Performance Camshafts 01.04.2021 Performance Camshafts
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PERFORMANCE CAMSHAFTS 01.04.2021 PERFORMANCE CAMSHAFTS Thanks to our many years of experience and the careful attention paid to the respective valve train conditions, our PERFORMANCE CAMSHAFTS combine high power output with long service life. Our camshafts are manufactured from new, unmachined parts. We employ particular care in ensuring faultless tempering and first-rate surface treatment. Assembly information: It must be ensured during every camshaft installation that at maximum valve lift, there is still approx. 1-2 mm free lift available and that between the piston and the valve in the OT there is also still sufficient safety clearance. Tappets and rockers should, where possible, be replaced when installing our camshafts, and under no circumstances may they display visible wear. It is recommended to label the parts when disassembling the motor so that they can be re-installed in the same place. With the exception of racing setups, the valve springs can generally be left in series because a low revolution increase is already made possible by the altered cam profile. The valve clearance specified by the manufacturer of the engine should be used for normal driving. The specified opening times are given as effective opening times without ramp-up time. In determining opening times, it must be ensured that for an OHC engine around the same valve intake diameter can be achieved with approx. 15° less opening time compared to a piston engine. 2 PERFORMANCE CAMSHAFTS When installing a performance camshaft in a series engine, the appropriate tuning measures must be made at the same time. If possible, this should be carried out by a tuning company with experience of the respective engine. The desired engine performance is dependent on the quality of this work, and therefore we cannot provide any performance data for our camshafts. Warranty: Our camshafts come with a wear resistance warranty for 6 months after delivery. In the event of damages we provide a replacement for the part supplied by us. Further claims for subsequent damages are expressly excluded. Our prices: are ex works prices, not including packaging and VAT. In the event of interest in camshafts that are not shown here, please contact us. Price lists are valid for delivery as of 1st of April 2021 Schleicher Fahrzeugteile GmbH & Co. KG P.O. Box 70 17 08 D-81317 München Boschetsrieder Str. 125 D-81379 München Telefon: +48 89 78 50 07-0 Telefax: +49 89 78 50 07-39 [email protected] www.schleicher-fahrzeugteile.de 3 PERFORMANCE CAMSHAFTS Notes on measuring the opening times of camshafts in engines, especially for engines with piston, rocker arm or cam-follower valve trains Many influencing factors can severely affect the measurement result, - above all the elasticity of the valve train, - the accuracy of the measuring device, - the bearing clearance of the camshafts and rocker arm shafts, - possibly the sinking in of hydraulic elements and - the precision during the measurement. The opening times we specify are theoretical opening times at the end of the ramp-up time and at the beginning of the ramp- down time (beginning and end of the actual cam lobe). The valve movement, based on 1° revolution of the crankshaft, is partially extremely small (e.g. 0.007 mm), whereby the aforementioned influences on measurement can lead to rather considerable, apparent deviations from the opening times we specify. Furthermore, the assembly of the drivetrain (chain wheel etc.) and the camshaft drivetrain itself (elasticity etc.) can lead to further angular deviations. Our suggestion for a reasonably reliable measurement is as follows: pretension of all valves equally approx. 0.5 - 1 mm (on valve clearance setting, on each base circle). Then measure the opening times on a particular additional valve lift, e.g. 0.5 or 1 mm. Due to the fact that the opening times, as shown, also depend on the assembly and settings of the camshaft, the opening times specified by us can only be partially related to the position of the cams, but not to the overall position in the motor. Careful assembly of the camshaft must therefore always include test and adjustment work. Please follow our assembly instructions in the performance camshaft catalogue! 