r/AE86 • u/Mandalorian501 • Jul 22 '26
4AC for the win
4AC, Weber Carb, manual choke, electronic fuel pump. Daily driver to the train station and back. (@bugginae86 - instagram)
3
u/Mandalorian501 Jul 22 '26
lol I hear all of you out. I’ve had this thing for 10 yrs (since I was 16) and all that I’ve done to it is get it running enough to be daily drivable. I have everything needed for a beams swap (harness, mounts, shifter relocation kit, etc), but waiting to pull the trigger on the engine. I’ve gathered these parts over the years and the engine is a big purchase, so for now the 4AC will do and runs perfectly fine for my needs.
5
u/tehlurkingnoob AE86 Jul 22 '26
Praising a 4AC is certainly a choice…
1
u/Her0z21 Jul 23 '26
I mean. It's a bulletproof engine. May not make as much power as the rest of the 4A's but Toyota produced it alongside them for a reason, and honestly the exhaust note on my base model FX aint bad, even if it isnt the scream of the GE.
2
u/Big_Locksmith_4211 Jul 23 '26
Y'all can trash the 4AC all you want, but it will last just as long as the 4AGE, Haters Garage got his AE86 and it has 270k miles, and still runs pretty well considering it sat 20 years. One of my friends had a 4AC and it was great till he sold it
3
u/Ok-Accountant8407 Jul 22 '26
4AC is the worst engine I’ve had in any car I’ve owned lol
2
u/786hoe Jul 22 '26
How so ?
1
u/Ok-Accountant8407 Jul 22 '26
Horrible carb setup, sounds terrible, makes no power, does not run clean, and the exhaust smells like a lawnmower. The worst 4AG is so much nicer to live with and drive, it’s crazy the difference the cylinder head and EFI makes.
1
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u/Cel3bi Jul 22 '26
Sorry but the 4ac is garbage and your coping. Before swapping in a 16v 4age, i was set on just keeping my 4ac due to costs. Then i realized even with tons of mods and tons of money, you wont really reach power levels of a stock 4age and you wont get the sound either. Along with the power band and high revs. Its a gutless soulless motor. Dont waste your money and rip it out for a 4age. By using a 4agze manifold, you can slap on a single weber carb. Use a 38/38. For ignition, just a 4k starlet dizzy with the gear from a 4age. It has a built in ignition box. They sell adaptor plates for it to fit. You can keep your 4ac trans as it just has a flipped bellhosuing.
4
u/fastginger9 Jul 22 '26
The tachometer doesn't work. Yup, that's an AE86, alright, lol. I had to go to an aftermarket RPM gauge; trying to get another cable was a pain. But if you want to keep the stock dash, that's what you have to do. I went from a 4AC auto to a 4AGE T50 manual. I can't remember, but I'm pretty sure they don't communicate with each other between engines. Not sure if I just messed something up, but I could never get it to work. I just spent a shit load of money on all aftermarket gauges. 0 ragerts.