Tech guys: If I do decide to go this route, what is the formal process for getting the swap approved before I show up for the first annual tech inspection? Is there a form to fill out? What specific documentation do you need to see? Let me know what y'all need to see to make it legit. JDM 01-05 Mazda Miata 1.8L Engine JDM BP6D 6 Speed Manual Trans Mazda BP. What does this translate to in actual power with a tune? Has anyone done back to back pulls with the cam swap alone? (Exhintake or BP5A as they are extremely similar) 2-3 hp and I'll pass, 6-8 and I'll throw down the money.
Miata jdm engine mod#
Miata guys: is it worth the cost? The lift is the same as an exhintake mod (0.025" or so more than the BP4W cam) but it has a bit more duration. I want to be competitive with this build so I am inclined to just pony up the cash. All JDM Parts JDM Mazda Eunos Cosmo 13B RE Twin Turbo Engine -JDM of California. Mazda Miata 1994-1997 1. Buy the JDM engine for $1200-1700 and take no VPI points or 2. The way the rule is written, and has be clarified in the tech knowledge base is that to run this camshaft I can either 1. I already have points allocated for an intake manifold (25pts) and a header (25pts). It was used from front-wheel drive economy applications to the turbocharged full-time 4WD 323 GTX and rear-wheel drive Miata. We bought the car for a cool grand with a running (barely) engine. The Mazda B-series engine - not to be confused with the Mazda B-Series truck - is a small-sized, iron-block, inline four-cylinder with belt-driven SOHC and DOHC valvetrain ranging in displacement from 1.1 to 1.8 litres. JDM 94 95 96 97 Mazda Miata BP MX-5 1.8L DOHC Engine 5 Spd Manual. The issue here really comes down to cost for us. One could lawyer their way through whether the testing and rating standards are the same in Japan as they are in the US and maybe figure out the power difference is more that 3%. But hey, Free camshaft!įor reference the exact same camshaft is used in the Mazdaspeed Miata and has the same part number: BP5A The rated power difference as stated by the official sources is indeed within 3% between the USDM and JDM engines. That intake manifold only came on JDM VVT cars. Swapping these 1.6s in a na6 is doable (they are mainly the same engine) but they have a. I looked into this a while back, the problem is that in Japan (and Europe I believe) they had 1.6s in later model Roasters. If you are looking for a 1.6 be careful what car it's coming from. The Parts Badger guys claimed it also came with the coveted "Square top" intake manifold but they were mistaken. If you are swapping a 1.8 you are good to go, straight swap. The BP5A engine is different from the USDM engine by only one part, the intake camshaft.
I also want to be as transparent as possible with the build so I can focus on the racing.įor our car (1999 Miata w/ Hard-S package) this rule refers to the BP5A engine that came in 98-00 JDM 1.8L Miatas. The model continued the MX-5s philosophy of being a lightweight, front mid-engine, rear-wheel-drive roadster while featuring numerous performance improvements, however lacking its predecessors retractable headlamps. I need to first figure out what route to go with the engine. The Mazda MX-5 (NB) is the second generation of the Mazda MX-5 manufactured from 1998 until 2005. I will start a build thread on our new car, currently called LR2 (Love Racing 2), once I finish the the build schedule.
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