I agree - both turbos spin up until the wastegate is open. Could be cam, IP or compression ratio changes.
Tom Hargrave Quoting "Kaleb C. Striplin" <[EMAIL PROTECTED]>: > The turbos are interchangable from the older engines to the newer ones. > > As far as I can tell, they are identical. > > John Ervine wrote: > > > Luther Gulseth wrote: > > > >>617.950 is listed at 115HP and the .951/2 are 123/125HP. If > >>stroke/displacement are the same, what did they change that increased > the > >>HP? Are the shortblocks identical? TIA all. > > > > > > In addition to what has already been mentioned, the w116 300SDs used > the earlier > > AirResearch turbo units. I believe AirResearch was later purchased by > Garrett, > > but don't know that for fact. > > > > -- > Kaleb C. Striplin/Claremore, OK > 91 300D 2.5 Turbo, 90 420SEL, 89 560SEL, 87 420SEL, 87 300SDL, > 85 380SE, 85 300D, 84 190D 2.2, 83 300TD, 81 300TD, 81 240D, > 76 240D, 76 300D, 74 240D, 73 280SEL 4.5, 72 250C, 69 250 > http://www.striplin.net > > _______________________________________ > http://www.okiebenz.com > For new parts see official list sponsor: http://www.buymbparts.com/ > For used parts email [EMAIL PROTECTED] > > To Unsubscribe or change delivery options go to: > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > Thanks, Tom Hargrave 256-656-1924
