I am in the process of adding a good amount of power to my 2004 RX8. I will be running about 375 hp and 300+ ft pounds of torque. I am a little concerned about the strength of our rear end. Someone at mazmart told me they are stronger than i think, but i wanted more opinions. any info is appreciated.

 

You will break the axles first...but not till 400+

Transmissions can be another story...depending on how you drive

 

BTW...what's with the multiple posts about the same thing

Ask once...you will get a lot less flaming......

 

i am sorry about the multiple post wasnt sure if i posted in the right spot heh. i will delete the other

 

If you break an axle give BHR a call as we can certainly help you with that.

 

do you do different differentials?

 

wondering what you are doing for a tranny? and engine management?

beers

 

LS1 swap. Using t56. as far as engine management well to my knowledge we are using the gm computer and mazda computer in combination. mazda for gauges etc.. i started a post in multimedia for pics of the build.

 

Umm... there is a firm that sells this service. They have been to Seven Stock.

PM Charles R Hill

Ask Ray, I think he has their business card.

With that info you can call or look them up on line and discuss any potential problems.

For Rear End, Ray has the set up you need.

 

Thanks for the info. We have got the electrical issues solved with two custom harness built. If i have any rear end issues i will def. keep them on my list.

 

i dont think you will have a problem with the rear end.

angel has 650hp (turbo 3 rotor) and afaik, he has no problems with the rear end.

at 800hp iforgothisname (another of those crazy PR guys) changed his rear half shafts to stronger ones.

so i think you are OK.

 

Thank you all for the information. Just wanted i wanted to hear.