Quote:
Originally Posted by DavidBoren
The vvt and blower combination just makes sense to me, as well. Granted, I do not have any actual experience with boosting LS motors, so it's probably best to listen to the man with real knowledge on this topic.
The price of the vvt delete parts, and the compatibility of the vvt timing cover with the blower accessory drive will be a huge determining factor. If the blower drive doesn't line up with the vvt cover, it's time to swap cams, and nix the vvt. If it lines up, then there's no reason to delete it, in my opinion. Assuming that the valve springs used with vvt can actually support boost. I don't know if the vvt requires special springs, or if they are stiff enough for 12psi.
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Right, just seems dumb to throw away a good power making technology haha.
I'm a quick learner, but still have a lot to learn on all this. But given some simple math like 10 hp per lb of boost I think even a stock cam VVT setup plus 12 lbs gets me to my goal w/ a conservative tune for 93 octane. If I can lower my compression a bit even better. I know it will build heat if I beat on it on a road course for long, etc. Not really intended use though. I also think on stock LSA boost it won't make my power goal without a big cam, so this is the most $$ efficient way to get there.
I get the idea to "overbuild" and be bulletproof, but I also don't have a super expensive short block. I could spend $2k overbuilding a $2400 shortblock lol, or just hope I don't blow it up and if I do buy another and turn down the boost (or build that second one appropriately for more money). Not sure if that makes sense to anyone else, but it's my view on paying for warranty etc also. I'll take some risk I may have to spend more money in the future rather than for sure spend a decent portion of it up front.