Bluetop Engine Rebuild multiple question Goal 150-160hp

[Project D]

(04-15-2021 09:55 PM)Hanzo Wrote:  5.) nice that there a still available. I will first try to find decent custom pistons like Dan recommended.
6.) That's a god tip. I wanted to change the injectors anyway, also I want to keep my build futureproof so i new ECU will be useful in the future. Can you recommend a ECU? I saw some youtubers like sushpants using ECUs from the brand LINK.
7.) That is a big difference, as you said. I want my Levin to run properly.^^

Pistons: if you want them made "locally" you could look at Wossner.
Otherwise, plenty of good options out there (Traum, CP, JE, etc...)

Injectors: Go with something modern. having data is a plus.
Not all injectors will fit. They have to be 11mm top feed, and they have to be "long".

ECU: I have tuned a few in the last 10 years.
If you are going to get it tuned by a professional:
I would recommend to see what your tuner is familiar with. If you choose ECU from brand "X", but your tuner only know / tune brand "Y", it can be problematic...

If you are going to tune it yourself:
First, make sure you will be able to do it. If you never touched an engine management in your life, you probably won't (especially with ITB)
If you've never done it but you want to, the 4AG with the stock intake is actually a good platform to start with.
It's not crazy complicated as some would make it be, but it does require a bit of knowledge. So learn the basics first.

Also, list what your needs would be. Nothing worse than buying something and realizing later on that it can't do what you want (lack of input/output, functionality, etc...)

For a 4A-GE, if you want it to be future-proof you need at least:
2 temp input for air and coolant (but I would recommend at least 3)
2 to 4* analog input, one being dedicated to the throttle position (depending if it have onboard map sensor and wideband controler)
2 trigger input
1 digital input
1 CANBUS
4 ignitions output (only 1 if you want to keep the distributor)
4 injection output (no need for peak and hold if you plan to use modern injectors)
4 spare output (fuel pump relay, idle control, etc...)

Link is good but can end up quite expensive. An AtomX would work, the futur-proof option would be the FuryX. (I personally only dealt with a G4+ Xtreme)

Megasquirt. I have done plenty but I would advise AGAINST it. The appeal was the OEM ECU connector with the, now discontinued, DIYPNP version (not to be confused with the MSPNP, only for the US version of the AE86).
Lack a tone of features, use the obsolete serial port for communication...

MaxxECU. A solid option. the futur-proof option would be the Sport version.

If your want to spend more on the engine management than the car itself, MoTeC, Emtron, Syvecs, Bosch Motorsport, Cosworth. All fabulous ECU but crazy expensive !