Recently ive put a bit more HP to the wheels and raced/launched the car a few times. After cutting a few 1.65 60ft’s at the track and on the street I noticed I have this pretty loud whine coming from the front end of the car only in 4th or 5th gear while cruising. The sound comes in between about 2800-3800rpm’s and 15in/vac to 0psi. When in decel or boost I don’t hear the noise or in lower gears like 1st 2nd or 3rd. Im just wondering where this noise might be coming from. TC? Clutch? Front diff.? I notice nothing wrong with the car at all, just that damn loud whine after I raced it. I hope nothing is on its way out, especially a TC.

 

You problably blew the front diff

 

I doubt its blown, like I said the car is driving fine and the sound only comes in at certain gears, rpm and throttle position. Its like a humming/whining, I guess that’s the best way to describe it. I raced last night and launched the car twice and noticed it got worse…the first time I noticed it was after the evo/sti shootout at etown this past weekend.

 

when was the last time you checked your tranny/xcase fluids?

 

umm never...the car has 20k miles on it. I was thinking about upgrading the trans fluid to Pennzoil synchromesh...should i upgrade the TC fluid also? If so what would i use for the TC?

 

That fluid is not and upgrade.

 

would you like to elaborate a little more on that for me?

 

Mitsubishi DiaQueen for the TC

 

no use redline mt90 for tranny and redline 75w90 for tcase and rear diff

 

Is everyone telling me to change these fluids b/c you guys think it will get rid of the noise or just want me to upgrade the fluids?

 

The whine at cruise is your TC. You can try changing your fluids. Only use Diaqueen dont listen to anyone there is no reason to put anything else in you TC or rear diff.

Oh and Syncromesh in the tranny is a definate upgrade shifts way nicer I swear by the stuff as does alot of the members on this site. Shep and TRE both recomend this and BG Syncroshift in the tranny exclusively. The syncromesh is cheaper but you have to change it out a little sooner

 

Never

 

Your Drunk. The stuff they use at the dealer is crap Pensoil Syncromesh or BG Syncroshift only

 

I say the TC is going bye bye. Type in "tornado siren" in the search bar above, and see if it describes what you are talking about. good luck.