fabia 1.4 16v

[salihh]

Can the crank-connecting rod-piston of the 1.6 16v 105hp or 1.6 16v polo gti (bts-bcb-ajv) engine be fitted to the Skoda fabia mk1 1.4 16v (bbz-aub-bby) 101hp or 75hp engine? (without any operation - bolt on) If so, what parts do I need and is it possible to swap an afh head into this block? How much power can be obtained with an external brain? (with extra 270-280 degree camshaft)

1.4 16v engine 76,5 x75,6 

1.6 16v engine 76,5 x86,9  

only the stroke rate is different

[sepulchrave]

1 hour ago, salihh said:

Can the crank-connecting rod-piston of the 1.6 16v 105hp or 1.6 16v polo gti (bts-bcb-ajv) engine be fitted to the Skoda fabia mk1 1.4 16v (bbz-aub-bby) 101hp or 75hp engine? (without any operation - bolt on) If so, what parts do I need and is it possible to swap an afh head into this block? How much power can be obtained with an external brain? (with extra 270-280 degree camshaft)

1.4 16v engine 76,5 x75,6 

1.6 16v engine 76,5 x86,9  

only the stroke rate is different

 

No, it's a completely different engine.

 

ABT did a kit for the AUB or BBZ with cams, induction and piggyback ECU and it made about 125 BHP but it certainly wasn't cheap!

 

A pair of decent cams will cost about £500, induction kit £100 and a piggyback ECU about £500, then you have to get it mapped on a rolling road which will another £300.

 

As the Americans would say; the juice ain't really worth the squeeze.

 

[erikson]

BCB and AUB are different. AUB is aluminium and BCB is cast iron block. The head is the same only for ports I'm not sure.

It would be easier to take BCB lower end and put on AUB head, trottle body, intake manifold, cams and injectors.

The afh head is different only the intake manifold is the same.

 

I did not have the chance to open the BCB lower end yet to se it internals fit into AUB engine.

 

Scrich cams are the best for this engine. I'm now building aub engine with DBilass cams because the schrich werent on stock

But the specifications are the same

[fabdavrav]

 

On 25/09/2023 at 12:19, sepulchrave said:

 

No, it's a completely different engine.

 

ABT did a kit for the AUB or BBZ with cams, induction and piggyback ECU and it made about 125 BHP but it certainly wasn't cheap!

 

A pair of decent cams will cost about £500, induction kit £100 and a piggyback ECU about £500, then you have to get it mapped on a rolling road which will another £300.

 

As the Americans would say; the juice ain't really worth the squeeze.

 

 

For the record the ABT spec kept the stock induction box & stock exhaust, & the output was 140bhp....& you should know that as you were in these threads, but you were spending your time trolling me....

 

Info on the 1.4lt 16v AUB (100bhp) VAG engine, ABT tune for everybody:-

From a person who owned one:-

https://www.briskoda.net/forums/topic/227645-what-a-weird-day/?do=findComment&comment=2676903

QUOTE:-

Had an email from ABT today with a the list of mods I have no idea what level 2 is and I have asked for more clarification but I am waiting for a reply so for now, the list of mods.

ABT - POWER INCREASEMENT

Skoda Fabia (6J) 1,4 ltr. 16v from 99 HP to approx. 140 HP

consisting of: ECU (AEC) Remap level 2, bracket set, cable harness, iridium spark plugs, mounting

kit, camshaft upgrade level 2, ignition lead upgrade, air filter replacement and upgrade level 2

ABT - SUSPENSION INCREASEMENT

Skoda Fabia (6J) 1,4 ltr. 16v

consisting of: reinforced front and rear springs

END QUOTE:-

 

Link to an old thread & my comment

https://www.briskoda.net/forums/topic/224939-abt-fabia-14/?do=findComment&comment=2867937

QUOTE:-

And heres my list clarifying what ABT confirmed they did to the car....

In Plain english (this is a german company remember) the mods are,

Remap or piggyback ECU.

Iridium Spark plugs.

Camshaft upgrade.

Ignition lead upgrade.

Upgraded air filer element.

