2028cc cam choice

[NJ John]

I picked up 90% of a complete disassembled engine. It had a carb only fire.
Case
Mark Stephens welded and ported heads
Berg cam (w120) with numbered lifters
H beam rods
78.8 crank
90.5 p/c
Berg heavy pulley, carb, linkage and breather tower
Basically, no rockers, exhaust, dist or carbs.

I have a ceramic coated 1 1/2 merged header and muffler and 40 dells to use. I sold my IDA's
I haven't measured the rod length, valve size or chambers, yet. But, I want a fun peppy engine. Occasional drag racing. I'm kinda thinking a 10 to 1 CR. I'll fly cut to get there.
Do I keep the w120 and get 1.25 rockers. Or go with something like a FK8 with 1.4's? (I have 1.4's sitting)
Open to all cam suggestions.
Can take pics of the heads.
Thanks
_________________
1973 standard, yellow, lowered, 3” narrowed front, 1600 blo-thru turbo w/single dell 15.4@86, so far
11.41 et buggy. Long gone
Let’s go O’s! Let’s go O’s!
https://www.youtube.com/@AirSpooledGarage

[UK Luke 72]

Measure valves, chamber cc and intake runner cc
Upload some pics.

Will give people far better chance of a meaningful recommendation.
_________________
2276 Beetle build https://www.thesamba.com/vw/forum/viewtopic.php?t=670744&highlight=2276+beetle+daily
2276 EFI Conversion https://www.thesamba.com/vw/forum/viewtopic.php?t=689172

[vwracerdave]

Use the W-120 with stock 1.1 rockers and the 1 1/2" exhaust. 34mm venturies in the 40 Dell's. 9.2-9.5 CR


Get 1 5/8" exhaust, FK-8 with 1.4 rockers, 36mm venturies in the 40 Dells and 9.5-9.8 CR and consider 92 or 94mm P/C's
_________________
2017 Street Comp Champion - Thunder Valley Raceway Park - Noble, OK
2010 Sportsman ET Champion - Mid-America Dragway - Arkansas City, KS
1997 Sportsman ET Champion - Thunder Valley Raceway Park - Noble ,OK
Featured in Dec. 2001 HOT VW's Magazine page 63

Watch my racing video's http://www.youtube.com/user/okvwracer/videos

[Dan Ruddock]

Build around the 1.4 rockers. Cam choice depends on the heads, carbs and exhaust.

Dan

[mark tucker]

fk8&1.4 should be good. my 2028 has the cb 2055 witch is 2 degrees less duration but .038 more lobe,I run 1.34 rockers on it. I would rather have the fk 8 with less lobe throwing the lifter less and more spring rate on that less throw due to the added ratio. I run 10.4 cr daily. Ive heard the web 86 series runs quieter...

[NJ John]

Turns out to be 40x30 valve. And zero fly cut. Still nice ports. After I took the gasket off I see their not welded. Just welding around the spark plug inserts.

_________________
1973 standard, yellow, lowered, 3” narrowed front, 1600 blo-thru turbo w/single dell 15.4@86, so far
11.41 et buggy. Long gone
Let’s go O’s! Let’s go O’s!
https://www.youtube.com/@AirSpooledGarage

[66brm]

Fk42
_________________
Aust. RHD 66 Type 1
Aust. RHD 57 Type 1 Oval

[Alstrup]

Hello.
The Berg version of the W120 is actually not a bad cam, but if the choice is open I would chose different too.
If we are still talking approx same rpm level, only better I´m thinking FK8, CB 2288 or even FK43.

But check those chambers, they look big, which indicates a rather low static CR.

T

[Vanillagurilla]

Fk8 at 10:1 with the 1.4s.

[Vanillagurilla]

[NJ John]

Wow I like those numbers! I always wanted a fk8, anyway. Now I have to get this thing going for summer. Or it’s a 1600 with ICT’s. I wonder what the dyno would say with IDA’s? Thanks for the info
_________________
1973 standard, yellow, lowered, 3” narrowed front, 1600 blo-thru turbo w/single dell 15.4@86, so far
11.41 et buggy. Long gone
Let’s go O’s! Let’s go O’s!
https://www.youtube.com/@AirSpooledGarage

[67rustavenger]

With 48 IDA's,
10:1 compression.
fk8 cam
138.7 HP @ 6500 RPM
133.2 torque @ 5000 RPM.

Webcam 86b will get ya,
48 IDA's
10:1 compression
140.4 @ 6500 RPM
133.4 torque @ 5000 RPM
_________________
I have learned over the years.
Cheap parts are gonna disappoint you.
Buy Once, Cry Once!

There's never enough time to do it right the first time. But there's always enough time to do it thrice.
GFY's Xevin and VW_Jimbo!

[mark tucker]

so...you guys have the flow## from those big chambered heads???so you can tell the hp....sweet!!!

[NJ John]

I’m fly cutting to achieve desired C/R. I understand that those numbers are way approximate.

There’s a local guy selling a new CB 2288 referred to as a FK8. Close enough.
I don’t see a CB 2055 listed.
_________________
1973 standard, yellow, lowered, 3” narrowed front, 1600 blo-thru turbo w/single dell 15.4@86, so far
11.41 et buggy. Long gone
Let’s go O’s! Let’s go O’s!
https://www.youtube.com/@AirSpooledGarage

[NJ John]

What’s a good deck height I should shoot for?
_________________
1973 standard, yellow, lowered, 3” narrowed front, 1600 blo-thru turbo w/single dell 15.4@86, so far
11.41 et buggy. Long gone
Let’s go O’s! Let’s go O’s!
https://www.youtube.com/@AirSpooledGarage

[vwracerdave]

The minimum safe deck height is .040" I would not go over .070". All the anal expert say you must run exactly .040" or the earth will stop rotating and your engine will melt to the ground.
_________________
2017 Street Comp Champion - Thunder Valley Raceway Park - Noble, OK
2010 Sportsman ET Champion - Mid-America Dragway - Arkansas City, KS
1997 Sportsman ET Champion - Thunder Valley Raceway Park - Noble ,OK
Featured in Dec. 2001 HOT VW's Magazine page 63

Watch my racing video's http://www.youtube.com/user/okvwracer/videos

[Alstrup]

[ac509]

[Alstrup]

That he did. I guess I got myself a new title to add to the business card

[NJ John]