Intake ribs aft throttle body

[wbt]

I think a few of us have wondered why Ford put them there. I decided to take the TB off today and have a look. The ribs do not extend into the intake very far. About 1" on the bottom and 1/2" on top. The do protrude into the opening a decent amount however.

Could this be for low rpm drivability? Is it for part throttle response? Hell, who knows. I said screw it and broke out the dremmel. Started with a sanding roll and finished with a sanding stone. If you decide to do this you must be careful so you do not break through the intake. That would be a very expensive mistake.

After all said and done:

I have not had the chance to drive the car yet so I could not comment on how it feels. It may have messed it up seriously or may have no affect at all. Time will tell.

 

[lostsoul]

your first post and you might have already F'ed up your new car.. you got Balls! hahah

I wouldn't suggest beta testing anything.. let the shops and people that understand these things do it.

maybe its a factory tornado.. haha

 

[wbt]

UPDATE: Took it for a quick spin and it feels good. No way to know if there were any gains or not but I will say it sure did not hurt anything.

I have been involved with cars for some time. Porting heads, install and degree cams, etc.... In all seriousness when I looked at the ribs, they did not extend far enough into the intake to direct airflow. Ford claims it is to quiet the "woosh" noise down.

Where I come from, anything protruding into the intake will impede flow. I have no idea if it is good for any additional HP but will say removing them had no ill effects.

 

[RDK]

you should have dynoed it..
but in 1-2 hp maybe max.. probably couldnt tell 2 much

 

[wbt]

you should have dynoed it..
but in 1-2 hp maybe max.. probably couldnt tell 2 much

If I had one handy I would have. Only accurate way would have been to baseline, immediately change, and re-dyno to keep the conditions as close as possible.

 

[RDK]

correct...

I just posted in 5.0 section..

my 2008 paxton h.o custom tune vs.. ss. works shop car dyno.. pretty close

 

[NastyStang113]

I have been involved with cars for some time. Porting heads, install and degree cams, etc.... In all seriousness when I looked at the ribs, they did not extend far enough into the intake to direct airflow. Ford claims it is to quiet the "woosh" noise down.

Than you would know that there is a lot more to dynamics than just a big hole. I'm not saying that this hurt or helped anything because I don't have any idea.

 

[wbt]

Than you would know that there is a lot more to dynamics than just a big hole. I'm not saying that this hurt or helped anything because I don't have any idea.

Hence:

"I have been involved with cars for some time. Porting heads, install and degree cams, etc.... In all seriousness when I looked at the ribs, they did not extend far enough into the intake to direct airflow. Ford claims it is to quiet the "woosh" noise down."

Absolutely correct. Bigger is not better if/when you sacrifice velocity. Dead air is as bad or worse than not enough.

 

[NastyStang113]

I hope you didn't get your panties in a bunch over my comment. It wasn't intended. Who at Ford told you the purpose of the 'ribs' though? Regardless, if they are capable of quieting it down than obviously they are doing something with the air.

 

[wbt]

I hope you didn't get your panties in a bunch over my comment. It wasn't intended. Who at Ford told you the purpose of the 'ribs' though? Regardless, if they are capable of quieting it down than obviously they are doing something with the air.

Don't worry, I am not excited.

Regarding the Ford comment, you may have seen this: http://www.mustang50magazine.com/te...1_ford_mustang_gt_50_coyote_engine/index.html

If you look at the pics, they have a comment at the bottom of each one. The pic of the intake ribs will provide the same insight I received.

 

[lostsoul]

Bigger is not better if/when you sacrifice velocity.

who taught you my sex secret?!?!

....... I cant go deep but can tear up the sides

 

[JeremyH]

So while you were in there did you happen to measure the intake manifold size and compare it to the throttle body? Is it matched?

http://www.s197forum.com/forum/showthread.php?t=37257&highlight=throttle

 

[hawkeye18]

"Looking like a Moray eel with an attitude, the "whoosh fingers" in the intake manifold entry are there to quiet the whoosh you get when tipping into the throttle. Adam Christian assured us, "They cost no power, for the record. It's like a tenth. The first thing everyone will want to do is grind them off-and that's fine, I would too-but it's not going to get you anything. We tried it.""

lol THAT'S YOU

 

[wbt]

So while you were in there did you happen to measure the intake manifold size and compare it to the throttle body? Is it matched?

http://www.s197forum.com/forum/showthread.php?t=37257&highlight=throttle

Yes it is matched. I did not measure the size however.

 

[RDK]

I think in one of the other magazines the intake manifold was 3mm bigger than the throttle body 83/80mm ?

 

[RSKtakR]

ive read about those ribs in some mag here in the last couple weeks, they said that there was no power or torque gains anywhere from cuting those ribs off.

 

[hawkeye18]

ive read about those ribs in some mag here in the last couple weeks, they said that there was no power or torque gains anywhere from cuting those ribs off.

Meet:

"Looking like a Moray eel with an attitude, the "whoosh fingers" in the intake manifold entry are there to quiet the whoosh you get when tipping into the throttle. Adam Christian assured us, "They cost no power, for the record. It's like a tenth. The first thing everyone will want to do is grind them off-and that's fine, I would too-but it's not going to get you anything. We tried it."

 

[RSKtakR]

Meet:

that would be the EXACT article i read..LOL