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Old 25-09-2024, 05:43 PM   #181
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Default Re: Puma Axed except for EV

I've never quite understood why the minimum size for a modern 4 cylinder, seems to be around 1.2L?

With the latest tread towards smaller engines with turbos, there's a lot of manufacturers coming out with 3-cylinder jobbies.
It seems to me that's a big sacrifice, considering the loss of balance.

Don't get me wrong, most of them are doing a great job to overcome the inherent problems. I'm just not sure I understand the need?

In something like a Puma, it's not a question of space. And I'm not sure the cost savings would be worth it.
It would be lighter, but it seems like there's a technological resistance. Perhaps beyond a certain point, making a 4-cyliner smaller just doesn't deliver the fuel savings??
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Old 25-09-2024, 07:38 PM   #182
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Default Re: Puma Axed except for EV

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Originally Posted by Crazy Dazz View Post
I've never quite understood why the minimum size for a modern 4 cylinder, seems to be around 1.2L?

With the latest tread towards smaller engines with turbos, there's a lot of manufacturers coming out with 3-cylinder jobbies.
It seems to me that's a big sacrifice, considering the loss of balance.

Don't get me wrong, most of them are doing a great job to overcome the inherent problems. I'm just not sure I understand the need?

In something like a Puma, it's not a question of space. And I'm not sure the cost savings would be worth it.
It would be lighter, but it seems like there's a technological resistance. Perhaps beyond a certain point, making a 4-cyliner smaller just doesn't deliver the fuel savings??
Cost per unit is what makes the 3-cylinder an attractive proposition to a car maker. As you say, we are now at the point where dropping a cylinder doesn't mean dropping performance. So, why have that extra cylinder when they can chop cost out of the equation.

Think of it like this -

- Smaller block, less material
- Smaller head, less material
- Smaller crank, less material
- Smaller oil pan, less material
- Smaller valve cover, less material
- Smaller intake and exhaust manifolds, less material
- One less piston, rod and associated hardware
- Four less valves, valve springs, followers.
- Smaller gaskets, seals ect.

Then, assembling all of that is quicker on the line. Overall, the cost per engine is lower, which adds up over the course of the engine's lifespan. We are talking hundreds of millions of dollars in savings here. In theory, servicing costs will be lower for the customer as well.

So, I guess the question becomes, why carry around that extra cylinder when its absence for the most part wont be noticed by the customer.

For the record, I don't want to own a 3-cylinder vehicle, but I don't hate the format either because the Ford versions are really nice to drive and sound good too.
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Old 25-09-2024, 07:44 PM   #183
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Default Re: Puma Axed except for EV

I got no problem with the three cylinder turbo job, would rather see naturally aspirated 4 cylinder engines discontinued and replaced with turbo 3 cylinder engines.

You can make the same amount of torque but bring it in from 1500-2000 RPM on the turbo 3, instead of at 4000 RPM on a naturally aspirated 4 cylinder engine.

Makes for a way nicer car to live with on a daily basis with the turbo 3.

With what the Fiesta ST is like to drive with its peak torque coming in from 1500 RPM and maintaining it all the way out to 5000 RPM, makes for a very nice manual car to drive.
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Old 25-09-2024, 08:00 PM   #184
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Default Re: Puma Axed except for EV

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I got no problem with the three cylinder turbo job, would rather see naturally aspirated 4 cylinder engines discontinued and replaced with turbo 3 cylinder engines.

You can make the same amount of torque but bring it in from 1500-2000 RPM on the turbo 3, instead of at 4000 RPM on a naturally aspirated 4 cylinder engine.

Makes for a way nicer car to live with on a daily basis with the turbo 3.

