7afe has a knock sensor, 4afe does not.

 

wiki it. they will tel you the difference.
if i remember right.
one has 3 speed the other 4 speed auto.
one has just 5 or 10 ore hp. makes a difference. check wiki about it. tells more specs.
since your hmong its just like haveing a cx and a dx. cx is the 4afe dx is the 7afe.

 

will FYI this is not honda.. all the stuff u told me i know bout it already n it not close to helping me on the harness.. plus i say specific about the differences about the motor so i dont really have to major change wire o yea wiki don't tell about no harness, senor etc. just liter n power which i know already..thank you very much for not helping at all.. o yea all hmong pple dont own a honda like myself..if i look at the cx ang the dx wat is the deference on the motor i bet u their exactly the same which is a d15 just optional on

 

lol hawjboiz thats funny.

 

they have VERY different torque curves.

 

hey ypu guys are hmong too... nice hmoob yaaj here... LoL! i know this thread is old, im just bored rite now but yeah... if you want, id say build a 7a block with a GE or GZE setup with it, and run turbo, but IMHO since we are hmong ppl this car is more for commuting and trying to show something different at fresno new years... LoL! but yeah the 7a is a better setup than the 4a is... like a d15 and a b18 something like that, but since you dont have a honda. its sad that were using honda as examples for our beloved toyotas...

 

you will need the harness and ecu.

 

4afe block look stronger it has 7 ribs like my ae101

 

7A-FE has a rigid aluminum upper pan and better bracing to the transmission. It's built to handle the extra torque better, both are plenty strong blocks.

 

Um this may sound noobish but cant u take the 7afe block and slap a 4afe head on it and end up witj the same thing minus the knock sensor but youll want the 7afe injectors there a lil stronger to make up for the bigger displacment than u wont have to change harness or ecu i think in theory

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They use the exact same head. The 4A ECU isn't going to run the 7A well, they have different maps (but it will run).

PS, this thread has been dead for 2 years.

 

Oops lol looked at the month and day forgot to look at year figured sense it was from march it was current lol my bad

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Hello peoples was wandering if transmission will fit from a 4afe to a 7afe???

 

Manual, yes. Auto, no. 4A-FE came with a 3 speed auto that was mechanically controlled, 7A-FE had an electronically controlled 4 speed. Not swappable unless you want to do a lot of work. Manual transmission is identical between the two.

EDIT: To answer your question more literally, yes the auto transmissions will fit on either engine. They just won't work without a new engine computer and wiring.

 

Yes

 

Wow. This thread is a real moldy oldie! OP was 04-01-2010, about 4 and a half years ago.

 

Yeah it happens too often. But saying "NECRO" and telling people to search doesn't seem to work, so might as well just answer the question right?

 

Halo, you should be working in the mechanical field. its like you have ae101 ALLDATA in your brain yo.

 

My brain absorbs all these facts that I can't use. I'm the master of useless facts haha. I'd love to work in the mechanical field though.

 

Don't assume you need to fully fund/loan yourself. When you have some spare time you should check out options for stipends and scholarships. Find a mentor who can guide you. I'm green to this area as my degree is in business and information management - but seek out someone who knows and can spend some time with you, even if it's unrealistic financially to undertake immediately. Knowing your options and enablers early on will make it much easier to plan for it to actually happen.

Life happens fast - and once you get a steady job with a steady pay check it takes a real plan to leave that behind and go get educated, otherwise it's just something on your wish list and that's where it'll stay

The "one step at a time" plan almost always fails at accomplishing big goals. You need to plan the journey first, and then focus on the individual steps once you know where you're going and why you're doing it.

And that just about sums up the differences between the 4A-FE and the 7A-FE.

 

I got through UCSB's ME programme with part-time job and student loans. Should've gone to SLO as they're more hands-on and applied. Regardless, it can be done. You can also apply for scholarships and grants. Lots of opportunities out there.

There are also companies that you can work for that'll fund college. The Navy also have programmes that'll pay and you'll only have to work for them for 2-years. Look up GI bill and related.

As the others said, set up a plan and roadmap. You'll find that breaking things down into smaller steps makes it much easier and won't look so daunting.

 

What really matters is being able to support yourself, and then acquire wealth. Use the wealth wisely, and it will keep you from needing to have a job. There are probably more ways to accomplish this without an ejuka$hun, than there are with one. And if you're ever going to make a sacrifice like working 80 hours a week,in order to get ahead, the best time is when you're young. It sucks as bad then, as it does when you're old, but your body is more up to the task.

Wow. Disraeli Gears...

 

I was the asshole rich kid who was there to party, and I still haven't left the immediate area...

 

La diferencia esta en los CC, que otra cosa? Bueno tiene bielas mas largas 132mm y el crankshaft es distinto, también la cabeza de los pistones tienen una mínima diferencia, el piñon del crankshaft es diferente ya que usa sensor de posiciones del crankshaft y tambien el block trae el sensor de detonacion...

Eso es lo que te puedo decir que trae diferente según mi experiencia con mi 7A-FE.....

Espero que te sirva de ayuda mi comentario..

Saludos!!

 

The difference is in the CC, what else? Well, it has 132mm longer connecting rods and the crankshaft is different, also the piston heads have a slight difference, the crankshaft pinion is different since it uses the crankshaft position sensor and the block also has the detonation sensor ...

That is what I can tell you that it brings differently according to my experience with my 7A-FE .....

I hope my comment helps you.

Greetings!!

Translated to help out.


Only later 7A and 4A have a crank position sensor, earlier ones were all in the distributor. I think later models got sequential fuel injection too instead of paired injection.

Solo los posteriores 7A y 4A tienen un sensor de posición del cigüeñal, los anteriores estaban todos en el distribuidor. Creo que los modelos posteriores también recibieron inyección secuencial de combustible en lugar de inyección pareada.

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