TB42 Ignition set-ups

[77F1004WD]

I have looked into doing a electronic conversion on my TB42, but they don't really give any extra spark/energy at the coil/plug. HEI kits seem to be around the $990 mark-which is rediculous for what they are.
My next option was to graft a Delco set-up off a VP V6 commodore. I have priced all the required parts from a local wrecker for under $400. Then i will just need to make a bracket for the trigger disk in front of the harmonic balacer and for the hall effect sensor. The benifit will be a much better spark, idle air control, thermo fan control, and the ability to be re graphed thru using a program like Kalmaker etc (which will be great for when i turbo mine, to be able to program in boost retard etc).
Now this is alot of work just to do for myself, but once it is done, it would be quite simple to replicate. Is anyone else interested in a set-up like this? I estimate it would come in at about the $600-700 mark for all the parts and brackets (un installed)?

[BowTieGQ]

Definately interested. I looked at the HEI too. Sounds like best option but then I was told $990 and spent $2.95 of that on new boxers! I only have carb though so would need something else to manage spark as no use installing Delco setup just for my ignition. ICE will have a box to do just that but then up goes the cost again. But I do have a spare Ecotech in the shed though. Even then I'll end up straight LPG soonish. What's wrong with converting to the EFI electronic ignition anyway? But yes, very interested.

[77F1004WD]

What's wrong with converting to the EFI electronic ignition anyway? But yes, very interested.

Well, i havn't looked into it 100%, but i assume it is incorperated in the std ECU circuit, which means you need the nissan box and the real bad bit is you need the factory air flow meter-which will be restrictive and are unreliable and expensive from what i understand.
The beauty of the delco is the map sensor based, which means no interferance in the intake air flow, also the parts are very cheap and availible. Also there is alot of local knowledge that can fix/tune or do diagnostics on a delco. Also due to the fact the VN-> used a thermo, the delco will have a electronic thermo controller. (i'm scrapping my clutch fan and using a curve blade 16" Spal with custom alloy shroud).
Also being a coil pack set-up with 3 indvidual coils, they have more time to recharge inbetween sparks, so theoretically it should have a bigger spark later in the rev range.

[BowTieGQ]

Doesn't the Commodore still use the hot wire air flow meter which isn't restrictive at all? Is the Nissan one a vane? ICE will have a box to control the Nissan electonic distibutor if adjustability is what you're after. Not knocking your idea, just brainstorming too mate.

[Freakazoid]

Hi Guys
We have a crowd her called Gotech, they make a "cheap" ECU which will do ignition and fuel for R3200. That is about, AUS$660. This unit can run of a 60-2 tooth wheel off the crank or you can lock up dizzy and run off that as the trigger. The unit runs wasted spark on a 6 cylinder and does batched-sequential injection. Good for low revs but not as good as full sequential. Problem with full sequentials are that they are expensive. You can run Megasquirt as well but need some more electronic type DIY. The Gotech can drive a dual coil pack directly. You can check the Gotech out at www.gotech.co.za

Hope this helps.

[77F1004WD]

Doesn't the Commodore still use the hot wire air flow meter which isn't restrictive at all? Is the Nissan one a vane? ICE will have a box to control the Nissan electonic distibutor if adjustability is what you're after. Not knocking your idea, just brainstorming too mate.

No Problem, keep the constructive idea's coming. The later VS-> used a air flow meter, but the VN-VR used map sensing. The problem with 99% of air flow meters, is the size of the cavity they run. They are not restrictive on a std 3.8 V6, but if you want more (like i'm turboing my 4.2), they will become a restriction. I think the nissan 4.2 one is a hot wire also, but from what i have heard, they are unreliable and very expensive.