Project Old School - 1988 Mazda RX7 Convertible - with added turbo!

Discussion in 'Reality Check' started by Jenn, Jul 17, 2015.

  1. Dewie

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    do you have the ability to remove the fuel rail/injectors and check to see if they're leaking or not? My brother had a Neon once that kept flooding one cylinder and we couldn't figure out why until we took the rail out and found one injector was actually stuck open....
     
  2. Jenn

    Jenn
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    I can try that - all injectors were fully flow tested and serviced before installing, but anything is possible.
     
  3. Dewie

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    After frigging with the neon (pissing fuel in to pop containers) there was one obvious bit of "crud" in one after we managed to get it to stop leaking by - I can't remember what exactly it was we did now but we did end up putting the same injector back in...
     
  4. Jenn

    Jenn
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    So it won't start, no way, no how. Compression is messed. Time to re-think the plan (compression saga is here: 88 Convertible Won't Start - very weird problems/setup. Please help! It's been 2 yrs)


    new plan:
    6 port bridgeport (has turbo rotors in it - don't ask - I didn't build it) - was assembled with all new parts and we have had it running but of course didn't have high enough compression rotors to run as an NA and make any power, so time to slap a turbo on it. I have a set of S5 NA rotors kicking around in my other running engine as well...

    My guess on what I need to do this:
    - Full rebuild kit including apex seals
    - Upgraded injectors - any suggestions on sizing?
    - Some upgraded cooling
    - T2 transmission/flywheel/clutch/starter
    - Mazdatrix adapter driveshaft

    Already have upgraded fuel system, adjustable FPR, adaptronic standalone, 6-port turbo kit, so I'm like...part of the way there. LOL

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  5. Dewie

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    I thought you were going to Turbo this anyways?
     
  6. Jenn

    Jenn
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    It is turbo, but it was a stock engine. The new one will be ported....it's an upgrade from around 200 hp to 300-350 hp to use that engine. :)
     
  7. Dewie

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    ahhh - just what you want in a casual Sunday driver :lol:
     
  8. Jenn

    Jenn
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    Exactly!!!

    BRAPBRAPBRAPBRAPBRAP
    Let's go for a cruise honey!
    BRAPBRAPBRAPBRAPBRAPBRAPBRAPBRAP
     
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  9. Jenn

    Jenn
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    For reference, here's what it will sound like:
     
  10. knightmare

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    sounds like..... ummm.....a bee in a bottle? Would not want to be driving behind him with all that wonderful blue smoke coming out and a swarm of angry bees coming at me.
     
  11. Beaker

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    That's such a bummer.

    The new engine kinda sounds air cooled vw ish lol
     
  12. Jenn

    Jenn
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    Blue smoke is fairly typical for these - the car is probably fairly heavily pre-mixed with 2 stroke oil in the fuel. Makes them more reliable ;)
     
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  13. Jenn

    Jenn
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    Bringing this back from the dead. Now that it's winter, I've resumed the project. Working on the seats now - replacing the 28 year old foam with fresh stuff. I'm currently carving all of the pieces from foam blocks, then I'll test fit them on the seat frame and with the new covers. Most pieces are at least cut for the first seat, if not almost finished. Using an electric carving knife from my kitchen and a dremel with a sanding drum. This is messy work....


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  14. Jenn

    Jenn
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    Picked up edge wire and some retainer clips for the seat springs today. Going to be a busy weekend!
     
  15. Jenn

    Jenn
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    More progress:

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  16. Boots

    www.reality-check.ca

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    That looks like a god awful amount of work :o
     
  17. Duggan

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    Rewarding though I bet, seeing it cradle to grave.
     
  18. Jenn

    Jenn
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    Yeah when it's done, I'm going to be able to say - see those seats? I built those by hand.
    See that engine? I built that. That body work? I did it.

    It's pretty rewarding even if it's time consuming.
     
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  19. Jenn

    Jenn
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    Worked on the engine I am going to put in the car last weekend. Tore down an old one I had. Discovered some bad things (how NOT to port a rotary engine) and now I've taken inventory of what I need to fix it. I have engine internals ordered and en route, and I'm sending some parts off for machining to Ontario to my engine builder. Then, I'll reassemble it all when the parts come back.

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    Last edited: Feb 10, 2016
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  20. v-mac

    Fire / Hazmat / GSAR

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    Magic floaty triangles!!
     
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  21. Jenn

    Jenn
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    MOAR TRIANGLES!
     
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  22. Boots

    www.reality-check.ca

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  23. Jenn

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    One seat back is done - going to finish the bottom of this seat later in the weekend!
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  24. LMAC

    _

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    looks good coming together nicely
     
  25. Jenn

    Jenn
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    Yeah, I'm pretty happy with it. I want to maybe pull it a little tighter on one side, but other than that, it's good.
    The second seat will be easier I think. I sort of f*ed up last night and put the wrong cover on for that side, had to take it all back off again, but that's ok. Now the other cover is prepped. The seat bottom should be a little simpler to finish.
     
  26. Jenn

    Jenn
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    Also, I pounded my thumb putting in grommets to reinforce some of the anchor points on the fabric. :lol:
     
  27. Shafft

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    Jenn, looks awesome great work. I don't know what the product is that i'm thinking of, but some couches have a high density foam with a layer of low density (more like poly weave) stuff on top of it, generally to get rid of wrinkles. Maybe you can try that with your seats at a minimal cost, extra labour.
     
  28. Jenn

    Jenn
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    Good idea! I think they have some thinner low density stuff at the place I got all this stuff. I have some higher density stuff too to use on the seat bottom bolsters, since they see a lot of abuse.

    One thing I also did was stretch lycra over the finished foam bolsters to give them added stability and make them "slippery" for putting the covers on.
     
    Last edited: Feb 12, 2016
  29. Dewie

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    I think some of those wrinkles will likely come out after some use/time - it looks great!
     
  30. Jenn

    Jenn
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    I used a space heater near the seat to warm up the vinyl to stretch it a bit - I'll use them for a while, then take them apart and if I have to. I'm not that worried - it's really not too bad for my first go around, considering I started with foam blocks and a seat frame.

    I'm doing a few little things to make them more comfortable too - I added extra lumbar support, firmer springs on the bottom where your butt actually sits, and a little extra support under your legs. The foam I used has a little give to it - it's high density, not extra high. They should be comfy when they're done. :lol:
     
  31. Jenn

    Jenn
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    Here's today's update - engine is pulled from the convertible...and torn down.
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    Found a new clutch in there...going to sell that now.
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    Also found 3 stuck side seals, a shredded torrington bearing in the front stack, and irons and housings that had no business being reused.
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    Running out of space....
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    Measured the compressor wheel on the turbo - 55mm on the small part, 70mm on the large one.
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    Took off the front bumper and the headlights too, making way for the RE-Amemiya bumper and sleek lights...
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    For fun - these two rotors were found in the same engine, the one we tore down last weekend. One is S4 NA, one is S5 NA....not sure how this ran...they are different weights and different compression....it would unbalance the whole assembly.
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  32. Dewie

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    I do believe I recognize one of your helpers - say hello to Mr. Brunt for me if that's the case :)
     
  33. Stang

    Go Buy a Ford

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    Incredible amount of work ... You have waaaay more patience than I have.
     
  34. Jenn

    Jenn
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    Drivers seat is just about done, a couple minor adjustments to the headrest and need to get some hardware.

    Then...on to passengers seat.


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  35. Jenn

    Jenn
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    Indeed! He's one of my good friends and fellow RX7 owner. :)
     

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