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Old 04-13-2017, 06:19 PM   #1
2ndAmendFTW
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Default Is my transmission upgraded?

I bought a bugeye 3 years ago, 1 owner 60k, from a stealership. The car was "stock" but the ac lines had been bent indicating a bigger intercooler had been installed, so I knew it had been modded at some point. Ever since I bought the car 1st-4th have a slight whine to them but have held up for 20k miles stage 2 and 20k miles with vf48 at 280whp l with no issues. I'm wondering if this means theyve been upgraded, anyone have a way to check without pulling them out or repeated launches? Btw the one launch Ive had went without issues netting a 3.9 0-60 per the accessport
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Old 04-13-2017, 07:33 PM   #2
jkenna860
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No way to tell until you rip it apart... My guess would be no. Maybe you can find a complicated algorithm to calculating your gear ratios. But its tough to get accurate measurements i would presume
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Old 04-13-2017, 07:52 PM   #3
Bikelok
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Straight cut gears would be a very loud whine. A slight whine is probably just synchro noise.
You can try changing the fluid to quite it down.
Do some research on what fluids are recommended.
Like:
•Subaru Extra-S (or whatever they call their newer version)
•AndrewTech cocktail
•Uncle Scotty's cocktail
There are lots of other combinations too.
I won't push any one, but do some research and try them out for yourself.
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Old 04-13-2017, 09:26 PM   #4
tacbat
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By chance did your bugeye come out Virginia?
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Old 04-14-2017, 12:38 AM   #5
monkeyposeur
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You might have group n trans mounts and/or motor mounts. They increase the gear noise in the cabin compared to stock mounts.
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Old 04-14-2017, 10:36 AM   #6
2ndAmendFTW
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Quote:
Originally Posted by tacbat View Post
By chance did your bugeye come out Virginia?
It may have, the car was sent to the dealership in York PA through an auction and I think the carfax said it came from VA originally. It is a PSM 2003 sedan, debadged wingless trunk, unpainted skirts, factory 6 disk, factory boost gauge, great condition body/paint even if it were modded the PO definitely took care of it, barely burns 1/2 quart in 3k miles if even that much (still doesn't even burn a half quart). Only issue was clutch slipping when I test drove it, but the dealer replaced it before I took the car.

Keep in mind this was bought 3 years ago. Would be awesome if the PO was here lol, then I'd know for sure. But yeah, was leaning towards synchro noise myself just due to the fact that straight cuts are obnoxious, however I know PPG helicals are a tad noisier than stock.

Last edited by 2ndAmendFTW; 04-14-2017 at 10:40 AM. Reason: more info
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Old 04-14-2017, 12:27 PM   #7
mrsaturn7085
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Study the 5MT manual and find out what bolts you can remove and shine a light down. If you have straight cut gears, it will be easy to see the difference.
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