Technical 1.4 8 valve project Seicento
- Thread starter soozukisteve
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Technical 1.4 8 valve project Seicento
Pretty sure it'll fit the head, pretty sure it won't fit under the bonnet. You know the 1.4s are fly by wire?
They do fit onto the head just require a little choppy choppy for the water in and temp sender.
I have a complete one sitting here that doesn't look like it's going to get used now.
I would imagine it will fit under the bonnet as steve's has on the 1.4 engine.
Just to throw in aswell like I have said in a previous post the port matching is perfect and will flow better into the engine.
But main issue is the throttle body.
Thanks
I have a complete one sitting here that doesn't look like it's going to get used now.
I would imagine it will fit under the bonnet as steve's has on the 1.4 engine.
Just to throw in aswell like I have said in a previous post the port matching is perfect and will flow better into the engine.
But main issue is the throttle body.
Thanks
soozukisteve
New member
Mine is using the original sei inlet at the mo.If you could get a few pics up of the manifold you have from a few angles and particularly the throtle body arrangement,we might be able to come up with something.
I may consider trying the 1.4 manifold (which I didnt get with my engine) if it looks reasonably easy to modify for a standard cable tb.
Incidentally,does your manifold have the fuel rail also?
Having been out for a good drive this weekend it still feels slightly hesitant.I occasionally get the ecu light flashing at me and the obd telling me that I have the p0300 (random/multiple engine misfire) fault.Will get it on our diagnostic machine again this week to see if I can get anywhere, but there is a little voice in my head saying 'get a programmable ecu and throttle bodies/turbo'!Might have to sell one of my retinas or something to cover it tho!!
Opelkadett C
New member
I have picked up my 1.4 8v engine last saturday. I bought it for 125 euro, hopefully it is a runner 
.
I am afraid that the original 1.4 manifold is too big for my cinq engine bay (especially in the direction of the firewall). The 1.4 manifold measures about 24cm ( I refuse to use inches!) from mounting surface to the back of the manifold. The P75 manifold measureas about 24cm too, from the mounting surface to the brake servo pipe. And here is the problem, I know that arc had placed his brake servo pipe to the side of the manifold because it interfered with the fire wall.
(see pictures)
(The 1.4 manifold is about as high as the P75 manifold plus tb.)
Maybe I would have to remove my strut brace. When it doesn’t fit I will just use the P75 manifold. I think the 1.4 manifold is better for low down torque though.
I suggest that Todger trial fits his 1.4 manifold in his engine bay, because he has his engine lying in bits.
Because the original 1.4 tb (48mm) is fly by wire and I have no way of controlling it, I am planning to use the bravo tb (46mm.) It is about as big, is cable operated and has the same sensors as the P75 tb. I think it can be fitted to both manifolds with the help of a spacer plate.
I am sure soozukisteve that your sei tb is quite a bottleneck compared to the standerd 1.4 tb. Sorting that out would may cure your running problems.
About the head: the rocker over has got all kinds of attachments, therefore I think my head is the type with variable cam timing. I don´t know how to get this working so I think I just use the P75 head.
. I am afraid that the original 1.4 manifold is too big for my cinq engine bay (especially in the direction of the firewall). The 1.4 manifold measures about 24cm ( I refuse to use inches!) from mounting surface to the back of the manifold. The P75 manifold measureas about 24cm too, from the mounting surface to the brake servo pipe. And here is the problem, I know that arc had placed his brake servo pipe to the side of the manifold because it interfered with the fire wall.
(see pictures)
(The 1.4 manifold is about as high as the P75 manifold plus tb.)
Maybe I would have to remove my strut brace. When it doesn’t fit I will just use the P75 manifold. I think the 1.4 manifold is better for low down torque though.
I suggest that Todger trial fits his 1.4 manifold in his engine bay, because he has his engine lying in bits
.Because the original 1.4 tb (48mm) is fly by wire and I have no way of controlling it, I am planning to use the bravo tb (46mm.) It is about as big, is cable operated and has the same sensors as the P75 tb. I think it can be fitted to both manifolds with the help of a spacer plate.
I am sure soozukisteve that your sei tb is quite a bottleneck compared to the standerd 1.4 tb. Sorting that out would may cure your running problems.
About the head: the rocker over has got all kinds of attachments, therefore I think my head is the type with variable cam timing. I don´t know how to get this working so I think I just use the P75 head.
Attachments
Yea mine has all the feul rail, still has the fly by wire TB though. Fingers said in one of my previous posts that the rover k-series TB sits quite happily onto the manifold and that is cable. There are also posts by evo and kritip about using those aswell.
Unfortunately I won't be using the manifold anymore due to my project being put on hold until I can sort myself out (not financially though
)I have some pics of the port matching, they don't detail very well but they are spot on the money.
You can see where I have had to cut the mani for the water sender. Thats is on top of the head by the way.
Thanks
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Opelkadett C
New member
Todger, would you mind taking a picture where you trial fit the head with 1.4 manifold onto your block? (in your engine bay) . I am curious how many space you have left around the manifold. Thanks in advance.
. I am curious how many space you have left around the manifold. Thanks in advance.Unfortunately I can't. I don't have a means of putting the engine back into the car. I can roughly guess that you will have to remove the sound deadening for it to be a snug fit. It may be possible to fit without removal of it.
