Panda MTD Vs GP MTD

[Liam]

Now I know that both 1.3 versions of these cars have 70 ponies for the Panda and 90 for the GP.

My question is what is the difference that makes these 20 more horse?

Management stuff or physical engine mcgubbins?

Liam

 

[H2DaE]

Probably just the "management stuff"

I know the Stilo JTD has a bigger turbo than the Punto JTD but I'm not aware this is the case with the Panda

 

[Jai]

cant have the baby p stealing thunder and sales from big brother gp, same engine same power, in lighter smaller body, hence better perfomance.....management wouldnt stand for it......

 

[jug]

throttle body differences are often a factor, but the ecu maps are likely to be the main difference. in theory it wont be hard at all to convert the panda to 90bhp. in the past i've swapped throttle bodies and ecu's on a 1.8 escort to get from 115hp spec to 130hp, everything else was identicle on the engines.

 

[lalli]

the difference is clear. and a huge difference. the 70/75 bhp mjtd has a fixed geometry turbo where as the 90bhp mjtd has a variable geometry turbo aka VGT.

 

[dan-the-man]

the difference is clear. and a huge difference. the 70/75 bhp mjtd has a fixed geometry turbo where as the 90bhp mjtd has a variable geometry turbo aka VGT.

Yep, thats the difference between the 80bhp Stilo JTD and the 115bhp Stilo as well

 

[JTD Monkey]

the difference is clear. and a huge difference. the 70/75 bhp mjtd has a fixed geometry turbo where as the 90bhp mjtd has a variable geometry turbo aka VGT.

What they said

 

[hmallett]

Going a bit off-topic, but what geometry varies in the turbo? It's all fixed pretty solidly (apart from the bearings) isn't it?
I think I read somewhere that the Panda had less horses because the gearbox was weaker...
H

 

[Gav]

I read on Italiaspeed last week about a new 75bhp version to be combined with a dualogic gearbox revision I think for the Panda.

Fiat want to produce a reliable engine, that will last years in standard tune. Remapping obviously allows it to create more power, torque and/or cut fuel usage, emissions, but is likely to reduce the life of an engine. Of course, any modern engine should last for hundreds of thousands of miles, even fairly poorly serviced. By having a different turbo Fiat can maintain the relaibility while giving more power etc.

Nice to see the 1.3 in the Idea is now 90bhp

 

[smtvlive]

variable vanes turbos- at lower speeds vanes open up in the turbo to blow in more air. As the speed increases the vanes close so less air goes in per rev - vanes are spinning faster remenber so you dont want to blow the top of your engine. Therefore more power at lower revs.

My Marea JTd had a leak in the vacuum chamber which regulates the opening of the vanes and i was getting an overboost error as when i hit 3000rpm they were still open under certain conditions

cheers

 

[Wee Smurf]

Going a bit off-topic, but what geometry varies in the turbo? It's all fixed pretty solidly (apart from the bearings) isn't it?
I think I read somewhere that the Panda had less horses because the gearbox was weaker...
H

That's what I heard... It's been tuned down for the gearbox...

 

[ChrisUK]

The 75bhp 1.3L Mjet has a Super Charger while the 90Bhp is a Variable Geometry Turbine(Turbo). Im not sure but the 70bhp version in the panda might be a similar unit to the one in the GP.