Drop in rods for the ED30 / S3 / Cupra

[Hurdy]

Sorry about taking the thread off topic Jonny

[Janner_Sy]

back on topic,

from what i gather all you need to do to uprate the internals on the k04s seems to be the rods, as the pistons can handle the extra power.

what about the k03 engine.

ive squared away a k04 turbo now, so the conversion is on the cards, id also like to get water methanol, and i like the idea of the scrick cams. that could potentialy put my BWA engine above the 350hp mark if not even more.

if i was to uprate my internals would i only need the rods to reduce the likely hood of bending things or would the pistons or anything else need doing?

[Hurdy]

The pistons are also different on the ED30/S3/Cupra.

They give a compression ratio of 9.8:1 instead of the GTI/FR/VRs 10.25:1 (I think it is 10.25, but it maybe 10.5!!)

This enables the engine to allow more timing without knock, the GTI engine would be more prone to knock/detonation at higher outputs, which is one of the main reasons for going with a lower comp ratio with a BT conversion

[Janner_Sy]

so water meth would allow that advance of timing then without the chance of knock.  hmmmm maybe i could just throw some ed30 pistons in?

[jonnyc]

back on topic,

from what i gather all you need to do to uprate the internals on the k04s seems to be the rods, as the pistons can handle the extra power.

what about the k03 engine.

ive squared away a k04 turbo now, so the conversion is on the cards, id also like to get water methanol, and i like the idea of the scrick cams. that could potentialy put my BWA engine above the 350hp mark if not even more.

if i was to uprate my internals would i only need the rods to reduce the likely hood of bending things or would the pistons or anything else need doing?

The USP Motorsports car made 605WHP on drop in rods and stock 200hp 2.0T FSI pistons, so I would say that there fine..

But of course you need to bare in mind what John has already pointed out too, you wont be able to run as much ignition advance due to the higher CR but you will spool slightly faster as a result also, so its a bit of a balance between the two..

I would say just drop in a set of rods and steer clear of water/meth etc.. Its only one more thing to worry about, thats how I see it anyways.. I think, pump fuel, fill it and go.. 

[Janner_Sy]

thats good to know,

Id probably prefer the quicker spool, as it will make it more accessible in normal driving. Is it normally just the rods that arethe weak point and prone to failing when running higher power.

the highest powered k04 conversion ive seen on DD rollers is 324hp so if a good set of cams could give 340-350 then so i should be within the capabilities of the BWA internals if i just do the rods. 

I sometimes wish i bought the cupra id considered before the vRS. it'd be so much cheaper lol

[jonnyc]

thats good to know,

Id probably prefer the quicker spool, as it will make it more accessible in normal driving. Is it normally just the rods that arethe weak point and prone to failing when running higher power.

the highest powered k04 conversion ive seen on DD rollers is 324hp so if a good set of cams could give 340-350 then so i should be within the capabilities of the BWA internals if i just do the rods. 

I sometimes wish i bought the cupra id considered before the vRS. it'd be so much cheaper lol

I made 351hp on DD rollers, going off others results that would have been close to 400hp at Superchips lol.. A true 360hp is very possible with the K04.. :)

Pistons seem to be very strong, but as I have said before, rod failures have only been seen with other contributing factors, all of which would have probably fired even an after market rod too!

[danishmkvgti]

i have pictures at home from the german forum, an austrian guy had custom tune on his K04 converted GTI, a really bend rod, i'll find it when i get home 

[jonnyc]

i have pictures at home from the german forum, an austrian guy had custom tune on his K04 converted GTI, a really bend rod, i'll find it when i get home 

Exactly, custom tune.. They ended up running silly amounts of ignition advance without the OEM protection in the map, which caused the problem..

[danishmkvgti]

first of ed30 compared to gti pistons



then the rsult of bad programming

[yin]

And i thought dans rod was bad


any body got a pic of a cupra/ed30 rod

[gillm]

nothing compared to my old 9a in my mk1

[jonnyc]

any body got a pic of a cupra/ed30 rod

I have S3 rods and pistons at the garage, ill gets some pics posted up tomorrow..

S3 and ED30 pistons and rods have the same part number

nothing compared to my old 9a in my mk1

HAHAHA!!  Love it..

[yin]

nothing compared to my old 9a in my mk1

  if you going to bend it do it properly 

[yin]

any body got a pic of a cupra/ed30 rod

I have S3 rods and pistons at the garage, ill gets some pics posted up tomorrow..

S3 and ED30 pistons and rods have the same part number

Cheers Johnny do you know if the Cupra has the same part number also