The deeper gears will make more torque to the ground in both scenarios along with more rpm at cruise speed.
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- Thread starter Dartswinger70
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A lot of dyno operators will start at 3000 rpm or so.
The cylinder heads are miles apart.yes, the dreadful small bore and valves. Hmm, wonder what size valves and bore the LS 5.3 have ????Don't seem to bother the chebbie guys one bit.
You are correct. For me it depends on where the wide open throttle rpm range will be. On engines with high rpm ranges that will only be opperating at wide open throttle in those higher rpm ranges the starting point may be even higher. Usually race engines.
I get it, but still the point is legit... bore doesn't stop the use of the engine.
Not necessarily true a smaller engines can have more under the curve power.
Your problem is you don't seem to know what a powerbands is.
True, but we also don't drive full throttle all the time, your engine only makes the power required to do the task at hand (up to it's full throttle max) for normal driving a /6 makes way more than enough, it's not to often you have to full throttle a /6 to do normal driving.
You assume that's all I care about, and again taking my points out of context.
With the same parts?
Gears aren't magic, they don't make power or engine rpm, they only allow you to optimize what potential an engines got.
Eg.. take a rock crawler say your engine makes peak power at 5500 rpms and want that power at 1 mph with 40" tires gonna need like 655:1 gear ratio, sure that engine gonna pull hard to 1 mph but quickly run out of rpm (less than a blip of second). Point is you can't keep stuffing more gear behind an engine for more performance if the engine doesn't have the powerband to take advantage of it.
and here we go. racing dynos again and talking about power under the curve.
*makes wanking motion*
*makes wanking motion*
Yep, There's always those maximum rpm/horsepower guys out there. Rarely does that even need to be discussed in a 318 thread. We don't need (or care) about Maximum horsepower at maximum rpm unless we are racing our teen or building a 318 race engine. (which isn't very often)
Good point. That's why two engines built similarly with similar peak hp rpm will respond similarly to the same gear changes. The difference is that the larger cubic inch engine will have more power below peak hp.
Yes, but were talking different displacements 318 vs 340/360+ which usually means two engines of similar peak hp will generally operate (powerbands) at different rpms.
Not if they if they operating at different rpms, you must know a 500 hp 318 at 7,000 rpms needs more gear and stall than a 500 hp 408 needs at 6000 rpms right?
Not necessarily, you know every 500 hp engine also makes, lets start at 200 hp,201,202,203..300,301,...400,401,402........500 hp they all make the same hp even under the curve what's different is where they make it "RPM'S" and it's all about how effectively you can set up the drivetrain up to take advantage of these curves. But the there all making the same hp's.
Not if the larger engine is under fed.
They are not opperating at different rpms. Look at the example.
If they both make 500hp peak at the same rpm the bigger motor will make more HP at the lower rpms.
Post 211
To you?
you two should just get a room already.
How many engines of vastly different displacements 30+ cid make same peak hp at same rpm ?
And even if they did doesn't mean the larger will automatically have better curve.
Plus I like how you skip over everything I said to look for a gotcha, I already showed all engines of X hp also make same hp numbers under the curve. Find me an 500 hp engine that don't also make 300 hp or 365 hp or 418 hp or any lower hp number that's missing ? especially cause it's smaller.
I already have a 19 page thread for this convo, he just likes to carry it on whatever thread I go to, lol
I could, but I generally answer
especially on a turd of a thread like this one. -
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