Which on3 turbos?
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On The Tree
Joined: Jan 2017
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Which on3 turbos? Should I go with twin 61mm or twin 55mm? Motor is a 5.3, 1+3/4 inch turbo forward headers Don't have the cam yet because I don't know which turbos and it will have an intercooler. I'm ready to buy now, I just want a little advice before I pay for them
Thread Starter
On The Tree
Joined: Jan 2017
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Originally Posted by SLOW SEDAN
61's spool fast especially with a .68 exhaust housing so I wouldn't let that worry you.Trending Topics
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On The Tree
Joined: Jan 2017
Posts: 134
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The thought of 67mm's did cross my mind, I'm new to the whole LS Turbo thing, my thought process was to try and build boost earlier rather later and not rev the motor to high next step is to order a cam for my set up
TECH Enthusiast
Joined: Jan 2012
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From: Bowling Green KY
I am aware of a guy that had twin Precision 66 CEAs on a 5.3, in a big old buick. It was not a fast spooler, but wasn't terrible either. Made about 1K hp, when turned right up. He backed it off to about 750 to save drive train components, was using it with a 60e.
Thread Starter
On The Tree
Joined: Jan 2017
Posts: 134
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I've got a pretty robust th400 from ATI, I do need a new converter, and definitely need to ditch the 4.10 gears for something probably in the 3.50 range with a 28 inch tire, I'll do that after I get the car running under its own power though
Unfortunately for as many LS vehicles that are around here their is limited support for tuning them. What is your setup and what ECM are you running? I help out local guys with HPT and Holley and I frequent MIR when the weather is nice.