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View Full Version : 90 vs 93 supercharger.



Falcon20x
05-05-2017, 11:08 PM
Is there a difference between the two that would cause the earlier one to be louder?

The whining is noticeably louder on my 90. I can hardly ear it on my 1993.

The video below are not mine but sound excatly like my cars

https://m.youtube.com/watch?v=K6U7B00UzMQ

https://m.youtube.com/watch?v=rQcYrlimOYQ

BUDXR7
05-08-2017, 10:31 AM
Is there a difference between the two that would cause the earlier one to be louder?

The whining is noticeably louder on my 90. I can hardly ear it on my 1993.

The video below are not mine but sound excatly like my cars

https://m.youtube.com/watch?v=K6U7B00UzMQ

https://m.youtube.com/watch?v=rQcYrlimOYQ

I'm by no means the most experienced on here but I know that they whine under boost. Check to make sure your bypass valve is functioning properly on the 93.

Tim Groth
05-08-2017, 12:21 PM
89-93 M90s are all the same...are there intake differences between the cars? Usually that will make the whine more noticeable if no other mods.

-Tim

SuperCoupeDave
05-08-2017, 04:52 PM
Is there a difference between the two that would cause the earlier one to be louder?

The whining is noticeably louder on my 90. I can hardly ear it on my 1993.

The video below are not mine but sound excatly like my cars

https://m.youtube.com/watch?v=K6U7B00UzMQ

https://m.youtube.com/watch?v=rQcYrlimOYQ

The reason those 2 are so loud is because they have an OD pulley. My bone stock 89 isn't that loud.

Falcon20x
05-08-2017, 11:14 PM
89-93 M90s are all the same...are there intake differences between the cars? Usually that will make the whine more noticeable if no other mods.

-Tim

Both cars are bone stock with original equipment

Falcon20x
05-08-2017, 11:15 PM
The reason those 2 are so loud is because they have an OD pulley. My bone stock 89 isn't that loud.

That would make sense. Mine are stock cars