Search found 29 matches

by NunoTT
23 Oct 2022 06:50
Forum: Body & Electrical
Topic: Dash removal and tach wiring diagram
Replies: 2
Views: 296

Dash removal and tach wiring diagram

Hello. I'm form Portugal and I have a 1973 510 Special. As far as I know, that wasn't an option in the US. The car in question is equipetd with speedo and a clock. The SSS had a tach instead of the clock. I was able to find a SSS cluster for sale, and want to install it in the car. However, I need t...
by NunoTT
24 Apr 2020 02:49
Forum: Body & Electrical
Topic: Questions about electronic ignition "stuff"
Replies: 6
Views: 1887

Re: Questions about electronic ignition "stuff"

Then your coil 1.5 plus your ballast 1.5 = 3.0 and good to go. So this only gets rid of the points it does not improve spark power....for how much??? £40 (+/-) What I'm looking for with this is mostly reliability. Not really performance, but if I get some performance out of it, great! Here in Portu...
by NunoTT
23 Apr 2020 12:22
Forum: Body & Electrical
Topic: Questions about electronic ignition "stuff"
Replies: 6
Views: 1887

Re: Questions about electronic ignition "stuff"

If using the Nissan EI distributor you can use a special 0.7 to 1.0 ohm coil. A lower resistance coil will draw more current through it and produce a hotter spark. The EI and the special coil can easily handle this. If you have points they cannot handle this amount of current and will burn out quic...
by NunoTT
23 Apr 2020 08:50
Forum: Body & Electrical
Topic: Questions about electronic ignition "stuff"
Replies: 6
Views: 1887

Questions about electronic ignition "stuff"

Hi! I was planning on installing an electronic ignition kit from Powerspark and I came across two main questions: Should I get a new ignition coil or can I use my old one? And ,if I upgrade to a new coil, do/should I still run an ignition ballast? From an internet research, I came accross many info ...
by NunoTT
24 Feb 2020 10:34
Forum: Powertrain
Topic: Running a return line with a fuel pressure regulator
Replies: 6
Views: 2076

Re: Running a return line with a fuel pressure regulator

I forgot to ask, but do I have to run a return line when using the stock mechanical fuel pump? Or should I run it regardless of using a mechanical or electric fuel pump?

Thanks!
by NunoTT
10 Feb 2020 09:56
Forum: Powertrain
Topic: Running a return line with a fuel pressure regulator
Replies: 6
Views: 2076

Re: Running a return line with a fuel pressure regulator

I would suggest to run a return line. That helps with any fuel percolation during heat soak, as there is always cooler fuel there. It helps with a more stable fuel pressure. You would put a .035-.040" restriction in the line, mine is very close to the fuel tank. Just make sure your FEED line i...
by NunoTT
10 Feb 2020 00:52
Forum: Powertrain
Topic: Running a return line with a fuel pressure regulator
Replies: 6
Views: 2076

Running a return line with a fuel pressure regulator

Hi! I recently bought a Malpassi "Filter King" fuel pressure regulator and I was wodering, should I run a return line to the tank? The intruction don't say anything about running a return. Only the usual stuff (mount it away from eat and vibrations) and that it needs to be mounted after th...
by NunoTT
28 Nov 2019 12:48
Forum: Powertrain
Topic: Tunning dual Weber's
Replies: 33
Views: 8795

Re: Tunning dual Weber's

Well, I've been away from the Datsun for some time due to university stuff, but today I got a chance to do some things on it. Last time, I removed the spark plugs, and number one had some oil in it. Today I made a compression test. 130 psi on cylinder 1, 2 and 3. Number 4 was 125 psi. I don't know i...
by NunoTT
02 Nov 2019 15:41
Forum: Powertrain
Topic: Tunning dual Weber's
Replies: 33
Views: 8795

Re: Tunning dual Weber's

You are on the right track now.....TUNING.... It goes without saying that the timing needs to be correct and for sure check the valve lash. You cannot begin to jet the carb till you have made sure those are all correct ( you still need to check fuel pressure) A back fire out of the carb means...it ...
by NunoTT
30 Oct 2019 04:07
Forum: Powertrain
Topic: Tunning dual Weber's
Replies: 33
Views: 8795

Re: Tunning dual Weber's

UPDATE: I reinstalled the carb covers yesterday and the car started right up. It now runs MUCH better! No gas dripping out, but it still backfires a bit through the carbs. But I would have to guess that is timming related and/or possibly incorrect valve clearance? I still have some work to do, but a...
by NunoTT
30 Oct 2019 03:54
Forum: Powertrain
Topic: Tunning dual Weber's
Replies: 33
Views: 8795

Re: Tunning dual Weber's

yenpit wrote: 29 Oct 2019 15:23 Well, Portugal would have had quite a few classic European cars that would have run Webers, so focus on finding a classic European shop...........it really doesn't matter that you have a Datsun, cuz Webers are Webers! Wish you luck!

TJ

True... I haven't thought of that. Thanks!!
by NunoTT
29 Oct 2019 00:41
Forum: Powertrain
Topic: Tunning dual Weber's
Replies: 33
Views: 8795

Re: Tunning dual Weber's

iceD wrote: 28 Oct 2019 21:22 Miguelsss is in Portugal and has some 510 experience

ice D
Thanks! I'll try to get in touch with him
by NunoTT
29 Oct 2019 00:39
Forum: Powertrain
Topic: Tunning dual Weber's
Replies: 33
Views: 8795

Re: Tunning dual Weber's

There are NUMEROUS factors involved, so you can try to narrow it down, but in the end you will either use your "butt dyno" with trial & error, swap jets, drive, diagnose, swap jets, drive, diagnose etc etc...........that's what I did as a kid. The other option is to find a local dyno ...
by NunoTT
28 Oct 2019 14:18
Forum: Powertrain
Topic: Tunning dual Weber's
Replies: 33
Views: 8795

Re: Tunning dual Weber's

UPDATE: I removed the covers of the Webers this afternoon, ajusted the fuel level closer to 7.5mm closed. It was around 4-5mm. No wonder I had too much gas :lol: I also changed a gasket since I had brand new set here. If all goes according to plan, I will reeinstall the covers tomorrow and hopefully...
by NunoTT
28 Oct 2019 14:09
Forum: Powertrain
Topic: Tunning dual Weber's
Replies: 33
Views: 8795

Re: Tunning dual Weber's

bertvorgon wrote: 25 Oct 2019 08:54 HA...you may laugh..but...when the Alien invasion comes and they send a massive EMP blast to stop all electronics, I will be driving in my carburetted 510.

We have a local carb guru here who is from Portugal, he is a whiz with tuning.
Who is the carb guru?