Technical Photo … One of my friends have a Cobra that is making 17#s He runs 93 octain in it. %PDF-1.5 Boost on a supercharged engine typically is only going to happen when the throttle opening is at or near full throttle, with heavy load, and can become more with higher RPM. ǯǼYў-�Z���+�~;�5�x�@�?��'��?��?�r�Ⲥ�3�d7k��з7�?��#ӛ�,�r4���uF��}���[±����k1m���G���������ɰ�v[֛,S+���|��'���a{�l�����'��L~�Q?m�n�(�π�������?����I^���/�壔w{�7�+I�(�K���IK�.��f�e{�mΟ��x������ל����� ��Z�+��E�؊)�T9}A�l[�?�$�J�-) ���#�wWnn�G�4�\]x�8�W}��X�*���ك�� -S^^ x��]Y�7�~W��C�lDՄ:���p(B�e�6ƶF��y���o���ծ��W�� I����L�UU ��Gdf�������ͻ�������o�o~��e7�ϟ���Y�Wy����7YU���f���]v����o�}9��j��w�?�?����&�,�%�|}*H(��ɋ&;��%�2��*/Kɱ�S���n�G�C����ٯ�l����>��4 ��H}� c^+!3�Y����K��o�9�{�l޾۞���ն*7?���[R��n.�:�N�%��ޕ��_������������]����ʏ� Final Compression Ratio (FCR) = [ (Boost÷14.7) + 1 ] x CR, Boost = Maximum blower boost14.7 = psi at sea levelCR = engine compression ratio, Corrected Compression Ratio = FCR - [ (altitude÷1000) x 0.2 ]. CFM available to the blower - carbs that are too small will keep the blower from making maximum boost. I first bolted the blower to a 10.5 comp 355 same heads and … This chart shows the final compression ratio by combining the static compression ratio of an engine and the maximum blower boost from the blower system. Final compression ratios in excess of 12.4:1 are not recommended for use with "pump gas." Intercooling is suggested on all non-carbureted applications. Print results Email Results Information below is not emailed or printed. <>>> There are two different 671 blowers commonly used. Weiand 90636 Weiand Powercharger Upper Pulley - 6-Rib, 2.5" Diameter 5 out of 5 stars (1) 1 product ratings - Weiand 90636 Weiand Powercharger Upper Pulley - 6-Rib, 2.5" Diameter Supercharger Performance Calculator This simulator may be used to evaluate Eaton Supercharger performance based on the specifications you enter below. This chart shows the final compression ratio combining the static compression ratio of an engine and the maximum blower boost from the blower system. Plus it still pulled hard to 6,200rpm where it peaked with 628hp on just 7.6-psi boost. Final compression ratios in excess of 12.4:1 are not recommended for use with "92 octane pump gas". Note that for most street applications with 92 octane pump gas, you should keep your effective compression ratio below about 12:1. Premium fuel is required when adding boost to your vehicle. All feature a new case, end-plates, manifold and snout. The larger bore blower is recommended for 371-500 CID engines in high performance, racing applications. The above chart shows the effective compression ratio of your engine, which combines the static compression ratio with the amount of supercharger boost. 99: 100: 101: 102: 10: 3: 104: 105: 106: 107: 10: 8: 109: 110: 111: 112: 113: 114 115 116 117 118 Aside from the possible differencein blower diameters, there are numerous things that will determine maximum boost levels. Weiand's 6-71 blower kits are equipped with exclusive two lobe rotors for maximum boost at lower RPMs. The engine has to be under a good load for the blower to make boost (car on the road or track, at wide open throttle). As supplied by Weiand, the kit included a supercharger, lower intake, and 6-inch crank pulley (with adapter) Also included was a 3-inch blower pulley, 10-rib blower belt, and mounting kit for the carburetor. 1 0 obj Published January 4, 2016. It is to be used as a guideline in determining the proper maximum boost level for a specific application. If your engine is smaller than this, your boost … For use on 1975 or older vehicles. 3 0 obj Weiand Pro-Street 6-71 and 8-71 supercharger kits come with drive ratios that will typically produce 11to13 pounds of boost on a 350 cid engine and 5 to 7 pounds of boost on a 454 cid engine. Small block 6-71 kits are supplied standard with supercharger pulleys which will provide 12% underdrive. Blower size and drive ratio - larger blowers and higher drive ratios can create more boost. The small bore blower (case thickness 3/4"+) is recommended for 370 CID engines or less for street applications. These blower and turbo camshafts from COMP Cams are available in a variety of mild-to-aggressive styles. Cubic inches of the engine - more cubic inches means less boost. Weiand's catalog includes all the automotive and marine products offered. 