With what the Fiesta ST is like to drive with its peak torque coming in from 1500 RPM and maintaining it all the way out to 5000 RPM, makes for a very nice manual car to drive.
The interesting thing I noticed was how quiet the 3-cylinder EcoBoost is compared to a typical naturally aspirated 4-cylinder, even at the top end. Less moving parts, less noise. The turbo would naturally muffle the noise as well.
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Old 25-09-2024, 08:02 PM   #185
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Default Re: Puma Axed except for EV

I have had two different Vw service guys tell me that the Vw 1 litre three cyl petrol ( which comes in at least three times of ke/torque) is the best motor Vw make.
The top tune is 85 kw and 200 nm torque at 2000 rpm
Whereas in my Puma
The Ford three cyl is 92 kw and 170 nm torque at 1400 or 1500 rpm
I haven’t driven the 85 kw tune
But my wife’s Polo is 70 kw and 175nm and is really laggy from take off while the Puma leaps out of the blocks
Maybe auto gearbox issues
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Old 25-09-2024, 08:03 PM   #186
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Default Re: Puma Axed except for EV

Three tunes of kw/torque
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Old 25-09-2024, 08:13 PM   #187
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Default Re: Puma Axed except for EV

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The Ford three cyl is 92 kw and 170 nm torque at 1400 or 1500 rpm
I haven’t driven the 85 kw tune
But my wife’s Polo is 70 kw and 175nm and is really laggy from take off while the Puma leaps out of the blocks
Maybe auto gearbox issues
Thats the beauty of the Ecoboost engines, diesel like torque down low but power up top and unleaded servicing and running costs, they have a super wide torque band which just makes for beautiful cars to drive.


That 92KW/170NM is the same figures as the WZ Fiesta Sport, same engine I guess
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Old 25-09-2024, 08:17 PM   #188
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Default Re: Puma Axed except for EV

Yeah they are nice
Although hills dull the Puma the extra suv pork ( body weight) slows it up
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Old 25-09-2024, 08:21 PM   #189
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Default Re: Puma Axed except for EV

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Yeah they are nice
Although hills dull the Puma the extra suv pork ( body weight) slows it up
1106kg for the WZ Fiesta Sport with the same engine
1291kg for the Puma

Thats not as bad as I thought it was, but its still a good ~280kg or there abouts.
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Old 25-09-2024, 09:23 PM   #190
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Default Re: Puma Axed except for EV

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Cost per unit is what makes the 3-cylinder an attractive proposition to a car maker.
I get that it's cheaper, but is that always a good thing?

That said, I wonder if part of the cost saving is utilising existing head designs and technology, rather than designing an entirely new engine of that size.

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I got no problem with the three cylinder turbo job, would rather see naturally aspirated 4 cylinder engines discontinued and replaced with turbo 3 cylinder engines.
But that's not really my question.
If you want to turbo-charge a 1.0L engine, why not do it to a 1.0L 4-cylinder.
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Old 25-09-2024, 11:39 PM   #191
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Default Re: Puma Axed except for EV

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The interesting thing I noticed was how quiet the 3-cylinder EcoBoost is compared to a typical naturally aspirated 4-cylinder, even at the top end. Less moving parts, less noise. The turbo would naturally muffle the noise as well.
I used to have a Honda euro 2.4 vtec manual, and when revved above 7,000 rpm there was this nice mechanical hard edged rattle that sounded f**ing great.

My Fiesta St standard had a throbby deep lower bass sound, but revving it was blah- there was no hard brassy edge or mechanical rasp and rattle of the good type like a good sporty vtec wrung out.

I then put on an alloy Mountune intake induction elbow to replace the plastic OEM intake elbow that had a restriction. What I immediately noticed was the engine sounds a bit more brassy edged even driven normally, has lost some of the standard engine muddy low sound, and when I rev it out it gets that mechanical rasping rattle edge sound that is great.

With a Dreamscience stage 1 99+ tune with a mix of e85 running at some 240 odd hp with 385 nm, the engine is a lot more brassy mechanical rasping edged which sounds great revved, which I just love. It certainly now is not a quiet engine, and I am talking induction sound only when revved.

I think plastic is a great sound deadener on critical "trumpet " sound elements on an engine, but alloy metals on these "trumpet" sound components transmits the higher brassy edge of sound so much better.
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Old 25-09-2024, 11:56 PM   #192
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Default Re: Puma Axed except for EV

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But that's not really my question.
If you want to turbo-charge a 1.0L engine, why not do it to a 1.0L 4-cylinder.
A couple of things, a 3 cylinder has more character than a 4 cylinder.

