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QR25 CAMSHAFTS
The QR25DE is a 2.5 L (2488 cc) variant built in Decherd, TN with cast steel connecting rods, a steel timing chain, counter-rotating balance-shafts, and an aluminum intake manifold. The engine bore is 89 mm with a stroke of 100 mm and a compression ratio of 9.5:1. Output is rated 175 hp at 6000 rpm with 180 ft·lb of torque at 4000 rpm in the Altima 2.5 (2002-present) and Sentra SE-R (2002-present) models. Altimas that are PZEV compliant create 170 hp and 175 ft·lb of torque. In the 2005+ Nissan Frontier (2005-present) the QR25DE generates 154 hp and 173 ft·lb of torque. More recently, in the Nissan SE-R Spec V (2007-present) the QR25DE generates 200 hp @ 6600 rpm and 180 ft·lb of torque @ 5200 rpm with a 7000 rpm redline. The crankshaft comes fully balanced allowing removal of the counter-shafts built into the older style QR25. The newer version is also equipped with a composite intake manifold and compression has been bumped up to 10.5:1. |
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Description |
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Part# |
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Adv. Dur. |
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Dur @ .050 |
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Lift (in) |
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Lift (mm) |
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Kit# |
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Cam Card |
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Dyno |
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Shop |
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Status |
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Street/Strip Specification
Plug and play application. Short duration for nice street manners, slight lope at idle. Excellent all purpose spec. Pick up 1500 rpm at redline. OEM spring OK. |
BC0261 |
264°/256° |
230°/221° |
.424"/.399" |
10.77/10.13 |
BC0260 |
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Out of Stock |
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Race Specification
Longer duration profile, added rpm potential. Intended for fully built engine. Tuning and ECU mods recommended. Requires kit BC0260. |
BC0262 |
272°/264° |
238°/228° |
.430"/.410" |
10.92/10.41 |
BC0260 |
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Out of Stock |
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Nissan OEM QR25DE cam specs |
Stock |
256°/256° |
214°/194° |
.406"/.340" |
10.31/8.64 |
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| Note: The above cams fit 2002 - 2006 model years. They do not fit 2007 & up. |
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619.749.9018 ph
619.749.9128 fx
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| Some products listed are not legal for sale or use on emission controlled motor vehicles, RPM ranges vary on application.Warranty Information Copyright © Brian Crower Inc. All rights reserved.. |
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WARNING: This product can expose you to chemicals,
including Chromium (hexavalent compounds), lead and lead
compounds, which are known to the State of California to
cause cancer, birth defects or other reproductive harm. For
more information, visit www.p65warnings.ca.gov |
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