RX-8 Engine Swap - RX8Club.com



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Old 06-06-2007, 08:54 PM   #1
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Thumbs up RX-8 Engine Swap

Hey guy's i know this is kinda a dumb question but i am just curious if an LS7 engine would fit in our RX-8???
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Old 06-06-2007, 08:59 PM   #2
Rotary , eh?
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no
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Old 06-06-2007, 08:59 PM   #3
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im gonna say no, but..........

with ehough money, time, and money i guess

you would need to fit new trans, clutch, ect. . . . . . . . .


and you would need to move everything
why not just buy a vette
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Old 06-06-2007, 10:18 PM   #4
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I've seen more Ford engines swapped into Mazdas, usually a 302. I think the reason was oil pan clearance, but there is no way to know without getting an engine and measuring everything, then you don't know until you try. I would think you'd get front to rear and left to right clearance problems, plus the LS7 being too tall.
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Old 06-06-2007, 11:17 PM   #5
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the LS7 being too tall.
Bingo.

If you really want to get exotic and try something that would fit, look for a surplus Allison Model T63-A-700(250-C18) Gas Turbine Engine. 325 HP out of a 140 Lb motor that measures 40" long by 33" diameter. No radiator needed. Probably better with an automatic.
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Old 06-07-2007, 12:15 AM   #6
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I've seen more Ford engines swapped into Mazdas, usually a 302. I think the reason was oil pan clearance, but there is no way to know without getting an engine and measuring everything, then you don't know until you try. I would think you'd get front to rear and left to right clearance problems, plus the LS7 being too tall.
just let it stick out the hood. custom hood
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Old 06-07-2007, 07:21 AM   #7
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A custom hood would solve the height problem, but not the others (if they exist). I do like the gas turbine idea, but where do you vent that super hot exhaust?
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Old 06-07-2007, 09:11 AM   #8
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If an Ls1 will fit in the Rx8 so will an Ls7...same exact block with different technology bolted to it.


Use the Search Button...I know I read somewhere someone had it done with an Ls1 or Ls2.

Last edited by cavemancan; 06-07-2007 at 09:13 AM.
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Old 06-07-2007, 10:32 PM   #9
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ok does the ls1 just drop right in i am trying to do the swap and need to know whAT all i need
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Old 06-07-2007, 10:35 PM   #10
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ok does the ls1 really drop right in I am doing this swap and need to know what all is needed for the swap
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Old 06-07-2007, 10:59 PM   #11
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if u need to ask such question, this job is not something that you can do.
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Old 06-07-2007, 11:00 PM   #12
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in all honesty no one has really done one. be a pioneer
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Old 06-07-2007, 11:04 PM   #13
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ok does the ls1 really drop right in I am doing this swap and need to know what all is needed for the swap
pics??? car, motor. anything?

beers
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Old 06-08-2007, 08:22 PM   #14
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A few ppl have talked about doing this swap a while back but I guess they were just blowing smoke cause we haven't seen one yet.
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Old 06-09-2007, 07:59 AM   #15
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Go the Major Horsepower forums. I've started a thread about this. There is a well known company that does LSx swaps into RX-7s and 240SXs looking for someone wanting to do this. They build kits to make the swaps bolt on. This is definitely not DIY without.

EDIT: Here you are: LSx conversion. Details inside...

Last edited by savedsol; 06-09-2007 at 08:04 AM.
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Old 06-10-2007, 06:38 PM   #16
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swap 13B turbo
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Old 06-11-2007, 08:03 AM   #17
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sell the 8 buy a mustang
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Old 06-12-2007, 08:49 PM   #18
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swap 13B turbo
Is it possible to swap a fc3s into rx8 cabin........?Any after effects pls advice........
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Old 06-13-2007, 06:45 AM   #19
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Is it possible to swap a fc3s into rx8 cabin........?Any after effects pls advice........
no way are you going to fit a whole fc3s into a rx8. you would totally ruin the interior and gas mileage would get worse
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Old 06-13-2007, 11:13 PM   #20
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no way are you going to fit a whole fc3s into a rx8. you would totally ruin the interior and gas mileage would get worse
Coz my apex seal break and i tot of changing to fc 13b turbo. Its not the whole fc in rx 8 but only th engine mounting n the 13b turbo with microtech.pls advice if any after effects like the mentioned gas mileage and wat else..........
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Old 06-14-2007, 08:38 AM   #21
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^ is english not your first language?
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Old 06-14-2007, 11:38 AM   #22
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^ is english not your first language?
Nah, he just failed the National Spelling Bee Contest.
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Old 06-14-2007, 12:14 PM   #23
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If your going to do a high power engine swap with the 8 just go for a 20b mazda eunos cosmo engine it'll mate up the stock tranny
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Old 06-14-2007, 09:56 PM   #24
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If your going to do a high power engine swap with the 8 just go for a 20b mazda eunos cosmo engine it'll mate up the stock tranny
From the place I'm in, 20b is not available. anyway wat's with the 13b turbo (Fc3s)? Is there any Problem with it in 8? Are there any sucessful 8 with 13b turbo (Fc3s) engine swap.......?
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Old 06-14-2007, 11:27 PM   #25
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sell the 8 buy a mustang
or just buy a mustang in addition. I can tell you as Cobra owner as well that the Cobra fails to scratch any itch accept for speed and power. That's about the end of it's entertainment.

If you're REALLY pushin to do a swap, go 3-rotor or 13B TT...still a hard swap but not NEAR as hard as an LS7
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325, engine, fc, fc3s, ford, gas, hp, mazda, modifications, motor, ranger, rx, rx8, swap, t63a700, turbine

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