OK....I tried to stay away but I feel compelled to share some opinion as well as some recent pic's of our product. I’m going to TRY to be as objective as possible with my reply but I'm obviously proud to be affiliated with this company as well as proud of the product we produce.
IMO, the biggest problems with threads like this is the hidden agenda's behind certain posters comments. Maybe someone is a fan of Brand Y.....it really doesn't matter if Brand X is any better....there going to tell you to purchase brand Y.
Maybe a rep of Brand X pissed off someone years back by not sending them a free part they thought they deserved or gave them a big enough discount....guess what....he's going to promote Brand Y as well....or maybe Brand Z.....but it certainly won’t be Brand X.
Also, let’s be frank....there are alot of economics involved behind some posters recommendations as well. Is it in their best interest to promote an affordable very capable cylinder head that doesn't need additional porting to produce much better than average results?? Always consider the source...
We are constantly working to bring you guys the best mass produced (reasonably affordable) out of the box cylinder head that will be effective in 95 out of a 100 combinations. We also strive to bring you guys the most
efficient out of the box heads as well with more flow per given cross section or port volume. I think most agree that’s a winning formula for good acceleration (a port that flows alot of air thru a small hole has a high airspeed, more inertia for better cylinder fill, and usually makes good power and accelerates harder than a larger less efficient port).
We are also always looking for ways to improve our product and never sit on our laurels. Since the release of the clean sheet design Eliminators a year or two ago we have slowly gone thru and tweaked certain programs in an attempt to offer you an even finer product that's more consistent and sometimes outflows stated numbers in our catalog and website (which we usually only visit once a year when its time to produce a new catalog). It's not that there was anything wrong with the Eliminators we have shipped in the past, we have just refined the process even further to retain an even more competitive edge. Most people that run the heads love the heads but its a big world out there and there are certainly other quality options to consider. I just want to inform you guys as much as I can about our product so at the very least its a solid consideration for all the right reasons.
We also know there are alot of variables in flowtesting and the types of equipment used, so the more we can potentially exceed the numbers on our own test equipment the better the stuff will look out in the field on your test equipment. More on that later....
I decided to snap a few pics of a production 210 right off the shop floor today with our latest tool path (only finalized a couple of weeks ago) and a few other bells and whistles we have picked up and implemented in the program.
Don’t forget guys....this is a mass produced $2100 pair of heads (not a $4k one off piece) and while that's obviously a few bucks, these heads are worth every penny and represent a bargain IMO considering the port design, chamber design, CNC execution, and all the trick hardware that comes standard equipment as well (aftermarket castings with a 3/4 deck, premium lightweight 8mm beadlock valves, lightweight springs and retainers, etc.)
CHAMBER / BOWL PICS
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NOTE THE TRANSITIONS BELOW into and out of the valvejob/chamber (very difficult to mass produce a part thats this accurate)
LOOKING DOWN THE INTAKE PORT
EXHAUST PORT OUTLET
EXHAUST PORT SHORT SIDE RADIUS
NOTE THE TIME invested in the valve shape/profile. Back cut intake with specific width angles....tulip exhaust valve with a radiused leading edge....all standard equipment. Also note the more desirable beadlock keeper grooves as well.
I mentioned touching on flow numbers....we are a stand up honest company and we stand behind every part we manufacture and produce....
including the flow numbers that we advertise. Of course there are always production tolerances that can stack up in any mass produced mechanical part (tool life, CNC equipment tolerances, etc.) so we must also be realistic and take that into account as well. The bottom line is based on a properly calibrated SF600, we guarantee our numbers within 2% (there has to some reasonable amount of room for machine tolerances). This of course is based on the proper fixture bore, a properly shaped radiused intake entry (not clay), and a short curved pipe to simulate a header on the exhaust (curves immediately off the exhaust flange just like a typical header and straightens out for about 4" before terminating).
If you own a 1020 bench your numbers will likely be a little lower (especially the older 1020's)....as a rule they are generally a bit more stingy than a 600. Most of you guys know what’s strong and what’s not strong on your particular equipment, but if you have a bench that consistently reads similar to a 600 SuperFlow (or perhaps is a 600 SuperFlow) and you are getting numbers alot lower than the few percent I mentioned we want to hear about it. A PM or phone call to myself personally would be appreciated and we can discuss exactly what your experiencing. If I feel you have everything covered I will likely have you send the heads back on our dime for us to evaluate. We have never artificially inflated flow numbers and never will. We sell ALOT of our product direct to engine builders and they expect us to deliver as promised and we know that and try our best not to disappoint. AFR has a tremendous amount integrity and good ethics and customer service is also number one.
Guys....if ANY of you ever have an issue with our product....please try and get hold of me so we can discuss it. To those in this thread who have had issues with the flow numbers of our product I especially urge you to contact me. One of the main reasons I visit the various boards is to give support to our product.
Also one last thing worth mentioning.....if a head is ported that starts out at 210 cc's and ends up closer to 230 cc's it certainly shouldn't be compared to other heads that are still close to 210 cc's....it should be compared to other heads closer to the same
finished ported volume to be a more fair comparison.
Its late and I’ve probably overstayed my welcome....just had a lot to share and alot to say....hope some of the info here is helpful
Regards
Tony Mamo
AFR R&D / Product Design Mgr
(661)705-8508
PS....Finished this at 1 AM in the morning but my cable modem is down. Looks like I will have to try re-posting it in the AM.
PSS....To those guys familiar and unfamiliar with our product that may be attending PRI, I would like to encourage all of you to stop by and see some of the latest improvements we have implemented in all our product line as well as some of the new stuff we are about to launch. I think you will leave with a better feel of our company and the people involved by spending a little time at our booth.
