Tuning 1368cc 16v - Classic Panda 100HP

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Tuning 1368cc 16v - Classic Panda 100HP

I ain't no aerodynamics expert....

Co-efficients are one thing, but the drag of the object crucially depends on the frontal area as well. In this case, I imagine the Cinq to be smaller than the Panda, decreasing the actual drag figure even further relative to the Panda.

In the case of the Panda, the brick analogy could rarely be put to better use.

Hmm, I'm no drag cd expert either, but I'm sure I read that a bullet will actually travel faster backwards (blunt end forward) than pointy end first? Not sure how much frontal area affects overall drag CD but maybe not as much as it appears? Overall the Cinq has a much more smoothed in design compared with the Panda and I suspect that has more to do with its better aerodynamic rating. Then again, the mk1 Uno has a drag CD of something like 0.34 despite being equally chunky looking as a Panda from the front. Like the Cinq though its overall design is much more faired in/ smoother and it is subtley more curvaceous.

Still, a big power classic Panda is not about top speed, it's about embarrassing other much more expensive cars at the traffic lights :devil:
 
Hmm, I'm no drag cd expert either, but I'm sure I read that a bullet will actually travel faster backwards (blunt end forward) than pointy end first? Not sure how much frontal area affects overall drag CD but maybe not as much as it appears? Overall the Cinq has a much more smoothed in design compared with the Panda and I suspect that has more to do with its better aerodynamic rating. Then again, the mk1 Uno has a drag CD of something like 0.34 despite being equally chunky looking as a Panda from the front. Like the Cinq though its overall design is much more faired in/ smoother and it is subtley more curvaceous.

Still, a big power classic Panda is not about top speed, it's about embarrassing other much more expensive cars at the traffic lights :devil:

The Mk1 Uno has tight panel & trim gaps, the lights have a very slight tilt on the top, the bonnet slopes fairly steeply, the screens got a double curvature, it hasnt got traditional gutters & the whole car is more rounded off, where as the Panda has none of these things!

The Uno`s also significantly lower.

I`d guess that the Panda is 1 of the highest CO cars of the last 30 years, but I think thats a large part of its charm!
 
Even mk2 Puntos had hall-effect sensors for ABS that I might have been able to use, but the 1.4 engine only came out with the Mk3s. IMO there is no point using components like a different body ECU (where the problem actually lies) that requires me to use a different engine ECU that has been designed for a different engine. It will never run right, efficiently or powerfully, which is the 3 things I want from this setup. I would prefer to just have no speedo as apart from that, the car runs beautifully. Other problem is the cost of getting and testing this equipment. It is not cheap and this project is supposed to be ona budget. If I am prepared to spend £300 on ECUs and mucking about, then I should go the whole hog and get a 3rd party system really. I know it's not the same, but there we go.

It is a real shame that the ABS sensors suddenly changed design the month before the engine was introduced as I could be running ABS and stability control quite easily as well as all the speedo calcs working.

I have the car how I want it now, so development is going to slow down as I concentrate on other projects I have.

No, I was more thinking of you fitting compatible hub & flange assemblies fitted with the original Punto ABS sensors & loom onto the Panda if you couldnt get a compatable ECU.

If hubs arent available, could the original Panda hubs be drilled or bracketed to accept ABS sensors combined with Punto II or III ABS ring equipped flanges.

(I feel like I`m saying "flanges" too much *cough*) :eek:
 
No, I was more thinking of you fitting compatible hub & flange assemblies fitted with the original Punto ABS sensors & loom onto the Panda if you couldnt get a compatable ECU.

If hubs arent available, could the original Panda hubs be drilled or bracketed to accept ABS sensors combined with Punto II or III ABS ring equipped flanges.

(I feel like I`m saying "flanges" too much *cough*) :eek:
Flange is my favourite word.

The sensors pickup up from the wheel bearings! They are cleverly magnetised with many small polarising fields. However, I think you are right that a likely solution does lie in this area. Requires a lot of research. Would be amazing if I could have some Panda bearings made with this special treatment. Alll seems a bit unlikely though.

I do wonder if I could use a normal hall effect signal/ sensor(s) and convert this into a suitable voltage or whatever is required to fool the ECU into thinking it has these other type sensors.
 
Flange is my favourite word.

The sensors pickup up from the wheel bearings! They are cleverly magnetised with many small polarising fields. However, I think you are right that a likely solution does lie in this area. Requires a lot of research. Would be amazing if I could have some Panda bearings made with this special treatment. Alll seems a bit unlikely though.

I do wonder if I could use a normal hall effect signal/ sensor(s) and convert this into a suitable voltage or whatever is required to fool the ECU into thinking it has these other type sensors.

Unfortunately automotive computing is beyond me, I`m old school! hall effect flys straight over my head!

