Announcement

Collapse
No announcement yet.

Project Car: 1968 Plymouth Roadrunner build thread!

Collapse
X
Collapse
 
  • Filter
  • Time
  • Show
Clear All
new posts

    H-Pipes get da bitches mate. Everyone knows that.
    I had convo pro's on it originally, but I decided I didnt like them anymore so I flogged them off and shoved some random steelies on for now. I am contemplating either putting black street pro's on (17" probably) or else going the tried and tested torque thrust route. Probably a 17x10 rear and a 17x6 or 17x8 front?

    Comment


      Nah Torque Thrusts are too common I reckon, leave em to the Mustang and Camaro crowd.

      Tough drag style wheels as mentioned or something "pro tourer" looking maybe?

      I like these as they fit the "pro tourer" look of something that's more than just a cool old jigger but has some performance. Not sure if they'd suit on such a big car or look to modern and racey? But I like em!

      Hide yo' wife!!!

      Comment


        Yep, above choice is spot on. Looks Hallibrand influenced.

        Torque thrusts are like the Seppo version of Simmons FRs, they're farking everywhere.

        Would also look pretty good with these: https://www.weldwheels.com/product/s71/
        Rust is lighter than carbon fibre.

        My Italian 510

        Comment


          Point taken. Piss98 wtf are those called?? I rekon they would loom good in 17s.
          The weld s71s are fucking tits. That was actually another wheel I was considering...
          I also thought of running black steel circle track wheels too... be kinda cool.

          Comment


            Originally posted by piss98 View Post
            Thong slapping H pipe goodness. :p

            Looking good mate, those wheels and tyres will be fine for skid testing first. :p
            What? You'd get thong slap without the H pipe like a dirty old 308.
            Originally posted by Dimi
            80mm of penetration isn't bad, i wish i had that much.
            Originally posted by schnitzelburger
            My entire working career pretty much consists of suckin dick and takin names.

            Sometimes im too busy to take names.

            Comment


              Originally posted by 68RNR View Post
              Point taken. Piss98 wtf are those called?? I rekon they would loom good in 17s.
              The weld s71s are fucking tits. That was actually another wheel I was considering...
              I also thought of running black steel circle track wheels too... be kinda cool.
              They're US Mags Rambler U111 - https://www.summitracing.com/int/par...6152/overview/

              Originally posted by Sketchy View Post
              What? You'd get thong slap without the H pipe like a dirty old 308.
              That's what I mean, H pipe = thong slap. Mine had an H pipe when it came from the US, the change in sound when Scott made me an X pipe was bigger than I expected (although on a pissy little 8 like mine it sounds more like an inline 6 at high revs but still plenty of womp-womp at normal speeds.) :p
              Hide yo' wife!!!

              Comment


                Yo lads! I've been pretty fucking slack with updating this thread... however there has been progress!!! Decided to stop being a tired cunt and get this on the road. I really need a v8 in my life again, so the push is on to try and get this running and on a dyno before xmas.
                Anyway, so what's been happening I hear you ask??

                As with all engine conversions - all the fiddly fuckaround bits are causing the most expense and frustration. I've been ordering a lot of bits, like gaskets and aeroflow fittings (urg!).
                So engine was in, and I just sat the intake manifold in place (need to get a wiring loom in there before I get carried away):
                First issue that presented was that the fucking alternator wont fit. Didnt see any info on this on the net, so it caught me by suprise.

                The edge of the frame rail has a bit of an overlap on it that hangs out:


                So quick easy option - chop the overhang off with a grinder and then weld the seam up:


                While I was at it, I had to put in a remote oil filter. The factory setup has the filter down next to the alternator, which fouls on the k-frame on the roadrunner. Fortunately, Mah Mopar has two ports above the filter that are blanked off with plugs, so you can run a remote setup if you want. I got a blanking plate from TTI for the filter itself and then stuck in an earls remote filter kit. It's plumbed up with 8an hose, which I am hoping will be plenty. There was some heated discussion on the net about what is sufficient, but I couldnt really fit anything bigger as the ports on the block are really close together.


                Anyway so here's how we look now. I have installed a new fuel pressure regulator as well, as obviously the old setup was carb. The in-tank pump is an aeromotive stealth, so it can provide the pressure I need already. I just went a bypass style efi regulator, which was a piece of piss. Still have to tidy up the return line though!



                The factory throttle bodies are drive by wire, which is a pain in the ring. I went with a BBK cable setup instead that bolts straight up to the manifold. I considered making an adaptor and running an LS throttle body, but fuck that.


                Next issue now is trying to make a cable bracket for it. BBK dont seem to sell anything to suit (that I can see...) so ill probably have to weld something up. Should be a royal pain in the ass.


                Other than that I had some new doorcards made, because the fake woodgrain vinyl ones were bloody horrendous. New ones look nice!



                So thats about it for now. I pretty much have everything to get it fully plumbed up, so its time to sort out the engine management!
                Still not sure which way to go. Options are:
                - Haltech Elite 2500, then get some poor bastard to make a custom loom to hook it all up. About $2500 for the haltech, then probably $1200+ for someone to make the loom and fit it all up? No idea really.... It's not something I want to try and do myself...

