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1988 Mazda RX-7 with V8 swap

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  • #1

    1988 Mazda RX-7 with V8 swap

    Hi guys I just purchased an 88 RX-7 GXL with a Ford 351w swap and 3 speed C4 trans. it has 85k miles on the used engine and an Edelbrock rpm manifold, BBK headers, Holley 650 carb and 3" exhaust have been added with Apex'i fart cannon. The C4 tranny has been rebuilt and has a reverse manual valve body and a hurst shifter along with a turbo II rear end to handle all the extra power with LSD and 4.10 gears. It also is sporting 18" wheels and widebody front fenders. Plan is to dial in ther carb better, get all the gauges working and throw some paint on it this summer. Most likely it will be painted black. This is my weekend summer toy so it might see some drag and even a few autocrosses just for fun. I'll update as things progress. Here are some photos:

    http://www.rx7club.com/showthread.php?p ... ost9143847

    With a 2700lb curb weight, rear wheel drive, and gobs of torque this thing should haul some ass. Once I get everything working properly I have a nitrous kit in the garage that's ready to go on it too.
    -Brandon
    07 Saturn Sky 2.4 with custom turbo setup / 93 SC-2 supercharged Drag car
    Tags: None
  • #2
    Re: 1988 Mazda RX-7 with V8 swap

    needs more clevland
    Originally posted by ECOtec Gods
    Consider this: 800 hp is a lot on a 2.0L motor. With 750hp, three-quarters of a thousand you're basically dealing with 6.14 hp per cubic inch. Pressures and stresses of all kinds thermal and mechanical loading across the board escalate to extreme levels. A Chevrolet 5.7-liter LS1 V8 with this much specific power (horsepower per cubic inch) would be making 2,137 hp

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    • #3
      Re: 1988 Mazda RX-7 with V8 swap

      For $1500 I can't complain [img]{SMILIES_PATH}/smile.gif[/img]

      Plus the stock n/a 13B motor only has 146hp and like 120lb ft of torque. Not sure yet on horsepower rating for the 351 but I think its around 225hp and 300lb ft, plus it has a few bolt ons so it should be pretty quick as is and reliable as hell...I hope lol.
      -Brandon
      07 Saturn Sky 2.4 with custom turbo setup / 93 SC-2 supercharged Drag car

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      • #4
        Re: 1988 Mazda RX-7 with V8 swap

        I like it.

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        • #5
          Re: 1988 Mazda RX-7 with V8 swap

          Originally posted by AC66Bronco
          needs more clevland
          Good luck fitting a Cleveland in there.
          [16:02] Ferrari166mm: so you&#39;re finally getting into real cars.<br />[16:02] adamkob32: I&#39;ve just had enough of racing a 100HP nutsack
          <br /><br />

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          • #6
            Re: 1988 Mazda RX-7 with V8 swap

            Originally posted by DasPirate
            Originally posted by AC66Bronco
            needs more clevland
            Good luck fitting a Cleveland in there.


            Originally posted by ECOtec Gods
            Consider this: 800 hp is a lot on a 2.0L motor. With 750hp, three-quarters of a thousand you're basically dealing with 6.14 hp per cubic inch. Pressures and stresses of all kinds thermal and mechanical loading across the board escalate to extreme levels. A Chevrolet 5.7-liter LS1 V8 with this much specific power (horsepower per cubic inch) would be making 2,137 hp

            Comment

            • #7
              Re: 1988 Mazda RX-7 with V8 swap

              You forgot these...



              Comment

              • #8
                Re: 1988 Mazda RX-7 with V8 swap

                lol thanks scotty
                Originally posted by ECOtec Gods
                Consider this: 800 hp is a lot on a 2.0L motor. With 750hp, three-quarters of a thousand you're basically dealing with 6.14 hp per cubic inch. Pressures and stresses of all kinds thermal and mechanical loading across the board escalate to extreme levels. A Chevrolet 5.7-liter LS1 V8 with this much specific power (horsepower per cubic inch) would be making 2,137 hp

                Comment

                • #9
                  Re: 1988 Mazda RX-7 with V8 swap

                  Looks good. Nice find!

                  Ethanol and Boost: My Anti-Drugs.

                  2016 Chevrolet Colorado LT - HNNNNGG.
                  1999 Ford Dangah Rangah XLT - Junk haulin' junker-slut.
                  1998 Saturn SC2 - Garbage. Pure, unadulterated, unapologetic, garbage.
                  Gone: 2004 POSRT4 - 372/425 @ 20psi, "Super safe tune" --- 4xx/4xx @ 26psi, "BAMF Tune"
                  Next: 1990 Supra "LOLNOJZ" - LSx, 4L80E, Megasquirt, whole lot of Ethanol, whole lot of snail...

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                  • #10
                    Re: 1988 Mazda RX-7 with V8 swap

                    well looks like they fixed the apex seals LOL, with v8 you got a lot of options for the power.
                    [img width=600 height=150]http://i30.photobucket.com/albums/c306/art4me/signature-1.jpg[/img]<br /><br />&quot;Racing cars is like sex, every man thinks he is good at it.&quot; - J Leno

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                    • #11
                      Re: 1988 Mazda RX-7 with V8 swap

                      Wow, who ever did the swap could of cleaned it up more... like this:



                      My buddy did this one, the way you where discribing yours I thought you might of bought his. Because the details are almost exact.

                      BTW my bro's built 351 that had the same manifold and carb too IIRC. and his build was close to 400 HP at the fly, and IDR the Torque. I do realize that there is allot more than that to achieve HP but I didn't build it so I don't know ALL the details. I just know that he had a uber clean install.


                      Originally posted by HeadTrip
                      The greatest rewards can only be achieved through the gamble of the greatest risk.

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                      • #12
                        Re: 1988 Mazda RX-7 with V8 swap

                        very cool. i got ride along vids and pics of one we saw out one night here in st. louis.

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                        • #13
                          Re: 1988 Mazda RX-7 with V8 swap

                          ...........
                          ...........
                          ...........

                          great, another v8 in a rx7.......

                          why?
                          ask any tuner, and he can probably show you his &quot;box&quot; of broken parts.<br /><br />serving my country everyday for the next eight years

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                          • #14
                            Re: 1988 Mazda RX-7 with V8 swap

                            did you honestly just ask that?
                            98 SL2m - Intake, Raceland coilovers, daily driver
                            94 SW2a>m - slammed and boosted 9 PSI - sloppymechanics.com inspired. Now owned by Importsdontlikeme.
                            94 SC2m - Build in progress, Ford EDIS, 720cc's, stock engine, MS2v3.57 7 on the road again

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                            • #15
                              Re: 1988 Mazda RX-7 with V8 swap

                              Originally posted by tuner j90
                              ...........
                              ...........
                              ...........

                              great, another v8 in a rx7.......

                              why?
                              And what the fuck do YOU drive?

                              Oh, right, an NA Saturn.
                              - Justin [s]99 Blue SL2 - T3/T4 14psi[/s] (dead)


                              FS: Pimped lower trans mount, TiAL 38mm Wastegate, Gauge Cluster, Oil Drain

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