So...it happened. (I got a Speed 3) - Page 2 - 2004 to 2016 Mazda 3 Forum and Mazdaspeed 3 Forums
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post #11 of 21 (permalink) Old 12-26-2016, 11:11 PM
mangosmoothie
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Sounds like you have a good plan in mind. 375 is definitely doable reliably on a stock block, so long as the torque curve is kept in check.
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post #12 of 21 (permalink) Old 12-27-2016, 03:48 AM
jedibright
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I am excited with your first "Power Goal", good luck. Keep us posted.
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post #13 of 21 (permalink) Old 12-27-2016, 09:43 AM Thread Starter
VoodooJef
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Originally Posted by jedibright View Post
I am excited with your first "Power Goal", good luck. Keep us posted.

Thanks! We managed to squeeze 40hp out of a 2016 2.0L and still got 40+mpg, so I definitely see the Speed 3 responding favorably with good planning. I`ll probably do another build diary/tune chronicle thread for it, but I can`t say it`ll go as quickly as the last one LOL. The Speed 3 costs a lot more to modify!!
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post #14 of 21 (permalink) Old 12-27-2016, 07:42 PM
johnykalbo
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Thanks! We managed to squeeze 40hp out of a 2016 2.0L
Did you get a stock whp number by any chance?
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post #15 of 21 (permalink) Old 12-27-2016, 09:02 PM Thread Starter
VoodooJef
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Originally Posted by johnykalbo View Post
Did you get a stock whp number by any chance?
The `16 or the Speed? The Speed wasn`t bone stock when I got it, but we did get a stock whp figure for the `16 of 130 and some change.
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post #16 of 21 (permalink) Old 02-27-2017, 05:53 PM Thread Starter
VoodooJef
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So, the Speed saga continues. Been very, very happy with it so far. Did all the things, had it tuned, etc and so on. Tomorrow the new turbo shows up. I`m going to try and install it this weekend if I get a base tune map for it in time. For those who may be familiar, I went with the BNR S4v2, which is a fairly meaty turbo. HP goals aren`t really much more than I have now, for the time being. Sure, we`ll get another 40hp out of it on the hardware on hand, but really just trying to establish a safe and efficient power band, and put the torque curve where it needs to be in order to keep the rods happy. I`ll add methanol injection in a couple of months and go for 425hp/385tq (already making that torque number). Hopefully over the summer I can get a set of rods and pistons for it and we`ll try and crack 450hp before jumping into true aux fueling solutions. Pretty sure if I can get the fuel into it we can do a safe and drivable 465hp.
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post #17 of 21 (permalink) Old 04-09-2017, 03:52 AM
JDabzzz
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Any updates on this? @VoodooJef
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post #18 of 21 (permalink) Old 04-09-2017, 02:28 PM Thread Starter
VoodooJef
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Any updates on this? @VoodooJef
Yep. The turbo is in and it`s been running well. Hardly cracked the shell with the tune so far with a couple of hardware issues slowing us down (the methanol controller was defective out of the box and the wastegate actuator is doing 24psi on spring pressure alone. The new controller is in and working perfectly, new actuator should arrive tomorrow). Still on the first map revision since methanol, so fuel, timing, and boost maps have yet to even be dialed in. It`s making about 360hp/370tq now, with another 60 or so hp left to tune for. I picked up a workable engine yesterday to start building as well so I can really push the turbo to what it`s made for, but that`s secondary to getting the tune wrapped up for now.

I have to admit, I am loving seeing injector duty cycles below 90% at full boost with the methanol going now.
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post #19 of 21 (permalink) Old 04-22-2017, 08:16 PM Thread Starter
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Tune is just over half way done and I`m pretty happy so far. Had an issue with AFR that I just couldn`t figure out and as it turns out, the SWAS system starts to interfere with the fuel and timing in a very negative way once the HP starts getting up there. It`s fixed now (bypassed the SWAS system, a process for another thread) and ripped this one today:
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post #20 of 21 (permalink) Old 05-04-2017, 08:48 AM Thread Starter
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There`s more left in it, but even this isn`t safe on stock engine internals. Gonna confirm these numbers on the dyno today, then dial back the Tq until the forged motor is done in about a month. Then it`s no holds barred.
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