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Shop For MX-5 MIATA PARTS 90-97 MX-5 MIATA PARTS 99-05 MX-5 MIATA PARTS 06-12 DON'T MISS ...  Service   
|  Boss Frog Miata Venom V8 ™ KitsIf you are ready for some awesome power out of your NA or NB Miata, then look no further. Boss Frog has developed some new V8 swap kits that will turn your car from mild to wild! Boss Frog has been building top quality rollbars and accessories for Miatas for over 5 years, and is far from being a garage startup or a one-man operation. You can be assured that these kits will have the outstanding quality and customer support of the other Boss Frog products. Boss Frog uses the following key drivetrain components: ENGINE- the Miata Venom V8 kits use the LS series GM engines typically used in Corvettes, Camaros, Firebirds and GTOs, because they are lighter and more powerful than the Ford 5.0 liter V8’s. TRANSMISSION- the transmission selected is a Borg Warner T56 syncromesh 6-speed manual transmission that was used in Vipers, Corvettes, Cobras, and F-body cars. These transmissions use a hydraulic clutch and have an excellent performance record. DIFFERENTIAL - Boss Frog looked seriously at the Getrag differential used in Cadillac CTS. The bottom line is that these transmissions were developed for 260HP V6 engines, and they have had serious problems with seals, loss of pre-load, whining, and wheel hop which has resulted in recalls and thousands of angry customers (see the Cadillac forums). Of course these vehicles were heavier than a Miata, but even the similar size Pontiac Solstice was recalled for these same differential problems. The differential that Boss Frog uses is the track proven Ford 8.8 out of ’89-’97 Thunderbirds with a custom independent rear suspension. This bulletproof differential has hundreds of gear ratio and limited slip options combinations available, all of which are readily available anywhere. DRIVESHAFT – Boss Frog’s driveshaft has the biggest joints and tube size available in these kits – over 15% stronger than a stock driveshaft. AXLES - the Miata CV joints were never intended to handle the 350+ horsepower that these LSX engines are capable of, so Boss Frog uses the larger axles. Boss Frog kits will give you the strongest overall drivetrain available, so that you can put down the most reliable horsepower at the track or the strip. The kits are divided up into various components and systems, so that you can purchase exactly what you want, when you are ready for it.
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