View Single Post
  #7  
Old 06-08-2015, 01:07 PM
RLJ676's Avatar
RLJ676 RLJ676 is offline
Member
 
Join Date: Apr 2015
Location: Macomb MI
Posts: 66
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Thanks for all the insight everyone.

From what I've been reading the gains w/ a cam and tune even w/ the limiter are still huge, up to 100 hp w/ TSP's cam. Sounds like quite a bit is actually in the tune itself.

Budget is a concern, not to mention part of my fun in this is the challenge of getting the most from the least if that makes sense.

Dave, an LSA motor w/ less compression and simlar boost makes 650 pretty regularly, and that cam I understand to be very mild.

The L92 compression is quite similar to an LS3 (slightly lower actually). I read (on camaro5, etc) of many of them running 12, with quite a few in 13-15 lbs on 93 with no problems. They're making 650+ rear wheel at 12ish pretty easy.

So with the added benefit of VVT, I am now leaning towards actualy the stock cam and 12 lbs of boost, LS7 throttle body and a good tune. I think w/ a cam change I'm going to exceed power goals, as NA that would make 500 ish. Of course I could just do a cam and less boost, but what's the fun in that and it's not efficient $ wise, as then I"m in $800 for cam/springs etc to get the same output.

From what I've been learning on VVT (even w/ the limiter) it makes an awesome torque curve, so adding in the supercharger can only make it better haha. So even if I don't make my goal of 700 crank, which I still think I will, the power under the curve will make it a complete grin machine...well except for the tire costs haha.

Dave I was thinking the GMPP harness kit w/ a tune might be best. I'm going to run the modified CTS-V accessory drive from GM that puts the alternator up high in a vette position for clearance on the bottom. I am trying to determine if the L99 water pump which clears the VVT stuff will work with the CTS V FEAD. Looks like the water pumps due to lack of actual rib/edging are most flexible on belt placement at least.

Reading it seems you are pretty familiar with Thomson, do you know if they can tune for VVT well? If I had the dough I'd just have them be building from scratch for me, especially after seeing the LS7 short block/LS9 screw setups going in at sled alley haha!
Reply With Quote