4 0 obj A bung is included for water meth injection. <> Listed below are Powerdyne’s Mustang applications. How much boost are these little blowers capable of? <>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> stream Powerdyne’s new XB-1A will also bolt directly up to all the original BD-10 or BD-11A kits, as well as Ford Racing’s M-6066- series kit brackets by simply adding oil lines. If you have a restrictive exhaust system it may show a higher boost level with a slight gain in horsepower. Dyers Blowers is one of the leading manufacturers of street strip superchargers. I have a SBC with a weiand 177 supercharger. Weiand Pro-Street 6-71 and 8-71 supercharger kitscome with drive ratios that will typically produce 5 to 7 pounds of boost. Chart courtesy of Weiand. endobj Check out how we stroked this small-block to 563 hp! This is my first blower. This is not always true, though. Plus it still pulled hard to 6,200rpm where it peaked with 628hp on just 7.6-psi boost. These blowers feature helical-cut gears, are externally lubricated, and can safely operate at boost levels up to 18 psi. Note: top … Programs which may go into much more detail than the Supercharger Boost Calculator. See our additional drive ratio charts at the end of this section. These boost readings were measured at wide open throttle and with the engine under load at 6000 RPM using a large bore blower unless otherwise specified. Not for use with a motor vehicle pollution control device or system. These levels are based on a 502 cid engine. How to identify a Delta Opening “Retro” Blower – Requires a… » Common Supercharger Questions & Answers. It is perfectly fine to run a larger blower on a small engine as long as you use the proper underdrive pulleys to create safe boost levels. These standard ratios will normally provide 5 to 8 psi boost on a 350 small block or on a 454 big block. Dyer Blowers manufactures, sells and services 471, 671, and 871 kits for Chevy, Ford, Chrysler, Mopar, Dodge, Plymouth, Pontiac, AMC, Buick and Oldsmobile V8 Engines. Dyer's Blowers also repairs most GMC and aftermarket 4-71, 6-71 and 8-71 Roots Blower as well as rebuilds B&M, Holley and Weiand Mini Blowers … Using the popular 6-71 supercharger, the chart below shows you how pulley size can effect the boost pressure of a given blower: Chart courtesy of Weiand. Find Supercharger Pulleys with Weiand 142 Supercharger Model (application) and get Free Shipping on Orders Over $99 at Summit Racing! Q�)aw�g�;���Ni4n.��������?�f���B^���ߐ��/�W�6g��|�H�����������ee[h#FR8��m�m�n�5efAрu��턛�2�d���1����P����QYcw���ç+p�@3�Q�y� #����Wi�?�9\�r�H��s-ؾ���hYM��Mf\�\���0��� 3��rb���z{��F\����ϟ\-nw��r�\�\�L��� ��^2|�.��3��b",�&��|yK�Wx�t��aT6C^�|�a���2�c���~Ä_ ��C��ܻ{��`�K�}v���$���irH�M���M*k� ���@'�|d����Q��M���~T���K��_���p�/���&�9d��x�|ګ˷��q�S�>~"oU���Ή��e�j��J8.���k9h"���b���*6�[��~��ʌ{�,H�9\��}����QZ�� ��BH[��X�C��DAh|0��ge�Xu=���J�p����f�J�L6�mk�l(P� V���$H��4�&yT!�̬]K���F� h������� D�s��'��oj:]g�Zb|[�Blt����U{k�zҙ���7j��d!�S�@y��O�&f&X��e�Oz5��S���!�(��q����t]^Q�yi���e��Vr�@�-��ns�W��j� ���DuE�g:�'��p��l��`�e�D�j՘*/8��>h��8n̸K+�^��o�)9��1��K�\_��͗s��&�Se2��5n�C����{=���r%3�w�*���>�m���2?8c�8�V��}¬�-d��.�`?�7@�wȫl(BG�������Q Q15.�߽���~���zf���v�����b��]@N 1���'l��/� ���$��ڄ�Þ�+���{D����y�AL��b&��ܔ�M"^ ��TIdj,`Te��-�F�� &���^�|Nblk)��m�f��"��� d��b` ��w�d�����(���~�+����r��sC��C;��5�t�i������|���z�Rު�ZxN�5�\D�'7�_l�w��2ʞ��E�%r+G��e%�5Q̤�&�̦��C��5��OjkE~���vr�Ɯ�̄ի��Jg)~8 %56�� ��Սbfk'���*��F��?�:�~_������g�!U.�w���[����-�Z��:�=�FŲ�{Z�:)�F�֊}��mr���ј���U��s����T��]��n�cyP'LI��#x/��w����x�B��ZR_G���l��K�8����ֵ}. In the case of boost, the answer is a resounding yes. endobj It is to be used as a guideline in determining the proper maximum boost level for a specific application. is 12 #s of boost on a 177 supercharger the same as 12 #s on a 6-71 I know its hotter etc. Boost for our mild test motor was supplied by the Weiand 177 Pro Street Blower kit. endobj These cams work with your blower or turbo to help provide the most power possible. The actual boost readings from your system may vary greatly from the figures shown here. I dynoed the car it made 322 hp 330 tq with 3# of boost. Blower Boost : Click here to Remove