Since Rx8 debut, old Rotary community all have
What if ? 13B MSP have PP exhaust!!!
Now after a few years of planning &developing
This is sec prototype my friend build for Rx8
First one is Turbo version~ This one is NA Build


Update 10/26 2022 at page 16
Here is Dyno sheet using Dynapack
Solid line is 13B MSP Ext PP
Dot line is stock 13B MSP

Update 3/7/2025 at page sec dyno testing, with much better results

 

Awesome ! Been hoping someone would do this for a long time. Very keen to see how it all pans out.
The big question : what have you used to seal the side exhaust ports ? Looks like JB weld or similar .....
Also , exhaust header has no turbo flange ?

 

My friend boil and cast special formula materials into it , not JB weld lol

This one is NA build , turbo one already been runing for some time

 

So where's the details on the turbo one ?

 

Very cool! Can't wait to see more

 

Kudos... very cool innovation! Interested to see more of build and performance metrics ...turbo and NA.

 

Can't wait to see Team's reaction to this when he emerges again. I miss/don't miss his input. You know what I mean?

 

I miss MazdaManiac's input too. I'm sure there are others as well. But at some point you become such a *****, people don't care if you give good advice.

 

I would love to see more about this. I like to see people actually build things.

 

I was following the turbo one on youtube, I know you lost compression on the one rotor, what was the result? And whats so different about this material than last?

 

my reaction is simply to wait and see; my position has always been that the cost and effort won’t justify the input of resources and hassle required for reasons illustrated and discussed in detail in various other threads on the subject
**until someone demonstrates otherwise**.

Been waiting patiently for 10+ years and still am …



kilawatts, with all sincerity; I’m sad for you.

.

 

Ready to go

 

Bump for interest. I have some s4 housings but the coolant seal issue

 

Hold up team
Car is not full tune yet , just start up ready to brake in

Is not fair to compare to this stage

 

ok, fair enough that it wasn’t clear about the status.
.

 

Even with stock Tune , engine feel Lots TQ
And pull to redline smoothly

 

Interesting!

I thought this project was dead in the water. Any thoughts on going to a dyno?

 

I think u fellow a different guy
Will ask my friend strap to Dyno that I use for my Rx8

 

thanks for recharging my “calling bs” balloon it’s not like I never heard anyone claim this before and then dyno 180 whp.
.

 

a month later
.

 

To be fair in this current environment 1 month is not very long. Most good dyno’s around me which are many are all tied up for the next 2-3 months.
So no surprise. Looks a bit slow Erving compared to stock but not saying that can’t be cleaned up with tuning. Cool build for sure.

 

true enough here, but this effort is in Taiwan

it was long enough to break it in … just going to leave it that though.
.

 

I would love to see it on the dyno.

 

hopefully we can finally put this lie to bed soon enough for what it is:


not surprised at all though
.

 

There is no lie, just people trying stuff that may or may not bring good results.