Holley Sniper

[Green411]

Thank you Mr Thor (Is 'Mr' a suitable title for a God of war? Discuss...)
My current problem is trying to find a 1/8 NPT temp gauge sender with the same resistence as the standard one - the ECT sensor has to go in the top of the waterpump, where the temp gauge sender used to be. The only other available wet port for the gauge sender is a1/8 npt one on the front face of the pump, just below the old 1/2 NPT port. A £10 item that's driving me nuts......

[Philip]

What’s the resistance of the standard one?

[Green411]

So far as I can make out,
37*c = 400 ohms
40*c = 370 ohms
50*c = 250 ohms
60*c = 165
70*c = 121
75*c = 100
77*c = 91
80*c = 87
But these were done with hot air gun or hot water so not necessarily that accurate!

[Green411]

Well the job's finished.
After connecting 6 wires, connecting the hand-held terminal provided, entering the basic engine data, you key-off to save the data and create the base map for starting. Then key on, check the fuel pump runs and primes the system, and start. It cranked for 5 seconds or so....... then it fired cleanly. And with not one iota of drama it immediately settled into a steady fast idle…..Whew…………….
All I’ve got to do now is hope it was worth it.
THe Sniper self-learns the fuelling as you drive (timing is still from the distributor) so I'll report back once I've driven it a bit.
There'll be an article about it in a future Bodacious, I hope.
Thanks for your interest. And patience!

[AndrewA]

The self learning sounds fun...do you teach it what foot to the floor means first or save that part of its education until later?

[David C]

Encouraging progress! Do you have plans to add the Hyperspark distributor so that the Sniper can control ignition timing?

[David C]

Back to other ways of improving fuel consumption - A bit of research suggests that the 383 is internally balanced so it should be fairly straightforward to adapt to a 46RH transmission with an adapter plate and spacer for the flex plate. PATC amongst others have them readily available, but at about $800.