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1,8 jr sc on 1.6?

Old 10-05-2010, 12:09 PM
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Default 1,8 jr sc on 1.6?

There is a guy selling a 1.8 JR supercharger, I was wondering if I can use it for my 1.6 shortnose. The kit comes with a 8psi pulley. Im going to be using Megasquirt with wideband and 550cc injectors so tunning with powercrap is not an issue.
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Old 10-05-2010, 12:57 PM
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the charger is the same, the kit is not, all the mounting stuff is different.

using a charger on a shortnose can make the nose fail faster.
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Old 10-05-2010, 02:58 PM
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Originally Posted by jeff_man View Post
...using a charger on a shortnose can make the nose fail faster.
Good to know. I had heard about possible issues with JR superchargers and 1990 Miatas, but never made the connection. On a side note (read hi-jack thread) any potential issues with doing a pulley swap from the stock 5 psi to 8 psi on a '93 running a JR unit? Anything I should upgrade?


(new guy, but already dealt with Chuck,6957650.story)
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Old 10-09-2010, 04:14 AM
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To the OP:

You need to get/fabricate the mounts and the idler system.


Same as any boost upgrade, you need to consider increased fuel/ spark control.
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