AFR head ?'s
07-07-2006, 09:54 AM
#1
Staging Lane
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AFR head ?'s ok im looking at the afr's for my car! but i want to kno what gains you get out of them... im not sure of witch set to get.. the 205cc or the 225cc ported!! i have a monster cam and the 90/90 on the way but i just wanted to kno if anyone knew of any numbers that these heads give you??? thanks
07-07-2006, 10:40 AM
#2
Tell us about your monster cam. What kind of duration is it? LSA and ICL? Are you planning on flycutting your pistons?
BTW, there's no need to port the AFRs. They come CNC ported from the factory and flow very well. The gains of the AFRs depends a lot on how much compression you will have. Willingness to flycut will determine how much you can mill the AFRs. Flycut and you can mill to 59cc no problem.
BTW, there's no need to port the AFRs. They come CNC ported from the factory and flow very well. The gains of the AFRs depends a lot on how much compression you will have. Willingness to flycut will determine how much you can mill the AFRs. Flycut and you can mill to 59cc no problem.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
07-07-2006, 10:57 AM
#4
On The Tree
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AFR225s only if your doing a larger displacement or power adder (turbo or S/C) - at least thats what I hear - but maybe Patrick G can clear that up - looks to me like he's got a cam that could lift the engine out of its firwalls - he he
I've got the 205s milled to 59cc and they'll give you 40rwhp just like the articles state. My combo doesn't have alot of rwhp because of about 20 - 23% drivetrain loss.
I've got the 205s milled to 59cc and they'll give you 40rwhp just like the articles state. My combo doesn't have alot of rwhp because of about 20 - 23% drivetrain loss.
07-07-2006, 03:23 PM
#5
Staging Lane
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hey thanks.... yeah somone told me to get the 60 lbs injectors for some resone... but idk wut im going to do my cam in a 236/238 duration with 600/610 lift and with a 114 lobe! i dont kno but i herd the afr's are the best heads... i want to try to get *** much power out of them as posible!!!!
07-07-2006, 03:31 PM
#6
Do you plan on flycutting? If not, you're leaving lots of power on the table since you'll probably have to keep your AFRs close to stock compression, especially if you choose the 225s with the larger 2.08 intake valve.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
07-07-2006, 04:44 PM
#7
With that cam I would look into getting a set of AFR 225s milled to 59cc to bump the compression (would he need to get Cometic head gasket or would the mill be enough?). You will have to flycut but it's worth doing since you are going to be in there anyways. Like Patrick said, not flycutting will leave lots of power on the table and you will end up going in and doing it later. I would go with the 225s because I don't think you will lose that much power on the bottom end but you will gain quite a bit more up top.
