im chaning the knock sensor this comeing week i wanted to know if i
should use my dremail and bor the (intake manifoild) ports alittle as some one did be for on the org if so would the car run the same just with alittle more power or should i for get it also what kind of bits should i use

 

I'll find my pictures.

Oh and it's called porting

 

...AND you better know what you are doing.

...AND you better have some time on your hands.

 

And to think I came in here expecting that he was gonna make a post on how the VE just isn't fun anymore.

 

...AND lots of brake cleaner/engine degreaser.

...AND Air Tools make it go alot faster and easier.

...AND http://www.digitalbeta.net/VIported.JPG (decided to do more work after that picture).

Sanding rolls make it 10X easier, I didn't really want to spend any money so I just used some sanding drums I had laying around, but that is also why I didnt mess with the "top part" that much (the drum has a tendancy to cut lines into the metal, while the rolls keep it smooth).

 

Thats funny, I was expecting a question along the lines of "how far can I punch out my VE?" hehehe

http://mrgone.homeip.net/images/veapart/7.jpg

wheeeeeeee!

 

did you also do the intake manifoild also did u you shave the gaskets. u think i just use the driemil

 

I used some small scissors to trim the gaskets abit.

 

I wouldn't recommend porting the lower intake any. I mean, if you just gasket match them, you will lose a NOTICABLE amount of low end power. I've done lots of before and after track testing and I came to the conclusion that I lost low end, but barely gained back an equal amount of top end. It's NOT WORTH IT!!! No matter how much I say this, people still won't listen. They still port their runners too much and it will hurt performance.

Here are my pics of my project:

http://www.littlebabywebs.com/maxima...ntakeport.html

What I DO recommend if porting the throttle body and matching the intake to it. That will give some decent gains in throttle response and maybe some top end. Here are those pictures:

http://www.littlebabywebs.com/maxima/tb/tbpage.htm

I highly recommend you to not do any porting to the upper or lower intake runners unless you want to lose performance and drivibility. And if you slightly mess up the porting, it WILL hurt overall performance b/c of added turbulence. Shawn, no offense, but that port work isn't smooth enough. You might be hurting top end power.

The closer you get to the heads, the more sensitive port work becomes. The slightest dip in the air flow could really cause turbulence entering the heads and you will lose HP.

 

porting has been dyno proven not to give ANY gains. But if you have lots of time to spend, then go for it

 

TB porting has been dyno proven to give great gains. Bryan H did that. He got a 7hp and 13tq increase. That's kind of optimistic I think, but it's still proven to give a gain of some sort.

But I agree that porting your intake runners won't do jack except mess up your power curve. Because I have proven that in the 1/4 mile and my dyno when compared to a stock VE dyno. Do you know who has the dyno proof about porting not giving any gains? More info please. Thanks.

 

If you remember way back when 'don in texas' was around. well he did real dyno work, and had removed over 2lbs of material. I think he gained 1ftlb of tq (or lost 1ftlb I dont remember). but thats easily well within the dynos error range.

 

2lbs of metal? Holy crap, of course he will lose power. 2 lbs is a lot of metal, maybe you meant 2 ounces. If the port job isn't done right, you will lose power. That's why a flowbench testing it would be very nice. Only real performance machine shops would have a flowbench. It will basically tell you if the port work you're doing is helping or hurting you, and by how much.

What I do know is that there have been great results from headwork on all VGs. But a VQ and VE are very similar. So I can easily believe that Don didn't gain any power from his port work.

But I agree with you Eric on intake runner port work is a WASTE OF TIME. Nobody believes me. But I've been there, done that, and it's a waste. People will still do port work just so they can say, "yeah I got some major headwork done to my car".

 

[QUOTE=Aaron92SE]2lbs of metal? Holy crap, of course he will lose power. 2 lbs is a lot of metal, maybe you meant 2 ounces. If the port job isn't done right, you will lose power. That's why a flowbench testing it would be very nice. Only real performance machine shops would have a flowbench. It will basically tell you if the port work you're doing is helping or hurting you, and by how much.

What I do know is that there have been great results from headwork on all VGs. But a VQ and VE are very similar. So I can easily believe that Don didn't gain any power from his port work.

But I agree with you Eric on intake runner port work is a WASTE OF TIME. Nobody believes me. But I've been there, done that, and it's a waste. People will still do port work just so they can say, "yeah I got some major headwork done to my car".[/QUOTE

Yeah dude, it was TWO POUNDS. Its a lot. Also with all the DIY people out there they know very little about flow dynamics, so chances are they royally ruin whats already there.

 

Yeah. That's why I REALLY don't recommend a regular DIYer porting heads or anything close to the heads. Now, I think a DIY can port his own throttle body. As long as the surface is smooth and flat, they can port as much metal as they want to. That is, without poking through the other side of the TB wall. lol

But when you start doing intake runners and heads, it's nice to know your limits and how much you can port. A flowbench and several back to back dynos is a good way to determine that.

I barely ported my stuff and I think I ported too much. But I'm still good. Atleast I didn't get slower in the 1/4 mile. I just lost low end and gained top end.

 

Don in TX did the EXHAUST manifolds, in search of power on that end.. it was two pounds of iron that he removed, not aluminum BIG difference.


and porting the intake can give good gains- but you have to know what you're doing... and there's not a single person on this forum with the experience necessary to properly do it- let alone the flow bench and other tools required.

 

From what I remember he did his intake manifold as well. I'd search, but.........

 

I'm sure Don did his intake too, but the 2lbs of metal removed was from when he did the exhaust manifolds.. he tried that before doing headers, and decided there was no use in doing headers since they wouldn't make power.. (hmmm, they seem to be providing gains now that cattman has done them!)

 

Haha, Don is stupid. lol I also agree that probably nobody on this forum knows enough or has the correct tools in order to port the intake as efficiently as I know it can be. Basically, all I did was slightly port some of the runners. There wasn't any big amounts of metal taken out, I just thought I'd do it since I was doing a KS job anyway. But if I ever got headwork done by a shop that knew what they were doing, then I would get them to take a close look at my intake also.