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Author Topic:   porting
posted July 09, 2003 08:03 AM
Hello everyone! My heads came in the other day and have been checked for cracks and all is well. Getting ready to have the bigger stud holes drilled to accomodate my roller rockers. My question is, and forgive me, I'd research it, but I'm running out of time so I'm coming to you all, is porting the heads merely a performance enhancer? If so, can I get by without doing it until after the season? If I have it done, it'll more than likely be another extra week to get out on the track, and want to minimize this time if at all possible. I know it allows the heads to breathe more freely and all that, but for a first timer on the track, is it necessary, or is there something that tells me I HAVE to do it. Thanks for your help, I greatly appreciate it.

posted July 09, 2003 09:02 AM
All porting your heads is gonna do is give you a little more HP if you dont think you need the extra power being a first timer save your time and money and go racing....Towman

posted July 09, 2003 09:31 AM
Cool. Thanks for the info. That's what I was hoping to hear. My engine guy said we should do it now. Not the machine shop, just a guy that works on them. A friend, I wouldn't pay anything to have it done, just time not being able to race.

posted July 09, 2003 11:03 AM
If the cars in front of you are getting smaller down the straight you should get it done!

posted July 09, 2003 03:11 PM
Ok, I understand the basic concept, but how will it increase HP, how much, and it's a 3/8 mile track and a 1/3 mile track. Can someone explain the basic concept of this to me then. Be nice, I'm a newbie in this area. Thanks.

posted July 09, 2003 04:02 PM
it increases HP by either enlarging the ports and allowing more air to enter the cylinders or improving the quality of the airflow through the ports thus filling the cylinder better or usually a combination of the 2. Its hard to tell how much it will increase, depends on what is done, who does it, the rest of the engine combo etc. If you are using stock heads i would say without a doubt you will see an improvement at high rpm. aftermarket heads are designed better to start with so you may not see as much increase. All depends on what you want to do and how long you want to wait. Nothing says you have to do it and if you have never raced you wont know the differnce now, and you can do it over the next rebuild.

Just my opinion

posted July 09, 2003 09:28 PM
One thing that dirtbuster touched on , and I'd like to stress "who does it" . Be aware of the person you have doing your port work ! There are many self proclaimed "head porters" out there , and a majority of them really don't know what they are doing . You can take your stock heads and have them done by Joe Blo down the road , and really mess them up to the point where they flowed better in stock form , I've seen this many times . I would advise you to speak with your engine builder and take his advise on who should grind on them . Be sure that whoever does them has or has access to a flow bench . Without a flow bench , the "head porter" is basically pi$$in in the wind unless they have done port work for years and know what they are doing . Hope this advise helps you out !


Hendren Racing Engines
Rutherfordton , NC

[This message has been edited by sdhnc29 (edited July 09, 2003).]

jhon hollomon
posted July 10, 2003 12:22 AM
I'm saying it's about time to see that 22m car out on the track!!!! I would wait if I was you. Your just going out to have fun and learn for now. Having a little less power now will probably make learning how to drive it easier anyways and the way LA likes to dry out you may be better off anyways. When your getting things ready for next year and you have more time on your hands it would be a good thing to do. I've heard Morton's in Kansas City is good with ford stuff.

posted July 10, 2003 08:39 AM
Hey John! I totally agree. It's about time to get on the track, now that the season is nearly over. lol.....this ***** ! I was going to email you a chat I had with Gene about it all. Finally caught him online yesterday and tried to get some answers from him. He wants to get on the car next week. Anyway, I'll chat with you about it today I'm sure. I'll be online most of the day.

thanks everyone for their comments. I was pretty sure which way I wanted it to go, but the extra verification helps!


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