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Everything posted by demo243

  1. Long time no updates... car is tucked away in the garage for winter. I've pulled it out and ran it for a few minutes... but that's it... Starting to have some thoughts about cutting out the roll bar.... Still think I want the option of having one...it will always be a bit of a race car... but thinking a bolt in for the couple days a year it sees track use might be nice to allow for some rear seats... I think Busta Nut put some prelude seats in the back of his four door... looking to see about maybe put an wrx seat in the rear of a 4 door?!?!? Might just be the winter doldrums messing with my head.... Also need to plan on doing all the bushings up front and maybe some new lower control arms and rods in the spring
  2. Freshly painted black block with fresh brass freeze plugs... the best!!!!
  3. Thanks I do but that could be part of the problem... it's got a 1 wire 02 on the 4th runner on the header. Could not figure out if it was a 1 or 3 wire or where the original harness plug was... so I threw the 1 wire on there and connected it right to the ecu. The weird thing is I didnt run soooo rich when I first got it running. Only after i ran it out of gas did it start running as rich as it is
  4. demo243

    ka24de info

    Double post # 2 Second thing --- Took some photos of the coil wiring... didnt get a chance to look into anything, but figured it would be worth posting. This is on my S13 KA24DE Need to figure out the best spot to tap into for the negative coil wire for the tach
  5. demo243

    ka24de info

    Double posting here..... First--- The KA in the truck is running SUPER RICH! like dripping fuel rich --- this was dripping out of the header -- not oil - seems to be gas This is the darkest plug This was the lightest I know the Idle Air Control is not working... since It when started it wouldnt hold an idle, had to manually hold the throttle open to get it to run, right now have the the throttle stop opened up to hold idle... shouldnt make it run that rich though.... maybe my O2 sensor? Only have a single one wire O2 running from the #4 cylinder in the header to the ECU... might not be right... Truck drives ok, but does seem to be "smoking" a bit when left to idle.... I dont know if this makes a difference or not... But when I first started it, it was not running this rich... the other weekend when I went to bring it down to get registered I think I ran it out of fuel while pulling it onto the trailer.... thats when it started this "smoking" and puking fuel out of the header thing... Also probably doesnt help that I am currently killing power to the whole truck --- including ecu--- everytime I turn it off --- I am assuming this is reseting the ECU every time
  6. Came home early from skiing this weekend due to some unusually warm temps... 65 in January?!?!? Ready for some Ratsun Shit? Temporary exhaust until I get it aligned and to the exhuast shop- only cost a few bucks so worth it to me... Hangs really low... forgot to grab a photo of it on the ground... Ill grab one tomorrow. Actually like the sound of it! who knows what muffler it is though... picked it up randomly years ago. Truck is running rich as SHIT! Literally dripping fuel out of the exhaust... Ill post something up in the KA thread to see what if anyone has any thoughts. This was the darkest plug This was the lightest plug As I said... dripping raw fuel out of the exhaust Also grabbed some shots of the coil wiring--- need to work through this to pick out the best place to grab the negative signal for the tach
  7. Watching this.... out of interest... I believe the 2nd and 3rd gen Tacomas with the TRD Offroad Package use a electric booster/ABS unit. I also think they are very expensive to replace... Someone had a post on here somewhere about an electric vacuum pump used to power the stock vacuum booster.
  8. demo243

    ka24de info

    This is what I have been referencing https://www.nicoclub.com/archives/240sx-s13-ka24de-ecu-pinout-and-wire-locations.html --- scroll below the adds for a diagram of just the connector with the pin numbers as well. Here are the photos hosted as well --- S13 Diagrams
  9. demo243

