Percyhahn said:

i estimate that after intercooler and gsr my cat will be pulling maybe 110bhp, but should be as quick as stock 1.9 as its lighter i think.

Click to expand...

1.9 is still running an extra 20bhp standard


Weight BHP P/W

1.3 1090 110 100.9174

1.9 1205 130 107.8838

So you still lose out in power to weight. Plus then you have to think of the torque, you need another 70lbft to get the the standard 1.9 output

adamcot said:

1.9 is still running an extra 20bhp standard


Weight BHP P/W

1.3 1090 110 100.9174

1.9 1205 130 107.8838

So you still lose out in power to weight. Plus then you have to think of the torque, you need another 70lbft to get the the standard 1.9 output

Click to expand...

a remap would get me some of that torque, but wouldnt the weight difference close that gap further? its over 100 (kg?) lighter, which is a fair amount of weight. ok maybe not as fast as a stock 1.9, but not far off im betting.
il have to wait and see when i get the upgrades . thats the only accurate way of saying.

another 84.8 on top of the 110 and you might catch me up :nerner:

matty_oakley said:

another 84.8 on top of the 110 and you might catch me up :nerner:

Click to expand...

haha, wait till we get to a corner ,
are the mapped m jets any good on corners or are they pretty piggish?

I think what percyhahn is trying to say is that.... with the power he will have, the gearbox ratio on his will be able to beat or if not give a challenge to a standard 1.9 0-60ish, if not more.

No matter how much you tune there will always be something quicker. So with people thinking whats the point on a 1.3, in my eyes it the amusement that when you give your friends (with a bigger engined car) a challenge and they see you keeping up with them if not in front of them, they got the humiliation of a 1.3 rather than a 1.9 beating them, especially being a Diesel

Its not always bigger is better

Percyhahn said:

a remap would get me some of that torque, but wouldnt the weight difference close that gap further? its over 100 (kg?) lighter, which is a fair amount of weight. ok maybe not as fast as a stock 1.9, but not far off im betting.
il have to wait and see when i get the upgrades . thats the only accurate way of saying.

Click to expand...

Remaps and tuning boxes don't mix :yuck:

Glenny22 said:

I think what percyhahn is trying to say is that.... with the power he will have, the gearbox ratio on his will be able to beat or if not give a challenge to a standard 1.9 0-60ish, if not more.

No matter how much you tune there will always be something quicker. So with people thinking whats the point on a 1.3, in my eyes it the amusement that when you give your friends (with a bigger engined car) a challenge and they see you keeping up with them if not in front of them, they got the humiliation of a 1.3 rather than a 1.9 beating them, especially being a Diesel

Its not always bigger is better

Click to expand...

:yeahthat:

i know, il take out the box when that time comes. i know it doesn't mix, but if you got a remap with the box connected wouldn't the remap incorporate the box's performance as well?

Glenny22 said:

I think what percyhahn is trying to say is that.... with the power he will have, the gearbox ratio on his will be able to beat or if not give a challenge to a standard 1.9 0-60ish, if not more.

Click to expand...

How do you know that? My car has a 6 speed box I believe the 1.3 only has 5?

adamcot said:

How do you know that? My car has a 6 speed box I believe the 1.3 only has 5?

Click to expand...

Someone on this forum said they had 115hp in their 1.3 75, and 0-60 was around 9. But it will top out about 105 where as yours would keep going.

90bhp versions have 6

Would he not also loose less torque through the gearbox which would also help?

Glenny22 said:

Would he not also loose less torque through the gearbox which would also help?

Click to expand...

The gearbox is not the only point in which power can be lost. Its all dependent on the set up of the system, not necessarily the fact that the gearbox has more ratios.

adamcot said:

The gearbox is not the only point in which power can be lost. Its all dependent on the set up of the system, not necessarily the fact that the gearbox has more ratios.

Click to expand...

I didnt mean the gear ratios helping torque, i ment because he has one less gear he will loose less torque overall bringing the 0 - 60 times closer.

I also know that there are many other things that can reduce the power output onto the road. My friends clio was had 75bhp (flywheel) and only 25 (at the wheels). lol

Glenny22 said:

I didnt mean the gear ratios helping torque, i ment because he has one less gear he will loose less torque overall bringing the 0 - 60 times closer.

Click to expand...

My car probably wouldnt get out of third before it got to 60 Its not as simple as if you have less gears you get to 60 faster, the ratios are different for each gear. Without knowing them, its impossible to say how much faster it would be.

adamcot said:

My car probably wouldnt get out of third before it got to 60 Its not as simple as if you have less gears you get to 60 faster, the ratios are different for each gear. Without knowing them, its impossible to say how much faster it would be.

Click to expand...

Right we are crossing paths here....

I ment that as he has that one less gear (if you had the same power) his power at the wheels would be more than a 6 speed (presuming the same ratios) because of the power loss through the gearbox therefore helping 0 - 60. Not because he has 1 less gear he will get to 0 - 60 quicker.

Im not trying to argue that the 1.9 is going to be slower, its just it would be a lot closer as the gear ratios would help to keep up with the 1.9 but obviously no-where near the top end speed. We can only do 70mph anyways

If you had his gearbox on, im sure your car would just consistently light up the wheels, if not then you would be changing gear even before your turbo spools But like you said without knowing the ratios you wont know what is quicker.

I wonder if anyone knows where to find out the ratios?

Glenny22 said:

I ment that as he has that one less gear (if you had the same power) his power at the wheels would be more than a 6 speed (presuming the same ratios) because of the power loss through the gearbox therefore helping 0 - 60. Not because he has 1 less gear he will get to 0 - 60 quicker.

Click to expand...

No, its not necessarily true. The transmission loss is not just about the amount of gears the box has. Its possible the 1.9 could have less transmission loss as a % then the 1.3 75, as the rest of the system needs to be taken into account including the clutch and diff set up

If adam had a 1.3 gearbox on it would go BANG very very quickly.

punto_matt said:

If adam had a 1.3 gearbox on it would go BANG very very quickly.

Click to expand...

thats only bacuse he has a vxr gearbox designed for torque. mines a little more delicate