AFR 210CC LT4 Comp Port Heads(pt#1101)
06-06-2004, 11:35 AM
#1
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Location: San Antonio, TX
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AFR 210CC LT4 Comp Port Heads(pt#1101)
Any of you guys use these heads out of the box on your blower car? This seems to be an ideal choice for me on my 383/PTK T76GTS build. Any suggestions? Will these heads help me in my quest for 950-1,050 fwhp?
06-06-2004, 11:38 PM
#2
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Location: Baton Rouge, LA, USA
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I'm using AFR 210's Race Ready (out the box) and have run 10.40 at 133 mph at 3700 lb with the combo in the sig. The Comp heads flow about the same low and mid-lift, with about 15 more cfm at high lift.
I'd probably get the 220's if I started over.
Also, if you want .570"+ lift, you'll have to change springs and probably retainers.
Mike
I'd probably get the 220's if I started over.
Also, if you want .570"+ lift, you'll have to change springs and probably retainers.
Mike
06-07-2004, 03:16 PM
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lol. I guess you hear that too often?? 220cc Comp Port heads it is..........unless you think the RR's are plenty for my application?? Are the Comps worth the extra six hundred or so dollars in your opinion?
06-07-2004, 05:51 PM
#6
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The Comp's do flow more than RR's, as tested on Thunder Racing's flowbench.
Comp 220's have flowed (flown, flew???) 300 actual cfm there, which is very impressive. Ignore what most people say. 300+ actual cfm is EXTREMELY rare in a 23 degree head.
Many companies advertise a 315 cfm LS1 head that actually flows closer to 280 on Thunder's flowbench.
As for the Comps being worth it over RR, it depends on who you ask. The Comp's definitely flow better, but some head porters claim that AFR concentrates on big flow numbers without paying attention to velocity, swirl, turbulance, or low-lift.
It's your call.
Mike
Comp 220's have flowed (flown, flew???) 300 actual cfm there, which is very impressive. Ignore what most people say. 300+ actual cfm is EXTREMELY rare in a 23 degree head.
Many companies advertise a 315 cfm LS1 head that actually flows closer to 280 on Thunder's flowbench.
As for the Comps being worth it over RR, it depends on who you ask. The Comp's definitely flow better, but some head porters claim that AFR concentrates on big flow numbers without paying attention to velocity, swirl, turbulance, or low-lift.
It's your call.
Mike
06-07-2004, 05:58 PM
#8
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Join Date: Oct 2001
Location: overland park, ks usa
Posts: 144
Originally posted by engineermike
The Comp's do flow more than RR's, as tested on Thunder Racing's flowbench.
Comp 220's have flowed (flown, flew???) 300 actual cfm there, which is very impressive. Ignore what most people say. 300+ actual cfm is EXTREMELY rare in a 23 degree head.
Many companies advertise a 315 cfm LS1 head that actually flows closer to 280 on Thunder's flowbench.
As for the Comps being worth it over RR, it depends on who you ask. The Comp's definitely flow better, but some head porters claim that AFR concentrates on big flow numbers without paying attention to velocity, swirl, turbulance, or low-lift.
It's your call.
Mike
The Comp's do flow more than RR's, as tested on Thunder Racing's flowbench.
Comp 220's have flowed (flown, flew???) 300 actual cfm there, which is very impressive. Ignore what most people say. 300+ actual cfm is EXTREMELY rare in a 23 degree head.
Many companies advertise a 315 cfm LS1 head that actually flows closer to 280 on Thunder's flowbench.
As for the Comps being worth it over RR, it depends on who you ask. The Comp's definitely flow better, but some head porters claim that AFR concentrates on big flow numbers without paying attention to velocity, swirl, turbulance, or low-lift.
It's your call.
Mike
06-07-2004, 07:34 PM
#9
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"Comp 220's have flowed (flown, flew???)" ----> LMAO! You got me questioning my grammar now. lol.
"if I were to do it again, I'd go with the 227 head. Throttle response and bottom end torque isn't a problem w/the 220s."
Doh!! Another option!
Does that mean that with 227's it IS a problem??
I don't want to do this twice, I've been through that for the last 3 years. lol. They cost the same but would it really benefit a T76 build when taking streetability into account? Not that the car will be driven on the street that much anymore............... It seems that the 227's flow pretty bad.a.ss, but is that absolutely necessary in a turbo car??
"if I were to do it again, I'd go with the 227 head. Throttle response and bottom end torque isn't a problem w/the 220s."
Doh!! Another option!
Does that mean that with 227's it IS a problem??
I don't want to do this twice, I've been through that for the last 3 years. lol. They cost the same but would it really benefit a T76 build when taking streetability into account? Not that the car will be driven on the street that much anymore............... It seems that the 227's flow pretty bad.a.ss, but is that absolutely necessary in a turbo car??
06-07-2004, 07:41 PM
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Location: Baton Rouge, LA, USA
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My point about the LS1 heads is that the ones claimed to flow 315 only flow a true 280. Most head flow claims are exagerated. I think LS1's are 15 degree.
As for the 227's, I understood that AFR moved the valves around to fit the larger 2.100" intake valve. I was one of the guys that bought the early TFS twisted wedge heads with the valves moved around. I had nightmares trying to set up the valvetrain only to find myself with a complete set of bad valveguides/seats 2 years later. I'm leary of anything that moves the location of the valves.
Mike
As for the 227's, I understood that AFR moved the valves around to fit the larger 2.100" intake valve. I was one of the guys that bought the early TFS twisted wedge heads with the valves moved around. I had nightmares trying to set up the valvetrain only to find myself with a complete set of bad valveguides/seats 2 years later. I'm leary of anything that moves the location of the valves.
Mike
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