To have an induction kit fitted you would have to have quite a low 90 bend so it doesn't foul, but the manifold should be clear of the bonnet with a few CM's to spare.
I'll see if I can get my friend round with his sei and i'll trial fit the manifold onto his car and let you know how it goes.
Thanks
To have an induction kit fitted you would have to have quite a low 90 bend so it doesn't foul, but the manifold should be clear of the bonnet with a few CM's to spare.
I'll see if I can get my friend round with his sei and i'll trial fit the manifold onto his car and let you know how it goes.
Thanks
how snug is snug? is actually touching anything? remember the engine moves a bit under load.
I would imagine that if the deadening isn't removed that will get a bit of battering.
I will get my friend to come round so I can try it on his and get some pics. His car is off the road at the mo as apparently has a blown ECU so might be sometime over the weekend.
Thanks
I will get my friend to come round so I can try it on his and get some pics. His car is off the road at the mo as apparently has a blown ECU so might be sometime over the weekend.
Thanks
Opelkadett C
New member
Keep us updated when you have trial fitted the mani on your mates car, it would be much appreciated.
any more updates on this? did you sort out the loss of power and ecu light flashing problems?
soozukisteve
New member
Not had a lot of time to do very much over the last couple of weeks.
Im still having the ecu light flashing issues (multiple/random engine missfire) so essentially, im at the same point.
When I find time i am going to swap sensors and the ht side of the ignition and see if that helps at all.Im still not totally convinced that its something that cant be gotten around!
Im not sure what I should be seeing when I look at the live readings for the ign advance/retard. It does seem to be flicking aroung quite a lot from approx -5 to +15 at idle!I did think about the knock sensor seeing as the 1.4 has a higher comp ratio (11:1) and maybe the frequency of the combustion at that ratio making the ecu think that it is pinking??
I have tried the knock sensor from both engines and it made no difference.I will perhaps try plugging in the spare knock sensor and not bolting it to the engine to see what effect that has, but not being completely familier with the efi system, I dont know what other sensors may cause the timing the move around quite so much (maybe its normal?!)
I have taken a punt on a gp manifold I saw on ebay. The seller was useless at replying or giving me any useful info but it does look very much like the 1.4 8v!Maybe there is some way I can hybrid the two or use the gp fuel rail/injectors.Im clutching at straws a little bit but at least I will have something else to try...
I will keep updating as I work my way through but if I cant crack it before the summer, that turbo/mappable ecu may end up getting thrown on!
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soozukisteve
New member
So I'm pretty much at the end of trying to get it to run on the standard efi system.
I replaced the whole HT system with new bits and even tried using the 1.4 injectors.On the test drive it felt great.It had picked up a few hp and was running very smooth.I noticed a decent increase in torque at light throttle openings and it seemed to rev more willingly!
After an hour on the road and no flashing ecu light I thought I had finally cracked it.............but about a mile from home the ecu light began flashing at me again......b******s!!!!!!
I figure the ecu didnt throw a code while it was settling in but towards the end of the run when it had learned its settings it started again.
I have had a good look at the 1.4 manifold and I really dont think it will go on without chopping the sound deadening so dont want to do that.
Its looking like I will probably take the megasquirt/turbo route but have also been thinking about just running megasquirt with throttle bodies!
If anyone needs any info about the swap to date, please feel free to pm me.......
I replaced the whole HT system with new bits and even tried using the 1.4 injectors.On the test drive it felt great.It had picked up a few hp and was running very smooth.I noticed a decent increase in torque at light throttle openings and it seemed to rev more willingly!
After an hour on the road and no flashing ecu light I thought I had finally cracked it.............but about a mile from home the ecu light began flashing at me again......b******s!!!!!!
I figure the ecu didnt throw a code while it was settling in but towards the end of the run when it had learned its settings it started again.
I have had a good look at the 1.4 manifold and I really dont think it will go on without chopping the sound deadening so dont want to do that.
Its looking like I will probably take the megasquirt/turbo route but have also been thinking about just running megasquirt with throttle bodies!
If anyone needs any info about the swap to date, please feel free to pm me.......
did you read the codes from the ECU to see what it was moaning about?
soozukisteve
New member
Bloody p0300 again!!
I am led to believe that the p75 ecu can be remapped so there is a possibility that mine could be also but I dont know if I wanna throw any more dosh at it when I'm contemplating a programmable ecu?
I could try to use the original injectors again but I really feel that it is ,as I think was suggested earlier in the thread, an ecu issue.
I will have a search around regarding the ecu reprogramming and perhaps get a price but it will need to be done on a rolling road to really sort it so think the cost may be prohibitive!?
Has anyone any experience of these remapped standard ecus??...
Opelkadett C
New member
What ECU did you use eventually, the sei mpi one? If so, have you considered to use the p75 ECU? I think it will better suit the 1.4 8 valver.
soozukisteve
New member
I am using the original sei ecu.
I do have a p75 ecu actually, but i dont have the keys so would need the code removing.Its perhaps worth a go if i can get it de-coded cheap....
Am going to be doing this (the reprogramming) via a guy called Readyforbed on the forum. Worth a PM as v cheap.