Also, a 3 cylinder often is designed with stroke etc and tuned to produce more torque but less power than a similar sized 4 cylinder engine. So it feels like a big lazy engine because of that characteristic.
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Old 26-09-2024, 08:43 PM   #193
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Default Re: Puma Axed except for EV

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I used to have a Honda euro 2.4 vtec manual, and when revved above 7,000 rpm there was this nice mechanical hard edged rattle that sounded f**ing great.

My Fiesta St standard had a throbby deep lower bass sound, but revving it was blah- there was no hard brassy edge or mechanical rasp and rattle of the good type like a good sporty vtec wrung out.

I then put on an alloy Mountune intake induction elbow to replace the plastic OEM intake elbow that had a restriction. What I immediately noticed was the engine sounds a bit more brassy edged even driven normally, has lost some of the standard engine muddy low sound, and when I rev it out it gets that mechanical rasping rattle edge sound that is great.

With a Dreamscience stage 1 99+ tune with a mix of e85 running at some 240 odd hp with 385 nm, the engine is a lot more brassy mechanical rasping edged which sounds great revved, which I just love. It certainly now is not a quiet engine, and I am talking induction sound only when revved.

I think plastic is a great sound deadener on critical "trumpet " sound elements on an engine, but alloy metals on these "trumpet" sound components transmits the higher brassy edge of sound so much better.
I have to say, I personally found the Puma's engine to be too quiet for my tastes, that throbby note only makes itself heard at the top end. It also falls on its face above 5000 rpm, so it feels and sounds flat. But..................the average Puma target customer would not care about such things.

(Not a criticism, just my observations)
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Old 27-09-2024, 12:04 AM   #194
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Default Re: Puma Axed except for EV

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I have to say, I personally found the Puma's engine to be too quiet for my tastes, that throbby note only makes itself heard at the top end. It also falls on its face above 5000 rpm, so it feels and sounds flat. But..................the average Puma target customer would not care about such things.

(Not a criticism, just my observations)
DFB I have not driven a Puma, but what you say about falling on its face above 5000 rpm I felt the same in the standard ST, but I felt it came off boil at about 5,500 rpm in the ST.

The ST needs a good stage 1 tune like the Dreamscience tune, foam filter and alloy mountune throttle body. It smooths out the initial boost curve and extends the torque and power very very nicely into the upper revs.

It is now a totally different drive in terms of power delivery and sound.

With the standard ST I got bored with the engine, with the mods now, if the temp is below 18 degrees odd it is a blast, and in the wet if I push it in 3rd it is actually quite scary WOT.
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Old 27-09-2024, 08:34 AM   #195
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Default Re: Puma Axed except for EV

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I have to say, I personally found the Puma's engine to be too quiet for my tastes, that throbby note only makes itself heard at the top end. It also falls on its face above 5000 rpm, so it feels and sounds flat. But..................the average Puma target customer would not care about such things.

(Not a criticism, just my observations)
As a Puma driver with regard to minimum near $400 minimum speeding fines in Qld yes I dont go to 5000rpm.
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Old 27-09-2024, 01:49 PM   #196
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Default Re: Puma Axed except for EV

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I used to have a Honda euro 2.4 vtec manual, and when revved above 7,000 rpm there was this nice mechanical hard edged rattle that sounded f**ing great.

My Fiesta St standard had a throbby deep lower bass sound, but revving it was blah- there was no hard brassy edge or mechanical rasp and rattle of the good type like a good sporty vtec wrung out.

I then put on an alloy Mountune intake induction elbow to replace the plastic OEM intake elbow that had a restriction. What I immediately noticed was the engine sounds a bit more brassy edged even driven normally, has lost some of the standard engine muddy low sound, and when I rev it out it gets that mechanical rasping rattle edge sound that is great.

With a Dreamscience stage 1 99+ tune with a mix of e85 running at some 240 odd hp with 385 nm, the engine is a lot more brassy mechanical rasping edged which sounds great revved, which I just love. It certainly now is not a quiet engine, and I am talking induction sound only when revved.

