Is a Ported Throttle body worth it????

[Jason@JacFab]

Originally Posted by DCC1464

So ill post this as i have not seen any info on it.

A ported throttle body with an electric throttle (ie no throttle cable but computer control) is done by removing a small bit of the interior "lip" to allow more air in though the throttle blade position then the computer thinks (18% open when computer thinks 15% open ). This being said the same results can be achieved by a competent tuner by just adjusting your ecm throttle table via tune to allow more air or open more by throttle response. A ported throttle body is a great idea if your not going to tune, but is kinda wasted money if your gona tune as its two different mean to achieve the same results.

I say all this to inform not to bash the product, i have a vmax throttle body and love what it did for throttle response but knowing what i know now, i would have just got it done with my tune. Hope this clears up some info for peeps

If you think a good tuner can get "ported TB" type throttle response, what do you think they could accomplish by tuning with a ported TB installed? Porting is mechanical. Doesn't matter if the TB is DBW, or cable controlled, it's still a mechanical operation. There is more going on than simple tuning can accomplish.

[DCC1464]

Please do explain then, the mechanical difference that cannot be achieved by tuning on a DBW. I would like to hear your informative argument, other then you just alluding to me having no idea what i am talking about.

[Jason@JacFab]

Mechanical, meaning the TB receives air flow quicker from porting when the blade moves off of the idle position. It's still a mechanical process no matter which way it's operated (DBW or cable). Porting removes material from in front of the blade and in return changes when, and how much tip in off idle air the engine receives.

Can you change the tune? Yes. But you can't tune it to be as good as a properly ported throttle body. No matter what you do with the tune, you can't magically tune the material removed by porting out of the throttle body.

[Blueforce]

I have just received my Bo White stage 2 throttle body and I already have CAI, scoop, Lt's, full 3" catback, and a custom tune, as soon as I opened the throttle body I compared it to the stock one and you can definitely tell it fixes some short comings of the stock one from the porting. So, I took my car for a drive before install and it was like normal. Installed the new TB and wow, instant improvement in throttle response. That little bounciness when you're shifting around is pretty much completely gone. It's like driving my cobalt again, so easy to drive. Not that the camaro was hard to drive in the first place but now its so much easier and there's no little bit of bouncing probably due to delay of air. Car feels a bit faster too. I wish this would of been one of the first upgrades I did. Very impressive. I thought it was going to be kinda bs too but its not.

[axis]

Originally Posted by DCC1464

Please do explain then, the mechanical difference that cannot be achieved by tuning on a DBW. I would like to hear your informative argument, other then you just alluding to me having no idea what i am talking about.

What you are eluding to is two different things. No amount of porting will open the TB blade any quicker. That is a tuning issue. What porting a Camaro TB will do is, allow the blade to be more open, sooner. There is a "hump" at the base of the TB that the blade must overcome, before air can more easily flow in. This is where the increased throttle response comes from. Bo goes one step further and does his shaft mod to actually decrease the amount of material in the blade mechanism, thus allowing more air to flow in through the same diameter TB. Here is a picture to illustrate the differences. Note the top TB is the stock one and you can't see the bottom of the blade, because of the hump. I think the one on the right is the Vmaxx and the left one is definitely Bo's, with the shaft mod.

[Cyber Gray]

Originally Posted by axis

What you are eluding to is two different things. No amount of porting will open the TB blade any quicker. That is a tuning issue. What porting a Camaro TB will do is, allow the blade to be more open, sooner. There is a "hump" at the base of the TB that the blade must overcome, before air can more easily flow in. This is where the increased throttle response comes from. Bo goes one step further and does his shaft mod to actually decrease the amount of material in the blade mechanism, thus allowing more air to flow in through the same diameter TB. Here is a picture to illustrate the differences. Note the top TB is the stock one and you can't see the bottom of the blade, because of the hump. I think the one on the right is the Vmaxx and the left one is definitely Bo's, with the shaft mod.

So you suggest tuning the car after installing a ported TB to get the best of it?

[tekkin5]

I am gonna try it out

[RS Speedriver]

yes very worth it. what kinda silly question is that