web grind #110 cam opinions

it's been suggested to me by the local Kz guru that I'll have alot of detonation with the 1075 10.25 CR kit I bought using stock cams here in Phoenix hot weather. he's had good results by fitting hotter cams to help with this and suggested this Web grind #110 .375 lift. anyone here use this combo, and what is the characteristics of this combo. using pods and 4-1 exh, bs34 carbs.

You need to find out what the closing degree is on the stock intake cam. Then compar it to the closing degree of the new cam. For instance the stock cam might close at 26 degrees abdc, the new cam might close at 39 degrees abdc. Which mean that it is closing later, bleeding off cylider psi and that will lower your dynamic compression.

Tell us what your dynamic psi is right now. (cranking compression) Also what kind of fuel you are running.

This might end up to be a good wright up.

I am not sure as to what the specs are on the cams, but I would think running higher octane gas would solve the problem, may even play with the timing just a bit

I'll find the specs to verify that, but that's the idea to bleed off the psi. head is completely rebuilt from APE, and in process of building up engine now so I don't know have the psi #'s as of yet but this exp. shop owner said it would be very high as the entire reason for the new cams. alot of detonation even with 91oct....I don't mind running premium price fuel but I definately need to end up with a package running well on pump gas.

using dyna S, he notes the mech advance is full after 1800rpm so no way to adjust there unless I go up to the dyna2000, and I'd rather not. Web doesn't have any detailed info on their website so hopefully someone who uses these sticks will chime in with what they know....pretty please.

Couldnt you just get heavier springs in the advancer to delay the advancer?

I am running a wiseco 1198/10.25 setup with
MTC 410/300 cams.On unleaded premium from
Amaco and other top gas stations,I only
get a little pinging at low rpm if I load
the motor too much.My 1170 motor was the same
way and a tear down 30,000 miles later showed
no damage from detonation.

web 110 is a fantastic street cam

the detonation issue has nothing to do with cam lift duration or opening / closing degrees.

jetting,timing, carbon build up, sharp edges on valves,and compresssion are the causes of the improper combustion

Steve at Mid city cycles is a good local guy to speak to. (phx area)

I have a 1105 10.25-1 piston KZ with the 110 web cams I set the cam timing as close as we could to get minimun clearances between piston to intake valve(.080) and valve to valve(.035) during overlap. my ignition timing is retarded at the dyna plate. but the advancer is stock 87 octane fuel no ethanol

103.5 In 104 ex lobe centers but those specs will vary from engine to engine

cool topic.I do have a 1200cc which blew cold 170 psi (300 miles ridden) with stock cams.After putting in 110 webcams it dropped to 130 cold engine.
I had pinging with stock cams and stock 28mm carbs, I still have pinging with the 110 grind. It dissapeared with 130 main jets and needle fully rised but the it starts to sputter in mid so thats another problem....
I still had pinging with 98 octane!!! (shell formula F1 gas).
It is indeed getting your carbs well tuned.
with these cams set at 106 and 108 it starts pulling at 7000 up to 11000 ( which I had on a test drive in fourth gear)
i changed lobes to 110 and 110 which was really shitty. It was like driving a stock 900 and no hard pulling engine.
Then changed to 104 and 110... gave much more torque at lower rpm's. Now want to get the ex. back to 108.
remember this is with stock 28mm and large pipes in two little restricted mufflers

set exhaust cam to 108 lobe. measured compression is 160 psi cold. Lowered needle one groove and is driving better:woohoo: