Quote:
Originally Posted by JSH
This is the most popular topic at this site, so let's all try to be more precise.
When I said "my build", here it is:
Custom valve train
PP heads
FII blower spacer plates & thermal reduction blanket
Kong ported blower/snout
NW 103mm ported TB
Griptec snout pulley ( 2.4)
10% lower pulley
MMS mild catch can
DSX low side pump
Kooks Long tubes
Hi-flow cats
Custom heat exchangers
RotoFab
104UL @ $9.85/Gal 
ECM Tune/dyno
It may or may not make 825whp, we'll see in April.
Back to your comment, and others here know more than I on these topics, but here's KaTech's 2650 pkg. pump gas numbers:
KaTech G6 Camaro ZL1 Stage 5
• Roto fab Intake
• Supercharger Pulley
• Lower Pulley
• CNC Headwork
• Springs
• Lifters
• Camshaft
• 103mm Throttle Body
• Magnuson 2650
Power Target: 925BHP/785whp
Starting at: $22,000.00
And my build will cost you something like $20-26,000 |
Those numbers seem a little low to me. Especially at that price.
Quote:
Originally Posted by DrBlockHed
Thanks for sharing this. My goal Whp is 700ish. So for now, I should be fine with port work and a pulley. The added cost of a 2650 at that point is 6k or so, I believe.
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My suggestion is to not think you'll be satisfied at any specific HP number. I thought that and I was wrong. I spent a couple thousand dollars on my HC doing a pulley/dyno tune with upgraded injectors thinking 750-ish to the wheels would be enough for me. I am at 766 RWHP and right now the car feels slow since I am used to it. If I had known better, I would have just went bigger the first time. But now I will be taking it back to the shop to get some more mods which kinda means the pulley/tune I just did was a waste of money. It wasn't a lot of money. But a waste regardless. Most likely you will not be satisfied with a setup that is strung out at 700-ish RWHP. I have seen quite a few ZL1 owners who went the port/pulley route initially just to realize that it wasn't enough.
The thing about all this is...if you port pulley the stock blower, then there is no more room to grow and when you want more your only option will be to ditch the blower that you dumped money into. At least with an upgrade, in the case that you want more in the future, they can just expand on what you already have. It is way more efficient and has way more potential and that is always the goal for modding. Think about it. What is better...a setup at it's max pushing 700 RWHP and having to resort to using meth and E85 and race gas and needing some company to port the life out the blower and all these other combinations? Or a setup making 800+ RWHP easily on pump gas only and still having room to grow?
Now if you are on a budget then do whatever works best. If not then you are better off shooting a little higher.