Old School and Other Rotary Old School and Other Rotary Powered Vehicles including performance modifications and technical support

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Old Mar 1, 2025 | 03:05 AM
  #1  
Parotmo's Avatar
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From: WA
Need help

12a swapping my pickup
any advice is appreciated
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Old Mar 6, 2025 | 11:33 PM
  #2  
Qingdao's Avatar
HeyHeyHey..Its the Goose
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What kind of pickup?

I mean I guess YMM really doesn't matter. Just toss it in there fab up some mounts and run a low pressure fuel pump. Get a driveshaft made and it'll work on just about any pickup truck chassis.

I like running GM fuel pumps from the 80's and early 90's (the TBI ones). In tank setups are the best. Then route all the unused fuel back into the tank.

Of course you could use the J109 ignitors, but I always revert back to the GM HEI modules to make fire.

For the exhaust... Are you gonna turbocharge it? I'd advise turbocharging all side port intake rotarys. N/A rotarys are unnecessarily loud. Unless you have a peripheral port you need a turbo to quiet the exhaust down. or else you won't enjoy the driving experience daily.

A/C is a little difficult. Depending on the truck you are swapping into your options may be limited. Its hard to get a 134 compressor to fit on the accessory line on the rotary engine without some serious engineering. If your truck you are swapping the rotary into uses R12 then you are in luck. Use the Sanden or the other A/C compressor that comes with the FB RX7 and make hoses to run to your factory truck A/C condenser/evaporator. Then purge the system and run 152a. 152a cools and compresses just as good as R12.


The power steering might be the hardest part of the swap by far. Honestly, if I was swapping a pickup truck I would opt for an electric power steering pump and just regulate it down to the original truck's specs. I know it would be a cop out, but it would work.
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Old Mar 7, 2025 | 06:39 AM
  #3  
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Waffles - hmmm good
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More info and we can help more
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