How much HP does a FAST intake add?

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20-plus horsepower
FAST (Fuel Air Spark Technology) has a new LSX 92mm intake on the market made of stronger composite materials than the OE manifolds. FAST claims the new LSX 92mm intake will add 20-plus horsepower to the Gen-III LS1, LS2, LS6, and LS7 engines.

How much HP does a FAST 102 intake add?

14-16 hp
The big 102mm intake showed us a gain of only 4 rwhp-it didn’t respond to the CNC-ported heads and bigger cam we previously tested. When tested on stock LS3/L92/L99 engines, it has shown average gains of 14-16 hp.

Is the LS6 intake good?

While the LS6 is a good intake, the manifold developed by FAST is even better. The engineers flipped the LS1 market on its head when it came out with the original 78mm and 90mm intakes. Since then, FAST has made dramatic improvements over its previous designs to bring out its ultimate creation, the 102mm LSXR.

How much horsepower does a intake manifold add?

Depending on your make, model, engine size, and type of intake, truck owners can expect an increase of between 5 and 15hp.

How much HP does a LS6 intake add to a LS1?

We found that that the LS6 intake manifold increased our LS1’s output by nearly 10 hp at the rear tires while torque went largely unchanged.

Is LS6 a cathedral port?

GM 243 (LS6) and 799 (LS2), 226 cc AI’s flagship cathedral port increases the port volume by 15 cc over stock, allowing up to a 41-cfm improvement over stock while still utilizing the factory GM valves (reground).

How much power does an LS intake manifold make?

That is why we are also including average power production from 3,000 to 7,000 rpm, torque production at 4,000 rpm, cost, throttle opening, runner length, composition, and even What We Liked and might change on each design. In short, this was the most extensive LS intake manifold test ever devised.

Is there an absolute intake test for LS?

The first is that no intake test, including this LS extravaganza, is absolute. Intake manifolds are combination specific, meaning that the ideal intake for an 8,000-rpm stroker combination would be different than one designed for a stock 4.8L truck motor.

What is the difference between the fast LS and lsxrt manifold?

The LSXRT manifold (left) is visibly taller than the LSXR, offering more space inside for longer, straighter runners. Another noteworthy member of the FAST LS manifold family is the LSX RT, where the little “T” stands for “Truck.” For use in applications where hood or cowl clearance isn’t an issue, this manifold has a few new tricks up its sleeve.

What is the difference between an LS1 and LS6 intake?

First up was the LS6 intake. Designed as a factory upgrade for the LS1, the LS6 intake once again proved its reputation by significantly improving the power of our 6.0L. Compared to the LS1, the LS6 offered an additional 22 hp and 15 lb-ft of torque.