A few Procharged L92/LS3 questions...
#1
A few Procharged L92/LS3 questions...
I made a deal with a buddy for a 6.2 long block. I have a few questions concerning my boost build options.
I already have a Holley 90mm TB, Kooks 1 7/8x2" header with 3.5" collectors, 3.5" to 4" merge, and a 4" cutout.
1) What boost specific cam should I go with? I know LS3/L92 heads are picky when it comes to cams...
2) The heads have the solid valves, I will be using Patriot .660 Extremes dual springs. I don't plan to rev past 7k. Depending on the cam selection, should I be worried about valve float with the heavy valves?
3) I know the L92/LS3 heads don't have the optimum deck thickness for boost, but I am only planning on running 9-10psi of boost. Will the stock LS3 4.065" MLS head gaskets and ARP head studs work for my build? Anyone know the ARP part number off hand?
4) I am torn between getting a LS3 intake manifold or getting an Edelbrock L92 EFI Victor JR intake. I know I am not boosting a lot, but what would you guys recommend?
All help is greatly appreciated, thanks.
I already have a Holley 90mm TB, Kooks 1 7/8x2" header with 3.5" collectors, 3.5" to 4" merge, and a 4" cutout.
1) What boost specific cam should I go with? I know LS3/L92 heads are picky when it comes to cams...
2) The heads have the solid valves, I will be using Patriot .660 Extremes dual springs. I don't plan to rev past 7k. Depending on the cam selection, should I be worried about valve float with the heavy valves?
3) I know the L92/LS3 heads don't have the optimum deck thickness for boost, but I am only planning on running 9-10psi of boost. Will the stock LS3 4.065" MLS head gaskets and ARP head studs work for my build? Anyone know the ARP part number off hand?
4) I am torn between getting a LS3 intake manifold or getting an Edelbrock L92 EFI Victor JR intake. I know I am not boosting a lot, but what would you guys recommend?
All help is greatly appreciated, thanks.
#2
http://www.exoticperformanceplus.com...Car.php?car=59
Take a look at the power we made with this LS3 with our blower camshaft.
I don't see a problem with your valves to 7k.
The heads will be just fine, we're pushing much more boost out of this LS3 Hummer. http://www.exoticperformanceplus.com...Car.php?car=56
ARP head studs http://www.exoticperformanceplus.com....html?item=721
With the power increases we have seen with the newer FAST intakes, you might want to consider one. http://www.exoticperformanceplus.com...html?item=1703 Bob
Take a look at the power we made with this LS3 with our blower camshaft.
I don't see a problem with your valves to 7k.
The heads will be just fine, we're pushing much more boost out of this LS3 Hummer. http://www.exoticperformanceplus.com...Car.php?car=56
ARP head studs http://www.exoticperformanceplus.com....html?item=721
With the power increases we have seen with the newer FAST intakes, you might want to consider one. http://www.exoticperformanceplus.com...html?item=1703 Bob
#3
http://www.exoticperformanceplus.com...Car.php?car=59
Take a look at the power we made with this LS3 with our blower camshaft.
I don't see a problem with your valves to 7k.
The heads will be just fine, we're pushing much more boost out of this LS3 Hummer. http://www.exoticperformanceplus.com...Car.php?car=56
ARP head studs http://www.exoticperformanceplus.com....html?item=721
With the power increases we have seen with the newer FAST intakes, you might want to consider one. http://www.exoticperformanceplus.com...html?item=1703 Bob
Take a look at the power we made with this LS3 with our blower camshaft.
I don't see a problem with your valves to 7k.
The heads will be just fine, we're pushing much more boost out of this LS3 Hummer. http://www.exoticperformanceplus.com...Car.php?car=56
ARP head studs http://www.exoticperformanceplus.com....html?item=721
With the power increases we have seen with the newer FAST intakes, you might want to consider one. http://www.exoticperformanceplus.com...html?item=1703 Bob
Also what length pushrods did you end up using?
I have been looking into the FAST 102, but it sure is pricey.
EDIT: I would be happy with anything over 600rwhp for this build to start. I feel that is a safe number for a stock 6.2 bottom end. It seems in your thread that the car peaked at 671rwhp with maxed timing is that correct? Would you have a guess as to what psi would help me achieve my goal?
EDIT2: I forgot to ask what belt system did you go with 6/8/cog/flit drive and did you have any belt slippage issues? I have the standard Fbody J-bracket with the Chevy Chad mod (extra pulley machined onto one of the standoffs for increased belt wrap) but I only have 6 rib pulleys as of now.
Last edited by ss.slp.ls1; 03-18-2010 at 11:48 AM.
#4
11 Second Club
iTrader: (5)
I have a 3.70 6 rib blower pulley if your interested. Procharger sent it to me on accident instead of the 8 rib. I suggest switching to an 8rib setup. The 6rib might be fine for a little bit but start piecing out a 8rib setup. The difference in cubes and flow you might try a 3.70 blower and a 7.65 crank pulley. Also, which dampner are you going with?
#5
I have a 3.70 6 rib blower pulley if your interested. Procharger sent it to me on accident instead of the 8 rib. I suggest switching to an 8rib setup. The 6rib might be fine for a little bit but start piecing out a 8rib setup. The difference in cubes and flow you might try a 3.70 blower and a 7.65 crank pulley. Also, which dampner are you going with?
#7
I have the stock J-bracket but one of the stand offs has been machined down to include another pulley for increase belt wrap around the supercharger pulley.
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#9
TECH Fanatic
iTrader: (177)
I was thinking about using a 3.55 pulley, but I am not sure how to calculate estimated boost levels by pulley size.