Stiffer lowered springs.

ABT nor any other company is going to make a "kit" from scratch IF there are mods/parts out there "off the shelf" as it would be idiotic!!

Eibach would have supplied the springs as they make the Skoda kits for the car

The Camshafts are probably Schrick as they make 244, 252, & 268 duration cams for the "roller" type heads fitted to the AUB engine.......(for the earlier "bucket" type heads fitted to 1996yr Polo 1.4 16v AFH they make 256, 264, 280, and a wild 292!!! this head is known as being more reliable and will take 8000rpm plus)

NGK are OEM fit for most VAG cars so it makes sense to use their Iridium spark plugs.

Magnacor are the only ones who list a "performance"...3 different types for that engine spark plug leads

ABT would have fitted all the stuff too their car and put it in their dyno test cell they have and custom written a map after long testing!!!!

The original thread caught the attention of some TROLLS unfortunately!....

END QUOTE

 

To the OP of this thread:-

The Magneti-Marelli ECU's fitted to the AUB engine are an absolute pig to tune.....

 

I had an AUB 16 100bhp Fabia...these were the engine mods I did:-

Mobil 1 engine oil                                                                               

Millers Oils 75w - 90w Fully synthetic Motorsport gearbox oil 

Magnacor Competition spec KV85 ignition leads  

NGK “Iridium IX” spark plugs BKR6EIX-11 (3764) (a recommended upgrade by NGK for the original fitment NGK BKUR6ET-10)

Green Cotton Twister 75mm air filter based sealed cold air system        

Remus S/S exhaust back box 2 x 92x78mm  

B.M. full S/S 200 cell cat’ and front pipe                

 

I had to later on remove the  200cell race CAT as the ECU kept throwing up "too lean" type codes. Basically the car was operating so well that it was producing very little emissions & the ECU was not seeing enough "scrub" of the emissions between the two Lambda sensors...& to "tell" the ECU that these result were acceptable would have required what was known as a custom "stage 2" (similar to the ABT one) re-write/flash...costing £££££ ......plus a trip down south to a specialist for the car...so I gave up on that & simply removed the race CAT!!!....

 

My old Fabia AUB engine which had about 120bhp...:-

 

Edited 16 December, 2023 by fabdavrav
clarity

[erikson]

I'm now building an AUB engine with:

268 cams

NGK Irridium spar plugs

CPS stamped pistons

Ecumaster ECU

Ported head

Trottle body from AFH (cable)

Injectors from AFH

Custom exhaust with racing CAT 

Worked Flywheel

Straight cut gearbox

 

We'll see what power will make..

[sepulchrave]

13 minutes ago, erikson said:

I'm now building an AUB engine with:

268 cams

NGK Irridium spar plugs

CPS stamped pistons

Ecumaster ECU

Ported head

Trottle body from AFH (cable)

Injectors from AFH

Custom exhaust with racing CAT 

Worked Flywheel

Straight cut gearbox

 

We'll see what power will make..

 

That ABT spec. never made 140 bhp but the porting and exhaust should get you to a genuine 150 bhp.

[fabdavrav]

2 hours ago, sepulchrave said:

 

That ABT spec. never made 140 bhp

 

& your proof is what??

[sepulchrave]

41 minutes ago, fabdavrav said:

 

& your proof is what??

 

Experience.

 

268 cams will not take you to 100 bhp per litre, a racier profile is needed.

[fabdavrav]

46 minutes ago, sepulchrave said:

 

Experience.

 

268 cams will not take you to 100 bhp per litre, a racier profile is needed.

 

 

So your saying ABT lied about their 140bhp Fabia version & yet you have no proof like placing one of their cars on a dyno & proving them wrong....

 

..........yet the person in the first post in this thread actual owns an ABT one & had it on a dyno & it was producing 140bhp...

 

 

 

You're still trolling the same as ever...11yrs later!!...

 

[Breezy_Pete]

...and you're still going for the bait...

[fabdavrav]

7 minutes ago, Breezy_Pete said:

...and you're still going for the bait...

