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431 rwhp gain with Kenne Bell Blowzilla
Some impressive numbers in the 5.0&SF. They started with a 99 GT with
a prepped short block & ported heads; baseline dyno run was 211hp / 248t at the wheels. With the K.B. Blowzilla at 20 psi they made 642h / 648t. This was on 100 octane, with an automatic trans. And with 15 psi they made 579h at the wheels on 91 octane. According to the article, the stock 99-04 engine is good for "only" around 450h at the wheels. They say the "regular" (non-Blowzilla) unit on a stock engine, with 90mm MAF, 75mm TB, and 75mm CAI makes 431h at the wheels. It was an interesting read. John 93 GT |
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431 rwhp gain with Kenne Bell Blowzilla
JohnV@nn wrote:
> Some impressive numbers in the 5.0&SF. They started with a 99 GT with > a prepped short block & ported heads; baseline dyno run was 211hp / > 248t at the wheels. With the K.B. Blowzilla at 20 psi they made 642h / > 648t. This was on 100 octane, with an automatic trans. > > And with 15 psi they made 579h at the wheels on 91 octane. That is a very good number using pump gas at 15 psi through an automatic transmission. The torque curve is probably even more impressive. > According to the article, the stock 99-04 engine is good for "only" > around 450h at the wheels. They say the "regular" (non-Blowzilla) unit > on a stock engine, with 90mm MAF, 75mm TB, and 75mm CAI makes 431h at > the wheels. The powder formed rods on the stock engines are the problem. Beyond 450 rwhp they tend to bend. The 4.6L blocks can support some awesome hp numbers with the right supporting parts like forged rods, pistons etc. It is a much better block than the 5.0L/302 and that is saying something, IMHO. > It was an interesting read. Gotta love those twin screw blowers and in particular, the Kenne Bell kits. KB does their homework before they put the modular kits on the market. |
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