Mazdaspeed3 tuning pt. 3

Kinja'd!!! "FrankenBlaster" (FrankenBlaster)
09/08/2015 at 16:55 • Filed to: None

Kinja'd!!!1 Kinja'd!!! 3

Here’s the next progression in the series of maps I’ve ran while having my ECU tuned for my little big turbo.

From the last map to this one, I picked up a lot of power earlier in the RPM range. I was starting to get worried between maps that I had a boost leak going on. This one helped reassure me that I didn’t fuck anything up in the build and it’s still good.

I’m up to 21 psi now which is what the stock k04 turbo pushed. The 18g I installed is capable of around 23-24 psi as it sits in my car now. I’ve still probably got another 4 or so maps to go through, and if I keep seeing similar performance from map to map this thing’s gonna be a monster. There’s still a ton of room to grow where it flat lines at 5000 rpm.

Kinja'd!!!

As always, it’s important to note that the logs used to create the dyno data are pretty unreliable as far as real world numbers. It’s just as close of a visual representation of what’s going on as I can get without buying dyno time.


DISCUSSION (3)


Kinja'd!!! BREADwagon > FrankenBlaster
09/08/2015 at 17:13

Kinja'd!!!0

It looks like the 18g is really laggy. You’ve lost 40hp from stock from 3k rpm down, but gained it from 4k to 6k. Have you looked into anti-lag?


Kinja'd!!! FrankenBlaster > BREADwagon
09/08/2015 at 17:58

Kinja'd!!!0

It is much laggier than I thought. If I knew it was going to be this bad, I probably would have gone another route like a water/meth injection or a partial e85 tune and a couple other things to get a little more power out of the k04. Looking at the sizes of the two turbos the 18g is barely bigger, which is why I’m surprised at the lag there is. I’m going to keep going on tuning to see how it all ends up before I really make a whole judgement on the whole package, though.


Kinja'd!!! DogonCrook > FrankenBlaster
09/08/2015 at 19:06

Kinja'd!!!0

Get some headers with smaller dia primaries. I imagine the stock headers are tuned for max hp, because the stock turbo doesn’t have much lag. Small diameter pipes will handle way more power than you are making, and anything it lops off the top you can make up for with a bit more boost. Do some research though, generally everybody likes to post big numbers so it’s hard to find good ones tuned for driveability, and there are a lot people stuck on bigger is better.