Who here knows something about the 5.3's?
08-09-2009 | 01:08 PM
#11
Thread Starter
11 Second Club
iTrader: (37)
Joined: Jan 2007
Posts: 1,383
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From: northwest La
damn, I get plent of responses here. I will be looking for a lm7 specifically cause I want the dished pistons. I will be swapping heads, so no concern with those. different camshaft springs and rods. I just thought I read somewhere the 03+ model lm7's had better internals(not sure what though). I did read the wiki link posted above last night, lots of info. I am just looking for something that says about internals mainly (ie. the 03 models had upgraded connecting rods or rod bolts whatever) So I know what year model I should be shooting for. Thanks, lots of help so far, keep it coming also DOD is displacement on demand correct? I am guessing it won't matter if I get one of these lm7's with this will it? That's just all electronics, I can just ditch it and do what I want I assume
Last edited by taws6m6; 08-09-2009 at 01:14 PM.
08-09-2009 | 01:25 PM
#13
08-09-2009 | 06:39 PM
#14
The L33 do not forget has the LS6 heads. A tiny bit more cam too. Mine loves the Radix. It got the coated piston skirts and the floating wrist pins and is a silent running motor even when cold.
It's also 100 lbs lighter in full trim compared to the LM7. A wash with the 80+lbs of the Radix kit.
But if you gotta have dished.
It's also 100 lbs lighter in full trim compared to the LM7. A wash with the 80+lbs of the Radix kit.
But if you gotta have dished.
08-22-2009 | 02:24 AM
#18
On The Tree
Joined: Jul 2006
Posts: 113
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From: BKCT
Higher compression is better for boost. It requires less pressure to achieve the same final compression, and is more fun to drive around town. Turbo's do not spool at low to mid throttle, so when you run more compression the vehicle will be less of a dog in the lower throttle driving. Higher compression also makes the turbo spool faster.
08-23-2009 | 09:04 AM
#19
Not according to everything Ive ever been taught or read about.
Airflow(good heads/intake/exhaust) is better because then it requires less boost to make the same power. Id rather run 4-5 PSI than 8-10psi if both options netted me the same power.
Airflow(good heads/intake/exhaust) is better because then it requires less boost to make the same power. Id rather run 4-5 PSI than 8-10psi if both options netted me the same power.
10-24-2009 | 06:27 PM
#20
Staging Lane
Joined: Oct 2009
Posts: 60
Likes: 0
From: Southern Alberta
Higher compression is better for boost. It requires less pressure to achieve the same final compression, and is more fun to drive around town. Turbo's do not spool at low to mid throttle, so when you run more compression the vehicle will be less of a dog in the lower throttle driving. Higher compression also makes the turbo spool faster.