Development of our MK4 Rs for hps

[dainese]

Iam talkin maxim development ....this is not only to help me but others...

oh ok.

as trent said.

basically it get all expensive when you have to crack open the engine.

the bolt on stuff:

ecu
exhaust
cai

after that, it gets pricey, and dollar per Kw, it gets scary...

[JVLR32]

oh ok.

as trent said.

basically it get all expensive when you have to crack open the engine.

the bolt on stuff:

ecu
exhaust
cai

after that, it gets pricey, and dollar per Kw, it gets scary...

Yeh understand...but thinking outside that square!!!! wat else is holdin the power back that we can work on....

[fuzion]

sebs the man for the r32 mods most definitely..

http://www.youtube.com/watch?v=3oMBoLMrfoQ this video of flaps in hs polo and aussiejimmy's r32 infront of him.. the thing screams, sounds and goes like no tomorrow for a na r32!

[G-rig]

oh ok.

as trent said.

basically it get all expensive when you have to crack open the engine.

the bolt on stuff:

ecu
exhaust
cai

after that, it gets pricey, and dollar per Kw, it gets scary...

I think all of our R32's could do with a bit more power

I agree with that list.. the easiest things.. Next I'd do the headers which did help on my Mk5 get somewhere between 4-8kw @ all fours, but they aren't cheap and was a good 6hrs labor to fit them. They also made my exhaust quieter. I know the mk5 has a bit more power but with CDA, headers, APR retune and Milltek catback i dyno'd 149kw at all four wheels (147kW was the average). Before that got 146 at the front wheels in 2wd mode with the DMS retune.

Not sure about cams but I think they'd be a bit noisy for the street and may ruin the daily drive (may gain some top end power but lose a bit down low?) but it's good to know where to stop and appreciate it for what it is. I'd concentrate on the suspension and handling if you haven't already. Ian's R32 demonstrated this in the lap times for the Motor mag shootout.

Cat backs don't really help it's more for sound which can be deceiving but with such a great engine it's nice to improve the note.

A supercharger would be a lot better though .

[Treza360]

Cat backs don't really help it's more for sound which can be deceiving but with such a great engine it's nice to improve the note.

On the MkIV they actually do a bit. The difference after I installed mine was quite noticeable. Not so much power wise (you're never really going to ever notice a few kw) but the ability of the engine to rev so much more eagerly.

The other big difference at least in mine was the weight reduction. The stock exhaust pretty much requires two people to carry whereas the B&B/APR can be lifted easily by one.

The MkV R32 i'm not so sure about. From what I've read I thought the extra 7kW or so it makes over the MkIV was down to different intake and exhaust design pretty much?

Cheers,
Trent

[gareth_oau]

dont forget that exhausts and tunes might not deliver a huge amount of extra power, but it may deliver it in an earlier way, and eliminate flat spots.

A before and after dyno run will show that.

Combining the exhaust/tune combo is likely to give a better result that the sum of the two individual scopes

A tune will definitely make it spit and burble more!!

[JVLR32]

On the MkIV they actually do a bit. The difference after I installed mine was quite noticeable. Not so much power wise (you're never really going to ever notice a few kw) but the ability of the engine to rev so much more eagerly.

The other big difference at least in mine was the weight reduction. The stock exhaust pretty much requires two people to carry whereas the B&B/APR can be lifted easily by one.

The MkV R32 i'm not so sure about. From what I've read I thought the extra 7kW or so it makes over the MkIV was down to different intake and exhaust design pretty much?

Cheers,
Trent

Weight will be a factor with these cars Trent

So alot of the debate comes back to the exhaust....Cats, Muffler etc.

[G-rig]

The other big difference at least in mine was the weight reduction. The stock exhaust pretty much requires two people to carry whereas the B&B/APR can be lifted easily by one.

1 person can carry a mk5 exhaust quite easily, unless they are the biggest whimp.. so maybe it's a bit lighter but not that heavy (the milltek resonated is a bit heavier on the mk5 R32 setup)

The MkV R32 i'm not so sure about. From what I've read I thought the extra 7kW or so it makes over the MkIV was down to different intake and exhaust design pretty much?

No idea sorry but good to get a dyno before/after as noise can be a bit deceiving and may sound like you're going fast. The headers are the one thing that do make a difference though.

[JVLR32]

I know one thing.....the build of my exhaust wont be anything of the shelf

[G-rig]

Mk4's still sound a bit better for some reason..

[AusScare]

Have a read of the Motor mag tuner car review, Guy's 400hp Golf got a 6.2s 0-100 and the rennenhaus R32 got 6s. While in gear acceleration would be different again (in the GTIs favour), I think the exhaust sound and awd is still preferable for a daily driver. So even if it is slower, no worries with traction and you can just burble along at 3k shifts and still sound awesome. The hp search isn't really that bad, I'm sure the R32 would still go alright.

[G-rig]

you'll get much better info if you talk to bug_racer who was part of the vw racing team.

Just don't get a MK4 HPA turbo kit, that Silver MK4 that was in QLD ran like a dog apparently because of software problems (not saying the install was bad).

I think the exhaust sound and awd is still preferable for a daily driver. So even if it is slower, no worries with traction and you can just burble along at 3k shifts and still sound awesome. The hp search isn't really that bad, I'm sure the R32 would still go alright.

Yeah the R32 is a great daily driver with useable power and can put all of it down to the road. I like the torque and feels like you got nothing to prove but can step on it in any gear almost..

[graeme86]

Just don't get a MK4 HPA turbo kit, that Silver MK4 that was in QLD ran like a dog apparently because of software problems (not saying the install was bad).

I wonder if those ricecans on the back had anything to do with that?

I saw it up on a hoist at Sherrins once and the pipe from the cats was actually smaller than the stock R32 exhaust

[G-rig]

I wonder if those ricecans on the back had anything to do with that?

I saw it up on a hoist at Sherrins once and the pipe from the cats was actually smaller than the stock R32 exhaust

That's not the problem but yeah probably more to do with the ECU software not being right (the MK5 kit is a lot better apparently).

[Treza360]

That's not the problem but yeah probably more to do with the ECU software not being right (the MK5 kit is a lot better apparently).

The reason the software isn't right is because it isn't tuned properly for an Australian delivered R32 (no off the shelf software available). A better idea would've been to tune it here in Australia if someone had/has the software to do it (Custom Code?) or just put a piggy back system in.

Anyway we're venturing off topic here.

Cheers,
Trent