Good-Win Racing Mazda Performance Parts

Good-Win Racing 2.5 Conversion!

2006-2014

Imagine 200 HP at the Wheels!

Miata MX5 2006-2015 · Engine-Conversions


Part Number: 61-1506

Application: 2006-2014

Price: $2,999.00

Quantity:

Good-Win Racing 2.5 Conversion!
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BRAND NEW 2.5 Mazda Factory Motor for TORQUE like you have never felt in your MX5 Miata before! Same motor used in our Project Blue 2006, see our forum for lots of additional pictures and materials. You bring us your 2006-2014 MX5 and legendary Miata Guru Rocky "Miatomotive" will use the crank pulley and oil pan from your old 2.0 to fit a brand new 2.5 motor into your MX5, including porting the intake manifold from your 2.0 to mate neatly with the NEW Mazda L5Y0 2.5 motor (note that if your old motor had rod failure then likely need new oil pan).

This price does not include the labor for install and you need our $799 ECU reflash package also available on this site.

Other options to consider are our upgraded engine mounts, headers, radiator, and clutch (all are easier to do if done at the same time as the motor transplant). Or, skip all the extras except the reflash and for about the same money as forced induction kits you get your extra power and torque INSTALLED! And you get it without a big jump in extra weight on the front of the car, extra belts and complications, just pure smooth BIGGER factory motor torque everywhere from start to redline!

Low line is original best stock run on this car (lucky to hit 140 range on this dyno AT THE WHEELS), middle line is with RoadsterSport Max Power 1.6 Inch Header, RoadsterSport 2.5 inch Midpipe and RoadsterSport 2.5 inch muffler (upper 160s range)....and high pair of overlapping lines are with 2.5 conversion with 200 HP at the WHEELS using our NEW MAX POWER 1.8 inch primary header, RoadsterSport Helmholtz 2.5 Midpipe, and SuperQ muffler, with 195 Ft/lbs of Torque! The stock exhaust can be used but results will be choked by at least 30 hp!

BRIAN's APPLICATION NOTES: If you have a car with blown motor towed to us for this conversion, please make sure trans is NOT in gear during the tow or you may be needing a trans too! INSTALLED HERE BY ROCKY MIATAMOTIVE, the installation side of the shop, under the same roof. Sorry, we do NOT ship motors.

*** Product images may differ from actual product appearance ***

REVIEWS

I got the oil cooler installed and I'm diggin' it! Thanks. (product # 10-10012)

-- Shon

After reading many other positive reviews on both the GWR and Miata forums I finally decided to buy this product. My main concern for many months was whether or not I was up to the task of installing the header. But with the excellent instructions on Brian's forum as well as several Miata forum threads it turned out easier than I expected. After receiving notice that the header would arrive on a Friday afternoon, I began the disassembly process. After about 3 hours I had the stock manifold out. Later that afternoon the new catted header arrived right on schedule. And it is a thing of beauty. I opted for the stainless version. Installation on Saturday morning took another 3 hours, although I could have shaved some time off of that but I was actually enjoying the process of double checking torque values and cleaning up my engine compartment. I already have the GWR catted midpipe, so that connection was a snap. I put everything back together, reconnected my battery, and went for a drive. NO CODES! Nice throaty sound with my RSII muffler, and a significant boost in power and low/mid torque. Another happy camper here. I since have added a M-E tune and I feel I have realized all of the gains that Brian has achieved on his 2012 project Miata. I've put several hundred miles on my Miata since the install with zero problems. This is the car that Mazda should have built all along. Thanks Brian.

-- Ron P.