And what would be the benefit and downside to this
I'm awaiting my assembly to be balanced and was thinking about this any advice would help thanks

 

Guess not then

 

people have done it, it doesn't work. if you can get the engine together, it'll ruin it

 

Common sense would say that you can't do that.

 

The problem is Racing Beat says you can in their old tech tips...

 

Rotary Tech Tips: Engine Seals

"we have found that using (2) side seal springs (one on top of the other) helps stabilize the rotor and keeps the side seals on the side housing. The only drawback is more friction - particularly during break-in - and slightly higher oil temperature. Remember to keep the ends of the side seal springs "up" when installing them. For the RX-8, do NOT use (2) springs beneath the RX-8 side seals - there isn’t enough room!"

 

Since when do you need to improve 'rotor stabilization' and how can you quantify that in any way?

In the past ten years I've torn down two different engines from a now-closed shop that had done this, and guess what? The ends were broken off the side seal springs.

A horrible idea, and a bad 'solution' to a problem that doesn't exist, at least not in the FD's engine.

 

What Rich is trying to say is, it's like wearing two condoms together.

 

The big shops don't know how to port either. All their side port templates catch the end of the top sideseal and wear it and the iron.

They just all found something that worked "well enough" for them and stuck with it.

 

Thanks for the info guys
Has any of you guys done it ?

So guessing it's not common practise then

 

yes! it does not work do not do it.

 

Yes. Premature iron wear. Don't do it!!

 

Thanks guys for all info will build with just the single set of springs thanks very much for all input very helpfull