View Poll Results: What do you think
The LS1 is not underrated
3
3.70%
Stock horsepower is around 340-350
69
85.19%
The stock LS1 makes around 380
9
11.11%
Voters: 81. You may not vote on this poll
What SHOULD the LS1 be rated
06-03-2009, 06:02 PM
#22
usually, i see people going by a better DT loss number. 15% for manuals, 18% for autos. most shold dyno about 300ish, maybe 315 max. anything higher is a happy dyno. Mustang dynos can be calibrated differently to read wayyyy high, so krazy4 & his 350rwhp off a lid, maf and cutouts is probably a very happy dyno. their are so many variables, and even SAE numbers dont correct for everything. some people brag on their STD numbers and dont even realize the difference 
06-03-2009, 06:34 PM
#23
I think using a 12 percent loss for manual cars would be more accurate for these cars. They are very efficient at putting power to the wheels. Also what type of dynos read "happy". Were those mustang dynos???
06-11-2009, 11:47 AM
#26
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that crazy bc mine bone stock, not beating it really, ran a 13.50 @ 106. btw just cleaning off a new set of BFG T/A. I assume a 12.99 would be possible with removing spare tire, playing with tire PSI, heating up the tires, perfect air and tail winds, dumping the clutch and powershifting. But 12.8 you are very lucky perhaps you have the LS6 block?
LS6 block doesnt do anything for speed. 
06-11-2009, 04:22 PM
#31
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The block allows a bit better breathing but other than the LS6 intake and the block itself, its all LS1 components. Modification wise, I can see it having a bit larger gains, but not really stock with the same components as the LS1 block.
06-11-2009, 04:33 PM
#32
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06-11-2009, 09:01 PM
#35
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unless you are engineers that actually were involved in designing the block you can't tell me anything. One thing I have noticed is the bunch of know-it-alls on this board. The fact is I won't get into my reasons because YOU KNOW IT ALL so from now on I'll keep to myself. The fact is there are differences in the block. Materials, etc. The fact that you know everything shows your level of education. There are somethings involved in this subject you haven't the faintest clue about. So good luck with your elementary theories.
06-11-2009, 09:43 PM
#36
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unless you are engineers that actually were involved in designing the block you can't tell me anything. One thing I have noticed is the bunch of know-it-alls on this board. The fact is I won't get into my reasons because YOU KNOW IT ALL so from now on I'll keep to myself. The fact is there are differences in the block. Materials, etc. The fact that you know everything shows your level of education. There are somethings involved in this subject you haven't the faintest clue about. So good luck with your elementary theories.
Enlighten us, because drawing from average dyno results of both LS1 block f-bodys and LS6 block f-bodys, AND a quick wikipedia fact finding journey...
"The LS6 shares its basic block architecture with the GM LS1 engine, but other changes were made to the design such as windows cast into the block between cylinders, improved main web strength and bay to bay breathing,"
How come this produces no real world gains in horsepower
Don't get butthurt friend, I doubt I'm the last ******* you will meet on the internet
06-12-2009, 02:18 PM
#38
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unless you are engineers that actually were involved in designing the block you can't tell me anything. One thing I have noticed is the bunch of know-it-alls on this board. The fact is I won't get into my reasons because YOU KNOW IT ALL so from now on I'll keep to myself. The fact is there are differences in the block. Materials, etc. The fact that you know everything shows your level of education. There are somethings involved in this subject you haven't the faintest clue about. So good luck with your elementary theories.
Some of us have been modding and building these engines for quite some time and know the ins and outs, it has nothing to do with knowing it all, it has to do with actual experience. You must be the type that thinks a type "R" makes something faster.
So what is our level of education that gives you the knowledge to say a ls6 block will make more power than an ls1? Do you have a mech engineering degree or something of that sort?
The ls6 engines only parts that will yield any power is the newer heads and intake which were negated by having a smaller cam than the ls1. The ls6block itself is basically the same, there were no block designs that would yield extra power.
BTW my stoock LS1 dynoed 320 at the wheels.
06-12-2009, 05:00 PM
#40
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This makes me sad...
About how much am I losing?