I am getting closer to swaping my 90 motor into the 84 GS. The question I have is do I need to change the oil pan and the front cover. Also I think im going have a problem with the motor being that it was a automatic car. I hope I just have to change the flywheel https://www.nopistons.com/forums/pub...IR#>/dunno.gif
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You need the 12A cover and a GSL-SE oil pan. You'll have to modify the 12A brace or buy the RB one.
Either buy a lightweight flywheel for the 89-91 engine (you already have the auto counterweight), or buy a used 89-91 NA flywheel. Also you will need to install a pilot bearing and seal. Are you going to run it carb or fuel injected? |
Im going with a dellorto. So the A/T counter weight will work on a manual trans?
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Only with a lightweight flywheel. They come neutral and bolt to the auto counterweight the same way the flexplate does. A stock flywheel has the weight cast into it.
PS: are you going to premix? |
I dont think I will have to premix I am going to use a gslse omp which should connect to the dellorto. This swap is starting to feel like a little more work than its worth. everything is being removed from the engine bay of the 84 that is not needed. and everything is being removed from the 90 motor that is not needed like all the emission crap :smirk:
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It is a fair bit of work, but you'll end up with a bunch more HP.
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Originally Posted by RX7CMS' date='Nov 4 2002, 09:48 PM
I dont think I will have to premix I am going to use a gslse omp which should connect to the dellorto. This swap is starting to feel like a little more work than its worth. everything is being removed from the engine bay of the 84 that is not needed. and everything is being removed from the 90 motor that is not needed like all the emission crap :smirk:
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Originally Posted by RX7CMS' date='Nov 4 2002, 09:39 PM
Im going with a dellorto. So the A/T counter weight will work on a manual trans?
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Originally Posted by Felix Wankel' date='Nov 5 2002, 01:32 AM
You need the 12A cover and a GSL-SE oil pan. You'll have to modify the 12A brace or buy the RB one.
Either buy a lightweight flywheel for the 89-91 engine (you already have the auto counterweight), or buy a used 89-91 NA flywheel. Also you will need to install a pilot bearing and seal. Are you going to run it carb or fuel injected? EDIT - The GSLSE OMP is also different from the 12A (GSLSE = 2nd gen Mech OMP - 4 ports) When I converted my '86 13B to a 1st gen style front mount, I used a bicycle brake cable to operate the OMP from the Weber DCOE. It is nice and flexible and easy to route and adjust. |
If you wind up with a gay intake manifold like mine, you'll only need a 12A OMP to run to the rotor housings.
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Since he is going with a Dellorto and the carb has no provisions for the OMP lines, I'd stick with the 4-port OMP. You should already have the injectors in your rotor housings and lower intake manafold anyway.
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ok im lost sorry, I need a GSLSE front cover and a 4 port OMP if this helps any I am using a complete RB set up lower and upper intake manifolds and the dellorto https://www.nopistons.com/forums/pub...1047683894.gif
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You need:
1 - GSL-SE front cover 1 - GSL-SE oil pan 1 - GSL-SE oil pump pick-up with screen 1 - '84-'88 13B Non-turbo 4 port Mechanical OMP Before you do the swap, check out Mazdatrix "How to" or FAQ section about the front cover and the torrington bearing. You don't want to screw this up. http://www.mazdatrix.com/faq/pulley.htm Also the one about the front cover o-ring http://www.mazdatrix.com/faq/oring.htm |
All you have to do is tilt the engine up on the flywheel when you change the cover. The bearing won't slide down.
Does the RB intake have provisions for the stock metering pump? |
Originally Posted by Felix Wankel' date='Nov 7 2002, 07:37 PM
All you have to do is tilt the engine up on the flywheel when you change the cover. The bearing won't slide down.
Does the RB intake have provisions for the stock metering pump? |
why not just run premix and block off the OMP? wouldnt it simplify things a bit? afaik premix works better anyways.
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