Measured in our own flow bench.
All flow numbers are measured with 28"H2O pressure differential.
Flow numbers are Inlet flow / Exhaust flow and below Exhaust to Intake flow ratio in percents.
Diesel
| Manufacturer | Model | Inlet / Exhaust valve sizes | 2mm | 4mm | 6mm | 8mm | 10mm | 12mm |
| BMW | M47/57 Diesel | 25.9mm / 25.9mm | 52.2/54.2 104% |
88.3/109.6 124% |
104.2/125.8 121% |
112.5/126 112% |
117.2/126.4 108% |
|
| Dodge | Cummins | 45mm / 42mm | .100" 59.7/49.6 83% |
.200" 102.6/100.6 98% |
.300" 125.2/131.1 105% |
.400" 140.1/142.6 102% |
.500" 144.8/143.7 99% |
.600" 147.1/146.3 96% |
| MB | 200CDI 16v | 30.2mm / 28.5mm | 45.4/55.8 123% |
87.2/101.8 117% |
124.9/133.9 107% |
149.5/154.2 103% |
158.4/161.9 102% |
164.1/168 102% |
| Vito 2.0 TD | 38mm / 35mm | 35.1/37.4 107% |
69.5/72.2 104% |
100.1/98.2 98% |
122.6/119 97% |
141.2/135.4 96% |
151.3/136.2 90% |
|
| Opel | 1.7TD | 36mm / 32mm | 38/32.9 86% |
65.3/60 92% |
91/76.8 85% |
109.1/87.6 80% |
118.7/95.3 80% |
123.7/98.7 80% |
| PSA | 1.9TD XUD9TE | 38.5mm / 33mm | 37.6/25 66% |
78.5/53.2 68% |
107.8/71.8 67% |
121.9/83.2 68% |
122.4/88.1 72% |
125.1/90.8 72.5% |
| HDI 16v | 30mm / 25mm | 62/51.5 83% |
106.8/97.8 91.6% |
123/120.3 97.8% |
129/131.9 102.3% |
133.2/135.3 101.6% |
136.4/136.9 100.4% |
|
| VAG | 1.9 TDI PD | 36mm / 31.4mm | 32.5/34.4 106% |
66.5/60.4 91% |
95.6/92.7 97% |
107.3/108.4 101% |
113/112.1 99% |
116.2/111.8 96% |
| 1.9 TDI VE | 36mm / 31.4mm | 32.6/27.7 84.8% |
70.4/57.3 81.4% |
97/82.9 85.5% |
108.9/98.8 90.7% |
110.5/105 95% |
112.4/104 92.5% |
|
| BKD 16v | 29mm / 25.5mm | 57/58.1 102% |
96.9/88.4 91% |
118/99 83.8% |
116.9/102.8 87.9% |
120.3/105.3 87.6% |
||
| CR 2.0 16v | 28.1mm / 26mm | 47/49.1 104% |
95.6/86.7 91% |
119.5/105.9 89% |
128.9/110.6 86% |
133.1/113.1 85% |
135.7/114.1 84% |
|
| 2.5 TDI VE | 36mm / 31.4mm | 33/31.9 96.5% |
70.2/61.6 88% |
92.2/83.4 91% |
102.2/101.6 99% |
101.2/108.3 107% |
101.4/113.4 112% |
|
| 2.5 TDI PD | 36mm / 31.4mm | 31/30.4 98% |
68/59.5 88% |
96.8/86.6 88.4% |
111.1/101 91% |
120.3/110.8 92% |
||
| Volvo | D5 2.4 1-gen | 28.8mm / 26.2mm | 56.2/61.9 110% |
97.3/100.8 104% |
114.7/108.7 95% |
121.6/110.7 91% |
125.7/111.9 89% |