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  #166 (permalink)  
Old 08-24-2010, 11:59 PM
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This is me me having a great day however a piece of metal from the grinder had just got in my eye and I was mad about it a little bit. I later used a big magnet to get it out. Maybe dragging a magnet across my eye was a bad idea, but it sure felt better right away. I tend to over simplify apparently.

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Last edited by Dirty Biker; 08-25-2010 at 12:28 AM.
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  #167 (permalink)  
Old 08-25-2010, 12:44 AM
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or is it Semper Fi? I always thought I could make a really great Marine.
I do tend to over Semper Fi things a bit.

Last edited by Dirty Biker; 08-25-2010 at 01:08 AM.
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  #168 (permalink)  
Old 08-25-2010, 05:58 AM
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crash???

Anyone else having computer trouble when logging on to this thread?
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  #169 (permalink)  
Old 08-25-2010, 06:20 AM
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Quote:
Originally Posted by Dirty Biker
Would somebody desktop dyno this for me?
If you want an accurate estimate, techinspector1 has said the following is needed:

Quote:
Originally Posted by techinspector1
DYNOSIM REQUIRED DATA....
Bore
Stroke
Rod Length
Cylinder head flow, intake and exhaust 0.100" through 0.700" or whatever the mfg gives for range
Intake valve diameter
Exhaust valve diameter
Static compression ratio
CFM, type of induction (2-bbl, 4-bbl, TBI, TPI)
Intake manifold type, mfg (single 4-bbl, two 4-bbl, one 2-bbl, three 2-bbl, individual runner Weber, mechanical fuel injection, low-rise, high-rise, tunnel ram, dual-plane, single-plane, part no. if you have it.
Exhaust system (be specific, primary tube size if long-tube headers)
I have quite a library of CompCams (give me part number, not grind number) in my files, but if you are using another mfg, I'll need type (flat, roller, solid, hyd.), intake valve lift, exhaust valve lift and the following timing info and at what tappet lift the info is valid...(0.006", 0.050") I can calculate from 0.020" if I'm given enough information, but again, that takes my time.
Intake opens ______BTDC
Intake closes ______ABDC
Exhaust opens______BBDC
Exhaust closes______ATDC
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  #170 (permalink)  
Old 08-25-2010, 11:59 AM
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Quote:
Originally Posted by cobalt327
If you want an accurate estimate, techinspector1 has said the following is needed:

DYNOSIM REQUIRED DATA....
Bore 4"
Stroke 3"
Rod Length 6.25"
Cylinder head flow, intake and exhaust 0.100" through 0.700" or whatever the mfg gives for range I don't Know what this means. Can somebody help? I would use stock single hump chevy heads at first then maybe try 1996 and up vortecs. There is 062 heads for sale now for 150$ on cl
Intake valve diameter 1.94
Exhaust valve diameter 1.5
Static compression ratio 10:1
CFM, type of induction (2-bbl, 4-bbl, TBI, TPI) 400 cfm, I think. I have the two barrel carb and the single barrel fish carb. I think they are both about 400 cfm, maybe a little more. I don't know if the motor would ever breath enough even at high rpm to need a quadrajet.
Intake manifold type: Dual plane stock two barrel manifold, I also have a dual plane four barrel manifold from a 350 and a quadrajet, might try it both ways to see if it makes any difference
Exhaust system: small diameter long tube headers, single exhaust pipe and no muffler say 1.5 inch primaries and 30" length
CompCams 12-300-4 [49] There may be a better cam, I didn't call them.

Thanks Alot!
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  #171 (permalink)  
Old 08-25-2010, 12:07 PM
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Quote:
Originally Posted by Dirty Biker


This is me me having a great day however a piece of metal from the grinder had just got in my eye and I was mad about it a little bit. I later used a big magnet to get it out. Maybe dragging a magnet across my eye was a bad idea, but it sure felt better right away. I tend to over simplify apparently.
I have also used a magnet to get steel out of my eye , but I didn't drag it across my eye . I decided I'd rather use safety glasses than a magnet after that though .
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  #172 (permalink)  
Old 08-25-2010, 03:15 PM
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The comp can part number for the factory muscle cam that is sposta be the same as the original 302 solid lifter cam is #12-107-3, It would be good to compare it to the rv cam in the desktop dyno if I could.



