Unfortunately we blew the stock engine in the Mazdaspeed 3 on the dyno. All the tuning was done by me, and many would agree that it was not overly aggressive. It's hard to say what caused the failure at this point, but we noticed knock retard values above 5 degrees in the data log right before it let go. This didn't really make sense as we were running 94 octane pump gas mixed with 3 gallons of in tank methanol. The next possibility in our minds, is that using the WOT box as a rev limiter while making this much power and generating this much heat with back to back runs, might have stressed the engines stock internals to a point of no return. We already know that the OEM pistons and connecting rods are the weak points of this engine. At this point we've sourced another used CX7 long block and are going get it built with forged connecting rods, pistons, upgraded bearings, and possibly some head work. Enjoy the video! Please like, share, and subscribe :)
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Mods in this video:
1. DM PCV Plate w/ Dual Vented Cans
2. Cobb Accessport V3 (self tuned)
3. Aeromotive 325 LPH Fuel Pump
4. Bfg G-force Comp 2 All Seasons
5. Stratified Guardian Angel V3
6. Full Race Exhaust Manifold
7. Ngk One Step Colder Plugs
8. 6th Port Aux Fuel Injection
9. Corksport Intake Manifold
10. Jbr 88a Rear Motor Mount
11. Jbr 88a Trans Motor Mount
12. Jbr 80a Pass Motor Mount
13. Custom Radiator Ducting
14. Autotech HPFP Internals
15. Eibach Lowering Springs
16. Corksport Injector Seals
17. Jbr Egr Block Off Plate
18. Cpe Catless Downpipe
19. Cfm Oil Breather Cap
20. Jbr Raider's Air Damn
21. MST Suzuka Wheels
22. Koni Yellow Shocks
23. Gen 2 Valve Cover
24. CS 3.5 Inch Intake
25. Cobb 3 Port Ebcs
26. Fidanza Flywheel
27. Bnr S4 V3 Turbo
28. Jbr Under Route
29. Cobb Xle Bpv
30. AEM Gauges
31. Cnt Catback
32. Tr8 Fmic
33. Wot Box