datsunfreak Posted April 9, 2011 Report Share Posted April 9, 2011 Maybe an A-15 would do better? I'd bet with an A15/5spd and better rear gears you could crack 40. :cool: Quote Link to comment
68Datsun510 Posted April 9, 2011 Author Report Share Posted April 9, 2011 How much different is an A from a J??? My Z22E setup that Jon test drove back in the day got 31mpg on I-5 going semi speed following trucks Quote Link to comment
datsunfreak Posted April 9, 2011 Report Share Posted April 9, 2011 How much different is an A from a J??? From looking at them side-by-side, there appear to only be two main differences. The A-series has 5 main bearings, while the J-series has 3. And the A has individual intake and exhaust ports (4 and 4) and the J has "siamesed" ports (2 intake ports, 3 exhaust). Externally they are damn near identical. Of course the A-series makes more horspower and torque, too. And has better parts availability. :P Quote Link to comment
68Datsun510 Posted April 10, 2011 Author Report Share Posted April 10, 2011 Hahaha, i feel like such a noob again, like its 2004 and im on the bbl as the 'new kid'. Never dealt with trucks, much less 'borrowed' engine designs that appear to predate flatheads :P (J series) Quote Link to comment
WAGON JON Posted April 10, 2011 Report Share Posted April 10, 2011 Comparing gas prices only, what will an A-15 get as apposed to an SR normally aspirated? Quote Link to comment
datsunfreak Posted April 10, 2011 Report Share Posted April 10, 2011 Comparing gas prices only, what will an A-15 get as apposed to an SR normally aspirated? Assuming you aren't running the factory EFI on the A15, and you're willing to "short-shift" the SR a bit, I'd say the SR would be a good bit better on fuel. Likely at least low to mid-30s in a truck that light. Quote Link to comment
68Datsun510 Posted April 10, 2011 Author Report Share Posted April 10, 2011 An SR/KA geared properly on EFI would probably match within a reasonable amount, but an A12 driven nicely with a perfectly tuned card would probably kick everythings ass... Quote Link to comment
sick620 Posted April 10, 2011 Report Share Posted April 10, 2011 72 is when datsun went metric.... trucks 72 and before are sae.... Quote Link to comment
68Datsun510 Posted April 11, 2011 Author Report Share Posted April 11, 2011 Yep yep, so ive been told. ANd i felt like a dummy hahahaha... Quote Link to comment
sick620 Posted April 11, 2011 Report Share Posted April 11, 2011 dont worry i didnt know that either till i got my 521 :) Quote Link to comment
68Datsun510 Posted April 11, 2011 Author Report Share Posted April 11, 2011 Well folks spent the entire day out there workin on the GROSSCOACH4000! My buddy saw that someone stickered '4000 gross' on the side of the bed and named the truck! LOL!! Anyway, finished sorting out the 'front end electrical'. Repaired a badly damaged alternator plug, installed a modern relay for the horn, stock ones fried, sourced a wire for the electric choke relay, and pulled many a mystery wire out of the harness. Thankfully, the wiring colors are the same from 510-521! EVerything up front works now, except that the turn signals need to be repaired. After that i followed a mystery wire spliced into the fusebox harness down the frame rail. I tugged on it, and 2ft of wire with a broken end came up. Lame. But, it gets better! THe rest of the wires still there, it goes to the bed/cab split, and ends. Its taped to another wire of a different color. THey arent connected, just taped. This NEW wire goes back 2 more feet and is soldered to the GW wire that powers the tail lights. I think this genius thought this would bost power for trailer lights. No insulation, just some badly applied electrical tape. Fixed. Then a sawzalled off the bumper! =D The fog lights i scored for $4 at a flea market this morning. Poked around in the mess of trailer and tail light wiring, got the lic plate lamp to work, all tail lights work, but one rev bulb looks to be...original...WOW. Quote Link to comment
68Datsun510 Posted April 11, 2011 Author Report Share Posted April 11, 2011 Oh yeah, that mystery wire changed color THREE TIMES!!! Cheap dumbass! Quote Link to comment
