LS2 with L92 heads and LS3 intake/tb
LS2 with L92 heads and LS3 intake/tb I put this in the internals and realized it should be here. Sorry for the double up.
I'm new to the LS world and most of the info I have running around in my head is from this site. I'm trying to make sense of what I'm going to need for an ECU that will work with what I want to build. Any info is appreciated.
I'm building a stock bottom end LS2 with L92 heads and a stock LS3 intake/injectors/tb. The springs in the L92's have been upgraded to the stock LS3 springs that handle .570 lift. For now I don't plan on running a crazy cam so the springs will be fine. I'm thinking about a stock LS3 cam that has a total of around .550 lift. There's a ton of room for improvement and potential in this set up, but for now I just want to get it in and running.
I'm looking for the easiest harness/ecu to hook up. I read about issues with the LS2 ecu and the LS3 tb or map. Should I go with an LS3 ecu even though it may be more expensive?
Thanks in advance for any thoughts/suggestions.
I'm new to the LS world and most of the info I have running around in my head is from this site. I'm trying to make sense of what I'm going to need for an ECU that will work with what I want to build. Any info is appreciated.
I'm building a stock bottom end LS2 with L92 heads and a stock LS3 intake/injectors/tb. The springs in the L92's have been upgraded to the stock LS3 springs that handle .570 lift. For now I don't plan on running a crazy cam so the springs will be fine. I'm thinking about a stock LS3 cam that has a total of around .550 lift. There's a ton of room for improvement and potential in this set up, but for now I just want to get it in and running.
I'm looking for the easiest harness/ecu to hook up. I read about issues with the LS2 ecu and the LS3 tb or map. Should I go with an LS3 ecu even though it may be more expensive?
Thanks in advance for any thoughts/suggestions.
You can run an LS1/LS2 TB on an LS3 intake. I'm running a Nick Williams 92mm LS1 drive by cable on mine. Then, just use an LS2 MAP with an extension, and use some O-rings on the grommet or some silicone to hold it in the hole. I guess it depends on what you're putting the motor in though. If you already have an LS2 PCM and harness, that'd be the way to go. But, if don't have one already, and can get an LS3 PCM and harness for around the same price, it'd probably be easier.
This is a complete swap so I'm starting with nothing. I've seen Ls3 harness, pcm and dbw pedal at sites like PacePerformance and gmpp, but it's around a thousand bucks. I've also heard of the Ls2 pcm and silicone method. I'm not sure what to do. More research I guess.
Thanks, tspence. I think I'm going to go with a cable driven tb, 24 tooth and 99-04 f-body ecm. From what I've read and people I've talked to, that seems to be the easiest, cheapest and most tunable.
So, to get ahead of the game because this engine isn't built yet, what tuning software should I get familiar with? I've been reading about HP tuners but that's really the only one I know. Any other suggestions?
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Verdad Gallardo From my understanding, HPTuners would be the way to go, but I don't really know a whole lot about tuning. I'm sure whether you went with HPT, or EFI Live, you'll be able to do about the same things with either one.
Just one thing... the yellow LS3 springs (Z06 springs) are rated to .570 lift with the LS3 intake valves. With the heavier l92 intake valves, I think they're rated safe to .525... in either case, do some homework with regard to that to be sure that your springs will handle the cam you want.
Just one thing... the yellow LS3 springs (Z06 springs) are rated to .570 lift with the LS3 intake valves. With the heavier l92 intake valves, I think they're rated safe to .525... in either case, do some homework with regard to that to be sure that your springs will handle the cam you want.
Thanks
I'm a little worried now about my springs. I thought L92 valves were the same or lighter than stock LS3 because they're hollow stem. I also didn't know spring limits were dictated by valve weight. I thought .570 was .570 regardless. Because this is going to be a street truck I just bought an LS9 ZR1 cam. It's pretty mild with less overlap than most and decent total lift. I think the numbers are 211/230, 562/558 on 122.5 LSA. So, my stock LS3 springs aren't up for the job? Spring suggestions anyone?
Thanks
Thanks
