patriot vs. afr heads
04-03-2009, 05:59 PM
#21
It is like comparing a donkey to a horse. AFRs are pure thoroughbreds. It is not only a matter of power, but efficiency, throttle response, torque, and quality. AFR 205s are one of the best aftermarket grinds to date for street use.
What are your goals and list of mods, cam etc...
What are your goals and list of mods, cam etc...
@ donkey vs. horse comment... 
04-03-2009, 06:52 PM
#22
I hot my 220cc As-Cast TFS heads from Vengeance milled to 60cc's with the upgraded springs (good for .650 lift for 1700.00 can't beat them!!
TFS heads have their own CAST and have a different valve angle (13*).
I made 457hp @ 6400 and 406ft lbs at 4300 and stayed flat til the end of the run on a Mustang Dyno, with the heads and a VRX5 cam and mods in my SIG.
TFS gets my vote!
Just my .02 cents though.
https://ls1tech.com/forums/dynamomet...rx5-combo.html
http://www.vengeancerd.com/cart/prod...FSASCAST&cat=9
TFS heads have their own CAST and have a different valve angle (13*).
I made 457hp @ 6400 and 406ft lbs at 4300 and stayed flat til the end of the run on a Mustang Dyno, with the heads and a VRX5 cam and mods in my SIG.
TFS gets my vote!
Just my .02 cents though.
https://ls1tech.com/forums/dynamomet...rx5-combo.html
http://www.vengeancerd.com/cart/prod...FSASCAST&cat=9
04-03-2009, 07:15 PM
#23
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Bang for the buck i.e. $ per horsepower, Patriot is hard to beat, but when you've done everything else and you're looking for that last 20 horsepower, you might wish you had spent the extra money. You could always try buying a clean set of used Patriots and try them out. If you don't get where you want with them, you can sell them for a small loss if any and step up to the TFS or AFR's
This is likely the most sensible and realistic reply to this repetitive question. I run Patriots and really like them and have had zero problems, however, that point of "should I have gone AFR at the start?" is approaching. I can still sell the Patriots and they have, and still are, serving me well.
04-03-2009, 07:20 PM
#24
Well here is my thoughts. Bang for the buck, patriots have done me very very well. I bought the stage 1 stock valves, milled to 60cc. I have stock GM MLS gaskets, and a torquer II cam, not huge by any means. I went to the track the other day, raceweight of about 3300 lbs. I ran 11.13 @124.6 1.62 60' on a soft 5k launch (yes 6speed car, usually 6500rpm and I Have 60'd 1.54) Then I blew the rear.
With that being said, my heads were like $1100, and the whole cam and everything else for it came to a total of 900. For 2 grand Im running pretty good IM0.
FWIW, I went 11.36 through the same setup, but with an ls6 intake, I now have a fast 92.
I also dont have the best headers, nor an electric waterpump, and im going through a small SLP lid, the car has 10's in it easily, N/A On a budget head. It also made 418 RWHP 381 RWTQ on a mustang dyno through the ls6, pre fast 92...
With that being said, my heads were like $1100, and the whole cam and everything else for it came to a total of 900. For 2 grand Im running pretty good IM0.
FWIW, I went 11.36 through the same setup, but with an ls6 intake, I now have a fast 92.
I also dont have the best headers, nor an electric waterpump, and im going through a small SLP lid, the car has 10's in it easily, N/A On a budget head. It also made 418 RWHP 381 RWTQ on a mustang dyno through the ls6, pre fast 92...
04-03-2009, 08:43 PM
#25
Well here is my thoughts. Bang for the buck, patriots have done me very very well. I bought the stage 1 stock valves, milled to 60cc. I have stock GM MLS gaskets, and a torquer II cam, not huge by any means. I went to the track the other day, raceweight of about 3300 lbs. I ran 11.13 @124.6 1.62 60' on a soft 5k launch (yes 6speed car, usually 6500rpm and I Have 60'd 1.54) Then I blew the rear.
With that being said, my heads were like $1100, and the whole cam and everything else for it came to a total of 900. For 2 grand Im running pretty good IM0.
FWIW, I went 11.36 through the same setup, but with an ls6 intake, I now have a fast 92.
I also dont have the best headers, nor an electric waterpump, and im going through a small SLP lid, the car has 10's in it easily, N/A On a budget head. It also made 418 RWHP 381 RWTQ on a mustang dyno through the ls6, pre fast 92...
With that being said, my heads were like $1100, and the whole cam and everything else for it came to a total of 900. For 2 grand Im running pretty good IM0.
FWIW, I went 11.36 through the same setup, but with an ls6 intake, I now have a fast 92.
I also dont have the best headers, nor an electric waterpump, and im going through a small SLP lid, the car has 10's in it easily, N/A On a budget head. It also made 418 RWHP 381 RWTQ on a mustang dyno through the ls6, pre fast 92...
. 
