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Re: Betty White, the poor neglected race car
Posted: Sun Jun 13, 2021 5:42 pm
by HRH
Pulling the fuel cell line, no foam bits or anything, just nice clear fluid. Collected it in a clear container. Checked the fuel filter, could be blown through easily. All lines looked good, fuel came out was good. I ordered another Walbro fuel pump to replace the one in the car. It should be fine, but you never know. The only other thing beyond this is injectors. I'll probably replace the fuel filter anyway, though I don't see a need to. Anyway, car is up on jack stands on the trailer now, new fuel pump should be here by this Wednesday.
I should clarify, the pump installed now is the factory l28 pump. Anew version of it, but stock.
Re: Betty White, the poor neglected race car
Posted: Fri Jun 18, 2021 9:19 pm
by HRH
Ok, tomorrow is go time. Have the new pump and a new filter. Going to put both those on and see what goes. I'm not convinced yet, but we shall see.
Re: Betty White, the poor neglected race car
Posted: Sat Jun 19, 2021 8:42 am
by HRH
Ah yes, the usual. I finally got the pump out and wouldn't you know it, the original pump is metric, the Walbro aftermarket is SAE. Consequently, the fittings from the old pump almost fit the new one, but not quite. One has 3/8 threads, one has 10 mm threads. And the new pump came with 3/8 fittings. That's fine on the incoming side, the fuel cell to pump is 3/8. But the rest of the line is Datsun, 5/16. So now I have to go see if the hardware store has what I need since all the specialty hose fitting stores are closed on Saturday. Either that or I weld up a 3/8 to 5/16 adapter like I have on the wagon. And even then, the way the pump is mounted I need a 90 degree off one end.
Oh the fun of Datsuns! Wish I had a lift, I'd just re-run the whole line in 3/8.
Re: Betty White, the poor neglected race car
Posted: Sat Jun 19, 2021 9:20 am
by HRH
Ok, I hate cobbling things together, but it's flat out easier. Got a 1/8 npt 90 and a 5/16 nipple and 3/8 nipple. One more piece of hose to make the connection but it will be the easiest way to get the new pump in and tested.
Re: Betty White, the poor neglected race car
Posted: Sat Jun 19, 2021 1:41 pm
by HRH
So the fuel pressure is much better, but it was still running lean. I fiddled with the Motec and boom, got it happy again. The race car runs. And now, I'm going to put a modern EFI system on. The Motec certainly works, but I want something that can auto-correct and be tuned via laptop. Much easier than twiddling dials. Going with a Fishdog UA4C. Very cost effective, not as much stuff as the mainstream ecus, but it will work better than what I have, which should equate to enjoying more time with the race car.
www.speedyefi.com
Re: Betty White, the poor neglected race car
Posted: Sat Jun 19, 2021 4:06 pm
by BLUE
Nice. Interesting , both motec and the pump were offenders.
Re: Betty White, the poor neglected race car
Posted: Sun Jun 20, 2021 11:30 am
by Laecaon
That speeduino ECU is certainly cheap, and I have heard of them before.
I think once I get the wagon running, I will probably switch to a Link ECU.
Re: Betty White, the poor neglected race car
Posted: Sun Jun 20, 2021 5:13 pm
by HRH
Yeah, I've known the guy who sells them for quite some time. Rather handy fellow to know. Straight up electrical genius.
Re: Betty White, the poor neglected race car
Posted: Wed Jun 30, 2021 6:13 am
by HRH
Got my new ecu yesterday! But, being it's 110 again today, think I'm going to wait until the weekend to put it in. Think the holiday should only be a 100 high. That's much better than 110.
Re: Betty White, the poor neglected race car
Posted: Sun Nov 14, 2021 4:39 pm
by HRH
Now that I finally finished the axle for the wagon, Betty White has her winter hibernation chamber back! I need a bigger shop.
Re: Betty White, the poor neglected race car
Posted: Sat Jan 29, 2022 1:37 pm
by HRH
Alright, so I got the new helmet with HANS attachments and a HANS device from Speedway. Just test fitted them and my chest is too big! The helmet works, but the HANS device is right up against the helmet. Just doesn't fit well. Checking with the regs, there are apparently some other versions that are similar but much more adjustable.
Re: Betty White, the poor neglected race car
Posted: Tue Feb 08, 2022 1:51 pm
by HRH
Look what just showed up! Nitto N371-160 NT01
Re: Betty White, the poor neglected race car
Posted: Wed Feb 09, 2022 2:32 pm
by Taterhead
Those should be grippy.
Re: Betty White, the poor neglected race car
Posted: Wed Feb 09, 2022 9:47 pm
by HRH
I was poking them like the Pillsbury doughboy. It was gloriously squishy, lol.
Re: Betty White, the poor neglected race car
Posted: Sat May 07, 2022 2:22 pm
by HRH
Re: Betty White, the poor neglected race car
Posted: Sat May 07, 2022 4:29 pm
by DRIVEN
What did that poor crossmember ever do to you?
Re: Betty White, the poor neglected race car
Posted: Sat May 07, 2022 5:20 pm
by HRH
Lol, fuck you! It's not my prettiest work. Those were the original pictures, I cleaned it up a little after that and the subsequent modification to the one side since the exhaust hit the edge of the box on the side just barely. It's plenty strong, but way overkill and a bit large. The good news is it actually fits the KA mount quite well as it recesses a bit more than the stock Z tranny mount. I also painted it.
Re: Betty White, the poor neglected race car
Posted: Sat May 07, 2022 9:26 pm
by wayno
So it had to go backward??
Re: Betty White, the poor neglected race car
Posted: Sat May 07, 2022 10:21 pm
by HRH
The mounting pad is further back on the KA trans, so the U shape of the altered mount points forwards.
Re: Betty White, the poor neglected race car
Posted: Sun May 08, 2022 4:27 pm
by wayno
I suppose that the tranny was resting on the cross member the way it was and that was why you had to do it that way.