T/A#4, I have no idea what the flag was thrown for? He is asking a question not stating he jumped 92 semi trucks with his car.

Guys, while it may have been cool for some of you in grade school to jump on the band wagon when somebody started flaming or degrading another somebody, it is NOT cool here so please don't do it. Thanks.

 

the guy asked a question which is what this forum is about! if i had thought about that also i would have asked myself. it goes along the same lines as porting the intake manifold withit still on the car.....
but like some of the others have said i dont think i would actually try doing it, the potential for debris in the chamber is higher then the possible achieved power gains IMO, which i think you understand now

Steve

 

Actually... take a look here... LOL!

http://www.bfranker.badz28.com/96ss/58porting.htm

There is a little story there about me getting some aluminum shavings in my engine. While it seems horrifying, it is not as bad as one would think and the car is still running strong years later

 

i've read that before Brent, and IMO its "case sensitive"
its probably easier to do for most people but something i personally wouldnt try
i take chances on some things but when it comes to rebuilding a short block or whatever might get damaged.....i shy away from that, my pocket just isnt that deep
but i'm glad you got lucky

 

SELF POLICING EDIT: (grumbling, insulting removed) This forum works best (IMO)when people can freely ask questions without fear of being flamed. (More insulting removed).

That being said, there have been several threads about exhaust porting. One of the conclusions appeared to be that you want the primaries on your headers to be a little bigger than the actual opening on the head. The pressure drop is beneficial (TQ, HP or maybe both, I do not recall). As such porting your exhaust openings may hurt performance.

Thread I could find

As for shavings in you engine: unless your goging to get pile of them in there, you won't likely hurt anything. Try not to get them in there, but if a few flakes make it in it's no BFD. Aluminum filings (dust, thin scrapings not chunks) will probably be incinerated in the chamber and/or blown out. I'd take the heads off if it was my car. If a problem DID occur, it might be very costly. Risk vs. Benefit (I'm a weenie).

 

I did this with my heads off, but the valve job was already done, so kind of the same. I found it good to put some kind of thick grease/oil (something that will stay) in the runner and it will catch the shavings. When you are done, just wipe out the thin layer real good, and if you are really worried, you can clean it with some mineral spirits or something like that, and let it dry. Also, it might be easier and safer to just back off all the exhaust rockers to close the valves and just do it that way. Then you know they are all closed.

 

Yea.. I was just wondering if it was possible.. I didnt need responses like i recieved... I just figured it would be a dust type stuff and if the exhuast valves were closed i could sick a vacume in there and get it all out.. Of maybe load the ports with paper towels soaked in oil and then port them and pull the paper towels out.. I dont think its worth the 3 or 4 HP honestly.. Im just leaving it alone... Brent feel free to delete this post..

 

Good luck with the header install. I just got done with mine, and DANG! It sounds awesome with the Carsound cat and Hooker Catback. I haven't got it on the road yet. Tomorrow I will.

Hope the install goes smooth.

Dan

 

Thanks

 

You can ask but you won't get an answer He's been suspended due to his repeated disrespect towards other members and his lack to follow my advice to stop this behavior.

 

Hey brent.. How do you get those Vinyl things to stick soo good? I ordered the steering wheel things from you and they keep coming off.. Also my brake caliper ones wont stay on.. i didint get those from you though...

 

The steering wheel ones sometimes give people trouble. If it isn't perfectly cleaned with all the Armoral out of the area, they won't stick. Since this is very hard to clean in the cracks, I've had a handful of people say they can't get them to stick. Haven't had a problem with the caliper decals though. Shoot me an email at bfranker@tampabay.rr.com and I'll get ya squared away

 

I wasn't going to respond, but knowbody gave a good reason for not undertaking this strange project. As many have said, I would not attempt this; but for two main reasons that have nothing to do with getting shavings in the engine.
#1 The results will be almost non-existant. Any port work worth having will include bowl work and work on the short side radious. All you are planning to do is gasket matching with is basically worthless unless you have a race engine and are looking for that last bit of power.
#2 Having the header inlet slightly larger than the exhaust port is actually good. It helps to reduce exhaust gas reversion. This is when exhaust gasses are actually sucked back into the engine during vavle overlap. The smaller exhaust port sorta acts like a check valve of sorts. Several header manufacturers build stepped headers for this very purpose.

DON'T WASTE YOU TIME! It won't make a difference.

That said, while I don't want to jump on the band wagon, you had to know you were gonna get flammed just by the name of the tread. I laughed my *** of when I saw it. It's ashamed it got out of hand, But you had ot know it was comming.

 

Actually, when I read the actual topic it sounded more to me like just making it so there wouldn't be a drastic step change to the header... just basically that he was trying to port match... not do a full blown port job

Call me crazy but I didn't think the question was terribly out there to deserve some of the responses. If you screw up the threads in a plug hole, most will try to repair the threads with the head on the car. That involves working with tools and such up in there too. While what he was wanting to do would be a bit more complicated and time consuming, I don't see it as being THAT much different than this example

 

We get questions alot worse than that on a daily basis... I didn't think it was that bad anyhow. Besides, once he tried to do it, he'd quickly realize it wouldn't work as simply as initially thought - no big deal .

For what it's worth, even barring most of the reasons not to do it (cleanliness, breaking into water jackets, etc.), it still wouldn't b eworth it IMO b/c you'd be working a portion of the port that isn't likely the restriction anyway.

Good luck with your stuff