 

TBH I didn't see this thread until post no.3 which was recent.......& then I noticed his post no2. stating..."ABT did a kit for the AUB or BBZ with cams, induction and piggyback ECU and it made about 125 BHP"

 

Which is utter rubbish & this to another member on the forum......!!!!

 

Thats the only reason I placed the correct info out...too many idiots giving out utter rubbish to unsuspecting people on the forums!!...

 

[sepulchrave]

I can assure you that naturally aspirated car engines making 100 bhp per litre are rare and use variable cam timing strategies and/or variable volume intakes to make them tractable at lower RPM due to the very high state of tune, most of them make peak power at close to 8000 rpm, they use ITB's and are VERY expensive to build due to needing completely forged internals.

I've personally seen a 1.6 litre Peugeot TU5JP4 making over 200bhp on an engine Dyno at 8800 rpm, however such an engine would be unusable in a road car since it would stall at every red traffic light.

 

We're talking about engines from Porsche, Honda, Ferrari, BMW etc.

 

I repeat, there is no way to get a lowly AUB lump to such a state of tune without going all in on head mods, cams, ITB's and a custom exhaust manifold and system, you'd also need forged Conrods and pistons since the stock items would not last long at 7500 rpm, which is what you'll need to be spinning to make 150 bhp.

 

Put crudely, a 50% increase in power requires the engine to pump 50% more air, so that 1.4 will need to pump like a 2.1.

 

This isn't rocket science but it is expensive and tuning companies tend to exaggerate to make sales.

[fabdavrav]

1 minute ago, sepulchrave said:

I can assure you that naturally aspirated car engines making 100 bhp per litre are rare and use variable cam timing strategies and/or variable volume intakes to make them tractable at lower RPM due to the very high state of tune, most of them make peak power at close to 8000 rpm, they use ITB's and are VERY expensive to build due to needing completely forged internals.

I've personally seen a 1.6 litre Peugeot TU5JP4 making over 200bhp on an engine Dyno at 8800 rpm, however such an engine would be unusable in a road car since it would stall at every red traffic light.

 

We're talking about engines from Porsche, Honda, Ferrari, BMW etc.

 

I repeat, there is no way to get a lowly AUB lump to such a state of tune without going all in on head mods, cams, ITB's and a custom exhaust manifold and system, you'd also need forged Conrods and pistons since the stock items would not last long at 7500 rpm, which is what you'll need to be spinning to make 150 bhp.

 

Put crudely, a 50% increase in power requires the engine to pump 50% more air, so that 1.4 will need to pump like a 2.1.

 

This isn't rocket science but it is expensive and tuning companies tend to exaggerate to make sales.

 

 

So basically 11yrs on & you're still calling ABT a bunch of liars, ...with no proof i.e taking their car & placing it on a known accurate dyno & proving it hasn't got 140bhp...

 

You'd look a fool in front of a Court of Law...

 

I just feel sorry for the new members on here that you are spouting rubbish to like the OP of this thread... 

 

 

 

[sepulchrave]

4 minutes ago, fabdavrav said:

So basically 11yrs on & you're still calling ABT a bunch of liars, ...with no proof i.e taking their car & placing it on a known accurate dyno & proving it hasn't got 140bhp...

 

You'd look a fool in front of a Court of Law...

 

I just feel sorry for the new members on here that you are spouting rubbish to like the OP of this thread... 

 

I'm not calling anyone a liar, I'm giving anyone interested an honest opinion based on first-hand experience because I'm not selling anything and have no vested interest.

 

I can tell you that changing to a 268 profile fast road cam together with the necessary fuel and ignition optimisation will net you a maximum 15% increase in power, mostly due to the raised RPM ceiling.

 

You're obviously not interested in learning anything so I'm not expecting you to listen, the post was for others who come here.

 

A Honda S2000 makes 220 bhp from a 2.0 engine, that's 110 bhp per litre, so an AUB in the same state of tune would make 154 bhp at 8000 RPM if it had enough inlet valve area and a strong enough bottom end.

 

Unfortunately it has none of those assets and no VTEC to stop it stalling and make it idle properly.

