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is 106mm turbo over kill for a 383 lt1/lt4

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Old 04-08-2008, 11:08 PM
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Default is 106mm turbo over kill for a 383 lt1/lt4

engine:LT1 block with splayed 4 bolt mains
Callies 4340 crank
Oliver Billet rods 5.85"
JE custom blower pistons, 9.5 to 1 with 65cc heads
Total seal rings
Federal race bearings
ARP fasteners and studs everywhere
Milodon Oil pump and kicked out oil pan with windage tray
Cloyes double roller chain
Custom ATI damper for blower, it has a BBC sized hub
AFR Competition Ported 220cc heads, exhaust bolt pattern for stock or spread port headers
T&D 1.6 Shaft rockers
Custom Competition solid roller cam, new CC solid roller lifters and pushrods
new ported LT4 intake matched to heads
1-7/8" Hedman longtube headers with 3.5 inch collectors
custom fuel rails
monoblad TB
accel 83lb injectors
brand new msd opti
new msd wires

with a built t-56 and s-60 with 4.56 gears red line at 7300rpms
Old 04-08-2008, 11:17 PM
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no buy it
Old 04-08-2008, 11:23 PM
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go away
Old 04-08-2008, 11:23 PM
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no dj
Old 04-08-2008, 11:25 PM
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Originally Posted by ls1408cp
no buy it
lol, nice!
Old 04-08-2008, 11:27 PM
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fock turbo
Old 04-08-2008, 11:30 PM
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no buy the 106mm I will make you a deal
Old 04-08-2008, 11:45 PM
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Only overkill if you DON'T want to go super ****** scary fast
Old 04-09-2008, 12:29 AM
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I think it's the wrong turbo for your engine/trans/gearing setup. As a 6spd car I think you will have issues spooling it, keeping it spooled and getting it to it's effeciency range. You'll always be shifting just as it's starting to kick in. I've read that some of the

With 4.56's and a 7300 rpm redline you'll only get to 133 mph in 4th gear with a 28" tall tire. You'll need to be in 5th gear before the 1/8th mile. If you plan on trapping less than 140ish in the 1/8th the 106mm is the wrong turbo. Your injectors are also too small unless you plan on running 2 sets.

I think something with an 88mm comrpessor and a gear change to 3.5x would be a better choice.
Old 04-09-2008, 12:46 AM
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what good are LT headers with a turbo?
Old 04-09-2008, 04:35 AM
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i think the only reason he listed the headers was he was just letting everyone know what his current setup was.looks like he had some kind of blower on his car
Old 04-09-2008, 05:22 AM
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Lower gear, rev it higher and definitely bigger injectors.

I'd like to see it done!
Old 04-09-2008, 08:05 AM
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try a 101/91. might be a little more matched to your setup.
Old 04-09-2008, 02:58 PM
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I would just buy the 106mm i have forsale.
Old 04-09-2008, 08:04 PM
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the best turbo for you would probably be an 80 or 88
Old 04-09-2008, 08:18 PM
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106 is going to be too laggy. On a 6 speed car your going to have issues with boost between gears. I would go smaller. I have 91's for sale
Old 04-10-2008, 03:40 PM
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but after the clutch breaks 5 time it will be an auto anyway
Old 04-10-2008, 06:16 PM
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Originally Posted by Soul Crusher
Lower gear, rev it higher and definitely bigger injectors.

I'd like to see it done!
7300rpm is max for a stock lt1 computer. he would have to go aftermarket management to spin it higher

but yes bigger injectors will not hurt
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Old 04-10-2008, 06:30 PM
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i just sold the turbo DJ



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