http://www.mazdarotaryclub.com/forum...ad.php?t=61657
The rest of the project can be viewed on the above link or also in brief at my website link in my signature.

Okay guy's I think this will be the final update to this project. I have been wanting to put a little more bost into the old girl since the rebuild to get up to about 1 bar and see if I could top 400bhp (flywheel). I had problems with my electronic boost controller so decided to make my own mechanical one based on a dawes device but using a little bit more finesse than the ones you can get off ebay that don't seal properly and most people complain boost spike. So I set the unit up last night and fitted it to my car for tuning with Geff today. After putting a new pair of Leading plugs in (Done a set in 1000miles!) due to ingnition breaking up I must say the results were very pleasing. I think the graphs say it all.
Wheel power and Boost


Boost and AFR


Estimated Flywheel power and Torque


I must say I was stoked with the results.. My aim was to top 400bhp on a budget so over 420bhp is very pleasing indeed. The hard graph paid off!

As you can see the boost curve is very nice and smooth. I have not road tested the device much being that it was only fitted last night so I will see if the performance lasts and may offer the for sale in the near future.

I would be interested to get some feedback on the AFR graph as I have some rich running problem down low and Geff tried to iron these out but it appears a small group of cells on the datalogit are causing no effect on the output for the ECU. If you try and turn the fuel down nothing happens until you litterally switch the injectors right off? Maybe this is a problem I have to live with for running 850cc injectors all around although Geff does not recall having such an issue before. Anyway thoughts Please or any additional info would be appreciated.

Visit www.rspowerprojects.co.uk for more of my projects and info.

 

That's a nice torque curve on the first graph at full boost

 

Cheers.. Did you mean the first graph as that is showing boost and wheel power? The last graph is showing the torque vs power.

 

what is your mods?

 

awesome thread man.

 

Cheers.. Glad you like it.

Mod wise all info is on the main build thread but in brief engine wise I have a stock ported engine with single turbo Holset conversion. 850 injectors all around and Bosch copy hi-flow fuel pump. ECU is Apexi.