                - Holley Dominator efi - comes with plug in loom and a base tune to get it running, pretty much plug and play. Going to be about $3800 for all the shit I need from the USA, but I wont have to fork out loads of coin for auto elec work.

                - Megasquirt - they make a plug in box and loom, but apparently the setup is a bit limited with the VVT on these engines.... Setup is cheap though - be under $2000 for the box and loom.

                - Mopar crate hemi engine management - about as much as the holley and a pain in the ass so not going that way.


                Decisions decisions!!

                Comment


                  Thatís a prick about the alternator! Iíve never even heard of that with the A-body.

                  BBK throttle body looks good, Iíll be making the same decision regarding the cable bracket soon.

                  Iím going Haltech 2500 with my 6.1 - so in a couple of months there will be a resident auto-elec whoís just recently done a custom loom for one if heís keen!

                  Good to see progress!

                  Comment


                    Originally posted by Mr Purple View Post
                    Thatís a prick about the alternator! Iíve never even heard of that with the A-body.

                    BBK throttle body looks good, Iíll be making the same decision regarding the cable bracket soon.

                    Iím going Haltech 2500 with my 6.1 - so in a couple of months there will be a resident auto-elec whoís just recently done a custom loom for one if heís keen!

                    Good to see progress!
                    Very interesting!! If you have someone lined up to do yours I would be interested to see how it goes. Could definately be a goer if he wants to do my 6.4 as well! The looms will be literally identical. Maybe he can just make 2? We should talk.....

                    Comment


                      About time there was some progress! Git er done! Slowly learning from experience here, spend the money on the better ECU so you don't spent it twice.

                      PS - can not un-see mismatched blue/red and black fittings. :p
                      Hide yo' wife!!!

                      Comment


                        looks like some good progress. with the throttle cable, it looks like motorbike clutch cable. the bike shop will have a variety of solder on ends to suit. I'm not sure what's on the pedal end, but a suitable barrel end for the throttle body will likely be easy. probably silver solder will be strongest, but I've done a few clutch cables with soft solder and minimal dramas.
                        Originally posted by Skompa
                        The throttle linkages jammed on the CDs in my old Triumph 2000 and stuck it at WOT.

                        I didn't realise for about 15 mins as it never broke the speed limit.

                        Comment


                          Originally posted by piss98 View Post
                          About time there was some progress! Git er done! Slowly learning from experience here, spend the money on the better ECU so you don't spent it twice.

                          PS - can not un-see mismatched blue/red and black fittings. :p
                          Yeah that bit kinda does my OCD over as well It's just an interim thing though, ill stick some black ones on when i'm feeling motivated. Buying fucking aeroflow fittings locally is like passing a kidney stone though. Might be time for a visit to summitracing.com again....

                          Originally posted by briney View Post
                          looks like some good progress. with the throttle cable, it looks like motorbike clutch cable. the bike shop will have a variety of solder on ends to suit. I'm not sure what's on the pedal end, but a suitable barrel end for the throttle body will likely be easy. probably silver solder will be strongest, but I've done a few clutch cables with soft solder and minimal dramas.
                          That bit is easy man, I just bought a little cable end clevis thingy off ebay. Ill grab a photo when I get a sec. Wait heres the ebay link:
                          https://www.ebay.com/itm/10Pcs-14-x-...72.m2749.l2649

                          The pedal end is sweet too as I already was running the same style Lokar cable with the big block. The fiddly / gay / shit part is trying to make a bracket that can hold the cable on the throttle body if you catch my meaning. Have to bust out ye olde' welder.

                          Comment


                            oh righto. those ends look heaps easier. hopefully the bracket doesn't give you too much static. was it just the extra wiring/setup hassles which turned you away from dbw?
                            Originally posted by Skompa
                            The throttle linkages jammed on the CDs in my old Triumph 2000 and stuck it at WOT.

                            I didn't realise for about 15 mins as it never broke the speed limit.

                            Comment


                              Cool progress.

                              Thought about a EFI quad tb on a single or dual plane manifold?

                              Sent from my Nexus 6 using Tapatalk
                              Originally posted by 50RTD
                              Dave, have you uploaded the data from the carby?

                              Comment


                                Originally posted by briney View Post
                                oh righto. those ends look heaps easier. hopefully the bracket doesn't give you too much static. was it just the extra wiring/setup hassles which turned you away from dbw?
                                To be honest it was less about the wiring issues and more about the delay / lack of response of the dwb setup.



                                Originally posted by Dogsballs View Post
                                Cool progress.

                                Thought about a EFI quad tb on a single or dual plane manifold?

                                Sent from my Nexus 6 using Tapatalk
                                That is exactly the eventual plan. Run a setup like that with a circular aircleaner so it looks vaguely oldschool again. There are some good options for aftermarket manifolds for these motors now too. Only thing that stops me at the moment is just the extra expense. By the time I get the manifold, tb and a set of fuel rails ill be in the hole around 2k??

                                Comment

                                Working...
                                X