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Old 03-08-2013, 04:17 PM   #1431
mknittle
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Join Date: Jul 2011
Location: Auburn ca.
Posts: 2,886
Re: Finally starting my Longhorn 4x4 conversion

Quote:
Originally Posted by watahyahknow View Post
i think a retarder / magnetbrake would work better ,

i have seen motorbrake stuff but i think it works by smothering the intake air while cutting the injectors the vacuum makes the engine resist reving when running downhill in gear , prolly whont work with turbo's as they get hurt when you cut the air intoo them ... sucks the oil right trough the seals
thosr things are too heavy. all class 8 truck engines can be fitted hith engine brakes and do not work on vacuum thy work on compression and the more manifold pressure the better the braking.We are getting around 30 PSI on a Cummins big cam 2 on the jake.
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My GMC build.
http://67-72chevytrucks.com/vboard/s...d.php?t=536602
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