1969 fj40 3fe cylinder head on 2f block project

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About the new ECU. Heres the update! The ft450 with dash, mounted. Waaaaay better ECU than the ft300.

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New update. After fixing the crank teeth wheel and crank position sensor, mounting the electric fan, fixing the crank pulleys, and some other tweeks. I did a new run test on the Dyno. And the result was amazing!!!!! The previous run was the red one, and the latest the blue. The car continue to have 33x12,5 tyres with 15 inch wheels. Before, on the previous run the ecu was losing signal from the crank position sensor, that’s why the curve was so shaky. Now with all the work, everything works perfect, and the curve is beautyful.
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New update. After fixing the crank teeth wheel and crank position sensor, mounting the electric fan, fixing the crank pulleys, and some other tweeks. I did a new run test on the Dyno. And the result was amazing!!!!! The previous run was the red one, and the latest the blue. The car continue to have 33x12,5 tyres with 15 inch wheels. Before, on the previous run the eco was losing signal from the crank position sensor, that’s why the curve was so shaky. Now with all the work, everything works perfect, and the curve is beautyfull.
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Torque numbers?
 
It's probably a stupid question... do you have domed pistons in your 2F?
Just look at your 3fe head chamber and think if it fits with the domed piston.
It’s ok bro, there are no dumb questions. And the answer is no, I haven’t done anything to the pistons. I’ve just mounted the cylinder head just straight forward…..
 
Torque numbers?
As promised!!!!! here ive got both graphs. In Red color youll find the lastest run. In blue youll find the first run when i had the issues of signal in the cranck position sensor. The improvement is amazing! and the torq graph is amazing in the way that uve got almost full torque since you start presing the pedal in low revs. Note: the dyno is located in Bogota Colombia at 2600 meters above sea level. I believe that the numbers at sea level numbers should improve between 20% to 30%, thats what weve seen in other naturally aspirated engines. The set up still 33x12,5 R15 tyres, 5 speed, 3,7 ratio ring and pinion gears.

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Those numbers look great. I'm curious why not go off the 3f-e distributor for cam and crank signal?
I'm looking forward to have my 2f-e get up and running.
 
Those numbers look great. I'm curious why not go off the 3f-e distributor for cam and crank signal?
I'm looking forward to have my 2f-e get up and running.
Yeap and the car feels amazing!!!! Well, I didn’t have a distributor in good shape and didn’t find one also :s
I did try to get the signal from de distributor of the 2f, building a teeth wheel inside and mounting the sensor inside. But I failed and the signal wasn’t working well. So that’s why I decided to mount the teeth wheel behind the crank pulley.
 
Yeap and the car feels amazing!!!! Well, I didn’t have a distributor in good shape and didn’t find one also :s
I did try to get the signal from de distributor of the 2f, building a teeth wheel inside and mounting the sensor inside. But I failed and the signal wasn’t working well. So that’s why I decided to mount the teeth wheel behind the crank pulley.
So you used the 2f distributor? If that's the case, I get it.
Sobre todo es casi lo mismo que estoy haciendo. Lo diferencia es que usare haltech y el distribuidor de el 3f-e. Gracias!
 
So you used the 2f distributor? If that's the case, I get it.
Sobre todo es casi lo mismo que estoy haciendo. Lo diferencia es que usare haltech y el distribuidor de el 3f-e. Gracias!
Si yo intente modificar el distribuidor del 2f y montarle una rueda dentada por dentro y le monte la captadora. Mira te muestro fotos. Pero falle en el proceso. tu donde estas? En Colombia? Que haltech vas a colocarle? Tienes fotos del distribuidor 3fe que tienes?
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Si yo intente modificar el distribuidor del 2f y montarle una rueda dentada por dentro y le monte la captadora. Mira te muestro fotos. Pero falle en el proceso. tu donde estas? En Colombia? Que haltech vas a colocarle? Tienes fotos del distribuidor 3fe que tienes?
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Haltech 750 elite. Estoy en California. Deja te mando fotos en un par de horas que no estoy en casa.
This is a very nice setup. Very clean with coil near plugs and I would imagine it's like driving a whole diffrent vehicle with the extra power.
 
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Si yo intente modificar el distribuidor del 2f y montarle una rueda dentada por dentro y le monte la captadora. Mira te muestro fotos. Pero falle en el proceso. tu donde estas? En Colombia? Que haltech vas a colocarle? Tienes fotos del distribuidor 3fe que tienes?
View attachment 3534546View attachment 3534547View attachment 3534548

Haltech 750 elite. Estoy en California. Deja te mando fotos en un par de horas que no estoy en casa.
This is a very nice setup. Very clean with coil near plugs and I would imagine it's like driving a whole diffrent vehicle with the extra power.
YEAHHHH! thats a great ECU!!!1 i use a 750 on my racecar! are u going to use independent coils? or a single coil for all sparkplugs? the thing is that i didnot wanted to use a sigle coil. Thats why i did all this. and yes the feel is of a completly diferent car!!!1 its amazing!1
 
YEAHHHH! thats a great ECU!!!1 i use a 750 on my racecar! are u going to use independent coils? or a single coil for all sparkplugs? the thing is that i didnot wanted to use a sigle coil. Thats why i did all this. and yes the feel is of a completly diferent car!!!1 its amazing!1
Independent coils for sure. Thanks for the info
 
@gom2109 If you search "2FE" in thread titles from the 40, 60 and 80 sections, you'll find lots of info from others who have done this swap. I have 2 of them myself. 3FE head and EFI on 2F block puts the strong suits of the two engines together.

In my experience a balanced 2F bottom end is happy to 5000rpm (and maybe past when I wasn't watching the tach?).
My question is that did you use domed pistons with the 3fe head? What is the casting number on the new heads, (61040?).
 

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