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UPCOMING TRADESHOWS
11/23/2011
Please come visit us at the following tradeshows and check out whats new at Supertech   Performance Racing Industry (PRI) Orlando, FL December 1-3 booth # 5735   Autosport Tradeshow Birmingham, England January 12-13  booth E733    
2012 Supertech Catalog
11/16/2011
Our new catalog is available to be downloaded,  please click the link below to download your copy today. www.supertechperformance.com/2012_supertech.pdf
Extreme Valve applications
06/08/2011
In the last article, the author looked briefly at the kinds of materials that we might use for high specific output applications such as supercharged or turbocharged engines. In the article we mentioned a couple of the popular ’superalloys’ which are used for poppet valves, namely ‘Nimonic’ and ‘Inconel’ alloys. Although not as widely used as the Nimonic materials, Inconel is used in the same sorts of applications, and Wayne Ward recently discussed its use as a valve material with Californian-based Supertech, a leading valve manufacture specialist who...
Technical
Valve Failure Analysis
IMPACT FAILURE

Characteristic appearance of an impact failure.

NOTE: Breakage by impact is a sudden failure.

(example: Piston/Valve collision).
FATIGUE FAILURE

Characteristic appearance of a fatigue failure.

NOTE: Breakage by material fatigue happens after thousands of cycles, starting in a small defect and advancing until breakage occurs.

