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Silly thoughts. 1.8L miata motor swap in a 510


Lozer

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so its rear sump. weighs 290lbs wet and dressed (internet says so)

24.13" height from bottom of oil pan to top of oil cap.

exhaust is on the correct side 

and butt loads of support and there showing alot for cheap with trans and ecu.

 

Discuss.

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It's been contemplated before.  I believe Bob (the guy who built the 520 on a Miata chassis) started the swap, but didn't finish it.  I like the idea, but many of the normally aspirated Miata's that I race against seem a bit gutless.  With a blower though, I bet it would make a 510 scoot pretty well.

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The biggest plus for the Miata engine swap is the gear ratios in the transmission.

 

If you have never driven one, that stubby little short throw stick with the ratios right on top of each other will suck you right in. Look at the rpm drops when shifted at 7000 rpm.

 

1st - (3.14) to 2nd (1.89) - 2787rpm (7000 to 4213)

2nd  to 3rd (1.33) - 2074rpm (7000 to 4926)

3rd to 4th (1.00) - 1737 rpm (7000 to 5263)

4th to 5th (0.81) - 1330 rpm (7000 to 5670)

 

Here is a link to a calculator that will work these numbers up for any transmission/final drive/tire-wheel size.

http://www.gearboxman.co.uk/download/gearspeeds.v2.o95.xls

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The biggest plus for the Miata engine swap is the gear ratios in the transmission.

 

If you have never driven one, the stubby, short throw stick with ratios right on top of each other will suck you right in. Look at the rpm drops when shifted at 7000 rpm.

 

1st - (3.14) to 2nd (1.89) - 2787rpm (7000 to 4213)

2nd  to 3rd (1.33) - 2074rpm (7000 to 4926)

3rd to 4th (1.00) - 1737 rpm (7000 to 5263)

4th to 5th (0.81) - 1330 rpm (7000 to 5670)

 

Here is a link to a calculator that will work these numbers up for any transmission/final drive/tire-wheel size.

http://www.gearboxman.co.uk/download/gearspeeds.v2.o95.xls

 

 

1st - (3.14) to 2nd (1.89) - 2787rpm (7000 to 4213)....... 39.5%

2nd  to 3rd (1.33) - 2074rpm (7000 to 4926)................... 29.5%

3rd to 4th (1.00) - 1737 rpm (7000 to 5263).................... 25%

4th to 5th (0.81) - 1330 rpm (7000 to 5670).................... 19%

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