S/C Build, Need some suggestions
May 21, 2013 | 06:44 AM
#1
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From: Jennings LA
S/C Build, Need some suggestions
The run down:
2009 GMC Sierra 1500 4x4 CrewCab 5.3 My current mods are American Racing headers w/ y-pipe and no cats, Dynomax catback and Volant Power Core CAI.
Sitting on the shelf I have a MP112 SuperCharger and Lingenfelter GT2-3 cam. When I get it tuned they'll port my throttle body.
The questions:
I'm ready to begin the upgrade and will have my heads ported since they have to be removed to install the cam. I was leaning toward Lingenfelter for this also, are there any other highly reputable porters that without a doubt give me better results?
Injectors, 60lb sufficient? Any particular brand to stay away from?
Are there any other engine related odd and ends I should consider while its apart, I'll address drive train later.
What is the smallest size pulley I can safely run and approximate boost? I ordered the 1" phenolic spacer also which should help IAT's with a killer chiller planned for the near future.
Thanks in advance
2009 GMC Sierra 1500 4x4 CrewCab 5.3 My current mods are American Racing headers w/ y-pipe and no cats, Dynomax catback and Volant Power Core CAI.
Sitting on the shelf I have a MP112 SuperCharger and Lingenfelter GT2-3 cam. When I get it tuned they'll port my throttle body.
The questions:
I'm ready to begin the upgrade and will have my heads ported since they have to be removed to install the cam. I was leaning toward Lingenfelter for this also, are there any other highly reputable porters that without a doubt give me better results?
Injectors, 60lb sufficient? Any particular brand to stay away from?
Are there any other engine related odd and ends I should consider while its apart, I'll address drive train later.
What is the smallest size pulley I can safely run and approximate boost? I ordered the 1" phenolic spacer also which should help IAT's with a killer chiller planned for the near future.
Thanks in advance
May 21, 2013 | 09:37 AM
#3
Heads do not need to be removed for a cam swap.
I'm at 10psi with a 3.0" pulley with my mp112, gt2-3 cam and catless LTs.
Stock fuel pump will probably not be sufficient.
I would replace the timing chain with an LS2 while you're in there. Also buy new timing cover and coolant passage gaskets and a new crank seal, cheap insurance against leaks.
I'm at 10psi with a 3.0" pulley with my mp112, gt2-3 cam and catless LTs.
Stock fuel pump will probably not be sufficient.
I would replace the timing chain with an LS2 while you're in there. Also buy new timing cover and coolant passage gaskets and a new crank seal, cheap insurance against leaks.
May 21, 2013 | 01:13 PM
#4
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From: Jennings LA
Yes the heads will need to be removed in order to delete the DOD. The engine is an LS2. The charger has a 2.8" installed but was previously used on a 6.0 with a large cam. I'm thinking that may be a bit much for the 5.3
May 21, 2013 | 01:34 PM
#5
Forgot you had dod.
Rule of thumb for these is 1psi per .1" drop in pulley size. I am on the edge of blowing through my maf, so if I went any smaller, if have to go speed density tune. Don't know about nnbs, might be different.
Rule of thumb for these is 1psi per .1" drop in pulley size. I am on the edge of blowing through my maf, so if I went any smaller, if have to go speed density tune. Don't know about nnbs, might be different.
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May 22, 2013 | 08:16 AM
#8
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From: Jennings LA
nnbs? Not familiar with the lingo yet. Ill prolly go with a 3.0 pulley also, I'm worried about longevity running the 2.8.
May 22, 2013 | 08:18 AM
#9
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From: Jennings LA
