Throttle Body
Thread Starter
Racer
Joined: Jun 2020
Posts: 427
Likes: 54
From: oroville ca
Throttle Body
I am just curious about TB's and lately I have seen many different ones for sale and for swaps and such. It seems that there are a few ways to go regarding these and the performance one can gain from installing a larger or a ported one or one with a bronze colored blade or a silver bladed one.. Now I understand the carburetor and the gains to be had with different kinds such as cam's and with accelerator pumps double or single. The size of the venturies some have small or regular size primary and larger size secondaries and some have same size prims and seconds. But as far as throttle bodies I have noticed if they are ported and with a bronze colored blade they are better ? performance wise. I would like some info behind all of the different TB's and how porting a TB can make such a big difference because I do not see how... let me know thanks alot
Drifting
Joined: Apr 2016
Posts: 1,286
Likes: 610
From: DFW Texas
The silver blades are typically found on the LS2 & the gold blades on the LS3 on the C6. Try reading through the Soler Perfomance web pages. They can give you much information regarding the benefits of modified TBs on the C6. Link below:
https://www.solerengineering.com/generalmotors
Good luck on your research and let us know what you choose to do & the benefits of a TB upgrade should you go that route.
GD
https://www.solerengineering.com/generalmotors
Good luck on your research and let us know what you choose to do & the benefits of a TB upgrade should you go that route.
GD
Last edited by gdmoore01; Jul 11, 2021 at 11:49 PM.
Thread Starter
Racer
Joined: Jun 2020
Posts: 427
Likes: 54
From: oroville ca
Great website an thank you for this info I am more informed and now can make a more informed decision when I decide to go with a new better TB. all of what is in this Forum is like this best advise (mostly) and fantastic experienced knowledge that is readily available by just asking and that is priceless to a person starting out on his or her Mods for the car they are doing the Mods on (Corvette) I am very grateful to be a part of this group and all of the benefits that come with it ..Thanks !! Mr. Moore
Safety Car
Joined: Aug 2017
Posts: 4,243
Likes: 1,133
From: North Myrtle Beach SC
Ported TB is pouring $$ down the drain.
silver blade tb is for all 2006-2008
gold blade FB is for 2009-2013
the silver and gold cannot be swapped because they open different directions. Can possibly be changed in the tune?
silver blade tb is for all 2006-2008
gold blade FB is for 2009-2013
the silver and gold cannot be swapped because they open different directions. Can possibly be changed in the tune?
Last edited by farmington; Jul 12, 2021 at 03:57 PM.
Race Director
Joined: Dec 2013
Posts: 12,502
Likes: 3,628
Color of the vane, is the direction that it will open. If your car now has a silver vane TB, will need to replace it with another silver Vane unit.
Note, can use HP tuner to make software changes for different direction opening Vane to work, but is just more money on Tuner software.
As for ported TB, get a air flow chart of the unit in its vane positioning from all the way closed, to all the way open. The reason that the factory does not port, is they need the TB to be as close to liner in its opening/flow rate. On the ported unit, not the case and in fact end up with a lot of none liner/flat spots in the vane opening rate instead.
As for stock TB, flows fine up to around 700hp in a linear air flow rate, and even higher if you are running a super charger as well.
So truth is, on some of the ported over size TB's, you are just just turning the gas pedal into a on/off switch, instead of a throttle pedal that is useful for tire control around a high speed road course on the push out of the corners isntead. Same goes for the throttle enhancers that de-sensitivities the pedal and just causes the vane to open at a faster rate with less pedal push.
Note, can use HP tuner to make software changes for different direction opening Vane to work, but is just more money on Tuner software.
As for ported TB, get a air flow chart of the unit in its vane positioning from all the way closed, to all the way open. The reason that the factory does not port, is they need the TB to be as close to liner in its opening/flow rate. On the ported unit, not the case and in fact end up with a lot of none liner/flat spots in the vane opening rate instead.
As for stock TB, flows fine up to around 700hp in a linear air flow rate, and even higher if you are running a super charger as well.
So truth is, on some of the ported over size TB's, you are just just turning the gas pedal into a on/off switch, instead of a throttle pedal that is useful for tire control around a high speed road course on the push out of the corners isntead. Same goes for the throttle enhancers that de-sensitivities the pedal and just causes the vane to open at a faster rate with less pedal push.
