Intake Q

[99SHOtime]

Which allows more air to the engine?

A) Removing the saxacone from the stock intake

B) Buying a cold air intake cone

 

[zach44102]

a) a cone only helps when put into the fender. otherwise a cone inplace of the airbox is a downgrade. but im the one to talk i have a cone intake system

 

[frosho]

Zach, are you aware this is the V8 section? :wave:

 

[zach44102]

oops.. sorry but i think it would still have the same effect. i had a gen3 once but it had cam failure. got the broken cam welded but too scared to crank because the timing is off.

 

[zblackbeast]

Hes talking about the cones inside the intake.. correct?

Also, unless you can get one that draws from the fender like Zach stated, a drop in K&N filter should be more than enough for a stock motor. On a V8 you can disconnect the secondaries and take out those velocity stacks.

 

[SuperHO]

technically, the sax IS a cold air intake...damn shame it's the size of a vienna sausage. yank off the restrictive portion of the saxocone and call it happy. oh yeah...yank your secondaries while you're at it.

 

[99SHOtime]

Thank you for the feed back.

Yeah im talking about the restrictor inside the stock intake and just a regular k&n cone.

Btw..secondaries are gutted.

 

[dranniK]

technically, the sax IS a cold air intake...damn shame it's the size of a vienna sausage. yank off the restrictive portion of the saxocone and call it happy. oh yeah...yank your secondaries while you're at it.

Sorry.. I have a feeling this might be a dumb question but I really don't know the answer, but whats the point in pulling the secondaries?

 

[Izzmo]

Sorry.. I have a feeling this might be a dumb question but I really don't know the answer, but whats the point in pulling the secondaries?

I don't know if we have all come to a consensus or not on this as a whole group, but if you ask me it's not a problem with the secondaries themselves but the problems caused by having it.

Most people see a failure in the IMRC motor (which opens and closes the secondary butterflies inside the lower intake manifold (LIM)) because of carbon buildup on the secondary plates which does not allow them to open and thus either burning out the motor or splicing the cable. So, instead of replacing/repairing the IMRC, they just either wire open the secondaries or gut them completely.

I have personally gutted mine and it allows for a little better sound because more air is getting into the cylinders at any time below 3400 RPM's which I believe allows for a better take off (to a degree). To take any effects of removing the secondaries, you must have a tune though.

 

[dranniK]

Much appreciated! I was always curious but hesitant to look dumb and ask.

 

[Izzmo]

Much appreciated! I was always curious but hesitant to look dumb and ask.

Don't forget to use the search bar above. It helps a lot when wanting to know answers.

 

[SuperHO]

mine's not tuned, and it's been pullin just fine without secondaries for over a year now. the thing is, the secondaries on the V6 intake open a completely different set of runners. on a V8, they pretty much block off one intake valve for whatever stupid reason. basically, the V8 SHO is a 3 valve engine until 3400rpm, and gutting the secondaries solves that problem.

 

[Ian Macoomb]

mine's not tuned, and it's been pullin just fine without secondaries for over a year now. the thing is, the secondaries on the V6 intake open a completely different set of runners. on a V8, they pretty much block off one intake valve for whatever stupid reason. basically, the V8 SHO is a 3 valve engine until 3400rpm, and gutting the secondaries solves that problem.

But nobody has proven this on a drag strip. Bring me 14 second slips and I believe that the secondaries aren't useful.

 

[stephen newberg]

Much appreciated! I was always curious but hesitant to look dumb and ask.

Remember when you were told as a kid in grade school there was no such thing as a dumb question? They were right. Ask away and never worry about it, though as noted by another poster, sometimes a search will get you an answer more quickly.

pax, smn

 

[Izzmo]

I don't want to get this into another secondary thread (we haven't had one in a while though), considering this isn't even what the topic is about.. but I don't believe Ford is that stupid to make secondaries not useful at all. When talking about this kind of stuff, you have to keep in mind the actual intentions of the engineers. They didn't have performance in mind (at least for the most part), but instead had economy with the ability for that extra kick if needed, which is where the secondaries came in.

I have heard from multiple people, and it only makes sense, that gutting/wiring open the secondaries won't help you performance wise without a tune simply because your tables need to be recalibrated for the extra air in the system before 3400 RPM. Correct me if I am wrong though.

 

[SuperHO]

while you may not get FULL benefits without a tune, our ECUs are adaptive and capable of adjusting for the addition of more air into the engine.

 

[SHOZ123]

while you may not get FULL benefits without a tune, our ECUs are adaptive and capable of adjusting for the addition of more air into the engine.

In closed loop.

 

[shooff82]

I thought the biggest reasons for the secondaries is fuel economy and to keep the port velocity up to help with low end torque. Especially since we're talking about small displacement, normally aspirated engines. I also thought that was the point of the velocity stacks in the surge tanks and the difference in runner lengths.

 

[SHOZ123]

You don't want to take out the internal horns as they do extend the external runners to a uniform length.

On the V8 there is a small advantage to keeping the secondary plates for economy or driveability. Keeping it working correctly can be a pain though and is why I took mine out.

 

[shooff82]

I thought the biggest reasons for the secondaries is fuel economy and to keep the port velocity up to help with low end torque. Especially since we're talking about small displacement, normally aspirated engines. I also thought that was the point of the velocity stacks in the surge tanks and the difference in runner lengths.