1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Future engine swap

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Old 02-26-07, 03:12 PM
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Renascence
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Future engine swap

I want to swap out my current 12-A engine for a 13-B. Can anyone tell me if I would have to get a different tranny as well?
Old 02-26-07, 03:39 PM
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It is suggested. You'll need the front plate from a GSL-SE's 13B, along with the oil pan. Are you planning on using an all motor setup or a turbocharged setup?
Old 02-26-07, 03:55 PM
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I was thinking more along the line of a turbocharged setup. It probably won't be for awhile though because a brand new one is kind of pricey. Another question I have though is about the fuel injection. Is there any way to still keep the carb setup?
Old 02-26-07, 04:30 PM
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Sorry.... I am sure these questions have been asked before but I posted this before I knew much about the site. Next time I will research... research... and research. Thanks for the help.
Old 02-26-07, 05:02 PM
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Yes, you can carb it. It will actually be a lot more work. Buy a used S4 13B tii, use a GSL-SE front plate and oil pain, use the stock ECU or do your research about after market ECU's, and make your decision on that. If you use the GSL-SE front plate you can use the stock GSL-SE engine mounts, and the oil pan is to clear one of the bars beneath the engine.

If you do want to go carb, you need to figure out which carb to go with, how you are going to boost prep it, look into finding an intake manifold, look into a carb hat that can withstand boost, and that will cost you even more money than the used 13B tii.
Old 02-26-07, 05:19 PM
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Not to derail this too much, but now you've got me thinking about putting a turbo on the carbed 13B GSL-SE motor I'm working on rebuilding. Would it hurt to use a GSL-SE motor? Or would the TII Motor be better?
Old 02-26-07, 06:01 PM
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Its generally not the ideal setup due to the six port design of the NA motors, as opposed to the four port design of the TII motor and early rotary engines.

You can very well do it. It won't produce as much power either.

The TII engines not only have only four ports, but they also have low compression rotors as well to supply more exhaust to spool faster and produce more power.

Also, if you are looking at turbocharging your -SE motor you are looking at spending as much for everything as what you would be spending on a used TII motor all together, which is already completely setup for boost and you won't run into problems like you would with the fifth and sixth ports.

I'm not going to give locations online as to where to find used engines, nor am I going to do anything else to make these things easier for you. This topic has been covered a million times now, and I've already said more than what I would normally due to the fact that my baby boy gets to come home tomorrow morning.
Old 02-26-07, 06:19 PM
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I was thinking about using 12A end irons to make a SP 4-port anyways, so I think my question has more to do with boosting the -SE motor. More searching for me, I guess. It's always something. Just when I think I've made up my mind, someone gets me thinking....
Old 02-27-07, 02:23 PM
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Originally Posted by Normality_Glitch
Its generally not the ideal setup due to the six port design of the NA motors, as opposed to the four port design of the TII motor and early rotary engines.

You can very well do it. It won't produce as much power either.

The TII engines not only have only four ports, but they also have low compression rotors as well to supply more exhaust to spool faster and produce more power.

Also, if you are looking at turbocharging your -SE motor you are looking at spending as much for everything as what you would be spending on a used TII motor all together, which is already completely setup for boost and you won't run into problems like you would with the fifth and sixth ports.

I'm not going to give locations online as to where to find used engines, nor am I going to do anything else to make these things easier for you. This topic has been covered a million times now, and I've already said more than what I would normally due to the fact that my baby boy gets to come home tomorrow morning.

A long awaited arrival I am sure... hopefully he is back for good. I know how hard it is to be gone for so long.

It definitely makes you look at everything differently though, cherish everything a little more.
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