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Sun Nov 08, 2009 10:33 pm

Friend has a 1915 that was built for his light (1200lb) rail. Ended up selling the rail and putting the motor in his sons Baja (Class 5 car), lost a main and is rebuilding.

Engine specs: 1915 with 40 x 35.5 valves, dual 40 Dellortos

He had a w-120 cam in it with 7.5 compression(or less ccing head) :roll: . 1.1 to1 Rockers. On the rebuild it will be up to about 9 to 1 the 120 cam has some pitting in it so hes getting a new one.

QUESTION:

Should he stick with the 120 or is there a better cam to take FULL advantage if this setup (and heavier car)??

Looking to make the most power under 5500 rpm

Thanks in advance

Sun Nov 08, 2009 10:45 pm

engle 120, 1914, 9-1?
In my opinion the web #110 or #163 are both better than the 120. (smoother at least)
The 163 may have better low end and about the same top end.
The web 110 on a 105 lobe center might be better overall!
these are street cams, they can be used with 1.25 rockers for more lift if needed.

If the thing is mainly for off-road you might use an engle vz-15.

Sun Nov 08, 2009 10:47 pm

I believe the w110 or the cb 2242 makes power to that range with 1.25 rockers. At least that is what ALB recommended for my 1915 build.

Sun Nov 08, 2009 10:53 pm

the rest of the motor sort of soaked up his $$$ so he is sticking with the 1.1 rockers... Keep em cumming guys! :D

Mon Nov 09, 2009 12:01 am

i was told by a guy that now build v8 drag motors that use to race vw back in the day to use a vz 35 in my next hi pro motor ...... i dont know if this the one for your buddy or not but when i tear down my 2180 ima try ths cam out....

Mon Nov 09, 2009 12:02 am

If he's using the 1.1 rockers go with the vz 15 cam.

Mon Nov 09, 2009 5:22 am

VZ-25 with stock 1.1 rockers.

Mon Nov 09, 2009 10:06 am

don't the VZ cams Require sleeving the lifters?

Mon Nov 09, 2009 10:23 am

midtravelmidengine wrote: don't the VZ cams Require sleeving the lifters?

VZ cams beat the lifter bores pretty good.
Resleeving is a good idea or run a cam with a less dramatic ramp angle.

Mon Nov 09, 2009 4:49 pm

midtravelmidengine wrote: don't the VZ cams Require sleeving the lifters?

No. My 1915 ran for 21 years as Dad's DD with a VZ-25 cam. Its lifter bores still look brand new. Dad did cut a groove in each lifter for extra oiling.

Mon Nov 09, 2009 10:49 pm

I have a vz35 in my 2275.Buggy is 1280 pounds with a close ratio 002.It pulls from 2500 to 7k pretty smoothly.

Motor is alm case
44s
cb h beams
ported 40x35s
8.9-1 compression.

I was originally going to use a vz25 in my 1914 and upgrade the rods but i broke a cylinder cleaning them and decided to just build a 2275.

Sun Nov 15, 2009 10:55 pm

here are some cams that are in the running, let me know what you think...

Current Cam:
w-120___253*___.395"___.435"___108*

CB Cams:
2240___248*___.430"___.473"___107*
2243___250*___.424"___.466"___107*
2250___256*___.420"___.462"___107*

Web:
163____249*___.383"___.422"___108*
110____256*___.395"___.435"___108*

Engle:
VZ15___250*___.435"___.478"___108*
VZ25___256*___.429"___.470"___108*

It appears that the vz15 actually has a more agressive ramp rate than the VZ25, 2250 & 2243...

My first choice would be the Eagle 2250, unless the duration is losing too much bottom end, then my choice becomes the 2243, a bit less duration than the 120 but with more lift for the 1.1 rockers and is a bit less agressive than the VZ cam so maybe no sleaving?????

What do you think? Anyone using the eagle cams?

Sun Nov 15, 2009 11:13 pm

Wow, you sure have done your homework! I have used the 2250 and 2241 cams. Both degreed in with 6-8+ more degrees than CB lists.
The 2250 came out to 262 degrees when I checked it. It has some pretty steep ramps. It kicked in hard at 3500rpm in a 2165, 9.5-1cr. It may be more than you bargained for. Webs cams have checked perfect to the degree every one I ever ordered. Engles cams have all been a few degrees short.
If you don't want to use one of the vz cams, the web 109 or 122 or 125 look just as mean as the 2250, and I bet you lifter bores would survive.
9-1cr might be ok for the vz-25, but these more radical cams may need more.

Sun Nov 15, 2009 11:21 pm

Quote: Engles cams have all been a few degrees short.

I've heard that more than once... :roll:

Quote: Both degreed in with 6-8+ more degrees than CB lists.

WOW, pretty crappy, then maybe the 2240 is more the range?
Was the lift off too?

Sun Nov 15, 2009 11:50 pm

I believe lift was about right on Cb's cams, it might just be luck, but both the 2250 and 2241 had a few extra degrees. How high do you plan to rev this thing?

Mon Nov 16, 2009 11:17 am

Looking to make the most power under 5500 rpm

Mon Nov 16, 2009 5:30 pm

anyone else have a recommendation? jake, john, dave??

Mon Nov 16, 2009 6:06 pm

You must match the cam to your valve springs! If your heads are already cut for dual springs and you continue to use them, then you can use the 120+ and equiv. cams. If cut only for singles, don't go more than an Engle 110/Scat C35.

Mon Nov 16, 2009 6:14 pm

I really like the Web 86B or 86C in a 1914.

86b .575/.575, Dur @ 0.050 300°/300°, 260°/260°

86c .585/.585, Dur @ 0.050 310°/310°, 272°/272°

Mon Nov 16, 2009 6:21 pm

I do quite a few of 1915s for off-road, and for single spring heads with 1.1s the 218 Web works great...LOTS of torque, and all done by 5500.... .455x280 I even have them ground on 105 centers for a little more low end....