L33 and T56 Upgrades and Advice
06-23-2010, 07:50 AM
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L33 and T56 Upgrades and Advice So Im looking to do an L33 5.3l and T56 in my miata. I can get a 5.3 for about $1500 cheaper than an Ls1 so dont try and change my mind unless you have an ls1 and t56 for $2300. Heres my list of questions. I want ATLEAST 340WHP in a miata 
What mods do I need to do to acomplish this? What cam, intake? I only have around $2300 to spend on the motor and trans and I know if I budget right I can do it. What year motor do I need to look for to get the aluminum block 5.3l? I see so many different ones but dont know which one to get. Also What clutch combo do I need to mate the t56 to the L33? do I need any kind of spacers? I will be using the truck wiring harness and will figure out all the wiring on my own later. Thanks for all the advice
What mods do I need to do to acomplish this? What cam, intake? I only have around $2300 to spend on the motor and trans and I know if I budget right I can do it. What year motor do I need to look for to get the aluminum block 5.3l? I see so many different ones but dont know which one to get. Also What clutch combo do I need to mate the t56 to the L33? do I need any kind of spacers? I will be using the truck wiring harness and will figure out all the wiring on my own later. Thanks for all the advice 
06-23-2010, 03:03 PM
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Really!?! I thought it would take alot more than that. So far im def planning to do an upgraded cam, cai, ECM tune, and a very open exhaust. If that alone will get me at 340rwh then I'll be happy. Also, from what I hear the L33 only came with automatics. So which wiring harness do I need to use, the truck harness, or ls1 harness and modify the coil connectors?
06-23-2010, 09:00 PM
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No, the L33 packs a punch. I haven't put mine on a dyno yet, but I have a L33 with LS1 intake, LS6 Cam and springs and a T56 in a 1997 240sx. From some of the info I've read, mod for mod the 5.3L's are usaully about 15 to 25 hp less than the 5.7L.
06-23-2010, 09:17 PM
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Right on! This is exactly the encouragment I need to do my build. Will be starting a thread on it in the next few days. I've been researching ALL day about what I need to do it and I think I got a pretty detailed parts list for what Im gonna be doing. I have been getting alot both ways about how its easy to make power and a good bang for your buck with the L33, but I have also read a few negative things. What about the LC9 motor? Is there any difference in using that motor over the L33 other than alittle more added weight?