4 PERFORMANCE CAMSHAFTS Whether a camshaft/cam profile is more or less of a strain on the valve train can only be determined with an exact analysis and comparison of the cam profiles. However, in general (exceptions possible) it can be said that racing camshafts do not create greater strain on the valve train, so long as the engine revolution speeds are not considerably increased at the same time. During assembly, the clearance to the piston and the valve spring must be checked for blocks. A check to see if the valve spring is sufficient must be carried out in the event of an engine revolution speed increase. Due to the fact that tuned engines are more stressed than series engines, a shorter service life, greater wear and earlier malfunction of engine parts must be expected. Engine damage can also occur in non-tuned engines, especially if they are constantly put under a lot of strain. According to the statistics for component failure frequency (Wöhler curve etc.), after a certain age the likelihood of malfunction increases constantly. This is generally true for everything, from a bicycle to nuclear power plant. Whether a camshaft is responsible for engine damage can therefore generally only be determined by statistical inspections and not on an individual case basis. It must be checked whether the customer condoned this shortened service life in order to benefit from the increased performance. In the event that a customer does nevertheless claim for damages, it remains to be checked whether they did everything within their power to minimize this damage. For the aforementioned reasons, and because we are rarely exactly aware of the assembly conditions and use, we only grant a 6 month warranty on the replacement of camshafts in the event of a production or material failure. Liability for further damages is, however, insofar as legally permissible, not accepted. 5 PERFORMANCE CAMSHAFTS Information on catalogue: 6 PERFORMANCE CAMSHAFTS 7 PERFORMANCE CAMSHAFTS 8 PERFORMANCE CAMSHAFTS 9 CARS PERFORMANCE CAMSHAFTS sheet 1 based on item-no. EA OEZ Spr AO AS EO ES NV Hub MH HoT price € comment Type ALFA-ROMEO DOHC 1,6 - 2,0 ltr. 1357 280 105 65 35 35 65 N 10,80 M 3,3 310,45 Ro 225 1356 308 105 79 49 49 79 N 11,00 M 4,1 373,00 Ro 205 1361 320 105 85 55 55 85 N 11,70 M 5,4 373,00 Ro 416 AUDI 5-Zyl. 1159 16,00 Pinion, separate order Ritzel 1158 280 112 72 28 28 72 N 11,20 H 1,7 200,00 for hydr.valve lifter Ro 300.12 1373 278 113 72 26 26 72 N 11,20 H 1,3 200,00 for hydr.valve lifter Ro 511.13D AUDI 50/POLO Cam follower 1086 280 112 72 28 28 72 V 10,35 M 1,6 200,00 valve lift at TDC ~1.6 mm Ro 537.12 AUDI 80/GOLF/SCIROCCO/PASSAT 1376 268 110 64 24 24 64 N 11,30 H 1,4 281,60 hydraulic valve lifter Ro 820.10 1106 296 103 71 45 45 71 N 11,58 M 4,3 379,70 spec. for GTI Ro 251.3 1103 300 104 74 46 46 74 N 11,75 M 4,4 379,70 Ro 263.4 1096 280 112 72 28 28 72 N 11,20 H 1,7 379,70 for hydr.valve lifter Ro 300.12 11 PERFORMANCE CAMSHAFTS sheet 2 based on item-no. EA OEZ Spr AO AS EO ES NV Hub MH HoT price € comment Type VW GOLF/PASSAT 16V 1126 E 264 111 63 21 21 63 N 10,90 H 1,5 282,65 hydraulic valve lifter Ro 365 1147 A 270 113 68 22 22 68 N 10,96 H 1,1 388,10 hydraulic valve lifter Ro 766 1148 E 270 106 61 29 29 61 N 10,96 H 2,2 388,10 group N - qualified Ro 766 1122 E 272 113 69 23 23 69 N 10,50 H 1,5 388,10 group N - qualified Ro 302 1121 A 272 113 69 23 23 69 N 10,50 H 1,5 388,10 hydraulic valve lifter Ro 302 1119 E 280 111 71 29 29 71 N 11,20 H 2,1 388,10 hydraulic valve lifter Ro 300 1120 A 280 111 71 29 29 71 N 11,20 H 2,1 388,10 hydraulic valve lifter Ro 300 1115 A 280 110 70 30 30 70 N 11,20 M 2,5 388,10 base circle 36 mm Ro 241.5 1116 E 280 110 70 30 30 70 N 11,20 M 2,5 388,10 base circle 36 mm Ro 241.5 1156 E 284 100 62 42 42 62 N 12,20 M 4,0 388,10 base circle 35 mm Ro 799 1155 A 284 110 72 32 32 72 N 12,20 M 2,6 388,10 base circle 35 mm Ro 799 1118 E 296 100 68 48 48 68 N 11,58 M 4,7 388,10 base circle 35 mm Ro 251 1117 A 296 100 68 48 48 68 N 11,58 M 3,5 388,10 base circle 35 mm Ro 251 1127 A 304 105 77 47 47 77 N 11,85 M 4,62 388,10 Gkd.