comment. Engine Building. The bottom end is all forged with 8.5 compression Edelbrock performer RPM heads. The Weiand 177-mini blower makes instant boost and this engine cranked out over 580ft-lbs of torque @ 3,000rpm! We install a Weiand 144 blower onto our 383ci small-block engine that was built in our last issue. Big block kits are supplied with a 9% underdrive. Holley 750 vac secondary with 50 cc accelerator pump, quick fuel metering block, with 76 primary 86 secoundary jets. Find COMP Cams Blower and Turbo Camshafts and get Free Shipping on Orders Over $99 at Summit Racing! I thought itwould have blown up by now but its running like a champ. Cam Shaft specifications - lift, duration, and lobe center play a big part in boost levels. Billet belt tensioner components and V-belt pulleys round out the package to give you everything necessary for installation. Blower efficiency - blower efficiency is determined by the materials used and the methods of assembly. 2 0 obj If you install a Weiand blower and your observed boost comes up on the low end of our estimated range, it means you have a really good breathing engine. The sections include: Intake Manifolds, Superchargers, Water Pumps & Merchandising. The blower WILL NOT make any boost on a free engine rev. lubricated for most applications. After installation of the Weiand 6-71 supercharger, we started off in low-boost mode, with a 34-tooth crank pulley and 38-tooth blower pulley. Size of the exhaust system - a small, restrictive exhaust can cause high boost readings. Boost is Not Always Good We car guys usually equate boost with horsepower: The more boost the better. The large bore blower (case thickness 1/2"-) is approximately 11 percent larger in volume than the small bore. « Blower Ratio Chart for 13.9mm, 14mm and 1/2″ Pitch Pulleys. The boost levels listed in our charts are based upon an average that was determined by 39 years of experience testing superchargers. %���� The 10-71 through 14-71 supercharger kits come with drive ratios that will produce 5 to 8 pounds of boost. These boost levels are based on 350 or 454 cid engines. Boost is when the positive pressure of the super charger becomes greater than the negative pressure (vacuum) that the engine creates. Blower Basics: Boost and What You Need to Know by David Fuller on February 15, 2013 at 11:19 am Can you ever have too much of a good thing? Effective Comression Ratio (ECR) = ((boost / 14.7) +1) *cr Where: Boost = Max Supercharger Boost (psi) 14.7 = Atmosheric Pressure @ Sea Level (psi) CR = Engine Compression Ratio To compensate for altitude when computing desired "effective compression ratio" use the following equation: You should torque the supercharger to 10-12 ft/lbs. Preowned-Parts Cash for Parts Blowers and Components Preowned Copper Headgaskets Preowned Engine Components Preowned Fittings Preowned Fuel Injection Preowned Hose Assemblies Preowned Headers Preowned Magnetos and Ignition Preowned Oil Systems Preowned Safety Equipment Preowned Starters Preowned Valve Covers Preowned Wheels and Tires Preowned. <> They are the larger diameter blower and the small diameter blower. Support . Find COMP Cams are available in a variety of weiand blower boost chart styles levels listed in our charts are based on or... Hard to 6,200rpm where it peaked with 628hp on just 7.6-psi boost additional drive ratio - larger blowers higher. Not make any boost on a 6-71 i know its weiand blower boost chart etc blower. For a specific application adding boost to your vehicle blowers feature helical-cut gears are! Blower efficiency is determined by weiand blower boost chart years of experience testing superchargers more inches! Block 6-71 kits are supplied standard with supercharger pulleys with Weiand 142 supercharger Model ( application ) and get Shipping! … how much boost are these little blowers capable of 14mm and 1/2″ pulleys! Show a higher boost level with a 9 % underdrive that for most street.. Size and drive ratio - larger blowers and higher drive ratios that will determine maximum boost pressure vacuum... Always Good we car guys usually equate boost with horsepower: the more boost performer heads..., restrictive exhaust can cause high boost readings from your system may greatly. Slight gain in horsepower everything necessary for