SpooledupRacing

I have read of people using RX8 e-shafts and I am just curious to why?

Do people normally replace there N/A e-shaft for a RX8 shaft or would it be bennificial to replace my perfectly good S5 T2 e-shaft for an RX8 shaft?

sm0keyii

iTrader: (1)

All I know is that it is a half pound lighter. I'd say just wait til your old e-shaft needs replacement.

TitosToy

only thing beneficial thats been mentioned is the weight you'll be saving without having to balance the rotating assembly.

SpooledupRacing

if that is the case then I have no need to replace my eshaft.. and I will just use it.. I am gonna use a lightweight flywheel ayways.

turbo10th

iTrader: (6)

I am going to be building a turbo engine for my 10th ae and was thinking about using one. Do you have to do any mods to it for it to work with the 13bt i wasn't sure if there was any other difference besides the weight?

FelixIsGod29X

iTrader: (50)

Titos, i though you had to balance everything if something is replaced that isnt the same on the rotating assembly? Because i wanted to get the rx-8 e shaft and a light weight flywheel for my T2 build but though it would need to be rebalanced. If someone could put in there input on this that would be great.

gross polluter

Pretty much. Besides weight, they're cheaper brand new than a TII eshaft.

TehMonkay

iTrader: (-1)

You have to use the RX-8 stationary gears as well.

farberio

iTrader: (7)

I don't think you do.

FelixIsGod29X

iTrader: (50)

Why is it everytime i ask a question in a thread everyone ignores me....

hatemy7

im not ignoring you!! i actully have a questions about it also!!, they really didnt answer the questions here so thats why i opened my thread...but all i want to know is what does it do ? faster? more tourque? and do i need to use the stationary gears from an rx8

SureShot

The stationary gears are only an issue with the rotors.
The RX-8 rotor & stationary gear set has a different tooth profile.

The e-shaft is balanced seperately.

hatemy7

oh ok thaks sureshot...so i wont need em, that will save 250.00...lol..

farberio

iTrader: (7)

This is what I was planning on doing.

You do not need to have the motor rebalanced when using a new RX-8 E-shaft.

Or I should say, you do not NEED to have the motor rebalanced. From what I gather its a 'to build it right, rebalance it, but you can get away not rebalancing'

I probably will get a balance because I am going to use S5 rotors I got from someone else, plus a new Fidanza flywheel, and a new RX-8 E-shaft. The way I see it, I am not replacing one part, so I might as well do it. But I still think you can get away without balancing.

SureShot

Oops - DP

Spectator

iTrader: (1)

I heard it had less flex, enabling higher RPMs.

This may be wrong though.

farberio

iTrader: (7)

I have heard this too, but the more I think about it the more I think it has to do with the weight that enables higher RPM.

I mean, the difference between S4 and S5 is 1000rpm, and the only difference is the weight of the rotors.

hatemy7

well im going to use the rx8 eshaft....they way i see it now " lighter rotors , lighter Eshaft, lighter flywheel, who want sum?" lol....

Spectator

iTrader: (1)

Exactly. Less weight on the rotors enables higher rpms since the e-shaft will flex less because of inertia.

And if the e-shaft is stronger, than it can witstand more inertia to weight ratios.

farberio

iTrader: (7)

So if I could find a E-shaft out of admantium, and find rotors made of ultra high temp withstanding plastic....

hatemy7

lol calm down wolverine...lol

ericgrau

iTrader: (1)

I'll sell you my spare adamantium e-shaft for $400. Good for "OMFG THIS ROXORZZ!!!1!" rpm. PM me.

SpooledupRacing

IMO not worth the 180.00 when I have a perfectly almost new T2 shaft..

farberio

iTrader: (7)

Not unless you can sell your almost new T2 shaft for $180.

chatchie

iTrader: (22)

Ha...he said wolverine