3.3TT Big Bore throttle body

[Toddasaurus]

I finally received my throttle body.

Sweet! Looking forward to your thoughts and findings.

 

[Whytiptoe]

I finally received my throttle body.

Yep I am for sure interested in if anything changes. Also while you have everything off would you take measurements of the manifold intake and the TB outlet?

 

[StungnTn]

I can do that, what are you getting at?

 

[Whytiptoe]

I can do that, what are you getting at?

My original response was stating the the OEM TB outlet is already the same size as the inlet to the manifold. If that is the case I do not see how a bored TB will help much without doing the manifold as well.

Where the BB TB bolts to the intake, if the TB is larger now it has to compete with a hard flat edge that will disturb the air flow due to a "backwash/backdraw" of airflow. Again I COULD BE COMPLETELY WRONG!!!

 

[niko]

I finally received my throttle body.

Let’s us know if u feel a difference

 

[General_Vodka]

Let’s us know if u feel a difference

I'm not looking for feel, I'm looking for results. Butt Dyno doesn't count lol.

 

[Walkerhunter]

Any new News on this yet?

 

[Spaceme17]

Here's a couple pictures of the old throttle body versus Big Bore throttle body from shark racing, I don't have numbers to show proof of any kind except for the way it feels when I drive the car and I'm glad I bought it

So which one is the bigger one?

 

[StungnTn]

Unfortunately, I have been unable to get the before & after dyno scheduled. I might go ahead and throw it on and just do an after dyno. Unfortunately, between my last dyno and now I've added the BMS intercooler, TIAL BOV, and switched out my XForce exhaust for Quicksilver catback & mids.

 

[StungnTn]

I installed it today, significant difference in throttle response. Tires break loose with very little effort, I'd say 20% throttle breaks the tires loose (ps4s) Butt Dyno states that there is a significant difference.

 

[turboAWD]

I once installed a Weber throttle body that looked much like this into my '84 Jetta GLI, whereas the OEM throttle body had 2 tubes/sections internally - the one that opened first was smaller - which I'm thinking gave a bit more air velocity? - and a secondary that was larger. The Weber hit a bit harder, but it felt like it was "all the way open" by 1/2 pedal - nothing really more to gain by pushing it the rest of the way. It turned the throttle mostly into an on-off switch. Maybe a bit faster, but much less sensitive to throttle settings.

Also similar to a pedal commander - it opens the throttle more for less pedal push, so feels quicker, but really isn't adding any more overall power, just reducing the "push the pedal" to "get the power" delay. I find myself reluctant to go full throttle in the Stinger, just because it feels excessive, and my last car was tuned to have a more sensitive throttle (on purpose) so that I only had to push 20% to get 50% of the power (something like that). Still need to install my pedal commander.. Haven't really driven much lately - filled up once since March..

Not saying it's 100% that, but I can totally see where that's a factor..

 

[Houstinger1]

Any plans to take it to the dyno now that you've added the throttle body? Part of me is curious if there are actual gains or if the throttle is opening prematurely/unevenly and is more akin to a mechanical pedal commander. When you are pressing the pedal down 20%, the throttle body is actually opening up to 100%.

 

[Toddasaurus]

Any plans to take it to the dyno now that you've added the throttle body? Part of me is curious if there are actual gains or if the throttle is opening prematurely/unevenly and is more akin to a mechanical pedal commander. When you are pressing the pedal down 20%, the throttle body is actually opening up to 100%. Or if there are truly more gains.

This.

Even so, I do appreciate your testing and findings.

 

[Robs GT]

Well I certainly appreciate your info and input, I received a lot of grief after installing my big bore throttle body so it's nice to have someone actually confirm and basically agree with everything that I said

 

[StungnTn]

Any plans to take it to the dyno now that you've added the throttle body? Part of me is curious if there are actual gains or if the throttle is opening prematurely/unevenly and is more akin to a mechanical pedal commander. When you are pressing the pedal down 20%, the throttle body is actually opening up to 100%.

I think you are correct, I definitely feel that this is a hardware pedal commander.

 

[Walkerhunter]

You guys have to think "Old School" on this one.... We use to do the same thing on Holley carbs back in the day and put bigger bore plates on the carbs and bore out the throat to get more air flow .... Granted it was a small gain but when you opened up the jets it made a world of difference... I am going to add this to mine soon. I don't need a dyno to see if it is faster dyno's are just a tool and being on the track or street is an entirely different thing than a dyno king. I have been Hot rodding since I was 13 yrs. old (50 years).

Just My Opinion,
Always have fun Racing

 

[Super Stinger]

Great day,

I have been looking into grabbing this throttle body as well as porting the inlet of the intake manifold! Has anyone dynoed their Stinger GT with this slightly increased throttle body yet?

 

[djerickd]

Any more reviews on this part??

 

[SL33P3R_GT]

I just purchased it, when it comes in I will have it dyno'd.

Any results?

 

[AusStinger]

I installed it today, significant difference in throttle response. Tires break loose with very little effort, I'd say 20% throttle breaks the tires loose (ps4s) Butt Dyno states that there is a significant difference.

Is it just me ? I read 2" 7/8" on both of those.