Critique my head porting

[viperlp01]

Its your phone. Both of them are public.

 

[jmartinez1228]

Are they locked or is it my phone? Both said sorry this video cannot be played.

Some youtube videos don't work on smart phones. I have a droid x2 and I downloaded an app called Tubemate www.tubemate.net
You can rip videos right from youtube to your phone for viewing at any time.

 

[BogusSVO]

Great vids Viper!

I guess I am getting old, and just do not want to hold that heavy 3lb+ ele. die grinder.

So I am a bit spoiled..

http://www.dsmtuners.com/forums/newbie-forum/341028-4g63t-head-oil-port-mod.html

 

[viperlp01]

You know I thought it would be a pain to hold it. When I ported at SIM I had a mac air grinder but it was loud and as the compressor kicked on and off it would change speeds. This thing is easy to control.

Thanks man and I like the table!

 

[turbo23]

Nice table Bogus! I used to use a lighter eletric grinder that wasnt variable speed, actually put a dimmer switch inline with it to slow the speed down but then it wouldn't have enough power. The one I have now has variable speed and maintains its power at the lower speeds. I can move material fast! I bet it cut my time in half on those 2.3 heads..

 

[BogusSVO]

I had that built about 15 years ago. Makes porting so much easier. Just a quick welded frame with a 4 tube floresent light mounted upside down.

Air is not an issue, 160 gallon tank , only time the air runs out is glass beading.

Look at Foredom flex shaft set up, not cheap but great to use, that was what I first used when porting. a 3oz hand piece to hold.


Turbo23... you can never get a cribide bit that is to aggressive to grind on the 2.3 head!
Those are the reason I moved from ele. to air

 

[casperfast]

while fumbling through my bookmarks tab i found this awesome article that "in a nutshell" descibes almost everyones good points regaurding air flow through ports. i personally picture an aircraft wing. the front is smoth and rounded allowing soft turbulent free flow of air over (or under to create lift from the concave shape) the wing. now take that shape of the wing and make it resemble :this (III> then you have smoth over the front (intake) for minimal turbulence that slows the air, and fast over the rear (exhaust) in our case reduces spool time

heres that article Cylinder Head Porting Basics - Popular Hot Rodding Magazine

 

[ncdirtrider249]

Those videos were very helpful! Haha I wish I had the same tools you guys had. I'll post a picture of what I'm working with tomorrow. It's great for two valve Harley Davidson heads that don't need as much attention as these, but I'm making it work

 

[viperlp01]

Some more videos before I head to work

[ame=http://www.youtube.com/watch?v=61oTj_M4wXc]DSCF0653 - YouTube[/ame]

[ame=http://www.youtube.com/watch?v=9kSIuVraDJE]DSCF0654 - YouTube[/ame]

[ame=http://www.youtube.com/watch?v=e3Yvby7UPk0]DSCF0655 - YouTube[/ame]

 

[BogusSVO]

Thanks for the vids Viper & Turbo 23!!

Vid 1 Thats it show off about $300 worth of carbide burrs!

Vid 2 Yeah make it seem it does not take long with the sancpaper rolls
They will not share but I will, exhaust flow needs to be a min of 60% of intake flow.

Vid 3 Can't show the short turn work? or.. will not?

Turbo23, the 4g exhaust may not need alot of work on the exhaust side, But the 2.3 Ford... well we both know that is a diffrent story!

 

[viperlp01]

Thanks for the vids Viper & Turbo 23!!

Vid 1 Thats it show off about $300 worth of carbide burrs!

Vid 2 Yeah make it seem it does not take long with the sancpaper rolls
They will not share but I will, exhaust flow needs to be a min of 60% of intake flow.

Vid 3 Can't show the short turn work? or.. will not?

Turbo23, the 4g exhaust may not need alot of work on the exhaust side, But the 2.3 Ford... well we both know that is a diffrent story!

Its very rare Dale, that any legit cylinder head shop even shows this much or even talks about it on the internet. We figured we would show how the frosting looks for the cake but the ingredients we will keep to ourselves.

 

[turbo23]

Bogus- Those 2.3 heads are the reason I bought my first mp3 player.. 4g stuff is easy in comparision!

 

[BogusSVO]

Its very rare Dale, that any legit cylinder head shop even shows this much or even talks about it on the internet. We figured we would show how the frosting looks for the cake but the ingredients we will keep to ourselves.