68Datsun510 Posted April 12, 2011 Author Report Share Posted April 12, 2011 Debugged the tail lights yesterday, what a cluster &^%$. I hate trailer wiring. I especially hate trailer wiring done by someone with a fetish for clip-splices. Also had to rip tear and destroy 3 light bulbs to get them out of the tail lights lol. Quote Link to comment
68Datsun510 Posted April 14, 2011 Author Report Share Posted April 14, 2011 Wirings done in the rear. Even after rebuilding the harnesses, ripping out old bulbs and restoring the sockets, i still has issues with the wrong lights blinking or bad/no functionality. Turns out, the factory grounding isnt working so well, so, i ran a frame ground off each tail light to a cleaned section of frame and voila! Everything worked in the rear. After that i went to test the hazards. Nothing. Probed around, no power at flasher unit, no power at the cig lighter, nothing. So i dove into the engine room harness thinking i effed a wire up deleting that vacuum switch. Found nothing. Checked fuses, all good. Kept messin with it with no results until i decided to jump the 30a fuse with a test wire. BLAM! EVerything came back on. Pulled the GOOD LOOKING fuse and the cap fell off. It blew inside the cap! Change all your fuses when you buy an old car, even if they are good!! Great success this evening. All thats left, is interior and accessorizing. ANd of course...an engine... On to pics, gotta love my stand-in 'blinker-simulators'. A test light, and a functional turn signal. hahaha. CHeck the bullet plate bolts, and the backup license light ;) Quote Link to comment
68Datsun510 Posted April 15, 2011 Author Report Share Posted April 15, 2011 Couple nice pics, not that anyones watchin this thread :/ Quote Link to comment
Ken_B Posted April 15, 2011 Report Share Posted April 15, 2011 Your oics, they will not load Quote Link to comment
metalmonkey47 Posted April 15, 2011 Report Share Posted April 15, 2011 Lookin good man Quote Link to comment
68Datsun510 Posted April 15, 2011 Author Report Share Posted April 15, 2011 Ken, all is good here, still no worky??? Quote Link to comment
Ken_B Posted April 15, 2011 Report Share Posted April 15, 2011 There they are, Good lookin truck! Quote Link to comment
wayno Posted April 15, 2011 Report Share Posted April 15, 2011 We're here Cody, lurking.:lol: :lol: Have you decided on your engine yet? Seems your getting all the important stuff taken care of, soon all your going to need is a drivetrain, and a ratsun sticker of course. :D Quote Link to comment
erichwaslike Posted April 15, 2011 Report Share Posted April 15, 2011 not trying to rain on ur parade but this is not the proper way to power and trigger a relay, at that point u may as well just wire it straight to watever ur powering Quote Link to comment
thisismatt Posted April 15, 2011 Report Share Posted April 15, 2011 not trying to rain on ur parade but this is not the proper way to power and trigger a relay, at that point u may as well just wire it straight to watever ur powering It's a perfectly good way to power and trigger a 4 pin relay when using ground as the trigger. The stock configuration is the exact same way with 3 pin relays, because they already have the main power and relay trigger power connected internally. With a 4 pin relay you simply have to jump the main power to the trigger power, which is what Cody has done, in order for the trigger to work when the other side is grounded. It's certainly not the same as running power straight to the device - the relay is performing its function as desired. Quote Link to comment
WAGON JON Posted April 15, 2011 Report Share Posted April 15, 2011 Looks like a runner. Get that engine and go! Quote Link to comment
68Datsun510 Posted April 15, 2011 Author Report Share Posted April 15, 2011 Thanks for the clarification, erichwaslike. I have the engine, waiting on my full gasket kit and clutch disc!! The 510 is taking priority at the moment as its my Canby ride, but this should be running before Canby too! Im gonna stick with the J13 until i can afford to complete my KA swap in the 510, then that nasty L19 i have is goin in the truck. Hehehehehe Quote Link to comment
68Datsun510 Posted April 21, 2011 Author Report Share Posted April 21, 2011 Ooh looky what arrived today =) Quote Link to comment
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