Halfway through the engine swap!

"Not a Sunburst Miata" (moezsayani) 09/23/2019 at 10:54 • Filed to: None

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BP4W out of a 99 Miata going into my 91. Keeping the NA6 5 speed transmission and I already have a 4.3 Torsen. Should have the rest of it knocked out this week!

functionoverfashion > Not a Sunburst Miata 09/23/2019 at 10:59

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It feels like halfway, doesn’t it? The only engine swap I’ve done was in a boat, and still, having one engine out and the other ready to go back in, turned out NOT to be halfway... ugh, details. 

Maxima Speed > Not a Sunburst Miata 09/23/2019 at 11:03

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Why  engine have no Doritos? Needs more Doritos.

dogisbadob > Not a Sunburst Miata 09/23/2019 at 11:03

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not an LS? :p

The Crazy Kanuck; RIP Oppositelock > Not a Sunburst Miata 09/23/2019 at 11:05

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1/10, not a 12v cummins.

Not a Sunburst Miata > functionoverfashion 09/23/2019 at 11:09

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Luckily the BP4W and the B6 are pretty close to interchangeable. No fab work needed, same mounts, etc. Just need to modify a couple sensors and a couple adapter plates. its probably closer to 45% done, but this is a pretty common and easy swap.

functionoverfashion > Not a Sunburst Miata 09/23/2019 at 11:15

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SWEET! That’s awesome, can’t wait to see/hear it go! 

Aremmes > Not a Sunburst Miata 09/23/2019 at 11:15

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Noyce. Are you using the B6 ECU, an aftermarket unit, or carrying the BP-4W ECU over? If the former two, are you doing anything to operate the intake runner solenoid?

SBA Thanks You For All The Fish > Not a Sunburst Miata 09/23/2019 at 11:23

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Halfway has always been the point where the bank-account-drain really started for me...

Not a Sunburst Miata > Aremmes 09/23/2019 at 16:22

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Using the B6 ECU for now, but I have a SpeedyEFI ready to throw in. Not worrying about VICS at all , as I have a square top manifold on the way and I’ll swap them in the next few weeks.