![]() They recommended going with relatively mild street cam like a Comp 260H grind, which has a. BBC Blown BBC Drag Racing Drag Racing Engines Racing Engine Builder Supercharged. ![]() The kb's are not really that good for what you are trying to do. The ’32 Ford weighed in at around 2800lbs with a 350 cubic-inch engine at 9:1 compression, a TH350 transmission with a 2200rpm stall and 3.50:1 rearend gear ratio. compression ratio too high blower drive ratio improper timing poor. I'm thinking I want to go on the lighter side as I'm sure this won't be the last time I have them apart.I want some revs - I'd like to see 5800 - 6000 at WOT.Use the JE's if you are going to rev them that high. Prices are $300 for the KB hyper, $600 for the JE, Ross was over $700 Approximate compression ratios: and 7.64:1 with 119cc head" - isn't that just dandy - Figure 5: Logical operation time (including IO) on the synthetic data (100 million bits per bit vector). The TRW L2377F pistons in my Gen V's - from the TRW site:"These pistons are not compatible with Gen V or Gen VI engines. I started to put together a comparison chart, but the information was all over the wall. The published cr's.aren't on the same page across vendors. Thanks for the response - Interesting that SpeedPro only got 9.6 with a 25.7cc dome. The 310 horsepower rating of a 1973 Pontiac Trans Am SD 455 may seem quite dismal if you're comparing it to something like the 370 horsepower rating of the 1970 Pontiac Trans Am RAIV 400, but the actual difference in the power output of these two engines is much smaller than the 60 horsepower discrepancy indicates.Manuf. Net horsepower was attained from engine dynos with the accessories, OE air cleaner, and factory exhaust system present on the test subject engine. The cam is factored into dynamic compression. Correct me if I may be wrong but Ive also heard its also in the cam profile that determines what octane youll need. David Vizard recommends a DCR of 7.5:1 - 8.5:1 for pump gas. To make horsepower numbers more accurate to what you would actually see from your engine when installed in your car, for the 1972 model year, American car manufacturers started using "net" horsepower figures. Typically 8:1 dynamic compression is acceptable with iron heads and 8.5:1 with aluminum heads. ![]() Between the lack of power-robbing accessories and restrictive exhaust systems, the advertised horsepower numbers were quite inflated when compared to today's power figures. Also these power figures were typically attained with a very unrestrictive open exhaust system, along with the lack of restrictive OE air cleaner assemblies. Could you change pistons to drop it to say 13 to 1 with out having to change any other major. These gross horsepower figures came from engine dyno results in which the tested engine had no real-world accessories attached such as power steering pumps, smog pumps, and or A/C compressors. I have a 638 BBC has big chief heads and 15 to 1 compression. Calculate the compression ratio by solving this equation: If you end up with a number of. Do this almost the same way you would the deck clearance (Step 7): (Bore measurement from Step 8 + Bore × 0.7854 × gasket thickness). This engine is a mild idling High vacuum street engine for a stock stall converter automatic with big torque from idle to 5000 rpm it is Idea for a daily driver rod and deluxe comfortable show car. "Net" HorsepowerĪs for American carmakers, previous to the 1972 model year, the horsepower figures you typically saw in car manufacturer literature and car magazines were "gross" horsepower figures. Measure the head gasket’s thickness and bore to determine the gasket volume. 355 Small block mild street build with huge torque HP & Torque: 375 HP / 410 FT LBS. One horsepower is equal to 745.7 watts, watts being a unit of power that James Watt also came up with, and the same unit you see everyday associated with things like light bulbs and electrical devices. WebMax safe comp ratio with 91 octane would about 10 to 1 but with a BBC. The addition of an equity calculator makes the BBC mortgage calculator into a. Compression Ratio Calculator Highest compression ratio for 91 octane. One horsepower is equivalent to the amount of force needed to lift 550 lbs of weight within a period of 1 second. Compression Ratio Calculator v2.3 WebBlock Check Character Calculator How. Watt would call this new unit of measurement "horsepower". Back in the 18th century James Watt was developing steam engines and wanted to come up with a unit of measurement that would indicate the amount of workhorses the steam engine would replace. 045, 21cc dome piston, and alluminum head. Remember that the diameter refers to the width of the cylinder. This would be BBC 11 to 1 compression, quench. Use a bore gauge to measure the cylinder bore’s diameter. Horsepower is a measure of the ability to move a certain amount of weight a certain distance, within a certain amount of time. 14374 Views 35 Replies 15 Participants Last post by Paul Swartz, Jump to Latest 0.
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