300lb-ft on standard rods is the 'limit'? think again.

[MexxT]

In the future im planning to get a rod upgrade, but for now it is fine by me.

A lot of people are running 300+ lb-ft on stock rods in the netherlands. perhaps better fuel?
less detonation?

 

[virdi]

Bill, on the 1.8T would you say rods are a must or uprated exhaust valves?

....or would recommend both.?

 

[Nautilus]

Stock (sodium filled) exhaust valves, on my AUQ engine, when the head was removed at 70k kms, were like new. No burning, no pitting, no carbon deposits.

Exhaust valve can go for 2 reasons:

1. huge EGTs, due to poor fueling or detonation. The "mushroom" of the valve melts around the edges, deforms and does no longer seal against the seat. Which brings it in prolonged contact with hot exhaust gases and deforms even more, until the engine runs like crap and a valve job is needed. This is rare on 1.8Ts for a range of reasons.

2. valve breaking in two at the point where the stem and the "mushroom" fit together. 1.8T valves are made from 2 halves united by friction welding, with drilled stem filled with sodium, and they are definitely not made for very high rpms, the engine is calculated for mid-range torque, and under prolonged high rpm running (that is, above 6500 rpm for long time) it may break. This happens rather often on racing engines running 8000 rpm or higher.

Valves are to be replaced, together with new guides and uprated springs, if the engine has to run at high rpms for long time (circuit racing, for example).

~Nautilus

 

[aaron-gardner]

IMO if u got the engine open do the valves aswell because that's the next weak point. Crank and pistons are forged already and should be suitable for most applications.

 

[ReDBull]

So WMI, large FMIC, oil cooler, regular , servicing, high octane fuel and mechanical sympathy are the bear minimum for a remapped car.
Maybe I should wait until I fit rods and recondition large port head before getting mapped?

 

[virdi]

So WMI, large FMIC, oil cooler, regular , servicing, high octane fuel and mechanical sympathy are the bear minimum for a remapped car.
Maybe I should wait until I fit rods and recondition large port head before getting mapped?

No, don't be silly. You only need to do all of that if you are going to change the turbo and your aiming for 330+

 

[ReDBull]

Or near 300 on a standard k04. I just hate the thought of my engine going bang with my wife and kids in the car. I'd only ever be allowed to drive a diesel Golf again if that happened

 

[Phillc]

The mapping is a massive contributor to the rods bending though, keep the power delivery smooth and avoid aggressive maps with low down large power/boost spikes

 

[ReDBull]

I've spoken to he who should not be named in Hinckly about mapping. I plan to do all the mods anyway but can't decide whether or not to carry them all out before mapping or just the first part. I also want to fit a relentless 3" DP sports cat, custom cat back and Relentless V3 manifold.
I keep getting told that rods can go any time at any state of tune which makes me think I should wait until the rods have been done.
Also new spark plugs and coil packs have just jumped to the top of my list!

 

[6th.replicant]

... 3. Be careful to keep the EGR and cam chain tensioner working in top-notch condition.

What is an EGR - something to do with Exhaust Gas Recirculation, a valve, if so, where is it located? Does an EGR need to be serviced or cleaned?

And can you please clarify: "keep the... cam chain tensioner working in top-notch condition" - is there a maintenance/service schedule for the cam chain tensioner or are you referring to renewal?

Thanks

 

[Phillc]

What is an EGR - something to do with Exhaust Gas Recirculation, a valve, if so, where is it located? Does an EGR need to be serviced or cleaned?

And can you please clarify: "keep the... cam chain tensioner working in top-notch condition" - is there a maintenance/service schedule for the cam chain tensioner or are you referring to renewal?

Thanks

AFAIK the Cupra doesn't have a EGR i thought it was only the diesels that had that, some LCR's have a EGT sensor?? There is no way to service or maintain the cam chain tensioner, you can only make sure that the oil is changed regularly and with good quality oil, it is susceptible to oil starvation though so maintaining a clean pick up pipe is wise, i will be changing mine every 12 months i think, its under £10 so its just the faff of having to drop the sump.

 

[ReDBull]

... maintaining a clean pick up pipe is wise, i will be changing mine every 12 months i think, its under £10 so its just the faff of having to drop the sump.

Something else to go on the list.
Which oil are people using?

 

[6th.replicant]

AFAIK the Cupra doesn't have a EGR i thought it was only the diesels that had that, some LCR's have a EGT sensor?? There is no way to service or maintain the cam chain tensioner, you can only make sure that the oil is changed regularly and with good quality oil, it is susceptible to oil starvation though so maintaining a clean pick up pipe is wise, i will be changing mine every 12 months i think, its under £10 so its just the faff of having to drop the sump.

Ta for reply.

Umm, where is the "pick up pipe" located; is it specific to the cam chain tensioner; any pics on interweb?

Thanks

 

[ibizacupra]

In the future im planning to get a rod upgrade, but for now it is fine by me.

A lot of people are running 300+ lb-ft on stock rods in the netherlands. perhaps better fuel?
less detonation?

dyno lottery more like imho

 

[ibizacupra]

Bill, on the 1.8T would you say rods are a must or uprated exhaust valves?

....or would recommend both.?

depends on what level you are pushing for...
rods with a bigger turbo yea... valves (not just exhaust) if pushing higher power (knocking on 400+) and springs also... as with bigger power also comes more revs..
all imho of course

 

[ibizacupra]

I've spoken to he who should not be named in Hinckly about mapping. I plan to do all the mods anyway but can't decide whether or not to carry them all out before mapping or just the first part. I also want to fit a relentless 3" DP sports cat, custom cat back and Relentless V3 manifold.
I keep getting told that rods can go any time at any state of tune which makes me think I should wait until the rods have been done.
Also new spark plugs and coil packs have just jumped to the top of my list!

fit rods... peace of mind for you and niki

 

[Nautilus]

AFAIK the Cupra doesn't have a EGR i thought it was only the diesels that had that, some LCR's have a EGT sensor?? There is no way to service or maintain the cam chain tensioner, you can only make sure that the oil is changed regularly and with good quality oil, it is susceptible to oil starvation though so maintaining a clean pick up pipe is wise, i will be changing mine every 12 months i think, its under £10 so its just the faff of having to drop the sump.

1.8T has a "Combi Valve" in place of the traditional EGR of the TDIs. "Combi" title comes from the fact at cold engine temps it also recirculates fresh air provided by the SAI pump to the exhaust to heat up the catalytic converter.

Cam chain tensioner provides the variable valve timing by changing phase between inlet and exhaust camshafts, so the valve opening overlaps and a bit of exhaust gas remains in the cylinder after the piston has raised, before the next intake. This does the same thing as a classic EGR.

The valvetrain is the most sensitive part to lack of oil or sludging.

~Nautilus

 

[ReDBull]

fit rods... peace of mind for you and niki

Thanks for conferming it Bill. I'll have to up my search for a large port head.

 

[virdi]

Bill, what valves would you recommend.? Supertech or Ferrea.?

 

[Phillc]

Ta for reply.

Umm, where is the "pick up pipe" located; is it specific to the cam chain tensioner; any pics on interweb?

Thanks

The pick up pipe is attached to the oil pump in the sump, you need to remove the sump and the pick up pipe is attached with two 10mm bolts.

1.8T has a "Combi Valve" in place of the traditional EGR of the TDIs. "Combi" title comes from the fact at cold engine temps it also recirculates fresh air provided by the SAI pump to the exhaust to heat up the catalytic converter.~Nautilus

A lot of people remove this SAI and all its components and blank off the combi valve.