Loud whine from TCE throttle body [Archive] - GrandAmGT.com Forum


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09-09-2007, 09:50 AM
Ok so i just installed the 62mm throttle body for 60v.com...yeah and i started my car and its making this LOUD whine...any idea what its from?

09-09-2007, 10:10 AM
If it is a whine, then its not coming from the tb. If its a whistle, then its a vaccum leak.

09-09-2007, 10:13 AM
its a whine....

09-09-2007, 10:20 AM
I took it back off...everything is right....and is this normal? the little cut out on the back?

09-09-2007, 10:30 AM

09-09-2007, 11:14 AM
k nm problem fixed.it was the gasket

09-09-2007, 11:48 AM
Cool glad you got it fixed, feel a difference?

09-09-2007, 12:51 PM
yea...i havent like opened it up yet....but what i have done,its nuts...the sucking is loud...i love it. well worth it and it looks sharp

09-09-2007, 12:53 PM
Cool deal. Pics? :)

09-09-2007, 12:59 PM
yeah, that sucker does get pretty loud. Until my car warms up it sounds like a damn tornado!

09-09-2007, 01:08 PM
i love it....great investment. As for pics,i dont own a digital camera, I know Jared has pics

09-09-2007, 04:58 PM
yeah, mine makes a slight whistle too, but only in the mid throttle range, so I don't hear it all the time.

09-09-2007, 05:11 PM
mine whines at startup too until it warms. I have the 3500 uim and adapter from the 60* store so it shouldnt be a gasket problem. I have checked everywhere for vacuum leaks and have found none.

09-09-2007, 06:15 PM
yeah, mine makes a slight whistle too, but only in the mid throttle range, so I don't hear it all the time.

mine is exactly like that too

09-09-2007, 06:16 PM
wow i didnt mean to make that sound weird

09-09-2007, 06:26 PM
It also might just be characteristic of having more air drawn into the engine. I know that with the CAI you can hear a slight whistle at idle, so it'd make sense to hear it louder with more airflow...

09-09-2007, 06:45 PM
thats what i was thinking. Its odd that it goes away after the motor warms though.

09-09-2007, 06:52 PM
its because its idling higher till it warms up.

09-09-2007, 07:16 PM
well there we go, i have my answer. Thank you.

09-09-2007, 07:21 PM
im suprised...i didnt think itd make much of a difference...you can feel it

09-10-2007, 06:18 PM
i was driving today....it sounds like a turbo when i let go of the gas peddle...the whistleing

09-11-2007, 01:55 PM
You have a stock UIM correct? Might be mod I jump on. How much are those bad boys running?. Looks like ZZP is out of stock on the GA Downpipes.. This mod plus AGX's might cure my mod itch..

09-11-2007, 02:37 PM
the stock UIM if you want to take advantage of the throttlebody you have to port the upper to match it.

took me like an hour or so with breaks to bore out the upper.

09-11-2007, 04:23 PM
meh...i have that tce throttle body with a stock upper....the cars faster....im not complaining

09-11-2007, 07:25 PM
did you port out the upper

09-11-2007, 07:45 PM
no, i said it was still stock

09-11-2007, 07:48 PM
i have a ported upper fs, but the plenum is still 56mm and would need to be bored out.

09-11-2007, 07:53 PM
i have no money right now with school and all. I have had no problems what so ever with the new TB and stock upper. Yea theres a lot of sucking from the cone,hasnt set off any codes and the car hasnt been running rich nor lean

09-11-2007, 11:22 PM
well if you didnt bore it out you kinda wasted your money cause your not taking full advantage of the 65.

yeah you have a 65mm tbody but the plenum opening is still 56mm. so whatever extra air is getting sucked in is just bouncing off the extra material instead of flowing straight in.

i have one to but i ported my plenum out so theres no restriction. theres a 1/4 inch of extra metal thats getting in the way.

09-12-2007, 11:15 AM
im curious what you used to bore out your mani? I was looking at having ben do it but he wanted $80 to bore it and ship it back and forth while i found a used ported 3500 uim for $140. No brainer there. Now i am having a bitch of a time selling my ported mani.

09-12-2007, 12:14 PM
about 1 1/2 hour of my time and a dremmel. mostly the sanding drums were used.

he charges 80 cause it kinda time consuming takes awhile to do it.

i then bolted the gasket without the throttlebody on and used the dremel to open up the gasket to the opening.

this prob cost me about 45 bucks. 30 for the manifold from the yard and then the drum things for the dremel.

i went with the 00+ manifold vs the older and more restrictive 99 below one. i got pics i can post later to show the difference. most of its in the kneck of the plenum.

im going to try the 3500 one after winter time once i get one. but until then this will do.

09-12-2007, 01:37 PM
ummm i never said i have a 65....i have a 62

09-12-2007, 03:37 PM
same damn thing basically. if you didnt remove the extra material on the plenum then your not getting the full advantage of it.

the 3mm difference is irrelevant. theres still a big amount of material that the air is bouncing off of and creating turbulance.

09-12-2007, 04:49 PM
damn i thought it was alot more involved with that. Thank you. Now if someone with a big TB wants my mani i can do it for them.

09-12-2007, 05:57 PM
well im not saying that i wont ever get one. I just dont have the funds right now with school. It is going to be my next purchase,no doubt