I think plastic is a great sound deadener on critical "trumpet " sound elements on an engine, but alloy metals on these "trumpet" sound components transmits the higher brassy edge of sound so much better.
Did you have to do anything more to it to run the E85? Eg replace lines/fuel pumps
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Old 27-09-2024, 01:51 PM   #197
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Default Re: Puma Axed except for EV

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I get that it's cheaper, but is that always a good thing?

That said, I wonder if part of the cost saving is utilising existing head designs and technology, rather than designing an entirely new engine of that size.


But that's not really my question.
If you want to turbo-charge a 1.0L engine, why not do it to a 1.0L 4-cylinder.
Sure, but why stop there, why not superchargers and turbos on everything? Imagine the S650 Mustang but hot vee turbo setup like BMW/Mercedes/Porsche/Cadillac V8s.

I'm pretty happy to take forced induction where its offered, I don't see the 1L Ecoboost as a bad thing in entry level commuter cars,

Problem is the entry level commuter car option from Ford is the Ranger.

If the choice is NA 4 cylinder or turbo 3 cylinder, turbo any day of the week.

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DFB I have not driven a Puma, but what you say about falling on its face above 5000 rpm I felt the same in the standard ST, but I felt it came off boil at about 5,500 rpm in the ST.

The ST needs a good stage 1 tune like the Dreamscience tune, foam filter and alloy mountune throttle body. It smooths out the initial boost curve and extends the torque and power very very nicely into the upper revs.

It is now a totally different drive in terms of power delivery and sound.

With the standard ST I got bored with the engine, with the mods now, if the temp is below 18 degrees odd it is a blast, and in the wet if I push it in 3rd it is actually quite scary WOT.
Same with my Fiesta ST, wants another gear post 5000 RPM but I think thats to do with the standard setup, mine has the Mountune MP215 options package ticked with the remap and lower airbox change. Mines the older 1.6L 4 cylinder Ecoboost though not the 1.5L 3 cyl Dragon.

Doesn't like long drives though before heatsoak, factory intercooler is pox, if you drive it for 300-500km+ it really struggles or if you get mid 20s and above you can feel the power loss through heatsoak but thats standard Ford Europe job, no different to my old TDCI Focus, I put a big intercooler on that and no more heatsoak dramas.

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Did you have to do anything more to it to run the E85? Eg replace lines/fuel pumps
High pressure fuel pump for the DI setup can't keep up with much more juice, thats why everyone has to run ethanol blends on stock cars.

Nostrum does an upgrade kit for the WZ Fiesta ST:

https://nostrum.mybigcommerce.com/1....fuel-pump-kit/

Also needs a fuel pressure sensor upgrade as the factory fuel pressure sensor can't read above 200 BAR (that upgraded pump can run 240 BAR plus).

Last edited by Franco Cozzo; 27-09-2024 at 02:02 PM.
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Old 27-09-2024, 02:04 PM   #198
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Cheers Franco, saw black Focus wagon in the wild yesterday, damn it looked mint, could be quite happy tootling boards around in that and enjoying motor/handling tbh, wet belt or no. I guess if you are forewarned you can be proactive.

Can 1.5L 3 cyl run on E85? Anyone done it?
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Old 27-09-2024, 02:09 PM   #199
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Cheers Franco, saw black Focus wagon in the wild yesterday, damn it looked mint, could be quite happy tootling boards around in that and enjoying motor/handling tbh, wet belt or no. I guess if you are forewarned you can be proactive.

Can 1.5L 3 cyl run on E85? Anyone done it?
asagaai a couple posts above seems to be doing it on his WG Fiesta ST, blend though probably because of the OEM fuel system limitations.

Change that high pressure fuel pump and I bet it'll be able to run on E85 no dramas.
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Old 27-09-2024, 04:11 PM   #200
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asagaai a couple posts above seems to be doing it on his WG Fiesta ST, blend though probably because of the OEM fuel system limitations.

Change that high pressure fuel pump and I bet it'll be able to run on E85 no dramas.
Big call
Lol
Goodbye warranty
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Old 27-09-2024, 04:37 PM   #201
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Default Re: Puma Axed except for EV

Just checked the 182bhp Dragon 1.5 on 2020 Focus on the eflexfuel site

https://eflexfuel.com/en#vehicle-selection

and got not compatible with their system

Reason: Dual > DI- and MPI injection
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Old 27-09-2024, 04:44 PM   #202
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Big call
Lol
Goodbye warranty
His WG is already modified and my WZ has 240,000km on it, so what warranty
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Old 27-09-2024, 05:00 PM   #203
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A couple of things, a 3 cylinder has more character than a 4 cylinder.
You say that like it's a good thing.
Personally I prefer my cars not sound like chainsaws.

