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Sun Aug 21, 2005 8:47 am

i want to build a 1776 SP this winter for my '66 westy. probably going to go with the Scat rebuild kit for cost and ease. i already have a set of NOS dual Solex bus carbs that ill use. i am confused about the characteristics of cams. whats the driveability/mileage/torque pros/cons for each cam? is the 110 just better for the larger 1776?

thanks,
Bob

Sun Aug 21, 2005 9:05 am

CAMS WITH GRINDS FOR 1.1 OR 1.25 RATIO ROCKERS
Engle P/N Lift Duration Cam Lift Dur. @ .050 Lobe Cent.

W 100 .420" 276 .383" 236 108

W 110 .430" 284 .392" 247 108

Bob,
They're both good choices for your application and can be used with ratio rockers (like 1.25's) with good results. They spec out very close and with your choice of carbs (BTW ... what heads will you run) you should have good response and mileage.

Sun Aug 21, 2005 9:34 am

Here's the 1776 that I built and was overall very pleased with the results of...mild, but very fun to drive when compared to the 40 horse in my daily driver! :-)

Stock VW crank
Engle 100 cam
Genuine VW 1.25 ratio rockers
stock-valve ported/polished heads with semi hemi cut (this is likely to change soon due to recently spotted issues with machine work done to the chambers)
dual Kadron carburetors
S&S Headers 1-3/8" heater box header with single QP
Berg full flow system with filter and stainless lines
doghouse cooling
009 with Pertronix
7.8:1 compression

Very responsive, and not temperamental at all. Ran like a champ and pulled hills from a bog like a dream. For small carbs and stock valved heads--which it sounds like you're likely to run--I would recommend the Engle 100 cam. The 110 is good too, but the 100 is good for more bottom end grunt, something that's good to have in a daily driver. Good luck! :-)

Sun Aug 21, 2005 7:44 pm

The W100 would be better with your single port heads. With those heads you are shooting for low-end grunt and the W100 does that better than the 110.

Mon Aug 22, 2005 12:17 pm

Bugnut68, im building almost an identical motor to your's in a month, minus the ratio rockers. I have a set of kadrons im putting on the engine and im running the compression ratio at 8.5, if there was anything you would of done differently on the combo what would it be. Did the motor meet you expectation or exceed???

Here's the thread to the motor specs: http://www.thesamba.com/vw/forum/viewtopic.php?t=129565&highlight=

Mon Aug 22, 2005 12:43 pm

I have run 100 cams in a couple of busses and was pretty happy with them. One was in a stock carbed 1600DP, and the other was in a 1776DDP with dual solexes.

Mon Aug 22, 2005 1:44 pm

i live in cleveland too..... 8) wonder if i have seen you around.....

i have a 71 super...... 2109cc turbo efi chargecooled engine going together....

i would recommend the engle 100 if you stick witht he SP's but i would also recommend the dual port heads instead of the sp's.... we all know the dual ports flow more therefore more power..... but i am not sure of what cam i would run in a bus...... it depends on what you are trying to do....

i had an engle 110 with 1.25 rockers in my 1915 and it was ok but that was a bug that i liked to beat the piss out of? so i wanted more...... the 2109 turbo engine will have an engle 120 and 1.25 rockers.......

Mon Aug 22, 2005 2:36 pm

thanks for the replies. sorry about the dumb question, but what do ratio rockers do? i know a lot of people run them on bigger and stroked motors, but why?

CHAZAVW, i live in Berea and drive a sand and palm green split.

Tue Aug 23, 2005 7:39 am

she's really pretty..... what are you trying to do??? what are your goals???

are you gonna try to re-use parts or what?

there is a guy here.... jeff geisen..... he was going to put together a SP 74mm crank and machine in 88mm cylinders and an engle 100 cam.... in his bus.... we had talked him into going with the DP heads..... i also mentioned to him that the 76mm chromoly crank from cb performance was the same price as a 69mm crank..... i dont know what he did.... he said he was not in a rush to complete..... but here is the post.....

http://www.thesamba.com/vw/forum/viewtopic.php?t=117991&postdays=0&postorder=asc&start=0

my fiance is going to bwc for her masters... i live in cleveland and work in cleveland.....

when you change rockers.... it adds lift to the cam.... more lift means more air flow..... engines love lift... especially turbo engines!!!

here goes the specs for the engle 100 and 110 cams..... but i would measure the real lift at the vavle with a dial indicator just to double check everything...... never know what you are getting these days..... but i have personally never had a problem with engle......

cam# value lift advertised duration cam lift duration @.05
100 .420 276 .383 236
110 .430 284 .392 247

now if you take the value lift of .420 or .430 and divide by 1.1 you will come close to the .383 and the .392. the 1.1 comes from the stock size ratio rockers.....

but if you take the cam lift of .383 or .392 and mutiply it by 1.25 you will get .479 and .490. the 1.25 mutiplier comes from the new size ratio rockers.....

the only issue that i could see in the future if you change cams, is i would surely change the lifters and the push rods...... i know it sounds crazy but i would get a set of pushrods that you can cut to fit, i.e. - custom length....

yes you could probably use stock length push rods and put shims under neath the rocker arms..... but you are looking for problems.... that is really a band aid......

good luck..... maybe i will see you around......

Tue Aug 23, 2005 5:53 pm

auslander wrote: Bugnut68, im building almost an identical motor to your's in a month, minus the ratio rockers. I have a set of kadrons im putting on the engine and im running the compression ratio at 8.5, if there was anything you would of done differently on the combo what would it be. Did the motor meet you expectation or exceed???

Here's the thread to the motor specs: http://www.thesamba.com/vw/forum/viewtopic.php?t=129565&highlight=
About the only thing I would change (and might change real soon if the $$ is allowable) is the semi hemi heads...I just don't like the idea of 38 degrees of advance... plus the shop (a well-known one, I'll just say that) cut into the spark plug holes I discovered when I pulled it apart to rering it recently...I'm not going to name the shop as I bought the heads from someone who had them done, and any machine shop can have a bad day or make a mistake, but I'd rather stick with VW chambers at least on a stock stroke motor. Just my thoughts.
Even though, the engiene runs real responsive and gets good mileage. Overall, other than the hemi heads, I wouldn't change a thing...maybe eventually bigger carbs, more cam...ah heck, here we go...;-)

Tue Aug 23, 2005 10:54 pm

I thought that the single port heads are good for torque? This is what is needed in a bus. Torque is used to get going, and it is used to keep the bus going on the highway, ep on hills.

Also, make certain that you get the kads ported for vacuum and run either an SVDA or a vacuum advance Mallory Unilite. This too will help the bus to be a lot more driveable, and help with lower temps and better gas mileage. Even Webers and Dellortos benefit from this.