Quote:
Originally Posted by praful Bingo! This is exactly what a larger audience would be looking at, a slight bump to the already existing setup rather making an monster of it.
This is what I don't like on programs like top gear. The way they look at tuning is big things and patronise us - who can't afford these cars.
On the 1.2 Grande Punto a properly designed air intake revision makes it possible (have proven it on numerous cars) that you can in top gear accelerate from 1400 on a slight incline. Overall power increases to a bit, which makes the car that little bit more pleasurable to drive not even at the cost of your kidney.
One more 1.2 8V customer here waiting to see how this works out! |
I look forward to my visit in just two weeks to see the Palio in the flesh with an open bonnet for a change.
Quote:
Originally Posted by pramodkumar CPH, Question to you, can the 1.2 motor be converted to a DOHC? is there a bolt on head available? if yest can the stock ECM handle the change or we require and ECM as well?
I dont own a fiat as of now but i like the palio(stile) very much.
Pramod |
The block of the DOHC is identical with the block of the SOHC. The differences ayre the oil pump housing because of the wider timing belt. This requires a wider tining belt pulley on the crank. The oil pump housing doesn't need to be changed if you can manage to move the rpm sensor about 15mm away from the engine and securely attach it. It is needed because the phonic wheel moves further out with the crank pulley.
You also need to change the timing belt tensioner, inlet manifold, exhaust manifold, some wiring and if you have cable throttle the cable.
Depending on what year Palio you have, the engine might have cable or electronic throttle. To keep it on the more simple side you better stay with one oer the other. Try not to change from cable to electronic or vica versa.
Also it is imperative to use the 16v head bolts. And preferably use the metal head gasket over the old type. This would require different torque setting and a different tightening procedure (which I can tell you when it comes to it).
Internally are a few differences too. The pistons need some pocketing or replacing by the 16v ones with 16v conrods.
Re-mapping of the ECU can be a bit of a dog and depends largely on which of the heads/inlet manifolds you are using.
Considering the cost involved for the machining, it might be much more advisable to keep the 8v head and do some magic to it. Within reasonable cost, your engine can easily be brought to what the 16v does out of the box and 100 - 120bhp is possible without touching the bottom end.
Alternatively you could look for an engine out of a rear ended GP or Linea ,where you can either pick up the 8v, which is a fairly straight job or you get the Linea 16v and have it ready to go in only with adding the external bits.
More infoon tuning you can find here:
:: Performance Fiat :: What's Under Your Bonnet? :: Quote:
Originally Posted by clevermax CPH: I've heard that a simple remap would bring up the power up in a GP T-Jet to something close to 147 Bhp. Question: Can we reach 200 bhp on T-JEt with an Abarth turbo and probably with a few more modifications? (I've read it somewhere)
Was just imagining what it will be like, driving a 200 horse power GP with a bit more stiffened suspension, and a low pro tire
And yes, waiting for your answers on the 1.2 8V SOHC queries |
The T-Jet being a turbo is much easier to improve in performance than a normally aspirated. Unfortunately the 120 engine is not going above 160bhp because the turbo runs out of puff, no matter how good the air intake and the exhaust is. The 120 are usually around the 130 - 135bhp.
With the Abarth turbo/Bravo 150 we have with different modifications reached in excess of 185bhp. This is where the turbo is at its limit.
Currently I am working on a friend of mine's T-Jet that we have converted to a Abarth SS, which is at the moment at 207bhp. Due to the problems with the ECU, which means much more than re-mapping we have not been able to finish it. We are looking forward to extract about 225 - 230bhp before we need to upgrade the turbo.
If someones pockets are deep enough over 350bhp can be achieved. I have got on package ready for it.
BTW, I am working on your enquiry.