Quote:
Originally Posted by BlaqWhole
I personally would never want to get into cam swaps ever again. Unless it was on an older car, lol!! Coming from the 5th Gen side of things, I saw too many failure threads related to cam swaps to ever make me feel completely comfortable with it.
My 17 ZL1 currently has about 5500 miles on it. And as it gets closer to 10K miles I am feeling a bit more open to the idea of modding it a bit more. I am considering either a pulley setup or going for the Whipple 2.9. I will also do headers in addition to whichever way I decide to go. But I'm also considering trading the car in for something badder! Lots of choices. I don't want to do mods just to get bored with the car and want something else. That would be a waste. So if I see some really good results with Whipple/LT or pulley/LT setups that are worth the money and hassle of voiding my warranty and if I do decide to keep the car then we'll see. I will say that even if these setups can get an extra 100 hp then that would make quite a difference.
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I think a Pulley/LT setup has been WELL proven here and on the C7 Z06 side. Going with a Lower pulley setup, intake, TB, LT and tune on 93, you're picking up some really good power and you don't have to start screwing with meth/E85 if you don't want to, though both would add significant power.
I find the Whipple 2.9L to be a bit of a waste if you're going to be bolting it on and not turning it up, which of course requires fuel system modifications and supporting mods, and at some point soon, a cam. Here's why I say a bit of a waste:
1) $7600 for the blower from the vendors I looked at (+$1500 for good Headers and other supporting mods)
2) It's a big blower, but spinning it at really low RPM's keeps it out of its efficiency range.
SO, just like most of us know, the benefits of a big blower vs a small blower aren't really that noticeable at equal HP levels until you start pushing them. This is why the LSA and LT4 have smaller blowers yet manage just fine. But once you start pushing big blowers vs small blowers, then the gap widens a lot. And I don't think by a setup you'd be talking about, that you'd be pushing either blower. If you were, you'd need fuel system mods. And you can't pulley it too much on the stock engine either.
Now notice, that on the big heads/cam/fuels system and pulleyed Whipple builds, they make 100-200 RWHP more than the 1.7L Eaton ever could. (900-940+ RWHP via Vengeance and HHP to name a few). Again, at the bolt on level, I would definitely vote the cost savings, simplicity, and more tested, Pulley/LT/Bolt on/Tune route.