Frankenstein engine thoughts.....
Posted: Tue Jul 14, 2015 5:32 pm
Just some rambling thoughts....
It is my understanding (bit it would need to be verified for definite) that the later diesel direct injection Ford Ranger engines use the same engine blocks as the earlier Bongo/Ranger engines. Which would mean it would bolt into a Bongo but the heads are much bigger so it wouldn't sit between the seats without a lot of engine cover shaping if indeed it actually will fit at all.
Interestingly there is also a 3-litre version of the later Ranger engine which iirc has the same bore size but longer stroke. If piston deck heights were compatible you could use the earlier pistons from the Bongo with a Bongo head to make a 3-litre Bongo diesel.
Also the RHV4 VJ38 variable geometry turbo from the later Rangers from the pictures I have seen would bolt up to a Bongo exhaust manifold. This would give a greater and broader range of power if the variable geometry system can be controlled effectively. I haven't been able to determine yet if the variable geometry actuation is by boost pressure like a wastegate or by vacuum. Need to research a bit more
I know have tracked down a normally aspirated Ranger Diesel inlet manifold which has the intake in the middle of the manifold which I believe will help create more even flow to all cylinders, I am opening the ports on the inlet manifold into the head as on all Bongo/Ranger inlet manifolds are smaller than the ones in the head so either the ports in the head made smaller (which may help torque) or as I am going to do open up the manifold for better flow. I know have some material to make a heat shield gasket to reduce heat transfer into the incoming charge.
I am mounting the inlet manifold upside down to fit and routing the boosted air from the turbo through a heat exchanger and round the back of the block to the inlet manifold.
The air filter setup I have utilises a ford ranger airbox pipe to a Pipercross Venom enclosed filter which will eventually have a cold air feed from the front of the Bongo when I remove the intercooler pipework
My head is ported any way but would like to go for a new head as I have some ideas to gain more swirl for better combustion using porting, seat and cam modifications.
Russ
It is my understanding (bit it would need to be verified for definite) that the later diesel direct injection Ford Ranger engines use the same engine blocks as the earlier Bongo/Ranger engines. Which would mean it would bolt into a Bongo but the heads are much bigger so it wouldn't sit between the seats without a lot of engine cover shaping if indeed it actually will fit at all.
Interestingly there is also a 3-litre version of the later Ranger engine which iirc has the same bore size but longer stroke. If piston deck heights were compatible you could use the earlier pistons from the Bongo with a Bongo head to make a 3-litre Bongo diesel.
Also the RHV4 VJ38 variable geometry turbo from the later Rangers from the pictures I have seen would bolt up to a Bongo exhaust manifold. This would give a greater and broader range of power if the variable geometry system can be controlled effectively. I haven't been able to determine yet if the variable geometry actuation is by boost pressure like a wastegate or by vacuum. Need to research a bit more
I know have tracked down a normally aspirated Ranger Diesel inlet manifold which has the intake in the middle of the manifold which I believe will help create more even flow to all cylinders, I am opening the ports on the inlet manifold into the head as on all Bongo/Ranger inlet manifolds are smaller than the ones in the head so either the ports in the head made smaller (which may help torque) or as I am going to do open up the manifold for better flow. I know have some material to make a heat shield gasket to reduce heat transfer into the incoming charge.
I am mounting the inlet manifold upside down to fit and routing the boosted air from the turbo through a heat exchanger and round the back of the block to the inlet manifold.
The air filter setup I have utilises a ford ranger airbox pipe to a Pipercross Venom enclosed filter which will eventually have a cold air feed from the front of the Bongo when I remove the intercooler pipework
My head is ported any way but would like to go for a new head as I have some ideas to gain more swirl for better combustion using porting, seat and cam modifications.
Russ
