4.778 Final Drive For $296 - Page 15

Apr 23, 2006 | 08:48 PM

#351

olddragger

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From: macon, georgia

I have 17x8 wheels with Toyo 235/40's for the track. tires I belive ar 24.4 inches--gives it much more grunt exiting turns etc. I will never go back to a taller tire for the track. Oh yea and the entire wheel with lugnuts weights 40lb per bathroom scale.
olddragger

Apr 24, 2006 | 01:09 PM

#352

TeamRX8

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Quote:

Originally Posted by Nemesis8

What about 275/35/18 Falken 615Rts?

I think the 285/30's might rub, right?

not with the correct wheel offset

my 265/35-18 Yoko Advan Neovas are wider than the 275/35-18 RT-615s

OD may have me beat on diameter (25.0) and weight (44lb), but don't underestimate the effect of higher cornering speeds

Last edited by TeamRX8; Apr 24, 2006 at 01:13 PM.

Apr 24, 2006 | 03:51 PM

#353

olddragger

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From: macon, georgia

hehe

olddragger

Apr 24, 2006 | 07:07 PM

#354

mysql101

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After reading this entire thread, I'm wondering why you guys wouldn't just modify the transmission - this would allow us to better match the gear ratios to the power curve of the car. What's the reasoning behind changing just the final drive?

Apr 24, 2006 | 07:47 PM

#355

BaronVonBigmeat

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Probably because of parts availability. Plus I think a diff gear is easier to swap out.

Apr 24, 2006 | 09:45 PM

#356

TeamRX8

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less expensive too ...

Apr 26, 2006 | 11:40 PM

#357

swoope

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From: orlando, fl

Quote:

Originally Posted by Hskr8

I'm pretty sure this is easy to do on another vehicle, but does anyone know if we can recalibrate the ECU for a change in tire size on the RX-8 so that the speedometer/odometer stay true?

not yet.

beers

Apr 28, 2006 | 10:18 AM

#358

olddragger

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From: macon, georgia

you can buy an adaptor that will do that
olddragger

Jul 25, 2006 | 02:37 PM

#359

theboy

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So does this means our car can only get to 160MPH with the 4.778?

Last edited by theboy; Jul 25, 2006 at 02:48 PM.

Jul 25, 2006 | 04:30 PM

#360

dillsrotary

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From: Boston, MA

Quote:

Originally Posted by theboy

So does this means our car can only get to 160MPH with the 4.778?

the car can't get with 160 with or without it.

Jul 25, 2006 | 05:30 PM

#361

Moostafa29

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From: Freakmont, CA

What the hell do you need to go that fast for anyway?

Jul 25, 2006 | 09:19 PM

#362

Xantium

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Quote:

Originally Posted by Moostafa29

What the hell do you need to go that fast for anyway?

gotta keep up with the srt4s man

Jul 25, 2006 | 10:34 PM

#363

Moostafa29

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From: Freakmont, CA

Well I'm glad I don't live in NJ. Don't have a silver 8 do you?

Jul 25, 2006 | 11:37 PM

#364

IZoomZoomI

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haha going at 160mph, please don't kill yourself.

Jul 26, 2006 | 06:50 AM

#365

theboy

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hahaha
sorry guys we use KM/h here. i almost forgot they are different thing. 160MPH thats pretty fast.

Jul 26, 2006 | 06:56 AM

#366

Moostafa29

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Thats still like 120-130mph.

Jul 26, 2006 | 09:48 AM

#367

theboy

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normally its even hard to get 184KM/h on roads here, thats where the speed cut is.
how much MPH is that?

Jul 26, 2006 | 09:54 AM

#368

El Kabong

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From: Gulf Coast

160 KPH = 99.4 MPH

Divide KPH by 1.61 to get MPH

-Kabong

Jul 27, 2006 | 12:41 AM

#369

theboy

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oh~ thats mean 180KM/H is 112MPH

icic thx

Jul 27, 2006 | 11:48 AM

#370

theboy

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one question in mind, will this mod make the car go hot easily when i am at constant 130km/h ? cause i travel long distance often.

Jul 27, 2006 | 02:24 PM

#371

Aseras

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Quote:

Originally Posted by dillsrotary

the car can't get with 160 with or without it.

i've had mine over 160 mph...

Jul 27, 2006 | 02:26 PM

#372

Aseras

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Quote:

Originally Posted by theboy

one question in mind, will this mod make the car go hot easily when i am at constant 130km/h ? cause i travel long distance often.

it will run a higher rpm.. under a load/full throttle maybe hotter especially if you are sitting still or on a dyno.

Jul 27, 2006 | 07:26 PM

#373

theboy

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Oh ****...

Jul 28, 2006 | 06:35 AM

#374

theboy

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oh **** man. it was my dream to have 4.777 higher repond, but then its a long distance car. hot and not so fuel efficiency i guess.

Jul 28, 2006 | 07:02 AM

#375

Moostafa29

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From: Freakmont, CA

The difference really isn't that great. Check out the threads in the Far East Asian section, as there are a few members that have them installed. Mine is due to arrive next week, but I doubt I'll be installing it anytime soon.