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Discussion Starter · #1 ·
While this is a short review for a Hakosuka (Nissan, not Honda), it might help somebody who is starting from zero:

Vehicle
Nissan Skyline GT-R Hakosuka 1972

This is the kind of car that requires the motivation to be turning switches on and off depending on the season. It should be fun to watch from the passenger’s seat, but when it is your car, it is a real pain.

I am not giving up on this car, not because I can’t afford to change to another car, but because I have decided that this Hakosuka is gonna be “MY car.” Some people end up feeling easily burdened by their car, but I will stay firm on my word.

My image of a comfortable car included an engine that runs on the first shot, and no need to worry about which season is it. ① I need to change from carburetor to injection system ② I need a new engine, such as an RB. It took me about 1 year in order to get this done.

At that time I couldn’t find anybody who knew how to do the fuel injection in a Hakosuka, no matter in how many shops I stopped to ask. In general, I didn’t get a good reaction to my idea. I was about to give up… but an unknown force moved to keep going. Looking back at that time, I am very glad for all that I learned.

In order not to completely give up on the L-engine’s sound, I needed change from carburetor to fuel injection, and then it will be necessary to pick the right ECU. Regarding the settings of the computer, even for the pro racing cars, it is done by trial and error. That’s why you don’t really know how many months, or years, it will take you to finish the settings. At this point my spirits went low once again… “It will somehow work out” I told to myself, and on the spur of the moment I decided to go for a Haltech. Obviously I was not the one that decided (lol).

The decisive factor was the passion of the engineers involved. The one building the car was aiming to make this car run; the one in charge of the settings was aiming for a comfortable ride; me… I was cheering them up with all my forces! (lol) For both of them it was the first time to work in this kind of build for a Hakosuka, even going for really proactive measures. In a short time of period, my wish was fulfilled within one year. (Yes, one year is fairly considered a “short period”.)

Equipped with a Haltech computer, I have not had a problem not even once. And whenever I want to make a small change, I can totally do it on my own. After switching to fuel injection, I can truly start it in just one shot. My wish of “Hanging around in my Hakosuka” seemed to have been fulfilled. Even late at night it starts without any problem, just like any modern car! … it sounds a little weird, but this is the best way I can explain it.

If anybody would tell me “I wanted to change to fuel injection, but…”, I will tell them “Do not give up!”, and immediately I would recommend a Haltech. But also keep in mind that this kind of process will cost you at least 2 million yen (approx. 20 thousand dollars.) Would it better just to buy a new car instead? (lol)
 

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Discussion Starter · #7 ·
I was just sharing this post with some Japanese friends, and they were surprised that in the US you rather prioritize acceleration. Not that there is nobody like that over here, but in general they wouldn't mind sacrificing some speed in order to keep the balance of the engine.
 
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