    ka24de info

    hmmm not coming out large enough to really read... Found a couple of diagrams on Jim Wolfe's website that spell out the coil negative... but they are for the 95+ S14 KA24DEs... need to do some digging. Here are the links for anyone interested http://jimwolftechnology.com/wolfpdf/DISTRIBUTOR SR KA CHANGE CAR TO EXT COIL AND TRANSISTER.PDF http://jimwolftechnology.com/wolfpdf/MSD TO SR 240SX.PDF
  10. Its got plates! 20200104_191012 by devon M, on Flickr Was a long Saturday but hauled it down to CT to get it registered and plated. Ended up not really needing to haul it down... but that is another long story... For some reason I have been digging this shot of it on the trailer... not sure why... 20200104_193316 by devon M, on Flickr Its running pretty rough right now... not sure if it was just the cold wet weather or what... also either running really rich or burning some oil... was leaving these nice marks on the drive way from idling... open headed only pointing right at the ground so not really sure... 20200104_141849 by devon M, on Flickr Also figured out where the water is seeping into the cab that killed the floor boards-- atleast on the driver side 20200104_141951 by devon M, on Flickr Passenger side is a little wet as well... but haven't tracked it down yet... Still a bunch of work before its road worthy... Alignment and exhaust are needed... and still having trouble with the brakes... might have to try replacing the master.... I have bleed 10 times including the load sensing valve... gonna try and adjust the drums again and see if that helps as well.... Gotta get the tach sorted out--- took it for a quick spin down the rode and felt like it was short power... but it was so loud I could have only been reving it to 2 maybe 3k... I don't know how those hot rod guys do it with open headers!?!?!? Get ready for some real Ratsun shit too with a temp exhaust! Ive had a 2.5" straight through muffler kicking around for a while... ordered up a few random exhuast parts to clamp together a shorty exhaust system just to try and quiet it down a little bit while I get everything sorted before it gets to the exhaust shop. One more for shits and giggles... it looks good wet! Need to buff and wax it soon. 20200104_142714 by devon M, on Flickr
  11. demo243

    ka24de info

    👍 now to see if I can find a color coded wiring diagram
  12. demo243

    ka24de info

    yea KA24de/ECU Wiring harness --- I have the diagram with the pinout which points to the red/yellow tach output... but it doesn work... as many people have said... some say you can use a resistor an make it work... but was hoping for a more simple straightforward solution--- which should be the negative from the coil
  13. 620 wiring diagrams can be found here https://www.nicoclub.com/archives/datsun-pickup-wiring-diagrams-for-320-520-521-620-720.html The dimmer switch as mentioned doesn't really do anything... and with an led upgrade you could burn it out... so probably best to replace it with something newer if you do that The optical wire just provides lighting to the knob itself. It feeds back to a cylinder with a bulb
  14. I think the biggest thing that people forget is the 510s weigh nothing... 2000lbs ish... everyone gets caught up in the horsepower game but are used to cars that weigh twice as much. They also forget the most fundamental benefit of a 510... slow car fast... as the saying goes it's more fun to drive a slow car fast then a fast car slow. If all you want to do is burn out then go big! If you want a fun street car 150-200hp. If you seriously fast track car 2-300hp... with major supporting adjustments including suspension, brakes, diff, steering, cage, seats, etc.
  15. demo243

    ka24de info

    What is everyone using for a signal to an aftermarket tach? On my 510 it pulls the signal from the megajolt unit... but on the 620 with an S13 KA24DE I am not getting a signal from the ECU via the yellow/red wire... which means its probably best to run it off the coil - but I am having a hard time tracing that back through the wiring diagram.
  16. Not much to update... winter in new england means snow... Poor truck is stuck outside under a cover--- which I guess I need to get a nicer one as the floor was wet after the last melt so the cover isnt waterproof... and neither is the truck hahahah Dove into the new turn signal stalk... but I dont think it will work... It needs to be opened up a bit to fit on the column... no big deal... but the bigger issue is it seems that it is not designed to split the brake and turn signals like the stock '78 is... thats an issue. In a brief moment of brilliance... or stupidity... I got the idea of maybe using one of those trailer light conversion blocks??? Run the brake signal from the brake switch into the box as well as the left and right signals from the turn signal stalk. Then run the left and right output out of the box into the rear harness... I guess the only catch would be the hazard, but those should be able to splice into the left and right signal outputs. Will be some splicing but its possible? I guess I need to spend a little more time figuring out why both tail lights are flashing when the turn signal is turned on to either side... and why the brake over rides it either way--- all this is what lead me to believe it was an issue with the turn signal switch.... Anyone got a '78 or '79 turn signal switch in good condition they are willing to part with???? Still need to figure out the tach signal as well.... tried using the yellow/red signal wire from the ECU, but didn't work. I guess I'll need to track down the negative from the coil and run that direct to the tach.
  17. This advert is COMPLETED!