 

Dave you live in a complete fantasy world.

[erikson]

 

This fabia with aub engine gr.A spec is about 160bhp without ITB's and VVT. And with original exhaust and intake manifolds.

Vancik in Czech is stil building this engines.

This engines are for rally build and they must last a lot of km and they must be drivable on normal road and they are.

It is possible all depends od the cost

[sepulchrave]

11 minutes ago, erikson said:

 

This fabia with aub engine gr.A spec is about 160bhp without ITB's and VVT. And with original exhaust and intake manifolds.

Vancik in Czech is stil building this engines.

This engines are for rally build and they must last a lot of km and they must be drivable on normal road and they are.

It is possible all depends od the cost

 

I didn't say it wasn't possible, I said it was very EXPENSIVE, such an engine could cost 10,000 euro quite easily. Group A rules are very strict but the engine internals are all forged, special clutches and flywheels and gearboxes with LSD are allowed and such an engine would turn at least 8000 RPM to make 160 bhp.

 

Chucking a pair of fast road cams in a standard engine with a silly air filter and a remap will NOT give you a 40% increase, so no, I don't believe the ABT figure.

 

@fabdavravclaimed a 20% increase from a silly air filter and some magic plugs and leads!

 

Crazy.

[Paws4Thot]

5 hours ago, erikson said:

This fabia with aub engine gr.A spec is about 160bhp without ITB's and VVT. And with original exhaust and intake manifolds.

Vancik in Czech is stil building this engines.

This engines are for rally build and they must last a lot of km and they must be drivable on normal road and they are.

It is possible all depends on the cost

Critically important sentence now in boldface.

Yes that engine is "rally reliable" but achieving that means that it is stripped and rebuilt in full between events.

[fabdavrav]

9 hours ago, sepulchrave said:

 

Chucking a pair of fast road cams in a standard engine with a silly air filter and a remap will NOT give you a 40% increase, so no, I don't believe the ABT figure.

 

@fabdavravclaimed a 20% increase from a silly air filter and some magic plugs and leads!

 

Crazy.

 

Your above statements proving that you are still "living complete fantasy world." 11yrs on......as you've still not bothered (purposely) to read the exact posted engine specs of both the ABT car & my car...

 

You're just trolling other members of the forum now as you were 11yrs ago......& still basically calling ABT liars...

 

 

Edited 18 December, 2023 by fabdavrav

[sepulchrave]

1 hour ago, fabdavrav said:

Your above statements proving that you are still "living complete fantasy world." 11yrs on......as you've still not bothered (purposely) to read the exact posted engine specs of both the ABT car & my car...

 

You're just trolling other members of the forum now as you were 11yrs ago......& still basically calling ABT liars...

 

Suit yourself.

[J.R.]

I think he is calling just about every tuning company or rolling road operator with a vested interest liars and in my experience he would be correct 95% of the time without even looking at their claims.

 

But all the time there are people willing to swallow their claims the religion (and fighting) will continue.

[erikson]

The topic is over i know, but I would like to post an info on my build...

With a lot of stuff done on the engine it make 128whp on the dyno today.. I expected more with all the stories about ABT.. But is ok the main goal is to do a lot of kms with no issues

[sepulchrave]

29 minutes ago, erikson said:

The topic is over i know, but I would like to post an info on my build...

With a lot of stuff done on the engine it make 128whp on the dyno today.. I expected more with all the stories about ABT.. But is ok the main goal is to do a lot of kms with no issues

 

Good for you, it would be nice if you could post a picture of the Dyno chart so others can see the RPM you needed to spin for that result.

[erikson]

The engine is running quite OK with a good amount of torque. Now I need to thest it on the road to se the result. 

[sepulchrave]

Very good, peak power at 7000, peak torque at 5750 giving a working power band of 1250 rpm. Does it still idle ok or did you have to increase idle speed?

[erikson]

I converted it to drive by cable and put a screw to adjust idling. 

Idle speed is incrases a little bit primary for reasons that when the vent turned od it almost died. Primary is for this. 

Like i told i did not drive it yet to see how everything works