Corsa 1.7 DI

[bobisnotforsale]

How can i get more power out of my 1.7 natuarally apsirated corsa?
any ideas cheaper the better?

[HDi fun]

Are you absolutely certain it has no turbocharger?

If so then there really is very little you can do apart from the obvious ie. clean air filter, clean fuel filter. Fill it with decent fuel and run a charge of Forte Diesel Treatment through it. Clearly these steps will help with any engine.

All this will do is get it as close to standard as possible.

The sad fact is that naturally aspirated diesels are virtually impossible to tune. Increasing the fuel delivery won't help as there will not be enough air to burn it completely. That's where a turbocharger comes in handy. You can make a 2 litre engine breathe like a four litre one.

You might just be able to retrofit a turbo but the cost will be horrific as you'll need different manifolds and exhuast, different injectors. probably even different head and pistons to lower the compression ratio.

And if you did modify it to this degree then insurance could be a challenge.

Im afraid that naturally aspirated diesels were never really conceived for their performance capabilities. What they are very good at indeed is turning in exceptional fuel economy figures.

So you could look at this as a means to save up quickly and replace the car with something livlier altogether (which is what I'd do), making sure that you plug the fuel economy of your Di in the advert and get a really good price for it.

[bobisnotforsale]

lol
i might get a tenner for it.
iv got a 1.9tdi golf on the way

[Miniman]

In that case then wait for the golf, the corsa cant be that bad.

[HDi fun]

The 1.9TDi engines are quite pleasant. Personally I prefer the older 110bhp ones for their refinement. The PD units are quite rough.

All are tunable electronically. Avoid plug in boxes like the plague, or or any other nasty medical condition. Get it remapped via the ODB port. If that's not possible then a chip tune does much the same thing except that it will involve opening the ECU.

[pgarner]

what age is the corsa ?
the was a member on here not long ago saying they had a 1.7 diesel in the "C" body but according to parkers guide they were all turbos

[bobisnotforsale]

its on a V reg which is 1999.
origional shape.
they did do a 1.5tdi at that point but then when the next shape corsa came they put the 1.7 turbo in it.
its slow lol
what sort of cost am i talking for the chipping of the golf?

[HDi fun]

About £300 to have it remapped/chipped should cover it. There's a lot of Celtic fans on here. I'm one of 'em; they did a sterling job with my 2.2HDi

[pgarner]

yeah £300 to £400 depending on where you go.
along with celtic look at REVO APR custom code or jabbasport these 4 are all VAG specialist tuners out of the lot i think celtic tning is the cheapest