auzoom

Has anyone used these yet?

auzoom

Seriously??? No one???

auzoom

I so want to buy these but am reluctant to without some input from others. Its a long way if things go wrong!

Salamanth

Paul's/InjectorDynamic's injectors are the most well characterized injectors sold on the market today.

You would have to change the latency tables if you used these injectors, plus don't forget the Primary and Secondary/Auxiliary injectors are different tables. The Sec/Aux share a single latency table. I believe full latency tables are provided with the injectors.

I would call Paul's shop and talk to him about them, he won't steer you wrong. With a standalone ECU (Motec FTW), I don't doubt they'd work great, but I personally have some (slight) reservations about using them with the accessport.

- Injector sales - http://www.t1raceparts.com
- YawPower - http://www.yawpower.com/performancefuelinjectors.html
- InjectorDynamics - http://www.injectordynamics.com/

auzoom

Thanks for the reply. I have spoken to Paul extensively and he is an awesome guy. Latency tables would be supplied on purchase and he has spoken about using them on their race cars.

Why do you say this? My take is the reverse. Without the AP or SPT which I am using they would be useless IMHO.

Cheers

Andrew

Salamanth

Sorry, I'll edit my post for clarity's sake, but I meant Standalone in the sense of "With a standalone ECU" (IE Motec, haltec etc.). I say that simply because of the tied P2/Aux tables on the stock ECU, if you were looking to upgrade both secondary and aux tables to identical injector sizing it wouldn't matter, same for primaries.

With a standalone you have greater control over the injectors and can control them independently so it's a non-issue.

I have no doubt they could work well with the AP, providing they can be made to fit our fuel rail and providing you wanted to upgrade primaries or secondaries/aux as a batch.

auzoom

Ahhhh I see. The intention was to go with these in both Secondary and Aux positions so all good. They do require an adapter, similar to how the LS2 coil needs one.

rotarenvy

yawpower do seem to give you a nice product. but is all that info really necessary?

I bet you wont use half of the report that comes with them. about the only thing you will use are latency tables.

flow matching is also a useful thing. you will still need to bugger around calibrating the with injector size in pro-tuner or accessport. flow testing is at a standard--how the test is carried out can have a large influence on the outcome. so flow figures don't necessarily give you a size of flow value you can plug into your pcm. if befor and after flow tests are done you may be able to apply a percentage change to the pcm tables to change the injectors size. if they're different injectors then you may just have a ball park number.

it would be nice to have 4 injectors with the same flow rate so all ports receive the same fuel. mazda just design around oem injector flow tolerances. on a boosted engine that might not be enough.

I've never liked the idea of modifying oem injectors. I'm going to try using the blue auto injectors. I have a 4 second hand ones I'm getting cleaned and flow tested. just to see that they are ok and the variation isn't bad. then I'm going to use the latency tables and injector sizes from the auto's calibration. mazda determined these tables and sizes so I reckon the parameters should work with the std management.

this might not be enough for a big boost turbo where I would be trying to use the 550cc 2nd gen rx-8 injectors if I could get my hands on the latency tables and sizes.

Frosty288

So, since the service is so cheap - it wouldn't be bad at all to flow match all of the injectors so when tuning comes around it'd be more consistent?

I'm thinking about becoming a guinea pig for the NA.