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Boost level adjustment and MPG
Hi,
I have been reading all of the archive about tweaking the boost, and then the ALDA as a result. My ALDA has not been messed with. I get really good MPG, and my performance is fine for most all everyday use. There are a few short merges that Id like a bit more performance on. Since I know I dont get more than 9psi, Im thinking a dawes boost controller ought to help. My question is, since the ALDA enriches the fuel quantity based upon boost, if I install a boost controller, will I be burning more fuel typically? RIght now I have about 6psi at 70 mph, steady with cruise control on, driving along flat terrain. I assume the boost controller will do nothing to change that, and as a result, the amount of boost, and the amount of fuel used will be the same pre and post install. In other words, the only time when the boost controller (and resulting ALDA fuel enrichment) will occur is at times when boost over the 9psi (max I currently get) is required or can be made. At that point, instead of spooling to only 9, Ill get 11, and thus more fuel, more power and better performance. But regular cruising, which typically only needs 6-7psi will remain the same, because theoretically my wastegate is only now venting at 8-9psi or so. Am I right? Thanks! JMH
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Current Diesels: 1981 240D (73K) 1982 300CD (169k) 1985 190D (169k) 1991 350SD (116k) 1991 350SD (206k) 1991 300D (228k) 2008 ML320 CDI (199k) 1996 Dodge Ram CTD (442k) 1996 Dodge Ram CTD (267k) Past Diesels: 1983 300D (228K), 1985 300D (233K), 1993 300D 2.5T (338k), 1993 300SD (291k) |
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