Ported TB

[DrummerDudeNJ]

Did some initial searching here because mysteriously this ad popped up in my FB feed lol ..... anyone here have experience with a ported TB? I know when I put one on my ‘01 Durango R/T years back I noticed a difference.

3.6L V6 Pentastar Ported Throttle Body - MMX Modern Muscle Xtreme

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[Gorilla57]

Highly doubt you’ll see any HP/TQ on a stock motor. The ECU would need to be tuned to support more airflow. If you have a turbo or supercharger, then you might see gains.

 

[DrummerDudeNJ]

Highly doubt you’ll see any HP/TQ on a stock motor. The ECU would need to be tuned to support more airflow. If you have a turbo or supercharger, then you might see gains.

Wouldn't a modified MAF sensor help with that?

 

[AFD]

Highly doubt you’ll see any HP/TQ on a stock motor. The ECU would need to be tuned to support more airflow. If you have a turbo or supercharger, then you might see gains.

I'm not at all doubting you, but that kinda goes against what the manufacturer is stating..

"you can experience better performance and 10HP over stock with no tuning required"

 

[DrummerDudeNJ]

I'm not at all doubting you, but that kinda goes against what the manufacturer is stating..

"you can experience better performance and 10HP over stock with no tuning required"

Wonder if you'd feel it in the butt-dyno lol

 

[AFD]

Wonder if you'd feel it in the butt-dyno lol

Probably the same way I felt an increased throttle response swapping out the panel filter. Was mildly noticeable for about an hour, then felt like the ECU readjusted itself and felt like stock again ever since.

Not 100% sure, but I'm guessing this throttle body would increase HP initially, but the ECU would just correct and dial things back again.

 

[DrummerDudeNJ]

Probably the same way I felt an increased throttle response swapping out the panel filter. Was mildly noticeable for about an hour, then felt like the ECU readjusted itself and felt like stock again ever since.

Not 100% sure, but I'm guessing this throttle body would increase HP initially, but the ECU would just correct and dial things back again.

I hear ya... hence why I was asking about the MAF sensor too.

 

[GATORB8]

I personally wouldn't screw with bolt-ons on a NA 3.6L. Most will be imperceivable and will cost big money per HP. Forced induction will be by far the best bang for the buck, although entry is expensive.

A tuner that changes the trans shift points will be more noticeable than anything.

 

[Gorilla57]

I'm not at all doubting you, but that kinda goes against what the manufacturer is stating..

"you can experience better performance and 10HP over stock with no tuning required"

This goes along with manufacturers of cold air intakes making 10-15HP. No one ever sees that HP increase. You can’t believe what they say without dyno graphs that show the actual points where you get the 10HP. Then, they need to show that the ECU doesn’t compensate and you end up with only a lighter wallet. The only real gains seen on a 3.6L are an actual tune, supercharger or turbo. Everything else is minimal, if any, gains for the amount of money you spend.

 

[DrummerDudeNJ]

All valid points all!! Thanks for the input. At least gaining insight and knowledge in this case is free lol

 

[jaymz]

I'm not at all doubting you, but that kinda goes against what the manufacturer is stating..

"you can experience better performance and 10HP over stock with no tuning required"

10HP where? I see a lot of bolt-on performance parts that advertise gains, but when you look at the dyno sheets, they're almost always at or near redline, and unless you're going to be running at your local 1/4 mile track, that's essentially useless horsepower.

 

[Old Jeeper]

Did some initial searching here because mysteriously this ad popped up in my FB feed lol ..... anyone here have experience with a ported TB? I know when I put one on my ‘01 Durango R/T years back I noticed a difference.

3.6L V6 Pentastar Ported Throttle Body - MMX Modern Muscle Xtreme

Its very difficult to get gains out of todays engines with investing a lot of money and time and effort.

Several years ago I put on Supercharger on straight 6 and was running 7 lbs of boost. Then summer showed up in the Sonoran desert and I could get on the freeway wither massive pre-set. I knew. how to solve it.

1) Hood vents to take the pooled engine bay hot air out

2) Cold air into the engine

Hood vents are easy but cold is another story. Being a former R&D, and Test engineer I began by buying cold air kits. NOT a single on gave seat of the pants and mpg gains.

Then I opened the hood on an old CJ and I saw a COLD AIR SYSTEM that was OEM!!!!! YES Jeep had CAI before anyone knew what CAI was. Then I knew I could build that and I did and attached to the headlight bucket. Of course the chrome ring around the headlight had to come out, but my mpg improved by about .5 in town and about 1 mph one the highway...and my pre-det was gone!

Jeep CAI worked and most of the stuff out there does NOT: WHY

Most use metal intake pipe + most just suck air from inside the engine bay and what you end up with is hotter intake air than what you had.

I ordered the CAI on my 2024 JLR-X, I also ordered on my 2023 JLR and that did show up when delivered we will see if my 2024 can deliver.

The problem today is the engine bay is KRAMMED with more stuff than you can shake a stick at. Very little room at the Inn.

The other option is a Snorkel and take advantage of the Ram effect on the highway with that. Little is gained in town at those speeds...I know because way back when I did a semi-snorkel-CAI.. Flat fender Jeep, with large diameter rubber hose connect to a number 10 can strapped to the flat fender. Did nothing in town but sure put seat of the pants on the highway...NOTE I also skipped going thru the oil bath air cleaner, so I covered my number 10 can with screen wire to keep the bugs from going down the intake.

 

[AFD]

10HP where? I see a lot of bolt-on performance parts that advertise gains, but when you look at the dyno sheets, they're almost always at or near redline, and unless you're going to be running at your local 1/4 mile track, that's essentially useless horsepower.

Probably a theoretical 10HP increase at 7k RPM, when the redline is 6,600 ?

Usually when any dyno graph shows a modest gain in a usable range, there's an equal loss just a bit lower in the powerband. Not always, but it seems quite common with most 3.6L bolt-ons. And testing is likely done before the ECU eventually readjusts itself to the change.

 

[1BadManVan]

A custom tune on these will net you the best bang for your buck in power. 11.3:1 compression motor severely de tuned from the factory to run 87 octane. Livernois tuning got some pretty big gains throughout the powerband on their tuning with it. As much as 40hp at some points in the powerband over stock.

That’s also why going forced induction on these PUG engines isn’t a good idea because of the high compression

 

[2nd 392]

Little bang for buck unless you spend large bucks for the whole schbang that works together. V10 TB ported for Holley Dominator throttle blades and other upgrades, intake ported to match, custom air box, balanced injectors, over ratio roller rockers, performance valve springs, headers and exhaust, performance tuned computer. Any 1/2/3 would have given minimal to moderate gains for the buck. Spend the bucks for it designed to work together. Excellent torque gains, decent top end gains with 1000 more pulling RPM and ~ 3 more MPG. Substantial gains that pay for themself in time. A Win Win…..edit— designed by a performance tuner and the parts shipped to me from Dodge Magnum Performance— now Fast Hemis I believe, but not sure.

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