JW240
All idiot, no savant
- Joined
- Aug 15, 2004
- Location
- The Netherlands, Europe
Very nice project, love the attention to detail. Excellent work.
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Since they've got the helical gear for the distributor drive, I assume they're B27/B28 cams. Any good?
Does this make any difference (performance/sound/mileage)? I have now the flat panel K&N in the original airbox, and I am seriously considering this mod...Some new pix:
Whipped up a heat shield/mount for the cone filter
Cutting the airbox would make more difference then that.Does this make any difference (performance/sound/mileage)? I have now the flat panel K&N in the original airbox, and I am seriously considering this mod...
Don't bother with an M46, they aren't worth putting behind a V6, I killed one with a stock b28E....An M46 swap could be in the cards for next winter. I needed to get it on the road for this summer, and I'm nowhere near as productive in the garage that I used to be before the kid. I've got the bell, flywheel, and most everything else, but I need to mod the flywheel for crank triggers & mod the bell for the CPS mount. Not deal breakers, but they weren't going to get done before this summer.
Besides, the automatic works very well behind the V6, and it suits the car well.
Does this make any difference (performance/sound/mileage)? I have now the flat panel K&N in the original airbox, and I am seriously considering this mod...
Don't bother with an M46, they aren't worth putting behind a V6, I killed one with a stock b28E....
I can't hear the damn thing over the noise from the exhaust, so I don't know how much noise it added. I doubt there's any performance or mileage improvement, but I haven't driven this combination with the stock filter to put that to rest.
That was probably an old needle bearing M46, as equipped behind a B27/B28, correct? It seems that you can break one behind just about anything, but the one I'd install has been behind a pair of improved turbo motors, and even though they weren't hot rods I'm sure this thing ain't making that kind of power.
But if I can find a Getrag before then, I'd be tempted to go that way.
Just an addition to your post here.Disassembled the B280F heads to check 'em out. This is the "Swirl" intake port
Compared to the EP and B280E intake port
Close up:
Interesting: check out the position of the spark plug. It's deeper inside the combustion chamber in the B280 (shown here)
Compared to the EP head. I don't know what the B280E head looks like.
Then I cleaned up the rocker assemblies. Before:
After. I blasted the stanchions but only cleaned up the shaft and rockers with scotchbrite and brakleen.
Nice shaft! Again, 200,000 miles.
This little oiling hole is the cause of the B27/B28 failures... or one of them. Extended oil change intervals would create sludge which would clog these little jets, and these little jets were the only lubrication of the camshafts. In the B280, OCIs were reduced, oils were improved, these jets were enlarged (I believe) and there was a dam added to keep the camshaft sitting in a puddle of lube, much like in the B21/B23/B230.
Here's one I prepared earlier:
Did they make the 780 right hand drive?
Post pics. None of the original links work.