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LM7 To L33 Spec Sheet Differences

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Old Jun 4, 2005 | 10:40 AM
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Default Some LM7 To L33 Spec Sheet Differences Listed Here.

Great! Thank You Sir!

I listed only the differences between the two motors listed.

I ask the tuners in the crowd, although they seem small:
How do you see these differences effecting a tune?
Do you think these differences are what gave the L33 the 15HP over the LM7?
How do you see them effecting a Blowers output.

LM7 Left - L33 Right
Both are 2005

Compression Ratio
9.49:1 9.9:1

Camshaft Lobe Lift - Exhaust
6.96 mm 7.2 mm
0.274 in 0.283 in

Camshaft Lobe Lift - Intake
6.82 mm 7.2 mm
0.268 in 0.283 in

Valves - Valve Lift - Intake Valves
11.58 mm 12.24 mm
0.456 in 0.482 in

Valves - Valve Lift - Exhaust Valves
11.82 mm 12.24 mm
0.465 in 0.482 in
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Old Jun 4, 2005 | 02:04 PM
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just a different cam?
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Old Jun 4, 2005 | 02:49 PM
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Default And Compression.

Not to nick Pick.
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Old Jun 4, 2005 | 07:00 PM
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Some one at one time said the heads where different. what trans ? 60 or 65 ? mine is shifting good since i changed tow haul settings and removed all tqm
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Old Jun 4, 2005 | 11:13 PM
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Ludicrist how did you change the trans settings on your L33, what programmer did you use or I mean how did you tune it.
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Old Jun 5, 2005 | 04:55 AM
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Originally Posted by ludicrist2500hd
Some one at one time said the heads where different. what trans ? 60 or 65 ? mine is shifting good since i changed tow haul settings and removed all tqm
My RPO code shows a 4L60e. It was rumored to be a 65 but not mine.
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Old Jun 5, 2005 | 08:58 AM
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hp tuners . I learn a little every day. I have slowly bump the timing up and no ping yet it should be 87-90 today cant wait . Next is trailblazer converter, thorleys, and magnaflow . A friend has an 05 hpp3 but they realy don't change much in 87 oct tune .

btw I average around 17.8mpg to 18.7mpg. average driving 45 to 65 back roads with at least one run per day floored 1st and 2nd .

The Rock did you get your tune yet ?
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