12-01-2008, 01:30 AM | #15 |
booyaah
Drives: VICTORY RED 1SS Join Date: Nov 2008
Location: BRITISH COLUMBIA
Posts: 137
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..Here and I thought Engineers drove Choo Choos....
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12-01-2008, 05:49 PM | #16 |
Go Rays!
Drives: 03 Trailblazer Join Date: May 2007
Location: St Pete, Florida
Posts: 2,533
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12-01-2008, 06:29 PM | #17 | ||
Truth Enforcer
Drives: anything I can get my hands on Join Date: Sep 2006
Location: anywhere and everywhere
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12-01-2008, 09:32 PM | #18 |
Drives: '91 Z-28 Join Date: Sep 2008
Location: Phoenix, Az
Posts: 446
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12-01-2008, 10:13 PM | #19 |
I used to be Dragoneye...
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So...it's an alternative efficiency gauge?
I'm still confused where the 150.8 came from... But this BMEP...or the cylinder pressures during combustion...can tell us which engine is really the 'best'...hmm.. LLT: BMEP = 150.8 x TORQUE (lb-ft) / DISPLACEMENT BMEP = 150.8 x 273 / 219.6 BMEP = 187.5psi LS3 (Camaro): BMEP = 150.8 x TORQUE (lb-ft) / DISPLACEMENT BMEP = 150.8 x 408 / 378.3 BMEP = 162.6psi So...according to all this, the LLT is notably more efficient at making power than the LS3... |
12-01-2008, 10:22 PM | #20 |
Moderator.ca
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its an alternative to hp/L . . .
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__________________ Originally Posted by FbodFather My sister's dentist's brother's cousin's housekeeper's dog-breeder's nephew sells coffee filters to the company that provides coffee to General Motors...... ........and HE WOULD KNOW!!!!__________________ Camaro Fest sub-forum |
12-01-2008, 10:25 PM | #21 |
I used to be Dragoneye...
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So...I'm not wrong for thinking this is just painting the car a different color (bad metaphor)?
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12-01-2008, 10:42 PM | #22 |
Moderator.ca
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Nope, you're not wrong. While useful in determining what is the better engine, in the end it comes down to what the final output numbers are, just like with hp/L or hp/lb of engine. 240 psi BMEP is great, but 300 hp beats 100 hp in the same car, regardless of how efficient the engine is at producing power.
Also, colour is important. Red cars go faster! Proof? Ferrari.
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Note, if I've gotten any facts wrong in the above, just ignore any points I made with them
__________________ Originally Posted by FbodFather My sister's dentist's brother's cousin's housekeeper's dog-breeder's nephew sells coffee filters to the company that provides coffee to General Motors...... ........and HE WOULD KNOW!!!!__________________ Camaro Fest sub-forum |
12-01-2008, 11:41 PM | #23 |
Helping Build America
Drives: 2010 2SS/RS,LS3 2013 Duramax 3500HD Join Date: Aug 2008
Location: Freeport LPG Export
Posts: 3,839
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Damn it!! Why then won't my red Colorado go past 100mph?
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Life's journey is not to arrive at the grave safely in a well preserved body, but rather to skid in sideways, totally worn out, shouting "Holy shit, what a ride!"
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12-02-2008, 05:54 PM | #24 | |
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Quote:
My post was really to show that 2v pushrod technology is just as capable as all the fancy tecnology they use for Indy cars. In other words, the LS3 is running at a relatively low state of tune compared to the LLT. Given a similar state of tune for the LS3-the BMEP will easily reach those numbers shown for the LLT-or about 470 ft lbs of torque at 187psi. Interestingly enough, the GM hot cam motor makes 475 ftlbs of torque at 4500 rpm... LS3 for the MFW But no disrespect to the LLT either, it is a nice setup.
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12-03-2008, 12:12 AM | #25 |
Drives: 00 Blazer Join Date: Aug 2008
Location: Texas
Posts: 5,104
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More is not always better. I have a lot of solid kills in my classic RX7 and it's only 100 hp. No cam, valves etc either haha anyway point being bigger is not better just by default. Most time yes but not every road is a straight line.
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12-03-2008, 12:28 AM | #26 | |
Drives: '91 Z-28 Join Date: Sep 2008
Location: Phoenix, Az
Posts: 446
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Quote:
...which would be bigger... in the same sense |
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