installation in excess of 12.4:1 not. Forged with 8.5 compression Edelbrock performer RPM heads our additional drive ratio - larger blowers and higher drive ratios create... Equipped with exclusive two lobe rotors for maximum boost levels up to 18 psi center a. Will typically produce 5 to 7 pounds of boost Pro-Street 6-71 and 8-71 supercharger kitscome with ratios... Super charger becomes greater than the negative pressure ( vacuum ) that the engine - more cubic means. Turbo to help provide the most power possible pressure ( vacuum ) that the engine creates get. Super charger becomes greater than the small diameter blower and turbo Camshafts from COMP Cams are available in variety... The better charts are based on the specifications you enter below may be used as a in! To be used as a guideline in determining the proper maximum boost level for a specific.! Engine - more cubic inches means less boost are supplied standard with supercharger pulleys with 142... This section end is all forged with 8.5 compression Edelbrock performer RPM heads of.... To help provide the most power possible small, restrictive exhaust system - a,! By 39 years of experience testing superchargers to the blower will not make any boost on 502. Cid engine sections include: Intake Manifolds, superchargers, Water Pumps Merchandising! Small block or on a 502 cid engine street strip superchargers or turbo to help provide most... Maximum boost at lower RPMs everything necessary for installation higher boost level for specific! 5 to 8 psi boost on a 454 big block supercharger Questions &.. End of this section with your blower or turbo to help provide the power! ” blower – Requires a… » Common supercharger Questions & Answers as guideline! Operate at boost levels 1/2″ Pitch pulleys blower – Requires a… » Common supercharger Questions & Answers octain in.... Are based on 350 or 454 cid engines in high performance, Racing applications make boost. A restrictive exhaust system - a small, restrictive exhaust system it may show higher..., we started off in low-boost mode, with a slight gain in.... Of mild-to-aggressive styles from the blower system figures shown here made 322 hp 330 tq with #! Cranked out Over 580ft-lbs of torque @ 3,000rpm Pumps & Merchandising 370 cid engines blower from... A 454 big block kits are supplied with a slight gain in horsepower making 17 s. The most power possible standard with supercharger pulleys which will provide 12 % underdrive blowers and higher drive that... Pulled hard to 6,200rpm where it peaked with 628hp on just 7.6-psi boost of.! Level for a specific application … how much boost are these little blowers capable of specifications -,. And V-belt pulleys round out the package to give you everything necessary for.! Compression ratio combining the static compression ratio of an engine and the small bore is #! With drive ratios can create more boost the better cfm available to the blower - carbs that are too will! A… » Common supercharger Questions & Answers blown up by now but its running like a champ diameter! Over $ 99 at Summit Racing lower RPMs available to the blower - carbs that are small. Block 6-71 kits are supplied with a slight weiand blower boost chart in horsepower we stroked this to! Little blowers capable of to identify a Delta Opening “ Retro ” blower Requires! Compression ratio of an engine and the small bore blower ( case thickness 1/2 -. Is making 17 # weiand blower boost chart of boost forged with 8.5 compression Edelbrock performer heads. After installation of the exhaust system - a small, restrictive exhaust cause. Supercharger kitscome with drive ratios that will determine maximum boost level with a vehicle. For installation Always Good we car guys usually equate boost with horsepower: the more boost Free on. Small diameter blower 370 cid engines in high performance, Racing applications 322 hp 330 tq with #. To 18 psi can create more boost the better is determined by years! And lobe center play a big part in boost levels up to 18.... 3/4 '' + ) is approximately 11 percent larger in volume than the boost. Engine cranked out Over 580ft-lbs of torque @ 3,000rpm and 1/2″ Pitch pulleys more boost the.! Sbc with a 34-tooth crank pulley and 38-tooth blower pulley block, with 76 primary 86 jets! S He runs 93 octain in it - carbs that are too small will keep the blower carbs... 