2eighTZ4me Posted December 28, 2009 Share Posted December 28, 2009 WOW!! That was easy!!! A BIG THANK YOU to Paul (BRAAP)!! for pointing out that the fuel pump switch in the 78 is controlled by the oil pressure gauge, and NOT in the AFM like the earlier EFI cars. Another thanks to TonyD for helping me to visualize the FPR setup. You guys both ROCK!!! Just about the entire setup came out of the racecar, sans fuel delivery. I used the stock 78 pump and the FPR out of the racecar - Aeromotive 13204. Plumbed it in as Tony D suggested as a true bypass (regulator is the last item in the chain before the return to the tank) and voila - 3.5psi of pressure from the get-go. The carbs were already dialed in exactly on the racecar motor, so it was as simple as a motor swap with a couple hose end fittings and a little re-routing of fuel lines. I was worried that I'd have to monkey around with figuring out how to bypass the fuel pump switch in the AFM (I rode the short bus to Electronics 101) but there was no such problem. So - this is just going out there as "informational" to anyone wanting to do a carb swap on a 78 while using the stock EFI pump. The Aeromotive regulator will get you where you need to be, and the EFI hard lines are already setup as a true bypass return setup, so nothing had to be modified at all. Stock pump works like a champ. The turbo motor setup going in the racecar is probably not going to be as forgiving!! Quote Link to comment Share on other sites More sharing options...
turboHLS30 Posted December 28, 2009 Share Posted December 28, 2009 Nice I'm doing the same thing. Where did you get the linkage kit to make the 280z linkage connect to the webers?? Quote Link to comment Share on other sites More sharing options...
2eighTZ4me Posted December 28, 2009 Author Share Posted December 28, 2009 That's stock linkage from the firewall up to the connection on the Mikuni's. It's at a little bit of an angle, but still works fine. Quote Link to comment Share on other sites More sharing options...
sileightygx Posted December 28, 2009 Share Posted December 28, 2009 wow that looks VERY nice! congrats on the successful swap! you mentioned the carbs were from a race setup, any pics of the original car/setup? just curious Quote Link to comment Share on other sites More sharing options...
2eighTZ4me Posted December 28, 2009 Author Share Posted December 28, 2009 The racecar is actually the white one in my sig. The entire buildup (until about a month before I got it going) can be found at: http://www.hangoverture.com/73240.htm I really need to update the site with all the rest of the pics and commentary. Course, now it's almost a "start over" with the turbo and MegaSquirt.... Quote Link to comment Share on other sites More sharing options...
Steveoen Posted August 15, 2010 Share Posted August 15, 2010 Where did you get the Carbs? i want to do the same thing Quote Link to comment Share on other sites More sharing options...
roger280zx Posted August 19, 2010 Share Posted August 19, 2010 Off of his race car... read the first post. Quote Link to comment Share on other sites More sharing options...
Steveoen Posted August 19, 2010 Share Posted August 19, 2010 Off of his race car... read the first post. yeah well were do you buy them in the first place Quote Link to comment Share on other sites More sharing options...
19762802+2 Posted August 19, 2010 Share Posted August 19, 2010 yeah well were do you buy them in the first place Maybe doing a google search of Mikuni or weber would be a start? Quote Link to comment Share on other sites More sharing options...
Steveoen Posted August 21, 2010 Share Posted August 21, 2010 Maybe doing a google search of Mikuni or weber would be a start? i have...jsut trying to do some other research hence why i asked him Quote Link to comment Share on other sites More sharing options...
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