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Thread: RX7 6L Wannabe Sports Sedan

  1. #91
    are hairy Dogsballs's Avatar
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    You don't need sheath between starter and block

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    Quote Originally Posted by 50RTD View Post
    Dave, have you uploaded the data from the carby?

  2. #92
    Registered User neil_se's Avatar
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    They now suspect it's catching due to a warp in the flywheel FFS

    I've ordered some MSD leads with bendable spark boots.

  3. #93
    LS7 Prius = Proper HYBRID Walt Kowalski's Avatar
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    Quote Originally Posted by neil_se View Post
    Small world! I'm real proud of how everything is turning out.



    I've heard that about the Samberg kit. I just couldn't justify the expense for what he sells and his communication is terrible. My 4" intake uses every mm of space between the radiator and bonnet. Actually there wasn't enough space to begin with, the top support on the radiator has been cut and folded, and the second skin has been cut out of the bonnet. The supporting bar that the bonnet normal catches on is gone as well.

    I could have replicated the layout of the Samberg kit but I particularly wanted my radiator to lay forward so that the air passing through is more likely to exit through the bonnet rather than under the car. Once I've sorted out a front bumper support and splitter/undertray then I'll bend up an intake shroud.
    Samberg radiator works but is not the quality of his other stuff. He cuts another stock radiator down. Good news is PWR now have a PWR radiator using a V8Taxi style core that bolts straight into the LS FD. Or near as. You need to fab your own cowls for the OTR filter isf using the PWR. And it's much cheaper than the US Samberg one.
    Logical debate beats name calling any day. My Badges Of Honour so far in PF: Racist, Bigot, Islamaphobe, Numpty, Moron, Far Right Wing Nationalist, Far Fight Wing Fascist, "raving fucking lunatic", "dumb" & climate "denier". AND they are just SOME of the pathetic tags that I've been labelled by SOME here. HINT: Those labels are signs that the accusers have lost to logical debate.

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  4. #94
    Registered User neil_se's Avatar
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    I used a Howe radiator that some on Norotors referenced and it's a good fit with the correct sized inlets/outlets.

    Just stopped by the mechanics and there's a slight warp in the Fidanza flywheel causing the starter to catch. Going to try spacing it a bit further then see if it's enough to cause a vibration before considering replacement. Will need a slightly smaller diameter starter to clear the pipes. They did start it a few times last night and it's holding good oil pressure, I can't wait to hear it running for myself.
    Last edited by neil_se; 20-06-17 at 10:02 AM.

  5. #95
    Registered User neil_se's Avatar
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    When will it end?

    So they were able to get the starter spaced far enough to spin cleanly on the ring gear. Will still need to replace the starter with a smaller body.

    Then found that 3 injectors weren't opening, pulled them out for a clean to get them opening.

    Got the engine started with some difficulty but the breathers are smoking like a steam train and below 2000rpm it stops almost instantly.


    [Click for video]

    Mechanic was concerned about piston-to-bore clearance but he called the original machinist (who didn't do the assembly) and he suspects the original mechanic has put rings in the wrong order.

    So I guess it's engine out again for disassembly and checking

  6. #96
    Registered User lukevl's Avatar
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    Ah fuck man that sucks!

  7. #97
    Registered User fantapants's Avatar
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    Fark man

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    RIP Carly - a smile to light the world.
    06/07/2011

    http://www.performanceforums.com/for...#post842594902 - making little toys for the big boys

  8. #98
    are hairy Dogsballs's Avatar
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    Jesus, that's not going to look nice pulled down. Rings wrong way round pretty difficult

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    Quote Originally Posted by 50RTD View Post
    Dave, have you uploaded the data from the carby?

  9. #99
    Registered User neil_se's Avatar
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    Sadly I'm getting pretty quick at this. Not draining the gearbox oil was a rookie error though


  10. #100
    Registered User fantapants's Avatar
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    RIP Carly - a smile to light the world.
    06/07/2011

    http://www.performanceforums.com/for...#post842594902 - making little toys for the big boys

  11. #101
    are hairy Dogsballs's Avatar
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    Find a rubber or plastic yoke plug. Or ultra poverty toilet roll and duct tape

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    Quote Originally Posted by 50RTD View Post
    Dave, have you uploaded the data from the carby?

  12. #102
    Registered User neil_se's Avatar
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    Cheers, wish I'd though of that earlier and saved $100 of fluid.

  13. #103
    Registered User neil_se's Avatar
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    Inspired by Ed's post I thought I'd update the progress.

    Cunt's fucked. The teardown showed that the smoking and seizing was from the crank rubbing against the block and a main cap as well as one of the bearings.



    My mechanic stripped it all down and shipped it down to Abbott Engines for assessment. He's been busy and now over in the US so I haven't had a chance to speak to him about what's salvageable and where to go from here. I am still confused about how this has happened when the bottom end was turning over fine by hand originally.

    Early in July I dropped the shell off for body and paint. Progress has been slow there as well while they've been down staff but I did get a sneak peak sent to me on Friday.



    While I've been without the RX7 I picked myself up another project that was meant to be just a simple tidy up and enjoy.



    1978 CJ7 with 350 SBC and Ford 9" rear end. My intention was just to get it roadworthy, enjoy it and alter it over time, but after chasing a few small wiring issues I've now found myself stripping out all the wiring, lights, gauges and interior for replacement. Because I'm clearly a sucker for punishment.



