original post was about the IX, not the VIII, so originally it sounded like you were talking about the IX.

 

Shifty, you're right that the thread originator was asking about the 5spd IX originally, but the post where I mentioned running out of gear while autocrossing was in response to Nez who was referring to hitting the rev limiter during autocrosses earlier in the year before the IX came out...so, we were talking about VIIIs at that moment.

 

get the RS or GSR for either track use or drag use. imo the MR is for someone who does not wish to mod it at all. just my thoughts.

 

It's superior from the factory. It's for people who want to race and mod, but not to the point of replacing the factory suspension and wheels. For those doing coilovers and aftermarket rims, the only benefit of the MR is the aluminum roof and 6spd, in terms of racing anyway...

 

The 2nd post of the thread was yours, which was a direct response the Djstorm:

Regardless of whether or not you were talking about the VIII or IX, you were wrong because 2nd gear (which determines when you must shift to 3rd) is virtually the same (<1%) for ALL models of the VIII and IX.

Speed in 2nd @ 7000 RPM
MR: 59.16 MPH
IV 5-sp: 59.66 MPH
VIII 5-sp: 59.66 MPH

 

Lots of magazine racing going on here. How many autocrosses have you done in your MR, Shifty?

 

The spec sheets from Mitsu aren't magazines.

Obviously I don't own an MR or any Evo for that matter (yet), but I don't need to drive an Evo to know how fast they go in each gear. Either you are wrong or the numbers from Mitsu are wrong. Which is it?