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Also, a 3 cylinder often is designed with stroke etc and tuned to produce more torque but less power than a similar sized 4 cylinder engine.
Very small 4 cylinder engines tend to be very over-square. Often sharing the same bore and head characteristics with their larger volume siblings. Whilst that has long been their Achilles heal, in the modern context it makes them well suited for hybridisation and even low-rev turbo boosting.

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So it feels like a big lazy engine because of that characteristic.
3 cylinder engines have to be low-reving, because they shake their guts out at high revs. Again, not a good thing.
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Old 27-09-2024, 05:32 PM   #204
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His WG is already modified and my WZ has 240,000km on it, so what warranty

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Cool, thanks, surprised the prime mover is not a tri-drive
Yes that did cross my mind
You are not running Fiesta on E85 though - or are you?
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Old 27-09-2024, 05:34 PM   #205
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Yes that did cross my mind
You are not running Fiesta on E85 though - or are you?
No, because my closest E85 servo is 50km away, however my Caprice is set up for it already, from cylinder heads with stainless steel valves, to fuel pressure regulator, fuel pump and injectors that are all E85 compatible matched with a very strong ignition system (8x 'LS2 Truck' coils)
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Old 27-09-2024, 05:35 PM   #206
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Cheers Franco, saw black Focus wagon in the wild yesterday, damn it looked mint, could be quite happy tootling boards around in that and enjoying motor/handling tbh, wet belt or no. I guess if you are forewarned you can be proactive.

Can 1.5L 3 cyl run on E85? Anyone done it?
Just buy one and sell it before 125000kms
I had an Lz 1.5 - engines were supposed to hand grenade- moved it on at 130000 never had any issues with it - mine was manual - did hear of locals my way having them blow up early with auto gearboxes.
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Old 27-09-2024, 05:36 PM   #207
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Yes that did cross my mind
You are not running Fiesta on E85 though - or are you?
How did Trev s post get in there?
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Old 27-09-2024, 05:38 PM   #208
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Default Re: Puma Axed except for EV

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Just buy one and sell it before 125000kms
I had an Lz 1.5 - engines were supposed to hand grenade- moved it on at 130000 never had any issues with it - mine was manual - did hear of locals my way having them blow up early with auto gearboxes.
Seems to be an issue globally with Ecoboost paired with auto box, where as the manual ones don't seem to have as many issues.

Maybe due to auto wanting to lug engine down low on the regular, causing long term issues.
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Old 27-09-2024, 05:56 PM   #209
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Seems to be an issue globally with Ecoboost paired with auto box, where as the manual ones don't seem to have as many issues.

Maybe due to auto wanting to lug engine down low on the regular, causing long term issues.
Yes you might be on the money on that one.
The autos are focussed on fuel use and NOT a sensible rpm level.
I often have to swing puma into low as the auto is not changing down early enough
I can see a manual Swift in the picture provided I can get in and out - the simplicity and lack of over controlling driver safety systems is attractive
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Old 27-09-2024, 05:58 PM   #210
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Default Re: Puma Axed except for EV

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Sure, but why stop there, why not superchargers and turbos on everything? Imagine the S650 Mustang but hot vee turbo setup like BMW/Mercedes/Porsche/Cadillac V8s.
Good god, NO!!!

Those hot-vee V8's sound appallingly bad, especially the BMW's with the stupid buzzy noise they pump through the audio system. Sadly, JLR are using BMW V8's to replace the glorious supercharged AJV8. Aston Martin now use that 4.0 AMG engine. I really don't understand the appeal of those engines.

What you prefer, this V8.......................



This one, doesn't even sound like a V8........................



Or these, pure naturally aspirated sound..........................





In the case of the last two, who cares if they are slower without forced induction, you would never tire of listening to those naturally aspirated V8's.
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