Iv'e done a bit of research on suspension swaps and upgrades for the b210, and I have a basic idea for a little canyon carver squared away. The next obstacle to tackle is power, and the a14 surely doesn't make it easy. My original hp goal for a b210 was 200 hp to the wheels; if not the crank. upon further inspection, it seems as if the only a14s making 200 horses have ported heads, forged internals, EFI, etc and are basically race engines. I wanted to ultimately supercharge the a14 but it seemed that there would be no real way to do it reliably. I've looked into at least forged pistons as well as connecting rods, and with this summer coming up, iv'e gotten an opportunity to gain the experience to possibly install them myself; along with a supercharger. the problem is, I want to maintain reliability (somewhat) and still make power. it sounds contradictory, but i have an idea that might make it possble.
1. The supercharger
on my search for a supercharger capable of boost for smaller engines, i came across a topic based on the possibility of the amr500. This supercharger made power that wouldn't destroy the a14, but the engine would be constantly under boost. Not good for reliability. However, in the same article, another ratsun member mentioned a different supercharger; the sc14. the notable difference in the sc14 was a little wire leading from the supercharger. After further reading, it seems to be able to toggle the supercharger on and off, which means that it's possible to drive the car with or without forced induction. which means that the engine isn't always under boost, which theoretically means reliability and power when when the time is right for either.
2. The tune & methanol injection
i realized that if the car was suddenly supercharged, it would possibly need a tune up in response to the loads of new air being introduced into the engine. the only problem is that for my application, if I tuned in response to the supercharger, the engine would need more fuel; possibly making the car run rich while not under boost. if i tuned for reliability (in response to the new carb setup) the car would possibly run lean under boost. the solution seems to be alcohol/methanol injection after the carb and supercharger; usually used to cool down air coming into the engine. the methanol would cool the air like an intercooler, and be burned in the process of combustion. and since pre 1976 cars are not smogged in California, it would seem legal. The most important part of this (for my application) is the fact that the alcohol is burned and used like fuel; meaning the air/fuel ratio is affected. If a methanol injection is ran while the car is under boost, that could possibly affect the air/fuel ratio to where the car would run at a desired level; that level being slightly rich. If the methanol is not injected while the car isn't under boost, similar to the supercharger, the car could be tuned for economy while the supercharger creates boost directly proportionate to the effect of methanol injection on the air/fuel ratio.
Could something like this work?