2 Questions - Cam choice / Mig welder

[davejohansen]

2 new questions for the guru's.

1. I have been planning a 90.5 X 76mm stroked engine, somewhere I read a Eagle 110 cam was a nice fit with this combo. Neil has a 100 and a 120 cam for sale. How much difference are these cams? Looking for some power and torque for the bus but am not going to be racing it.

2. For the guys doing their own body work, I can't quite seem to justify buying a gas mig welder. It's not the welder so much as the bottle rental for the argon gas. How does the fluxed core wire do for body work, is there much difference after buffing the flux off? Gasless welder also sell for a bit less as well, if the gas doesn't make much of a deal then I'd be better off.

Dave

[commercialair]

I'd stick with the 100. The 110 and 120 won't reach their full potential until you hit the higher RPM's. Keith has done some research into this and I'm sure he'll know more.

As far as MIGs go, do yourself a favour and spend the extra $$ on a gas set-up. Flux works OK if you really clean it up before fill and prime, but the argon really gives you a clean,solid weld. It's easier to control and from what I've seen you can get proper penetration on a lower heat setting and that means less warpage.

Chris

[riffraff]

I'm hardly qualified to offer cam advice, from what I've gleaned in my research, for a bus, I'd go with the 100. It is just a bit lumpier than stock with a little more duration. You'll make up for the additional duration with the added displacement. If you add 1.25:1 rockers, you should have a pretty good set up with decent torque and top end.
You may want to confer with someone who actually knows of which they speak regarding mating a used cam to new lifters and the pro's, con's and method of break in.
If you don't get that cam, I will for my 1776.

[BUSNIT]

Get a gas welder. For the amount of welding your going to be doing and the amount of gas you'll use, It's worth renting a bottle. It will take you a couple of years before it's empty. You don't have to pay unit you re-fill it. flux core wire welding is for backyard projects that you don't care about,it's not the proper way to weld sheet metal and your welds will start rusting almost instantly and structurally weak. hope that helps.

[bullyboy]

You welcome to come try mine out Dave.
I have used both and I won't go back to the melted metal dance you end up doing with the flux cored stuff.

Try posting your motor question on the Cal look forum just to see what the guys come back with.
Just tell them what you want it for and what you want it to do.
There are some pretty good engine guys on there with a ton of experience.

[bretto]

its about $160 to fill the bottle, it lasts, well depeneds on how much you weld, and how much as you use while welding. if you "penatrate like ron jeremy" and use tons of gas expect to fill it sooner than later. i would never use flux. i've personally never used it but i've seen the aftermath

like my pops says to me, do it once, properly...you hack.

[davejohansen]

All the mig gas dealers around me want to rent the bottle plus sell the gas. Rent works out to about $120 a year. There is some places the will sell the bottle. Anybody have a source to purchase my own bottle? I know that gas is a much nicer weld, I have used the mid at work like it way better than the stick welder.

Dave

[bretto]

i "rent" my tank as well. that ensures you that if the tank ever goes bad for any reason you get a new one. makes sense.

[bullyboy]

We bought ours from Western Canada Welding Products.
Dad used to work for them, so we got the cost plus deal. I think it was $185 or so. You own a cylinder but when you return it they give you a full one and you're done no monthly rentals.
I have been buzzing along with this cyl for over a year now.

[1970bayboy]

No No NO,
You guy's are all leading him down the garden path , flux core welders are the best welders to use for all jobs . No bottle charge , no filling charge just the wire.

By the way if you are looking for one I have a gas-less MiG for sale CHEAP ;D, cuz I'm going with a gas one..............lol

Joby

[davejohansen]

Thanks for the advice guys

Gas welder on order and according to a few guys on the cal look forum the 110 cam is the way to go. Of course they also said since I'm stroking it I might as well go for 78 or 82mm stroke.

Dave

[riffraff]

Remember that you are going to be pushing a bus around and not a beetle. Torque should probably be more important for you than HP.
A 110 will give you nice top end, but you will sacrifice bottom end to get it.

[davejohansen]

According to a couple of guys on cal look forum they claim the 110 is good for low end torque. I had told them what I was putting it in and one of them had a similar engine with the 110 in his bus. He claimed to be really happy with it. However, as I also seem to change my mind who knows what will get installed.

Dave

[bullyboy]

keep prodding them for more info Dave.
They should be good for recommending heads, crank, rods, carbs, etc.
There are lots of people like Art on there that don't mind helping us newbies make a better educated choice in components.
Stroker = Torque