Anyone went this route?
03-05-2011, 11:38 AM
#1
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Anyone went this route? This is going to be kind of long sorry.
I have a 402 with 32cc manly pistons ,ported dart 225's 205 160 valves ( was expecting 8:7:1 but builder said ended up 9:2:1 cause heads were milled to clean up., comp xr265 hr cam 522/529 lift 212/218 dur on 114, ls 6 intake ,Texas speed 1 7/8 lt's with ory and hooker cat back with cut outs, with d1 7.65 crank pulley 3.4blower pulley, 80 lb injectors 8an feed 1/2" return and magna fuel boost ref reg and dual walbros plus ati inline boost pump. 150 wet compucar system. In front of a circle d 258mm triple disc converter and a 4l80 mv with a trans brake and a 9" with 3:89's .
What I need to know is if I drop to a 3.0 bp and keep rpm around 6200 what's the expected hpand boost? Will I have belt slip issues at such a low rpm? Also right now I have the 4.5" dual intercoolers. I'm trying to decide the best front mount to go with. Laterite will up grade to a bigger head unit but this is new and I have it. Also this is a street car that will see as much track as possible
I had more $$$ to put towards system but I bought the ss in my sig for parts and then decided to save it and run my drive train in it. So I'm hoping to save a little if possible. To top it off my daughter wants the blue one in my avatar so i have to buy a motor for it. Anyway what do y'all think?
I have a 402 with 32cc manly pistons ,ported dart 225's 205 160 valves ( was expecting 8:7:1 but builder said ended up 9:2:1 cause heads were milled to clean up., comp xr265 hr cam 522/529 lift 212/218 dur on 114, ls 6 intake ,Texas speed 1 7/8 lt's with ory and hooker cat back with cut outs, with d1 7.65 crank pulley 3.4blower pulley, 80 lb injectors 8an feed 1/2" return and magna fuel boost ref reg and dual walbros plus ati inline boost pump. 150 wet compucar system. In front of a circle d 258mm triple disc converter and a 4l80 mv with a trans brake and a 9" with 3:89's .
What I need to know is if I drop to a 3.0 bp and keep rpm around 6200 what's the expected hpand boost? Will I have belt slip issues at such a low rpm? Also right now I have the 4.5" dual intercoolers. I'm trying to decide the best front mount to go with. Laterite will up grade to a bigger head unit but this is new and I have it. Also this is a street car that will see as much track as possible
I had more $$$ to put towards system but I bought the ss in my sig for parts and then decided to save it and run my drive train in it. So I'm hoping to save a little if possible. To top it off my daughter wants the blue one in my avatar so i have to buy a motor for it. Anyway what do y'all think?
03-05-2011, 09:04 PM
#3
You'll be over spinning the blower a little bit with that pulley. With the smaller IC's you'll also be losing thermal efficiency by spinning it faster, creating more heat and then not being able to cool it down well enough. I think you have a lot left on the table with that cam as well.
