Quote:
Originally Posted by VitViper
Are you guys willing to sell the kit without the turbo/wg/bov? We have our own preference on turbo options and prefer Turbosmart to Tial items.
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Sorry this is not an option. With different components (turbo/wastegates) there in no guarantee that things will fit.
Quote:
Originally Posted by phunk
Some guys just need more fuel than others! It all depends on individual goals and needs. There is no clear crossover point where it becomes absolutely necessary, but it does eventually become necessary for most. Those making high power without one would generally find themselves in better shape to have it. Someone could say that they have 600rwhp with no return system, but that doesnt mean it shouldnt have one... fuel pressure is going to drop towards redline when you are looking at that type of flow through stock plumbing especially when the pressure is regulated before rather than after incoming flow restrictions. Most tuners will find fuel pressure drop to be unacceptable because any system that is performing beyond its limits is going to lack consistency and without consistency in your fuel system you cannot really consider the setup to be truly dependable.
All aside from that, nobody ever really considers how efficiently their individual car is consuming and burning the fuel that its supplied. If two E85 370zs are running identical builds but one is tuned to 17 degrees timing and the other is tuned to 23 degrees timing, you are looking at 2 cars producing a variance of 75-100hp out of the same exact fuel volume. Timing is only one of countless values that can effect the engines ability to efficiently turn fuel into horsepower. Odds for or against you can reach the end of a fuel system a couple hundred HP apart. Some guys think a Walbro 255 can only support 400rwhp but I have seen them make 670rwhp! Its all over the place.
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Charles, thank you very much for sharing your expertise with the community when it comes to fuel systems, and how they perform...I am sure everybody appreciates it, I for sure do.
You also hit the nail on the head with regards to tuning and how power output and timing are so intricately connected. I have customer making 520whp and 480ft/tq, while some others are managing "only" 480hp and about 400ft/tq....all on the same OEM fuel system. Based on torque alone, it is easy to see that the higher torque output car has much higher timing....allowing for much higher power output with the same amount of fuel. I am seeing such a huge range with fuel injector duty cycles as well, which again is closely tied to how the car is tuned.