    • WANTED
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    Having some trouble with mine... picked one up off of ebay... but the wiring is different and I dont think its going to work. Anyone got a clean '78 (maybe '79?) turn signal switch they are willing to part with?


  18. demo243

    ka24de info

    Both KAs I have are from S13s, and running the Megan Racing shorty header on both no issues
  19. demo243

    ka24de info

    Did some more searching and looks like that is a SpecD header for a twin cam. Based on some other photos I doubt that particular one will fit with how fat it is down by that 4-1 junction
  20. demo243

    ka24de info

    That header doesn't look right... I think its a single cam KA header.... General consensus is that the 4-2-1 headers are the best for the twin cam KA -- like this one https://www.enjukuracing.com/products/isr-performance-tubular-4-2-1-header-nissan-240sx-ka24de-91-98.html On my 510 it needed A LOT of massaging... and it still didnt clear... Had to do quite a bit of hammering to get it to clear the steering box, and then you basically need to cut immediatly after the 2-1 junction and go custom from there.... essentially did NOT fit in my opinion... and my fab skills are/were not enough to make it work. I ended up running the Megan Racing Shorty header. It supposedly gives up a little power and makes the engine feel kinda flat.. idk the car feels pretty good to me. https://shop.redline360.com/products/megan-racing-headers-nissan-240sx-ka24-s14-95-98-mr-ssh-ns14ka?variant=18174331125873&currency=USD&gclid=Cj0KCQiA_rfvBRCPARIsANlV66OFcB7GWlsD0JKsV3HzuuZcrC3O3dhzh-IaGxG7RpFrnMEvQcH8wooaAgrgEALw_wcB They used to make a lower portion as well, but seems like they may have discontinued it. It was usable, but you had to rotate it about 30 degrees. so might as well go custom from there. The most "bolt in" option is the megan racing in my opinion
  21. If I had the stock 620 driveshaft and it was all in good shape, I may have considered using it.... but for the cost of having that shortened and worrying about the carrier bearing... I probably would have gone custom one piece like I did... just simplifies things and is nice to know its got fresh joints. I used a big AFCO on my 510, unfortunately I can't tell you about the 620. The engine, trans, rad... overall swap... came with the truck so I didn't order the radiator. It works... but not my favorite.
  22. Not much going on with the truck right now... Didn't get the 510 down to CT to store it there for the winter... so its back in the garage and the truck is outside in the snow... bummed but oh well... 20191204_175609 by devon M, on Flickr I did pick up a new turn signal stalk from ebay. Gotta figure out the new wiring colors... havent had a chance to play around with it yet. 20191201_132451 by devon M, on Flickr Supposed to get some pretty good rain this week so that should wash most the salt off the roads. Might try to get the truck registered this coming weekend. We'll see...
  23. demo243

    my 1974 dats

    Picked up a new turn signal switch off ebay. Do you recall which colors went to what? Here is the pigtail coming off of mine - 20191201_132451 by devon M, on Flickr
  24. I think the stock truck trans shifters are bent to clear the seats better and be more vertical. I used an OEM boot and the OEM metal shift hole cover, just shifted it further back with some new screw holes I looked to see if I have any other good photos of the shifter but I dont... and the truck is under snow right... For a driveshaft I didnt have a good donor so I went with a full new fresh one - one piece - was like $350ish. The new flanges are a bit thicker the the old datsun flange so I had to pick up some new 12.9 shouldered metric bolts and trim em down to clear.
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