Vitor's 57.5mm bored throttlebody
Vitor's 57.5mm bored throttlebody
Obviously it's exactly like a stock throttlebody to install.
There seems to be a slight whistle at part throttle, it's kinda annoying, but you can't hear it with the stereo up a little.
Honestly, I can't say I notice this one at all. I'm sure it added a bit of power, but I can't tell.
EDIT: It whistles even though matched to the intake manifold.
There seems to be a slight whistle at part throttle, it's kinda annoying, but you can't hear it with the stereo up a little.
Honestly, I can't say I notice this one at all. I'm sure it added a bit of power, but I can't tell.
EDIT: It whistles even though matched to the intake manifold.
Last edited by fusion210 on Mon Apr 09, 2007 10:33 pm, edited 1 time in total.
- 98DOHCSport
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Lol I had the same whistling problem in a 57mm bored tb. When I port matched the plenum to the tb it went away sadly. I kinda liked it
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'96 black coupe- #4
'97 magenta coupe- #10 - 13.379 @ 101.07 mph
'04 SXT mtx - #45 - GF's DD
'96 ACR
'95 Astro Van
'11 Chevy Express
'02 atx - #48
'98 Intense Blue R/T - #49
'04 SRT-4 - #50
'99 Intense Blue R/T - #51
52 and counting, when will it stop?
- Neonperfect
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Same here - I have an MPx 55mm TB, bought it when it first came out, which was about 6-7 yrs ago, IIRC... When I first installed it, it had a bit of whistling, but whn I port-matched the plastic IM and then put the TB spacer on, it went away completely - and I definitely felt MUCH better throttle response and acceleration seemed a bit better.chipdogg wrote:Lol I had the same whistling problem in a 57mm bored tb. When I port matched the plenum to the tb it went away sadly. I kinda liked it
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