W120 favorite cam? why?
Martin S.:
Quote from: vwfye on February 25, 2021, 00:21:38 am
Quote from: Bewitched666 on October 07, 2009, 07:06:53 am
vwfye,
what combo makes 1934 or is it a typo? ???
76x90 NPR
There was a local volume engine rebuild shop going out of business a few years ago who had a set of NPR pistons/cyls on the shelf. I should have grabbed them! 8)
Karlos99:
Mate of mine has a w120 in a 1955cc bus motor with 44s and it quite a nice drive I think.
Brian Rogers:
Seriously looking at this cam for a 2165 in a vert. Carbs will be on the small side, 40 Dells, 34 vents. Not looking for a race engine but a fun freeway cruiser, stop light gran prix.
Garrick Clark:
I've just built a 2007, 120 cam, with 44 webers, stock ish heads, it's more of a driver than a racer, especially with the 3.88, as that seams to tame down the acceleration.
It had 1200 gearing before, which made for a wound up driving experience
Torben Alstrup:
I saw ONE guy with ONE engine some years back at a JPM Dynoday that for some reason made great power with a 1914 displacement and the W120 cam. Thatīs it.
Generally, in smaller engines it works alright, nothing special, but alright. In large engines, I for one canīt make iit work. I have been able to pull some nice (Web cam like) torque with it, but the hp stays in the garage.
I once built a 2165 out of parts from 2 large boxes. My choice was the W110 or the W120. Naturally I chose the 120. Heads were GO3 041īs which had a giant ledge above the seats on the intake. I got seats installed so the ledge disappeared and ended up with 42 mm valves on a nice 90% seat. I performed a VERY nine port job on them. 9,5 CR topped it off with 1,25 rockers, 40 mm alfa Dells with detailed carb tops and 34/38 Berg style venturies and a Super Comp EVO exhaust. Resuls were 143 hp at around 5300 and 225 Nm torque. Torque was good. Almost brutal down low, but there was no "fun" above approx 4500. Even tried with 44 IDFīs but it didnt produce one bit of power or torque. The guy ran the engine for 1 season. Then decided to swop the cam on my recommendation to a W125 (He wanted to stay Engle)
TOTALLY DIFFERENT ANIMAL! It picked up everywhere but below 2000 which was quite OK. Actually made it more soft to city drive. Now it pulls 157 hp @ 5600 and a very respectable 230 Nm torque
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