Technical My Cinque 1,2 MPI 6speed

[ReproBoy]

Hi there

I would like to introduce my NEW Cinque

Engine:
1242 cc Punto 75
MPi intake
MPi injectors
palio intake cover

284°custom Camshaft - 10.5mm stroke
lowered head - 0,9mm
lowered profile of cylinder head valves
polished head valves upper part
bigger exhaust holes in head
1,2 16V clutch
6 speed gearbox from Punto 55S
Custom made ECU upgrade.
Rev Limiter moved to 7600, more fuel from 3500rpm up to 130% on rev limiter.

I haven´t finished yet, I am expecting finish approx in 1 month
some photos and comments -

http://italiancars.org/fiat/diskuze/index.php?msg_group=5&action=show&id=173040

 

[Steve 75]

Looking good.

How did you mount the seats? - was it just box-section bolted through the original mounting points, then holes drilled in the right places to mount the donor rails?

Always wondered what the best way was to change seats in a car.

 

[ycming]

Looking good.

How did you mount the seats? - was it just box-section bolted through the original mounting points, then holes drilled in the right places to mount the donor rails?

Always wondered what the best way was to change seats in a car.

I done it using the cinq runners, then 2 square pipe across drill holes to match the seat.

Lovely work there !!

Ming

 

[ReproBoy]

For those who don´t know about translator from google

some words are "slang", so It will not translate them correctly, but for beginning, I think it´s enough..

http://translate.google.com/transla...msg_group=5&action=show&id=173040&sl=cs&tl=en


I also have Novitec springs an alloys originally from Barchetta (15"), so I will add photos during month

 

[ReproBoy]

Please help. I have problem with electrical management.

ECU is model without immobiliser, cinque originally had immobiliser.

I had plugged wires exactly as I did last time with my red cinque (which I sold).

Problem is: on diagnostic, everythink looks an works OK, but there is no carry signal from rpm sensor. Sensor is good, wiring is good, other sensors are good but injectors are not responding an also no spark from plugs do you have a scheme between wiring cinque sporting and Punto 75MPI ?

Thanks for answer

 

[ReproBoy]

I decided to convert my 8V cento to 16V... I don´t try this at home

1) 8V lump removal

2) 16V installing - new piston

3) 16V head

4) hybrid timing belt - 8V and 16V

timing belt 1108cc, bearing 16V, cam & crankwheel 8V
Camshaft wheel has to be modded, pushed by 5mm and machined inner circle from 29 to 30 mm

Spec:
Throttle body Brava 1,6 16V facelift
Polished head, adjusted valve touching

I finished today, so I have to drive 500kilometers carefully because of new components.

Overal: much better sound, torgue. We will see in future

 

[whitz]

fancy giving as much info as possible on wiring for everyone please

Ash

 

[ycming]

This might be daft, but isn't the 16v twin cam ?

Ming

 

[whitz]

This might be daft, but isn't the 16v twin cam ?

Ming

yep twin cam in the 9th/10th picture yo can see the two inter meshed gears

Ash

 

[ycming]

But only 1 cam pulley? Am pretty confused here.

Ming

 

[cc1]

The second cam is driven by gear on the other side of the head cover.

 

[ycming]

The second cam is driven by gear on the other side of the head cover.

IS that standard or ?

Ming

 

[cc1]

IS that standard or ?

Ming

Yes.

 

[ReproBoy]

All top components are from Fiat Brava 1,2 16V.
Because I had good crankshaft and engine itself, I decided not just only swap engines, but rebuilt it.

All electrical systems are from Punto 75MPI which is modded by my custom made ECU upgrade. Brava Has also another MAP, temperature sensor, etc. , but with piece of creativity you can mount Punto 75 components at all.

I insert air temperature sensor instead of original MAP sensor.
Also, Fuel Rail has got only 1 pipe so you have to deliver 3bar pressure to it. I had use external fuel pressure regulator from Lancia Delta Integrale from scheme as I draw:

and It works
Yesterday I drowe for 50kilometers and engine is going quiter and quiter, it appears it will be OK

Someone says that after instalation of 16V engine there is lack of space inside engine bay. Nonsense. There is more space to mount alternator / starter motor.

 

[clock34]

i might also be stupid but if you have kept the 8v bottom end then how would you have more space for alternator ect? haha you cant just create space!

 

[rallycinq]

i might also be stupid but if you have kept the 8v bottom end then how would you have more space for alternator ect? haha you cant just create space!

The way the induction fits on the 16V head allows more room behind the engine where the alternator and starter sit.

Cheers

SPD

 

[rallycinq]

But only 1 cam pulley? Am pretty confused here.

Ming

Not all twinks have the two pulleys on the front, as pointed out before.

Cheers

SPD

 

[ycming]

Sorry to hijack.

What drives the second pulley if is on the other side?

How does the timing stay intact?

Thanks
Ming

 

[Todger182]

It's 2 same toothed pulleys on the right hand side of the head, and the front cam is driven by the belt then drives the second cam on the pulley.

Simple and clever really

Thanks

 

[whitz]

It's 2 same toothed pulleys on the right hand side of the head, and the front cam is driven by the belt then drives the second cam on the pulley.

Simple and clever really

Thanks

also to add to that the exhaust cam (belt driven cam) the intermeshed gear has an anti-backlash device, which is another small gear incorporated on the gear, this is slightly off compared to the other teeth

in short it removes play in the teeth so if it was to backfire it softens the blow (though an internal device) rather then sheering off some teeth

Ash