ignition curve between HE and PreHE
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#6
Join Date: Jul 2010
Location: Austin tx and Daytona FL.
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AH, comon Cal. a good race engine should cost anywhere from $10,000, up to $30,000, and more.
i'll admit tho some of the exotic ECU systems are expensive;case in point, a was at a swap meet , and bought this kool stan/al system cheap $500. bucks.
put it on Ebay next day no reserve, it went for $4000. and it was a used setup.
yes it did more things than i would ever need, it also was a two in one box system, if ECU troubles showed up,a flip of a switch changed to another program,all in one box,nice.
anyway you gotta do what you can afford. with your type of engine build, you will have to make tuning adjustments, its no longer a factory stock engine, it will require different fuel and ign. timing, as a minimum, to outperform stock setup.
i'll admit tho some of the exotic ECU systems are expensive;case in point, a was at a swap meet , and bought this kool stan/al system cheap $500. bucks.
put it on Ebay next day no reserve, it went for $4000. and it was a used setup.
yes it did more things than i would ever need, it also was a two in one box system, if ECU troubles showed up,a flip of a switch changed to another program,all in one box,nice.
anyway you gotta do what you can afford. with your type of engine build, you will have to make tuning adjustments, its no longer a factory stock engine, it will require different fuel and ign. timing, as a minimum, to outperform stock setup.
#7
The basic problem is that neither distributor will have an optimum curve for your particular engine. For all you know at this point, perhaps neither one will be even acceptable.
Both distributors are somewhat tunable by changing springs, weights, and stops, but without a dyno, a knock sensor, and a distributor machine, you won't know what works best.
In the long run, a Megasquirt or similar will be loads cheaper to use and tune. Use either distributor. Lock the advance and use the existing pickup in the distributor. Then control timing with the MS ECU.
Both distributors are somewhat tunable by changing springs, weights, and stops, but without a dyno, a knock sensor, and a distributor machine, you won't know what works best.
In the long run, a Megasquirt or similar will be loads cheaper to use and tune. Use either distributor. Lock the advance and use the existing pickup in the distributor. Then control timing with the MS ECU.
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