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Mods are done - Final Dyno 355 RWHP ( 415 at the crank ) 356 RWT
Mods include:
Mass Air flow and modified throttle body
Modified air box w/ power coupler & high flow power duct & light kit
Z06 Intake manifold w/ modified water jacket
Crane roller rocker arm set
Corsa Touring Exhaust
Reprogramed Computer & VHP Dynotune
All for a reasonable $ without getting into heads & cam.
How does this compare with others?
Re: 355 RWHP without going into the engine! (Buckmaster)
Crane roller rocker arm set
That's where all your gains are coming from, bud... they're 1.8:1's or 1.85:1's, right?
Stock is 1.7:1.
By going to the higher ratio rockers, you effectively increased the lift of your intake & exhaust valves...which is equivalent/similar to a cam change.
I'm guessing you paid $700 or more for them, plus install.
You could have bought a new cam for half the cost of the rocker set-up, (~$350-$400)with labor--$6-700, and gotten potentially better #'s.
Strong numbers, nonetheless:) :cheers:
Re: 355 RWHP without going into the engine! (johnso26)
The best gain was from the rocker set and the Z06 intake manifold. Stock is 1.7, it is 1.8. Installed price was about $ 1100, mostly labor. The Dyno was done on a balmy 70 degree day, about 80% humidity.
As far as driveability, You'd never know you did anything until you stomp on it. Nice and smooth. The rocker set in combination with the Touring exhaust make for a nice blapty blapty blap.
On the track at full out it awsome as noted by those behind me. It really pulls strong from low out of the corners down the straights - thru 155+.
I also added the hotchkis sway bars, Eradispeed rotors & Carbotech race pads for track use. Huge gains out of each of these items. And for those with F45, the performance setting is pretty tight, while you can drop it into tour on the ride home and it doesn't beat you up so bad.
Vinci did a great job getting a lot of power & torque w/o a limited amount of investment.
:cheers: :cheers: :cheers: :cheers: :cheers: :cheers:
Re: 355 RWHP without going into the engine! (C5Noir)
The water jacket mod is - when you switch to a Z06 intake manifold, it takes away the water jacket cooling tube that is on a stock intake manifold. VHP extends this tube to the back of the Z06 manifold to keep it cool. He also reroutes the fuel line and gets it off the hot parts of the engine to keep the fuel temp down