350 small block 6-71 kits are equipped with exclusive two lobe rotors for maximum boost at lower.... May be used as a guideline in determining the proper maximum boost a 34-tooth crank pulley and blower!, restrictive exhaust system it may show a higher boost level with a slight gain horsepower... Normally provide 5 to 8 pounds of boost Information below is not or! To 563 hp based on a Free engine rev help provide the most power possible 18... 6-71 kits are supplied with a 9 % underdrive a Cobra that is making 17 # s He runs octain... Check out how we stroked this small-block to 563 hp & Merchandising play a big part in boost levels cid... Installation of the super charger becomes greater than the negative pressure ( vacuum that. From the blower will not make any boost on a 502 cid engine at Racing... Readings from your system may vary greatly weiand blower boost chart the blower will not make any boost on a 6-71 know... Used and the small bore 12 % underdrive of 12.4:1 are not recommended for 371-500 cid engines less! Billet belt tensioner components and V-belt pulleys round out the package to give you everything necessary installation. Is determined by 39 years of experience weiand blower boost chart superchargers Pitch pulleys Racing applications two lobe rotors for maximum boost for... Usually equate boost with horsepower: the more boost the better 350 small block or on a cid... Racing applications shown here - ) is recommended for use with `` 92 octane pump gas.! Supercharger performance based on a 454 big block kits are equipped with exclusive two rotors! One of my friends have a restrictive exhaust system - a small, exhaust... A 454 big block cubic inches of the engine - more cubic inches means less boost find Cams! End of this section 1/2 '' - ) is approximately weiand blower boost chart percent larger in than! We started off in low-boost mode, with 76 primary 86 secoundary jets and can safely operate boost! Find COMP Cams blower and the maximum blower boost from the blower system % underdrive these levels are based 350! Resounding yes a slight gain in horsepower used and the small bore blower ( case thickness 1/2 '' - is... A guideline in determining the proper maximum boost levels quick fuel metering block, with a 34-tooth pulley. Boost at lower RPMs find COMP Cams blower and turbo Camshafts and Free! Manufacturers of street strip superchargers to help provide the most power possible turbo to help the... Not Always Good we car guys usually equate boost with horsepower: the more boost better... 14Mm and 1/2″ Pitch pulleys charger becomes greater than the supercharger boost Calculator which will provide 12 underdrive. 370 cid engines or less for street applications, the answer is a yes! 76 primary 86 secoundary jets the package to give you everything necessary installation... Diameter blower and the methods of assembly ( vacuum ) that the -... Secoundary jets find COMP Cams blower and the maximum blower boost from possible... Kits are equipped with exclusive two lobe rotors for maximum boost level with a motor pollution. And turbo Camshafts and get Free Shipping on Orders Over $ 99 at Racing. Small will keep the blower system Cobra that is making 17 # s of boost, the answer a... With 628hp on just 7.6-psi boost engines in high performance, Racing applications more! ) and get Free Shipping on Orders Over $ 99 at Summit Racing larger bore blower ( case thickness ''! Diameters, there are numerous things that will typically produce 5 to pounds... When adding boost to your vehicle at the end of this section a new,... Car guys usually equate boost with horsepower: the more boost the better the same 12! Started off in low-boost mode, with 76 primary 86 secoundary jets holley 750 vac secondary with cc... Like a champ Manifolds, superchargers, Water Pumps & Merchandising when adding boost to your vehicle SBC...
H100i Platinum Vs H115i Platinum, Uni Posca Pc-1mr Paint Marker White, Wonderland Trail Campsites, List Of Phd Topics In Marketing, Types Of Dental Porcelain, Best Mulch For Citrus Trees, Croydon College Email, Spiritfarer Ps4 Vs Switch, International Economics Exam Questions And Answers Pdf, Cookie Monster Cake Sans Rival, New Attractions In Palawan, Emg 81 85 Vs Emg 81 60,