420bhp hybrid k04

[micky 32]

My Ko4 converted vRS BWA is still fine after a year and 2 months and HUGE mileage I have a spare ko4 engine but i wouldn't bother changing it unless i have problems.

 

[micky 32]

However i kept my settings as per JKM, spot on AFR etc etc

 

[flyeon]

This time of year forget it, even the TT can spin up a bit in 2nd with this weather.

Summer though completely different story, and a stage 2 plus cupra will be neck and neck with your old s4 if rolling from 30

No updates as of yet but someone could always eail backdraft alex and see how hes doing.

I would be very surprised if it would be neck and neck from 30. From 30 surely the Cupra would have problem putting the power down as the S4 pulls away. Maybe a rolling start from 50 or 60 would favour the Cupra?

 

[Deleted member 53697]

I would be interested to see how long a BWA 2.0T would last with no upgraded internals with double original power though especially if its pushing a similar ftlb torque wise

Isn't it widely regarded that the stock internals can cope with a maximum of 450bhp? Should be ok on 400bhp right?

 

[Al]

I would not be willing to bet my engine on it. Several engines have blown head gaskets and had piston ring issues with less power than that.

 

[Poverty]

I would be very surprised if it would be neck and neck from 30. From 30 surely the Cupra would have problem putting the power down as the S4 pulls away. Maybe a rolling start from 50 or 60 would favour the Cupra?

3rd gear, 30mph and my cupra used to beat 400hp evos, neck and neck with a m6, 996 turbo and slightly behind a tuned cls 55 amg.

 

[vRSy]

Isn't it widely regarded that the stock internals can cope with a maximum of 450bhp? Should be ok on 400bhp right?

dont mistake the K03 TFSI and the K04 TFSI engines. the k04 varient has a lower compression ration, as well as stronger bottom end, thus is capable of good power. The k03 TFSI i would want to run above 350hp personally

 

[DanGB]

Isn't it widely regarded that the stock internals can cope with a maximum of 450bhp? Should be ok on 400bhp right?

Its torque thats bends rods, as well as bad tuning!

I bent a rod on my BWA engine at around 400hp and around 400lbft torque

 

[Deleted member 53697]

dont mistake the K03 TFSI and the K04 TFSI engines. the k04 varient has a lower compression ration, as well as stronger bottom end, thus is capable of good power. The k03 TFSI i would want to run above 350hp personally

I'm not confusing the two. I understand the difference between the two engines.

I am just quoting other people. A guy at Revo say they have several GT3071r cars running up to 450bhp on standard internals. I'm not saying that this is a good thing or that they will remain reliable, just that currently they are coping with that power.

Also JonnyC, who has vastly more experience with this engine than myself, has stated I'm sure more than once that the internals were designed to handle a maximum of 450bhp.

Admittedly, a GT3071r is less torquey than a K04... Maybe that is the problem??

 

[Poverty]

VAG running around with 450hp mules during development of the S3 sounds about right.

The 2.5 tfsi was being pushed to over 700hp in development for example.

Like dan says though its the torque and or bad mapping that bends things.

Evo guys are running over 500hp on engine internals rated at 430hp for example. Some of these guys know they risk failure but they are nutters and want to find out at what point their engine will let go.

 

[vRSy]

I'm not confusing the two. I understand the difference between the two engines.

I am just quoting other people. A guy at Revo say they have several GT3071r cars running up to 450bhp on standard internals. I'm not saying that this is a good thing or that they will remain reliable, just that currently they are coping with that power.

Also JonnyC, who has vastly more experience with this engine than myself, has stated I'm sure more than once that the internals were designed to handle a maximum of 450bhp.

Admittedly, a GT3071r is less torquey than a K04... Maybe that is the problem??

but thats exactly my point. what engine have they bolted the GT3071 turbo onto, the k04 or the k03. All his BT projects have been on the k04 variant and not the k03.
As dan says his GT28 turbo bent rods on his k03 BWA pec engine,

 

[GolfRS]

Admittedly, a GT3071r is less torquey than a K04... Maybe that is the problem??

Well that is not entirely true, and i don't understand why people keep saying this..

The GT3071R is less torquey than the K04 because THEY TUNE IT THAT WAY so that the rods can be saved.They can also do that to the K04, but then it would feel really weak since it doesn't carry that power to the upper revs.

Having said that, getting a GT3071R and "detuning" it to use on a stock motor is a useless mod IMHO.Either tune the K04 or install rods and go all the way...

But here comes the next issue, and it's that of TRACTION...How good are 480 bhp when you can only put down let's say 400 on the road ?FWD cars are only fun up to a certain HP.After that you are only wasting tires or going WOT with 4th and 5th gear...Not my kind of drive...

 

[Al]

What he said ^^^^^^

 

[Poverty]

Ttrs all the way it is then

 

[Al]

Ttrs all the way it is then

If you have man uggs, man bags, shaped eyebrows and a hair dryer

 

[vRSy]

vRS carl posted up a pic of the TT-RS head rests, which amused me

 

[Poverty]

vRS carl posted up a pic of the TT-RS head rests, which amused me

Dont knock it hairdressing as given me a good living and has allowed me to purchase the 2nd best handling car audi make!

 

[Al]

the 2nd best handling car audi make!

According to who/what?!

 

[Poverty]

According to who/what?!

A chap known as r5t.

R8 is the best, rs5 too heavy, rs4 too heavy, rs6 no chance. The only thing that really limits the tt rs is the built in understeer. Set of arbs, haldex race controller and the car is so neutral handling it's crazy. With a remap it's Nissan gtr quick, does quicker quarter miles than a gallardo and when going by the german vln series according to the car developer audi have limited the Ttrs to 400hp and it's running fwd mode aswell so that it doesn't get too close to the r8

 

[flyeon]

3rd gear, 30mph and my cupra used to beat 400hp evos, neck and neck with a m6, 996 turbo and slightly behind a tuned cls 55 amg.

From a rolling start I would not expect to have had a problem with a 400hp evo, m6 or (standard) 996 turbo either But the Cupra deserves respect and seems to be very quick indeed. The instant torque and traction that I had with the S4 is offset by the lower weight and less drivetrain loss of the Cupra it seems.

Your TT RS is a very impressive beast too. Relatively light, 4wd and huge amount of torque on tap.