I`m just thinking how I`d be dealing with the engineering side.

What other cars share their wheel bearings or hubs with the Panda? even if its just say rear bearings from an Uno say, on the front of a Panda? I may then be able to work out which of the non-Uk models would have shared them & then work out if any of them were equipped with ABS.

I know the Panda was produced till 2003 in Italy, some of them seem to have air bags(or maybe its a huge pad!), if they have got airbags, they would in theory also have ABS, However I cant get a definitive answer....

If the Panda shares bearings with the Uno (I dont have a parts book to check), they are still in production, again, in theory they`d be equipped with ABS these days? Interestingly, the new Uno seems to have a rear transverse leaf spring! maybe derived from the Mk1 Panda?

I recon this comparing with other current (but old) cars are most likely to provide an answer.

The other alternative is to either machine the hub to accept the Punto bearing (assuming theres enough meat on the original Panda hub to accept it without being weakened) complete with flange (there, I got it in again!(y)) & mate it to either the Panda driveshaft or make hybrid shafts.

Cant remember what driveshafts you used now..

Anyway, thats what I recon!:D
 
Panda only shares bearings with the Y10. Pandas or Y10s were never fitted with ABS, even up until 2003. Bear in mind most small FIATS sold now don't have ABS as standard. Pandas did get steering wheel airbags though as you say. There was an Uno "Antiskid" model from memory which had ABS, but it's all academic since my ABS system is completely different from the "hall effect" of old systems. Hall effect in this case simply means a ferous metal passing near a sensor many times, so an ECU can work out the speed of a rotating shaft. My sensors don't work like that, so have to use New Punto or newer car stuff.

I used Y10 Mk2 shafts complete. Go straight in, with the CV joint being same part as Panda. You can modify Cinquecento shafts using a Panda CV joint to fit with a lathe.
 
Panda only shares bearings with the Y10. Pandas or Y10s were never fitted with ABS, even up until 2003. Bear in mind most small FIATS sold now don't have ABS as standard. Pandas did get steering wheel airbags though as you say. There was an Uno "Antiskid" model from memory which had ABS, but it's all academic since my ABS system is completely different from the "hall effect" of old systems. Hall effect in this case simply means a ferous metal passing near a sensor many times, so an ECU can work out the speed of a rotating shaft. My sensors don't work like that, so have to use New Punto or newer car stuff.

I used Y10 Mk2 shafts complete. Go straight in, with the CV joint being same part as Panda. You can modify Cinquecento shafts using a Panda CV joint to fit with a lathe.

I see! I know the Uno`s had a pretty antiquated ABS system that wouldnt have been compatable now.

I guess that leaves the possibility of machining the panda hubs for the punto hall effect bearings & pick up then?

Did you keep the hub/bearing/flange/driveshaft assys from the Punto?
 
I have the gearbox off the Panda at the moment whilst I fit the Quaife LSD I bought a couple of months ago. Just making the finial measurements to work out the correct shim for it and then it will all be back on sharpish for some testing.

Whilst the box is off, I thought I'd get the flywheel machined a bit. As you can see, it's hardly crazy, but now weighs around 4 Kg. It's a compromise like everything else on this car. Very aware to keep it a road-going, practical car.
 

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THAT picture is the lightened one?! Look slike notings been taken off :eek:

4Kg is quite light but should be fine :)
I think my bathroom scales are rubbish, so I better get it weighed properly before I stick it on. 4Kg seems too light having looked at others, including yours. I didn't specify to the machinist what I wanted from where. All they do is build engines, so I thought it best to say what I wanted it for and let them just do it. At £30 + VAT, it seems fair value. I suppose more from more tricky places would have cost more money as well.

Pull the head off and sort that while your there :D
What you on about? You think I need head work? I have thought about some fast road cams and a little porting, but perhaps in a years time or something. Don't wanna go crazy on this one. I have an Uno track day car in planning stage.
 
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A little bit of polishing, and tripple angle valve seats cost me £30 with me stripping the valves out etc. by myself.

Cams make a big diff. I run 1242 16v profile and it was a big improvment. But they cost a fair bot more.

If you are doing lots of work, then, nows the time to do it :)

What inlet do you run? the plastic 1368cc with pic injectors?
 
The discussion was about ABS as standard. I know that the 1.2 models did not come with ABS as I took some parts off a 2004 model without ABS. Either they changed the policy later into the run as MEP suggested or yours was an optional extra?

I know that alot of the base model Small Fiat's (Sciento's, Punto's and Panda's etc) didn't come with ABS as standard until late 2004/early 2005 I think.

I know Sisters Base spec 2004 Panda doesn't (much to my unhappyness when buying it), and believe the same for the base / entry spec Punto's upto the same age.

Jon.
 
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