Brian Crower Crankshaft Subaru STI EJ257
BC high performance camshafts are ground on state-of-the-art CNC cam grinders to insure accuracy and tolerances to within .02mm. Every BC camshaft profile has been prototyped and dyno tested for proven horsepower results prior to placed into mass production. By grinding cores in high volume, Brian Crower, Inc. is able to pass the cost savings on to the end user. Quality at an affordable price.
BC uses small diameter grinding wheels during the finishing phase when applicable to generate a more aggressive ramp rate for a faster cylinder fill rate. More air + more fuel = more power. Although it takes longer to grind the cams, research and development has proven that the inverted radius created by the small grinding wheel on the opening side delivers more horsepower on radius and roller rocker applications than the conventional, large diameter grinding wheels.
All BC cams are checked on a high speed, sub-micron accuracy measuring gauge. The Adcole Camshaft Measuring System uses individual measuring heads for each cam journal and cam lobe, with .01 micron resolution, taking one datum point each 1/10th of a degree or 3,600 data points per revolution. Measuring camshafts for rise error and chattermark detection, this model can measure 200 parts per hour.
BC billet crankshafts are made from only the highest grade, 4340 steel bar stock to guarantee the strongest part available at any price. CNC machined on state-of-the-art mills and nitrided for added longevity, BC billet crankshafts are ground to exacting tolerances for easy, trouble free installation. BC cranks are sold separately and most engine makes are in stock for immediate delivery.
83mm Stroke
Note: Pictures are for representation only, actual product may vary.
*Contact Us for special pricing.*
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Make
Vehicle
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Model |
Submodel |
Year |
Engine |
Notes |
2008-2017
Subaru
STI
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STI |
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2008-2017 |
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Brian Crower, Inc. was created to fill the need for high quality, high performance, late model internal engine components, in stock, at very affordable prices. Stroker kits for all popular Sport Compact applications and camshafts and valve train to match. Complete packages designed to work together to deliver more horsepower and torque as well as greater reliability. Every product line is tested on precision measuring instruments for accuracy, imperfections and metallurgy. Dyno tested and tuned for optimum results.
Due to the nature of performance applications and lack of control during installation and operation, all products sold by Brian Crower Inc. are sold without any expressed warranty or any implied warranty of merchantability or fitness for a particular purpose. Brian Crower Inc. shall not, under any circumstances, be liable for any special, incidental or consequential damages, including, but not limited to, damages or loss of other property or equipment, loss of profits or revenue, cost of purchased or replacement goods, or claims of customers of the purchaser which may arise and/or result from the sale, installation or use of these parts. Brian Crower Inc. reserves the right to make product improvements or changes without notice and without incurring liability with respect to similar products previously manufactured.
Brian Crower Inc. warranties are void when said Brian Crower product in question has been physically altered, improperly installed or used or otherwise damaged due to no fault of Brian Crower Inc. or has not been used for the said purpose it was intended or for which it was designed. Brian Crower Inc. does not warrant the performance of the products due to Brian Crower Inc. lack of control during product installation and usage.
These products are designed primarily for off highway use. Check State and Federal laws and emissions regulations.
WARNING: Cancer and Reproductive Harm
