if i got a lower compression afr head would i be slower then with stock heads?
08-19-2005, 02:45 PM
#1
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if i got a lower compression afr head would i be slower then with stock heads? well im trying to get afrs but i would like to no if i got the afr 205 76cc if my car would slow down while of the boost or no nitrious ....?
08-19-2005, 03:16 PM
#4
The ls1 head is a 66cc and the ls6 is 64cc. I would "GUESS" you would loose power due to the loss of compression. When I built my new motor useing MTI's P/P 6.0L heads(72cc) I could feel a slight loss in power over my old setup, which was full boltons and a tr224. I am running 9.1 to 1 compression now. Some one plese chime in if my #'s are incorect. Hope this helps.
08-19-2005, 03:22 PM
#5
I highly doubt you will lose more power than you would gain just by dropping from 10:1-9:1 compression. I mean typically an afr head will net you 40rwhp. So I can garuntee you won't lose 40rwhp from 1 point of compression. Now it's possible I suppose that losing compression would have an effect on the 40rwhp gain numbers, BUT, I don't see how.
08-19-2005, 03:47 PM
#7
AFR 205s only come in 66cc chambers...around what a stock LS1 chamber is. The 225s come in 72cc chambers and soon in 62cc chambers. Even in stock unmilled form, the AFR 205s are around 40 rwhp better than stock.
__________________
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.
