- Apr 5, 2017
I don't think it's a matter of right and wrong, but preference. How boring would this hobby be if EVERYONE did the exact same thing? I enjoy having the same car but different approaches to our shared goal of enhancing the car's performance.Prove me wrong
Not gonna deny that - just by matter of having two turbos, two wastegates, two downpipes, etc. I think the "bad wastegate" design is beat to death. Sure an 80K mile stock turbo car will have issues, but have there really been any examples of hybrids having the issue? I'm sure Rob can give us his metrics on it.Twins have roughly 2x the failure points vs. a single and still rely on a bad wastegate design.
While the speedtech bottom mount is pretty nice, and a great value proposition - it misses 2 of the biggest reasons people go single turbo - 1. easy service (I also never understood why servicing or replacing the turbo is such a great thing, if singles are supposed to be so much more reliable) 2. no bling factor. I would run the speedtech just because it adheres more to my motto of 'closer to stock' - no chance of the valve cover melting, etc. I'm still not a fan of pre turbo O2s though.Twins of similar output cost less vs. a single top mount of similar output. However with the new speedtech bottom mount I think it tips in the single's favor for power output & price.
On a slightly related note - to the OP - if you're buddy just wants to be "fast" and beat your car and wants a 10 second car - dump this platform. Sorry, but LS is just too damn easy to make big power. You can take a Colorado, slap a junkyard 4.8 and a china turbo and run 9s at 150 on stock everything, and that's a truck. I'm excited to see Steven Clark's LS 135 setup finally run. I still think he spent too much money on things he didn't need to. I say run those 4.8 paper headgaskets and just send it!