How do you like the ALDA delete, and how is the smoke on it? Now that I've got my engine sorted, I'm looking at some other tricks.

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617 swapped Toyota Pickup, 22-24 MPG, 50k miles on swap

Best thing I've ever done to any of my 617s.

I've done it to 2 of the 617s I've owned, and its like driving a different car.
I always took the alda off, flipped it over, removed the phillips screws, and then removed the lower diaphragm part, reassembled and put back on and either plugged the tube coming from the intake or used it as a tap for a boost gauge.

Smoke is barely noticeable in the rear view unless you really shift early and hold it WOT, and even then you get a slight haze, then boost comes on and it cleans up. pulling a 26ft pontoon trailer I was told by a friend following me that it smoked quite a bit. but I was working it pretty hard to get that around these hills.

It makes throttle input linear. no surge of power when boost hits. just gradual power increase as rpm (and thus boost) climbs.

There are naysayers here that will swear up and down that a properly adjusted and functional alda is superior. I've owned 3 617s personally, and driven about 8 others, all in various states of good/bad/dying. best one I've ever driven is the blue auto I've got. it is like new inside and out other than a little clearcoat wear around the fuel filler that looks like a buffer was a little too vigorous.

I drove the car when my dad first got it, before the turbo drain went and he wiped the cam out and subsequently gave me the car and I put a new cam in, so now in my mind it isn't a "pristine" engine anymore, but before that it was the tightest, smoothest 617 I've ever driven. except that like every other one leaving a stop sign or light you put your foot to the floor and it goes bluuuuughhhhhhhhh and creeps away until around 1500rpm and then takes off like a bat out of.... well you get the point.

My grey car is the total opposite, it was abused bad. its worn out in a lot of ways. starts harder, idles rougher, everything about that poor car says it shouldn't last (but I'm making it). but with the alda gone, its a rocket compared to the blue car, even when it was still automatic. you'd get a little haze if you went WOT from a light, but it built boost faster and by the time you were through the intersection there was no haze.

To reiterate: Best mod ever. Feels like driving a car instead of a really tiny school bus.

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1982 300D (w123, "Grey Car")
1982 300D (w123, "Blue Car")
2001 Ford F150 "Clifford" (The Big Red Truck)
1997 Dodge Ram 2500 12V Cummins
1996 Dodge Ram 2500 12V Cummins
Previous Vehicles:
1995 E300D, 1980 300SD, 1992 Buick Century, 2005 Saturn Ion