Makenzie71

You posted a thread a while back explaining what happened when you removed you 6port sleeves, actuators, and wired your VDI open. You said, however, that certain things about that won't work with a fairly stock system because it will not breath propperly.

I intend to do this but my mods will include:

Mandrel bent tube to AFM and capped with a K&N filter with plenty of cold air being forced upon it
Headers and 2.5" tubing leading up to the "Y" section of the exhaust (too loud...neighbors complain too much if I run straight pipe)
Ported intake manifold


Would this be sufficient to prevent the engine from suffering air-starvation?


I posted this in the forum instead of PMing him to get other's opinions as well.

Bambam7

Hey... ya got me... lucky!


Wow, that post was a while ago.
But I hope you didn't misinterpret me... what I was getting at with the "breathing" was that these mods are next to useless on a stock engine. Yes, it will make a tiny bit of difference (for all you that like to argue to get your post count up) but not worth it unless you have an "uncorked" engine that makes use of full air intake/expulsion potential.

Anyways.. I don't remember what I wrote but I remember the difference.
If you have an engine that is heavily modded- it's worth it.

Basically, a heavily modded engine (street port, ehxuast, intake) will require more CFM air intake. Any restrictions become exponetially more obtrusive as air volume increases. Very minor restrictions that don't make a difference at low flow rates suddenly rear their head as the next bottleneck when you start increasing flow.
Key- Think of the engine as an air pump.

Your mods are bordering on benefitting from this. You will lose a little bit of low end power, but not too much. It's more than enough for driving around, but if you like racing, I hope you can get familliar with the gearshifter.
Think about a seperate VDI actuating system too if you want.
Also- you didn't mention about emmisions?? I'm assuming you are now without an airpump/cat? If not.. that's the first that should go.

Anyways... A better alternative to removing the aux port sleeves altogether is to slice and dice them, and mould an epoxy bowl into the end of them- increasing flow.
I actually have a few threads about this if you wanna look. (including one recently)

Makenzie71

I've read a lot of thread about moddifying the stock sleeves, but a few also contained ill results such as piecec of epoxy rolling around the rotor housing causing general mayhem and havoc...lol.

Yes, I am pulling ALL of the emisions realted equipment. So yeah, no air pump...I imagine all of that stuff will go onto my driver. This car is only to be drivin hard and prolly high up top...and I am very familiar with the gears and can't wait to be hitting them again.

I have been considering either an RPM activated or a dash mounted manuel switch to power a solinoid that will change the VDI from high to low and back. But I assume, considering what I intend to do with the car, it will always be on high.

I really appreciate the reply. Thank you very much.

Duncan

Icemark

Next time Makenzie71 PM him instead of using his name in the thread title