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  #16 (permalink)  
Old 03-17-2013, 09:40 PM
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Quote:
Originally Posted by cobalt327 View Post
fb, the ONLY appeal your "one size fits all", no-brained "advice" has, is that it is easy for you to post.

To the OP, I say: It is up to YOU to sort through the BS. It is up to YOU to do your due diligence. I cannot do anything more than supply the info. The rest is up to you and to how much desire you have to do the job right.

This is BS.. This is not one size fits all recomendation.

I do not post this just cause it is easy. This IS WHAT THIS SPECIFIC MOTOR NEEDS TO RUN CORRECTLY.

If this was a manual transmission car I would give other different specific advice. IT is not.

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  #17 (permalink)  
Old 03-17-2013, 11:54 PM
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More timing does not always (or even mostly) mean max timing (i.e. locked timing) all the time. You are clueless. The engine can- and WILL- detonate w/max power timing if it's under a load- that's the reason for having a curve, otherwise there wouldn't be mechanical advance distributors.

You are trying to turn every engine you post to into a drag-only deal. Too much timing, too much cam, too much CR, too high stall speeds, and top it off w/305 heads on everything. Unless this guy wants a 1 trick pony- like your advice- he needs to do some research. The ONLY thing that might save the OP from grief is it's "only" a 20% street deal. But you give the same advice, regardless if it was 100% street, so still a 1-trick pony.

You can claim "BS" all you want- the REAL tuners know better.
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Old 03-18-2013, 12:02 AM
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Instead of all your whining and crying, let the man decide for himself. In the meantime, take a look at what Demon has to say about initial timing vs. duration @ 0.050" lift (select the Radical Cam Profile tab): http://www.demoncarbs.com/Tech/DemonSelectionGuide.asp

Last edited by cobalt327; 03-18-2013 at 12:23 AM.
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  #19 (permalink)  
Old 03-18-2013, 12:59 AM
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Give it what it wants to run well (instead of employing some statement based on a belief or blanket statement
like all engines need a timing curve,,, etc .... and it will run well.

The engine will show you what it prefers for idle timing.

You will find that the locked timing works the best possible.

Colbalt has resorted to throwing around insults. Cause he cannot state any rational reasons or show any evidence why the locked timing on THIS motor will not work best.

If you want to create a short 8deg timing curve go ahead... But you will find the locked timing is just better anyway.

Not sure how ported 305 heads got into this discussion....but I do get a lot of flack and BS over that from PEOPLE THAT HAVE
NEVER ACTUALLY DONE IT!!!

Funny,,, the people that have actually done it always report very positive results.
Another subject..

Last edited by F-BIRD'88; 03-18-2013 at 01:18 AM.
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Old 03-18-2013, 01:15 AM
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Again if this engine does have a true 11:1cr, the idle timing will not be the cause of any possible engine damage.

But damage from running 91 octane AT WOT at full performance timing is a possibility.

The (lack of) quality of the fuel will be the undoing. and it will occur at WOT.

Watch the WOT timing or get better gas or lower the cr.

The highest engine octane requirement is going to occur at around peak engine torque rpm @ WOT
That is when cylinder pressure and heat is highest.

Cheap gas is not a good deal.
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Old 03-18-2013, 01:19 AM
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It's really very simple- an engine that can use a timing curve is better equipped to handle a variety of situations than an engine w/o a curve. It negates any need for an ignition interrupter. It protects against detonation when under a load at low rpm.

The difference is in philosophy. Some start safe and work upwards from there. Some jump in head first w/o caring what the results may be. After all, you will be nowhere to be found if the engine is scattered.

EVERY ENGINE/COMBO/VEHICLE IS DIFFERENT. Blanket advice to always lock the timing is not good advice- it is only EASY advice. And that sort of "advice" only gets any play because there are a few guys who prefer easy over correct.

But what's this I see? "If you want to create a short 8deg timing curve go ahead"?? At least you finally admit that a curve is possible, and you'd be surprised at just how much curve you can get if you actually work towards that end! If you think a curve has no use, then I cannot help your ignorance of the facts.
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Old 03-18-2013, 01:21 AM
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I'm done w/advance curve advice unless the OP asks- I do not want to see the thread locked. I'll let the facts speak for themselves.
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  #23 (permalink)  
Old 03-18-2013, 02:28 PM
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If you are racing, but you want to limp around on the street. A beginner would find locked timing works well if you have a high stall and track gear. Then you could also go from light to light around town.

From the majority of the builds, I would imagine from the numbers they target, This is what they want. Either that or they have unrealistic goals. It seems people want more than the RPM smallblock. That is a pretty hot 350, my opinion at least.
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  #24 (permalink)  
Old 03-18-2013, 02:35 PM
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The phenomenon I am referring to above isn't detonation. It is spark knock.
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Old 03-18-2013, 02:47 PM
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Still it is going to be caused by load.

Thread locked? Different oppinions and ideas should help people decide what is right from a collective pool of ideas .

I think locking or a short 10 degree curve will work. It will get them started and they can learn more.
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