So I'm in the midst of my first full rotary build after my apex seal failure of last summer. My original plan was to fully rebuild my engine and run a BNR stage whatever setup and make 300+hp ..... and that was the plan. But things change and my new job and income have created a power hungry me.

My plan for the vehicle is a weekend road course and fun car which I can beat the **** out of and be somewhat reliable. I NEED a fast spool and something that will give me the power goals of say around 400hp to the wheels.

My current build consists of a Med streetport engine with Aviation Super seals, with matching race springs, full Atkins rebuild kit with Cryo treated side and solid corner seals. All housings and rotors are within Mazda specs too.

Previous supporting fuel system mods consist of FD fuel pump, 750cc secondary injectors.

So now is where I would like a hand.

All the research and forum searching I have done has only opened me up to a billion different options of turbos, manifolds, stand alone ECU's and so on.

Stand alone wise I don't need anything crazy I'd like to keep the stock coils if possible and run 93 octane. Seems like everyone loves the new Adaptronic ECU's, but MS3 and Microtech are praised as well. I would have a tuner take care of the in depth things and the guy I'm looking to knows all these systems.

Next is turbo. Quick spool is highly desired so I'm THINKING tubular manifold with journal or ball bearing. I just don't know if ball bearing is worth it (again i'm looking for reliability). But T04S, GT35R, TDX61 are all on the list of turbos I have been researching.

I'm upgrading my clutch with a ACT sprung 6 puck, pressure plate and flywheel to handle the power.

I have a FD pump but I might need more? Obviously need injector upgrades too.

I'm gonna pick up a cheap front mount for the cooling,+ KOYO radiator.

Whats your opinion on ECU, Turbo, Manifold, and Fuel system??????

Budget is around $5K for turbo/ECU/fuel system ect.

Thanks for the help!!!!!

 

The MS3 is a hobby kit and Microtech ECUs are really only good for drag racing, so that leaves Adaptronic as the only real choice of the three. If the guy you are looking to doesn't know this, then I would question his competency.

Get with Turblown on this forum to see what he recommends.

I don't see that happening. An Adaptronic ECU is about $3K, and the turbo and manifold are going to run about $1,500-3,000. There goes your budget, and you haven't even gotten into the fuel system components yet. Maybe you can find a good deal on used parts, or you can adjust your goal slightly to fit your budget?

 

I just did a web search and found some cheaper US sources for Adaptronic, so you may be able to reach your $5K goal after all.

 

The more I learn about it the more the Adaptronic looks to be the optimal ECU. I know on Turblown's website they have a full turbo kit for the TDX61. So I think im going to make some calls tomorrow and see what they think. Again thank you for the help!

 

I don't know how much power the fd fuel pumps are good for, but I would consider changing the fuel pressure line to 3/8" , -6 from the pump to the rail. I've had a few forum member recommend that for me when I asked about possibley going with a gt35 turbo. It's always good insurance

 

its nice because they have a plug in version, so you get to skip the "rewire half the car" step.

 

could also contact C.ludwig about a haltech setup. Really up to what your tuner is comfortable with. He will make a plug n play harness for a little extra $$.

 

Does anyone have personal experience with any of these turbochargers? Journal vs ball bearing setups? I've heard garrett ball bearings can not be rebuilt and the ball bearing isn't worth the 200-300 RPM quicker spool time. Thoughts?

 

You need more pump. Walbro 255.

Which system in your tuner familiar with? That's going to be the ultimate decision maker. Just be aware that the Microtech is a stone aged ECU really one suited for track use these days. Software is terrible, mapping is crude, ignition model is idiotic, no configurable outputs, I can go on.

You didn't mention Haltech. The Haltech has been popular in the rotary world for many, many years. P1000 is a great unit.

Of all those turbos I am most familiar with the GT35R and TO4s. At this point the T series are pretty old, so unless you have a great deal, there's no advantage other than price.

I'd recommend the GT35R for your goals with the .90 turbine. Great responsive turbo on a street port, 400HP at around 16 PSI, well supported in the rotary world.

There are many injector choices these days. My personal recommendation are RX-8 primaries (high impedance) and a high impedance 1200CC secondary (ID, whoever else).

Double it, then add $1000 - $2000 for tuning.


To be fair, the MS3 can be a hobby kit type ECU assembled by the user, or purchased from a Megasquirt vendor fully assembled so like most other standalones, the user would just need to configure the wiring harness. There's also the MS3-Pro at a price point similar to many other standalones that is fully ready to go. Just wire it into the vehicle.

At this point for about $1200, I have a hard time not recommending the MS3-Pro considering the capabilities of the unit. Which are ever increasing as new firmware is released.

 

If its a roadcourse or autoX car this is where the BB is worth the price tag. Otherwise the journal bearing is just fine. If you want the ultimate in boost response, the EFR units are by far the best.

Turblown Engineering