Federighi

iTrader: (7)

Hey 8Club!

Didn't quite know exactly where to post this but figure it should get a fair amount of traction here. There's an extremely nice D-series 20b with dry sump posted to the 7club for a very reasonable price imo. To my knowledge, it's been through inspection and is ready to rotate.

While I'm just about finished gathering the last bit of parts for my build and was about to pull the trigger on the LEG Ti-R70 exhaust, at some point I thought to myself 'hey, you can buy a really nice modern turbo for that amount of money.' So it's safe to say the wheels of a turbo MSP build started to move in my mind.

Now for my dilemma, do I:
1.) keep the MSP as planned and prepare for FI in the distant future. Engine build $8-10k, turbo 'kit' with standalone $6-8k, misc $5-10k. Rough estimate $20-25k total.
or
2.) pick up the 20b and when the time comes, send everything to Defined or Lucky7 for installation and tune. Seller is asking $9.5k for the 20b, $4k for the sump. I'm essentially trying to replicate Chris Muscats' 20b set-up with the variable intake runners. Obviously there will be a lot of fabrication, time and money involved. I figure at least an additional $20-30k in parts and labor. Rough estimate $40-50k total.

Either scenario is well within reach / reason and worth the investment for my rx8 imo.

Thanks in advance!

MincVinyl

I feel like you really should be asking yourself how high of a ceiling do you want? As far as we can see right now the msp can somewhat reasonably reach up to 400Hp where a Rew or a 20b would be able to climb higher than that.

Brettus

iTrader: (2)

To me those options seem poles apart. And where is the REW conversion option ?
I've tracked my turbo msp a lot but have to admit I'd go for an REW if I wanted to go into serious competition with the car.
The 3 rotor competition cars I've seen here are totally awesome on track and everyone loves the sound. If money isn't a barrier .... why not go for it ?

This car is local to me and ....it's freakin' awesome ! But the dramas getting it to this point would make your hair curl.
https://www.facebook.com/watch/?v=383752409501487

Federighi

iTrader: (7)

Minc- My primary interest would be to build something special. No particular HP goal or anything specific as I'm not looking to make or break any records. N/A 20b is a very rare engine and I've personally always wanted to own one. I suppose it's been mostly a timing thing as the the opportunity for ownership just so happened to arise and figured I'd better make a move as these types of things are often very high in demand and tend to move quickly.

But alas, I just spoke with the seller about my proposed bundle deal. 20b is on hold, dry sump has sold. Major bummer. We'll see what happens, I'm patient. The option of getting a MSP built is always there and options for REW swap are plentiful; bunch of built REW's just sitting on the 7club for less than I'd have to pay for MSP rebuild. Turbo 13b is nothing new 'round these parts though.

I'd already brainstormed my rough 'plan' for the build and bet it would've turned into a good one. Place the block as low and far back as possible (firewall cutting I assume). PAC billet e-shaft, Pro-jay non-PP 6 injector billet manifold (all that's left), modest half or full bridge port on FlexFuel with the OS-G FR7. If I had to write metrics down, I'd say my aim was to have as wide of a power band possible that was still increasing above 9k+ rpm. My best estimate would probably put it around 350rwhp.

quick edit for Brettus- REW is way too common for me imo and I'm not looking to get into serious competition. Mainly a toy personally funded by me so not an issue

TeamRX8

iTrader: (25)

you of all people on here can afford a billet 20B; that would make more sense than starting with an old $10k Mazda engine and converting it into a short crank race engine configuration imo.

TeamRX8

iTrader: (25)

which it was officially sold the other day so might as well do that ...

Federighi

iTrader: (7)

Yep, back to the drawing board for me. There is a 7club member offering a balanced 13g internal assembly for sale but I think that is a larger bite than I'll be able to chew. I'd still need to source a ton of obscure parts to complete, which when parting piece by piece can only be found a huge premiums due to scarcity. My intention is always to finish projects within reasonable timeframes and I'd hate to have a $6k paper weight sitting around unfinished and/or unused. The nice thing about that particular 20b as I saw it, is that it would've provided a very clean starting point. As far as the 20b itself was concerned, everything was more or less there that was needed.

And yeah, full billet is definitely the way to go and certainly well worth the consideration if within budget. I'd imagine the price tag on housings, plates and e-shaft upwards of $30k. Maybe if I owned a shop and used the vehicle as an advertising platform, that would absolutely help to offset costs. Or if I were able to work out some sort of deal / sponsorship with a shop/vendor/manufacturer, etc.

I'm hopeful for the future. Always brainstorming my next scheme. You just never know

TeamRX8

iTrader: (25)

there are alternatives if you can pull your head out between the バカの外人 JDM buttcheeks and stop insisting on outsourcing rare 20+ year old parts that really aren’t the best performance option any more.

Build a short PP 20B using std REW parts and an aftermarket e-shaft. Jeff Bruce in NZ is a pretty good source for 20B aftermarket e-shaft etc. for very good pricing that is not mentioned much anymore.

Just happened across this last night (edited, initially posted the wrong video):


Or you could go the smack talker route wowing all the kiddies and rubbing the meany hater noses in it by spending 2x more building a fabled Renesis 3-rotor that magically extrudes herds of rainbow colored unicorns out it’s tailpooper ...
.

TeamRX8

iTrader: (25)

and another ...

Federighi

iTrader: (7)

Yeah that sounds like a great idea and probably much more cost effective option. I had always considered piecing something like that together but I'm not fully knowledgable on the topic so I'd feel most comfortable in the hands of a trustworthy rotary shop that would be capable of completing a project of this nature. I actually have a disassembled REW in storage (minus housings) that is still usable. If there really is a 20b shaft that can be easily sourced for a build like this, then I may still be able to make it happen. Thanks for the input Team, I literally do not have anyone to talk things like this out with and its really helpful.

That Full Boost video is Chris Muscat's 'Silver Bullet.' One seriously cool FC imo.

Federighi

iTrader: (7)

Much less than I thought. Too bad their pre-balanced assembly is out of stock. That leaves me still needing to source an appropriate e-shaft / rotor set-up and have the whole thing balanced independently. Definitely be an awesome engine to build.

https://www.billetrotary.com.au/prod...lock-package-1

TeamRX8

iTrader: (25)

for an e-shaft you should consider getting in touch with Jeff Bruce with Precision Engineering in NZ

Precision Engineering

this was from 2013, not sure if it’s still legit

precision@ihug.co.nz

not aware that he’s doing billet plates and such though

you might also consider talking to Logan at Defined Autoworks

.