Anyone Running APR Stage 3+?

[ScottishPoloGTI]

Just wondering if anyone is running this on their Polo. Doesnt seem to be anyone here in the Uk got this kit on there Polo yet. Just looking for some info about it. Like if they are running standard internals? Awesome GTI (Uk main APR suppliers) say that this kit will be fine on standard internals. Its the 340bhp kit.

Regards Kenny

[noone]

Good to see you again mate.

Noting I know of, few Ko4-001's, a Ko4-025, lots of chipped Ko3's.

Have a look at the K04 thread close to this one, there is an interesting hybrid I found in there.

Not sure Stage 3 would be cost effective compared to sourcing parts and going to a different tune.

Not sure why there is no fuel pump, injectors, etc listed as required in stage 2 or 3 compared to some of the other tunes...?

Also, if it has not been done for a customer, APR may not have all the parts prepared for this project.

[break]

Standard internals are good for up to 300kw from all reports... which is far more than you'll get with the stage III+

Edit: That said, I think you could end up with more peak power, less lag, and more ability to further upgrade later by going to a good tuner and doing a custom build with an aftermarket ECU. Stage III+ ain't exactly cheap, and the cost of manifold fabrication, doing a fuel system upgrade, cost of a new turbo, cost of ECU, then cost of fitting and tuning would likely be similar in the long run.

[firdausasri]

For stage 3, you need bigger turbo, genesis 380cc injectors, 4 bar fuel pressure regulator, walbro 255lbs alike fuel pump, upgraded fuel rail (if you gone 440ccc injectors onwards), fmic, cams etc but then you'll have lots of headache with the traction. Although stock internal good enough for 300bhp onwards but you've to watch out for the conrod which is the weakest link for the engine.

[noone]

For stage 3, you need bigger turbo, genesis 380cc injectors, 4 bar fuel pressure regulator, walbro 255lbs alike fuel pump, upgraded fuel rail (if you gone 440ccc injectors onwards), fmic, cams etc but then you'll have lots of headache with the traction. Although stock internal good enough for 300bhp onwards but you've to watch out for the conrod which is the weakest link for the engine.

From what I can see on the APR sites, no mention of injectors, no mention of fuel pump, no mention of cams.

Don't think anyone scopes cams as essential.

------

Was talking to a major dealer about the std K04-001 upgrade with code just yesterday.
They suggested the Gearbox was likely to be ongoing issue. Can be rebuilt, but no aftermarket options if ongoing brakage occurs.
They also suggested issues with the clutch, but the clutch can be upgraded to 3rd party aftermarket device.

I'm sure there are cards with K04 and no gearbox issues, guess it depends on how you treat your car.

[whiteVR6]

If your going to run a gt28rs your going to need the following :

440-630 injectors
front mount
Stage 1 clutch min
lsd
spark plugs
tune

The gearbox will handle a mild upgrade like a gt28rs but you'd require an lsd as minimum . The diffs are weak and will break .

Who fitted a ko4-025 ? They are one side of an RS4 twin turbo ? Are you sure its not a ko4-022 or -022 ?

The rods are weak with torque spike which the ko4 is strong enough to break a rod and they dont need to be upgraded until you push the car hard . Piston rings are what will wear out quicker . 300kw , 300 hp , it all doesnt matter your gonna have to eventually rebuild the engine anyway , the numbers just dont equate to anything unless you use them

[noone]

Who fitted a ko4-025 ? They are one side of an RS4 twin turbo? Are you sure its not a ko4-022 or -022 ?

I'm pretty sure, his thread is here

If your going to run a gt28rs your going to need the following:

440-630 injectors
front mount
Stage 1 clutch min
lsd
spark plugs
tune

The gearbox will handle a mild upgrade like a gt28rs but you'd require an lsd as minimum . The diffs are weak and will break.

I think there is a lot of difference between what is required and what makes sense. Is the gt28rs specified as the turbo for any of the Stage 3's?

I don't think the APR needs FMIC, injectors, fuel pump, I can't see where they have stipulated its required.

Those injectors are much bigger than I've seen specified elsewhere.
LSD, makes sense, but is it required? Is the stock diff very weak? Do you have experience with the Polo diff or is it the same as mk4 or another vehicle?
Spark plugs, is there an issue with the stock ones with the additional power, fuel, etc? I know some people have upgraded, but seems to be for their own peace of mind, rather than requirement.

All good info, I'm thinking about going down this path, but with all the extra's needed, think the Polo might not be a great platform.

[break]

All good info, I'm thinking about going down this path, but with all the extra's needed, think the Polo might not be a great platform.

That right there summed up exactly why my Polo is only ever going to have its tune, plus the odd thing here or there as it needs replacing.

If you wanted a powerful turbo sports car than can handle, the better value for money is save the cash you would otherwise spend on mods on the Polo and just buy that EVO/STI etc. that you'd really like. You'll end up with a better sports car, that has most of the things you want (more power, better brakes, better handling etc.) from the factory... and you'll have a much better platform to start your modifications.

[noone]

That right there summed up exactly why my Polo is only ever going to have its tune, plus the odd thing here or there as it needs replacing.

the best money i spent on my car:
- chip
- Seat intake
- swaybars
- coilovers
- bushes

The other items help (i like my exhaust sound with the dump pipe and front mount), I doubt I'm done yet, but it makes me smile inside when people talk about traction issues with the K03, front swaybar and coilovers made a huge traction improvement.

[ScottishPoloGTI]

This is the kit am looking at:
http://www.goapreu.com/products/stage3plus_trans.htm

This includes everything i need including software. Works out just over £4K time you add on VAT!

I dont really want to go and buy parts seperate and do a custom build. APR are in my opinion the best tuners out there. Lots of research has went into this kit and mapping it to suit. They say it is fine on standard internals, but am just wondering what everyone else thinks?

Kenny