Oh I know and agree, it is seldom anything done in a machine shop is shown or spoken of, even less so with port work.

People are lucky if base flow info is posted on a non modified head, let alone the after numbers.

I have said this over and over, Not all machine shops have the same equipment, knowlage or skill.

It is hard or next to impossiable, for a new guy who wants to do his first engine build to know what to look for and ask when he walks through the door of the shop.

Hence all the "sub par" machining that gets done, and why alot of DIY engine builds fail.

I would say surface finish is the big thing with me, I have just seen so much fail with that both localy and on the net.

ANY halfway dencent machine shop should have at a min a segment stone surfacer, or a multi speed rotory broach.

Not a damn belt surfacer.
/ surfacing rant

Now back to the porting discussion!

Bogus- Those 2.3 heads are the reason I bought my first mp3 player.. 4g stuff is easy in comparision!

Yeah you are right on that point, I would bet you can do 3 stage 3 ports on a 4g faster than you can do a stage one on a 2.3!!

 

[Blindsey]

Oh I know and agree, it is seldom anything done in a machine shop is shown or spoken of, even less so with port work.

People are lucky if base flow info is posted on a non modified head, let alone the after numbers.

I have said this over and over, Not all machine shops have the same equipment, knowlage or skill.

It is hard or next to impossiable, for a new guy who wants to do his first engine build to know what to look for and ask when he walks through the door of the shop.

Hence all the "sub par" machining that gets done, and why alot of DIY engine builds fail.

I would say surface finish is the big thing with me, I have just seen so much fail with that both localy and on the net.

ANY halfway dencent machine shop should have at a min a segment stone surfacer, or a multi speed rotory broach.

Not a damn belt surfacer.
/ surfacing rant

Now back to the porting discussion!



Yeah you are right on that point, I would bet you can do 3 stage 3 ports on a 4g faster than you can do a stage one on a 2.3!!

VERY INFORMATIVE! I'm always overwhelmed going to machine shops. Have you thought about making a thread "What to look for in a machine shop" or something similar?

Awesome thread. Subscribed.

 

[BogusSVO]

VERY INFORMATIVE! I'm always overwhelmed going to machine shops. Have you thought about making a thread "What to look for in a machine shop" or something similar?

Awesome thread. Subscribed.

Click the link in my sig.
Down there VVVV

 

[jmartinez1228]

I have said this over and over, Not all machine shops have the same equipment, knowlage or skill.

It is hard or next to impossiable, for a new guy who wants to do his first engine build to know what to look for and ask when he walks through the door of the shop.



Yeah you are right on that point, I would bet you can do 3 stage 3 ports on a 4g faster than you can do a stage one on a 2.3!!

You are so right on that. I had a "friend" who worked at a machine shop rebuild my motor. I figured since I knew him the motor would be done right. First hr after my motor started up all I could hear is knocking and oil leaking from different places. Had to bring it back to them for repair. Who knows if they even fixed it. Almost makes me want to rip it out and send it to you so you can go over it. Don't even want to bother dealing with them again ever.

 

[ncdirtrider249]

So I got a little more of a chance to tool around with my head today (giggity). But for real, I cleaned things up a little bit more, and got more sanding bits. Here's where I stopped for today, and here's a picture of the tools I'm working with. I also cut up my new 2gb front bumper today

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[ncdirtrider249]

Well, being that I'm on break from class. I got to go home. My Dad has a lot of dremel bits...sanding and cutting. So, needless to say, I'm on the verge of wrapping this puppy up! Here's some pictures of how it sits now, still got a couple more run throughs of the sanding bits and what not, then a final clean up!

Intake side:

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Exhaust:

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Please note: I have not gone through and cleaned up the exhaust side. So far, I just shaped the port where the valve guides are, and took some scotch brite pads through it.

 

[Shadow21]

This is the start of my 2g head.

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Here is some port work that i did on my galant head. Before i did the port work and did the 60 mm throttle body on it i ran a 12.62 in the 1/8 mile (car was N/A then). After this port work i ran a 10.34 I have no records nor any need to prove this. However, im not trying to start any crap, just posting my results.

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[9D9X]

Hey viperlp01,

That was some good info on those exhaust porting videos. Do you have any yet for the intake side? Thanks