  14. #104
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    Man that really sucks about the motor. I was packing a sad because my master cylinder was leaking.

  15. #105
    are hairy Dogsballs's Avatar
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    Wtf, on the motor

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    Quote Originally Posted by 50RTD View Post
    Dave, have you uploaded the data from the carby?

  16. #106
    Registered User neil_se's Avatar
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    Yeah I reckon, it's left me scratching my head. I'll update my tech thread for some opinions.

  17. #107
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    Did you have a positive pedal stop on your clutch pedal to stop it from over throwing?

    Oh whoops just saw your other thread.
    Last edited by Alexg; 11-09-17 at 02:35 PM.

  18. #108
    Registered User neil_se's Avatar
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    I saw it painted in person today



    It's pretty much ready to pick up once the panels are bolted back on. I just have to decide what to do with the front guards where we've cut behind the wheel to stretch out for additional coverage.

    Options are either to alter and re-glass the original lower half to create clearance



    Or create a sheet metal cover like RE Amemiya's "fender diffuser" to side skirt cover.



    I don't actually have any side skirts yet.

  19. #109
    Registered User neil_se's Avatar
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    Now it's home and looking amazing.




  20. #110
    Smoke em if you got em! LINCOLN's Avatar
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    Fucking wow that looks awesome.

  21. #111
    Registered User AlexinPerth's Avatar
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    Hot.

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  22. #112
    Registered User neil_se's Avatar
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    Quote Originally Posted by LINCOLN View Post
    Fucking wow that looks awesome.
    Cheers, it's too nice to track now

  23. #113
    Non Compos Mentos Gammaboy's Avatar
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    Whoa.

    And a vote for sheetmetal cover.
    "Where can we get hold of a Vincent Black Shadow?" "Whats that?" "A fantastic bike," I said. "The new model is something like two thousand cubic inches, developing two hundred brake-horsepower at four thousand revolutions per minute on a magnesium frame with two styrofoam seats and a total curb weight of exactly two hundred pounds."

  24. #114
    Registered User neil_se's Avatar
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    Ok time to get up to date.

    As per my September post, the engine was well fucked from an incorrect spigot bearing being installed by the original builder.

    Here's a pic of the installed spigot bearing and block damage.



    My input shaft protrudes past the bellhousing by 3/4" and should have had the smaller diameter bearing or bushing fitted in the next pocket of the crank



    (from http://media.centerforce.com/Inserts/I13GM013.pdf)

    This required a new block and crank, and I took the opportunity to change a few components including Morel tie-bar lifters to Johnson SLR lifters and the 244/261 cam (not what I'd asked the original builder for) to Camtech 238/242 .603/.605 110LSA cam. The rebuild process was pretty slow as Robbie Abbott was over in the US for Drag Week then had a big backlog, so I got the rebuilt bottom end mid-December. Millers then reassembled and I picked it up a few days after Christmas.

  25. #115
    Registered User neil_se's Avatar
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    Some time back I made a set of side and rear windows from 3mm tinted Lexan. The door frame doesn't catch the top of the window well so the sides and rear are secured with rivnuts (rear hatch is fibreglass). I later made another set of side windows from 3mm clear Lexan in case a scrutineer has a problem with the tinted windows.



  26. #116
    Registered User neil_se's Avatar
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    As Luke can attest to, the RX7 cabin is pretty fucking tight so even at 6'1" I need to make a number of modifications. This was made worse by the sheet metal tunnel and pedal box changing cabin space and positioning. Clearance above my head isn't so much the problem as the rollbar. Even though it's been made very tight against shell, with my original OMP seat my helmet was basically resting against the cage next to my head. I tackled the problem from as many angles as I could, getting the thinnest FIA padding, a (slightly) thinner shelled Stilo helmet, and the lightest, narrowest seat I could afford, Tillet B6 with Velo alloy rail.



    This allows me to sit right on the floor, as close to the tunnel as possible and it has more layback angle to move my head down further. At the lowest position I can't actually see over the steering wheel so I moved it up a few notches which still gives me adequate clearance to the roll cage.



    Of course, this caused problems elsewhere. To get better angles at my knees and ankles I needed to get the pedals more upright than the box would allow for, so I made some spacers to shift the master cylinders back. I'm now sitting right back against the cage so also needed to bring the handbrake within reach, extend the steering column 50mm, drop it down about 25mm, and remake the dash bracket 25mm higher so I can see it over the steering wheel. And of course fuck with the throttle pedal linkages that took me an eternity to get right previously.




    Last edited by neil_se; 31-01-18 at 10:17 PM.

  27. #117
    Registered User neil_se's Avatar
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    While I had some offcuts of higher grade aluminium like I used above, I remade most of the engine accessory brackets too and reassembled what was left (not much on this engine).

    About a fortnight ago I was ready to drop it in. Once I got it down into position I realised the pedestal mounts were still at my mechanics, dammit.



    Take two last weekend and another few days getting everything else reconnected,


  28. #118
    Registered User neil_se's Avatar
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    And then tonight....


  29. #119
    Registered User neil_se's Avatar
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    She's rough right now but at least it didn't go up in smoke!

  30. #120
    Opens Guido's Avatar
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    Awesome! Top work!
    Rust is lighter than carbon fibre.

    My Sports Sedan

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