Contact
Supertech Performance Inc
3550 Charter Park Drive, San Jose, CA 95136-1380
(408) 448-2001
www.supertechperformance.com
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BMW
BMW S54 24v 3.2 lts
INTAKE VALVE Part Number EXHAUST VALVE Part Number
Head Diam Stem Diam Length Black Nitrided Head Diam Stem Diam Length Black Nitrided
M3/2002+ 35mm
(std) 
5.97mm 117.50mm BMIVN-1040 30.5mm
(Std) 
5.95mm 119.1mm BMEVN-1040
35mm
(std) 
BMIVN-1040S 30.5mm
(std) 
BMEVI-1040S
36mm
(+1) 
BMIVN-1045S 31.50mm
(+1) 
BMEVI-1045S
VALVE SPRINGS Outer Spring Inner Spring Pressure Max Lift Coil Bind Rate Titanium Retainer
Part Number O.D. (MM) I.D. (MM) O.D. (MM) I.D. (MM) Seat Open mm mm lbs/mm Part Number
SPR-2521/BM 26.4mm 19.3mm 19.3mm 14.5mm 82@41 186@10 15.5mm 25.5mm 10mm RET-BM2521/T1+Factory Seat
BMW
BMW S42/M42/M50/S50/M52/M54
INTAKE VALVE Part Number EXHAUST VALVE Part Number
Head Diam Stem Diam Length Black Nitrided Head Diam Stem Diam Length Black Nitrided
1.8/2.5lts(16v)2.8/3.0lts(24v) 33mm
(std) 
5.97mm 106.10mm BMIVN-1030 30.50mm
(Std) 
BMEVN-1030
33mm
(std) 
BMIVN-1030S/Single 30.50mm
(std) 
5.96mm 105.65mm BMEVI-1030S/Single
34mm
(+1) 
BMIVN-1031S/Single 31.50mm
(+1) 
BMEVN-1031
31.50mm
(+1) 
BMEVI-1031S/Single
VALVE SPRINGS Outer Spring Inner Spring Pressure Max Lift Coil Bind Rate Titanium Retainer
Part Number O.D. (MM) I.D. (MM) O.D. (MM) I.D. (MM) Seat Open mm mm lbs/mm Part Number
SPR-H100DR/BM 30.20mm 22.20mm 22.20mm 16.80mm 67@35.70 220@12 17.20 18.50 12.9 RET-K20A2/T2+SEAT-BM50(x24)
SPR-H1005D/BM 29.65 21.85 20.50 15.50 98@35.7 236@12 15.00mm 20.70 11.50 RET-K20A2/T2+SEAT-BM50(x24)
SPR-H1000D/BM 29.65mm 21.85mm 20.50mm 15.50mm 84@35.70 220@12 14.50 20.70 11.50 RET-K20A2/T2+SEAT-BM50(x24)
BMW
BMW S14 16v/S38 24v
INTAKE VALVE Part Number EXHAUST VALVE Part Number
Head Diam Stem Diam Length Black Nitrided Head Diam Stem Diam Length Black Nitrided
E30 M3 87-91 37.00mm
(std) 
123.00mm BMIVN-1006/L 32.00mm
(std) 
125.00mm BMEVI-1006/Long
38.00mm
(+1) 
6.98mm 121.40mm BMIVN-1008 32.50mm
(+.5) 
123.70mm BMEVN-1009
38.5mm
(+1.5) 
121.40mm BMIVN-1009 32.5mm
(+.5) 
6.95mm 126.10 BMEVN-1009/Long
38.5mm
(+1.5) 
123.80mm BMIVN-1009/Long 33.00mm
(+1) 
123.70mm BMEVN-1010
39.00mm
(+2) 
121.40mm BMIVN-1010 33.00mm
(+1) 
126.10mm BMEVN-1010/Long
39.00mm
(+2) 
123.80mm BMIVN-1010/Long 33.00mm
(+1) 
123.70mm BMEVI-1010
VALVE SPRINGS Outer Spring Inner Spring Pressure Max Lift Coil Bind Rate Titanium Retainer
Part Number O.D. (MM) I.D. (MM) O.D. (MM) I.D. (MM) Seat Open mm mm lbs/mm Part Number
SPR-H1022D/S14 29.00 21.80 21.00 15.50 110@37.6 220@10 15.50 22.0 11.20 RET-H70/T1+SEAT-H1002D
SPR-H1005D/S14 29.65 21.85 20.5 15.50 92@35.5 220@11 14.50 20.70 11.50 RET-BMS14-T1+ Seat-H1002-S14
BMW
BMW S50 B30 EURO VERSION
INTAKE VALVE Part Number EXHAUST VALVE Part Number
Head Diam Stem Diam Length Black Nitrided Head Diam Stem Diam Length Black Nitrided
E35 M3 3.0lts 34.00mm
(std) 
6.97mm 121.00mm BMIVN-1036 30.60mm
(std) 
6.96mm 119.75mm BMEVI-1036
BMW
BMW S50 B32 EURO VERSION
INTAKE VALVE Part Number EXHAUST VALVE Part Number
Head Diam Stem Diam Length Black Nitrided Head Diam Stem Diam Length Black Nitrided
E36 M3 3.2lts 35.00mm
(std) 
5.97mm 119.75mm BMIVN-1037 30.60mm
(std) 
5.96mm 121.3mm BMEVN-1037
35.65mm
(+.65) 
121.30mm BMIVN-1033SL 31.00mm
(+.40) 
122.8mm BMEVN-1030PSL
BMW
BMW BMW M20 B25 2.5L 12v
INTAKE VALVE Part Number EXHAUST VALVE Part Number
Head Diam Stem Diam Length Black Nitrided Head Diam Stem Diam Length Black Nitrided
E30/E34 325/525'77-'92 43.00mm 6.97mm 102.50mm BMIVN-1085 37.00mm
(+1) 
6.95mm 105.65mm BMEVI-1085
BMW
BMW E30/E34 525 77'-92'
INTAKE VALVE Part Number EXHAUST VALVE Part Number
Head Diam Stem Diam Length Black Nitrided Head Diam Stem Diam Length Black Nitrided
BMW M20 B25 2.5L 12V 42.00mm
(std) 
6.97mm 102.50mm BMIVN-1084 36.00mm
(std) 
6.95mm 102.50mm BMEVN-1084
43.00mm
(+1) 
BMIVN-1085 37.00mm
(+1) 
BMEVI-1085
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