nitrous heads on L-92
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From: Ft Lauderdale, FL
nitrous heads on L-92 Im getting ready to build a L-92 shortblock and need to put some bad *** Heads on it. I was looking at the L-92 heads but they have very poor Exhaust flow compaired to some of the heads out there, not too sure what a ported head could do but from what i have seen im not impressed. Also the intake runners are HUGE 270cc, that has to hurt the velocity of the head, and they dont Flow THAT much to compinsate for that size runner in my opinion.
I was looking at these two heads...
http://totalengineairflow.com/products/gmhead/dartls1/
the 225cc ones....
http://totalengineairflow.com/products/gmhead/tfsls1/
I also looked into ETP but wasnt too impressed with the flow #'s compaired to runner size. I know flow #'s do not mean everything by ANY means but that pretty much the only way to shop for me since I have not seen anyone out there with a simialar set-up, everyone is just slapping the L-92 heads on, is that what I shoud do? I know they are cheaper but I dont want to but them and be like **** why didnt I spend the $$ and do it right the first time....Any help advice would be GREAT. Thanks guys....
Joe
I was looking at these two heads...
http://totalengineairflow.com/products/gmhead/dartls1/
the 225cc ones....
http://totalengineairflow.com/products/gmhead/tfsls1/
I also looked into ETP but wasnt too impressed with the flow #'s compaired to runner size. I know flow #'s do not mean everything by ANY means but that pretty much the only way to shop for me since I have not seen anyone out there with a simialar set-up, everyone is just slapping the L-92 heads on, is that what I shoud do? I know they are cheaper but I dont want to but them and be like **** why didnt I spend the $$ and do it right the first time....Any help advice would be GREAT. Thanks guys....
Joe
Joe,
Let me give you a hint about this.... don't judge a cylinder heads potential for making HP with N2O or forced induction based on exhaust flow. Just because you have another chemical in the mix to make high cylinder pressures you still need to get as much of that chemical, air and fuel into the cylinder as possible. Then you can fix that with the cam timing as needed. This principal works in motors like Pro Stock and NASCAR as well, and they also happen to have similar valve ratios as the L92 heads do.
Also if you judged heads by flow vs runner size the L92's would like crap, so don't do that as well. The velocity in these headsis actually VERY good, it's very even unlink most of the cathedral port LS heads.
Bret
Let me give you a hint about this.... don't judge a cylinder heads potential for making HP with N2O or forced induction based on exhaust flow. Just because you have another chemical in the mix to make high cylinder pressures you still need to get as much of that chemical, air and fuel into the cylinder as possible. Then you can fix that with the cam timing as needed. This principal works in motors like Pro Stock and NASCAR as well, and they also happen to have similar valve ratios as the L92 heads do.
Also if you judged heads by flow vs runner size the L92's would like crap, so don't do that as well. The velocity in these headsis actually VERY good, it's very even unlink most of the cathedral port LS heads.
Bret