I learned that eye glasses or sun glasses are not the same thing as safety glasses, stuff still gets in there. I once went to the doctor and he asked me if I do alot of welding and grinding and stuff, I said "Yeah why?" he said "Your contact lenses have metal shavings in them, they may have saved your eyesite." So yeah, wear the dumbest looking safety glasses you can.
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  #173 (permalink)  
Old 08-25-2010, 03:20 PM
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I found that out the hard way as well. And always wear a breathing mask when you pull out the cartridge rolls, otherwise you'll be blowing out cast iron boogers for about a week- can't be good for your lungs.

BTW you need to think of a cam with much smaller seat duration if your after mpg's and you can't run that high of compression in that engine with that HUGE load. Otherwise it'll sound like a can of rocks- until you blow a piston.
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  #174 (permalink)  
Old 08-25-2010, 04:17 PM
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Man turbolover I thought that 240h grind was the mildest torque cam they had, Which one do you think might be better? Oh maybe you were thinking the stock chevy 302 cam that I just posted? Yeah I agree that would be the bad for mpg for sure but just to compare the two could be useful.

what about that guy trying to use the saab turboes on his ride? There is a saab turbo car at the u pull it here in Louisville, the turbo was off already even. i was checking it out thinking the same thing when I read that guys post. How do you use only one big turbo on a v8? I know people do it but it kinda makes more sense to use one small one on each bank, maybe on some super shorty block hugger headers or something.
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  #175 (permalink)  
Old 08-25-2010, 05:30 PM
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according to camquest6, you pick up 50 ft/lb more torque with vortec manifold on a stock 283 on any cam. That is amazing, 400+ ft/lb with a 283 at 2000 rpms? It must be wrong tho.
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  #176 (permalink)  
Old 08-25-2010, 07:42 PM
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Camquest is just a toy program, ok for comparing cams for power trends, but don't put much stock in actual hp figures it gives you. After all, it is a marketing tool for Comp Cams, to get you to buy their cams. I have it but only use it to compare power curves between a group of cams I think will fit the bill for an engine I'm spec'ing out at the time.

It's not even close to a true dedicated dyno program like DynoSim or Performance Trends Engine Analyzer. It is way to simplistic about manifolds, heads, and exhaust...just off the top of my head.
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  #177 (permalink)  
Old 08-25-2010, 07:57 PM
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Quote:
Originally Posted by ericnova72
Camquest is just a toy program, ok for comparing cams for power trends, but don't put much stock in actual hp figures it gives you. After all, it is a marketing tool for Comp Cams, to get you to buy their cams. I have it but only use it to compare power curves between a group of cams I think will fit the bill for an engine I'm spec'ing out at the time.
Do you have an opinion on the old Dyno 2000 software? I don't even know if there has been an upgrade to that. I've been using it a long time.
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  #178 (permalink)  
Old 08-25-2010, 08:52 PM
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Quote:
Originally Posted by Duntov
Do you have an opinion on the old Dyno 2000 software? I don't even know if there has been an upgrade to that. I've been using it a long time.
No, never have used it. I have the Performance Trends, but it is a few update versions out of date. The newer ones are just easier to use than my old version, but I am familiar with what I have and haven't upgraded. It did teach me a whole lot when I first got it, I played with it all the time to get familiar with it.
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  #179 (permalink)  
Old 08-25-2010, 09:26 PM
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software

I had a similar experience with Dyno 2000. I still rely on it. Generally it very close to the actual results of a build.
I Googled it after I ask the question and found that there are thousands of free cam file downloads online now which was my only complaint with it. Now I can load it up with specifics and get closer. Discovered it 5 years back from some of my contacts at Speed. Then there were several Crew Chiefs secretly using it. No well kept secrets in the break room. You might be able to download it like freeware now. It was expensive years back.

However I doubt it will indicate that a big bore small stroke will be efficient in a big truck.
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  #180 (permalink)  
Old 08-25-2010, 10:37 PM
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Would you guys email me a copy of the program of any of those sims pretty please? dirtyrottenstinkingbiker@yahoo.com
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