5752 Posted June 27, 2013 Report Share Posted June 27, 2013 My 2003 SS has a stock motor with a P1SC / 8lbs of boost, 42lb delphi 8.1 marine injectors, & Blackbear tuned. I also converted the 4L65e to 4L80e along with a 2600-2800 PI triple disk t-converter. I found a used FAST 102mm LSXRT {#146602} intake manifold w/4K on it. Includes: 102mm to 78mm OEM Throttle Body Adaptor, Fuel Rails, Fuel Line w/quick connect fittings, O-rings, Port Gaskets & the Hardware kit. $850 shipped. I plan on using the stock 78mm tb for now. Do you think it's worth it or am I wasting my time & money? Thanks for the input. Tim Quote Link to comment Share on other sites More sharing options...
zachm89 Posted June 27, 2013 Report Share Posted June 27, 2013 Not a terrible deal for the intake but Id go ahead and throw at least a 90mm tb on it while youre at it or just save up for a 102. Youre really choking down that massive intake with a stock tb, but it would get you by i suppose until you could get one more suited for the intake. I just have a TBSS intake and LS3 tb on mine and i was happy with the small upgrade it gave over the stock stuff, quite a bit better throttle response for sure and you can get them CHEAP. I dont know if i can post the link on here or not so ill hold off on that. Quote Link to comment Share on other sites More sharing options...
5752 Posted June 27, 2013 Author Report Share Posted June 27, 2013 Where can I find a LS3 90mm tb {what year?} & a x-link {what brand?} for a good price? Will I need to upgrade the fuel pump {I'm stock + procharger aux pump}? I'll need BlackBear to re-tune - right? Thanks, Tim Quote Link to comment Share on other sites More sharing options...
canadianVRss Posted June 27, 2013 Report Share Posted June 27, 2013 Doesn't matter what year for the LS3 TB, I got mine off ebay brand new for 140. You'll need a torq rush brand X link, get a new one as some of the earlier models had problems. Yes you'll need a retune for sure. Quote Link to comment Share on other sites More sharing options...
5752 Posted July 5, 2013 Author Report Share Posted July 5, 2013 Decided to go with the tbss intake manifold & not the fast. I picked up a 2007 manifold, ls3 tb, & the x-link for the swap. Manifold Includes: Injectors {I'm currently running 8.1 marine injectors w/a p1sc}, Map Sensor & Fuel Rails.I have the 2003 sss w/the return style fuel system. What do I need? Just a corvette {what year?} fuel filter? Do I need anything else to modify the 03 return style fuel system? What about the evap? Should I use a universal {which one?} in-line? Should I use the map sensor that came with the tbss manifold? Is there anything else I should know so this swap goes as smooth as possible?Thanks,Tim Quote Link to comment Share on other sites More sharing options...
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