All Things Mk5 > Performance Modifications
Next performance mod for my ed30
Lucastheone92:
--- Quote from: Pudding on August 30, 2016, 12:54:42 pm ---
--- Quote from: Lucastheone92 on August 30, 2016, 12:41:00 pm ---
--- Quote from: Pudding on August 30, 2016, 12:36:47 pm ---Mine made the same numbers for stage 1 at a different tuning firm, but I needed a Loba pump and Helix clutch as neither of the standard items could sustain even stage 1.
Be wary of really cheap Chinese downpipes because some of them only have a 2.5" bore diameter, but are advertised as 3". That can choke the turbo at high rpms and stop the exhaust valves from sealing properly. The turbo outlet diameter on the K04 is about 83mm. Most 3" DP's inner diameter is 76mm, so you can get a step in the flow. If you join the TFSI tuning Facebook group, there's a pretty decent 3.5" outlet DP from Relentless tuning for a good price. People are getting good results from it.
I've got the APR downpipe and MK6 R intercooler on mine, and to give you an idea of the improvement that gives, mine keeps up with my friend's A45 AMG (the newer 367hp flavor). Not from a standstill (his pulls away, 4WD!) but we did a rolling 50-Very naughty mph race and there was nothing in it. I was pleased with that, especially as his is DSG and mine manual!
--- End quote ---
Thanks for that info that's real helpful ! Does an exhaust really make that much difference? Can I not just do a pre cat removal to free up some air flow ? I'm also thinking about the forge twin take as heard some brilliant reviews !
Sent from my iPhone using Tapatalk
--- End quote ---
It does yeah. The downpipe / cat removal mostly. Cat back exhaust less so, until you start getting up into big boost.
You could do the cat removal thing first, but it's also the shape of the OEM dp that's not great. It funnels down into an awkward and small diameter neck after the cat, and then the pipe work is only 2.5" too. The aftermarket DP will delete the fist cat (and also the second if you choose) and will be 3" all the way to the standard exhaust, which is about 5 feet of 3" goodness! it really does make the engine come alive at the top end, even without stage 2 mapping.
I have the standard intake on mine as I don't like the noises aftermarket ones make, but yeah, a decent intake will help a bit too, again, at the top end mostly.
--- End quote ---
Ok thanks i will definately look into getting a downpipe and intercooler. Do i need to change my cam followers for upgraded onces or simply replace them with new ones of the same type?
Lucastheone92:
--- Quote from: Lucastheone92 on August 30, 2016, 01:27:50 pm ---
--- Quote from: Pudding on August 30, 2016, 12:54:42 pm ---
--- Quote from: Lucastheone92 on August 30, 2016, 12:41:00 pm ---
--- Quote from: Pudding on August 30, 2016, 12:36:47 pm ---Mine made the same numbers for stage 1 at a different tuning firm, but I needed a Loba pump and Helix clutch as neither of the standard items could sustain even stage 1.
Be wary of really cheap Chinese downpipes because some of them only have a 2.5" bore diameter, but are advertised as 3". That can choke the turbo at high rpms and stop the exhaust valves from sealing properly. The turbo outlet diameter on the K04 is about 83mm. Most 3" DP's inner diameter is 76mm, so you can get a step in the flow. If you join the TFSI tuning Facebook group, there's a pretty decent 3.5" outlet DP from Relentless tuning for a good price. People are getting good results from it.
I've got the APR downpipe and MK6 R intercooler on mine, and to give you an idea of the improvement that gives, mine keeps up with my friend's A45 AMG (the newer 367hp flavor). Not from a standstill (his pulls away, 4WD!) but we did a rolling 50-Very naughty mph race and there was nothing in it. I was pleased with that, especially as his is DSG and mine manual!
--- End quote ---
Thanks for that info that's real helpful ! Does an exhaust really make that much difference? Can I not just do a pre cat removal to free up some air flow ? I'm also thinking about the forge twin take as heard some brilliant reviews !
Sent from my iPhone using Tapatalk
--- End quote ---
It does yeah. The downpipe / cat removal mostly. Cat back exhaust less so, until you start getting up into big boost.
You could do the cat removal thing first, but it's also the shape of the OEM dp that's not great. It funnels down into an awkward and small diameter neck after the cat, and then the pipe work is only 2.5" too. The aftermarket DP will delete the fist cat (and also the second if you choose) and will be 3" all the way to the standard exhaust, which is about 5 feet of 3" goodness! it really does make the engine come alive at the top end, even without stage 2 mapping.
I have the standard intake on mine as I don't like the noises aftermarket ones make, but yeah, a decent intake will help a bit too, again, at the top end mostly.
--- End quote ---
Ok thanks i will definately look into getting a downpipe and intercooler. Do i need to change my cam followers for upgraded onces or simply replace them with new ones of the same type?
--- End quote ---
Also, is this the exhaust you have? https://www.awesomegti.com/shop-by-car/audi/a3-8p/apr-cast-downpipe-sports-cat-fwd-only-with-1-8t-2-0t-gen-1-engines/
AJP:
Good info there @Pudding
@Lucastheone92 the cam follower is one small part that fits between the HPFP and camshaft. Over time, they wear down. If it fails, you could be looking at lots of nasty metal on metal action and big bills. It's recommended to replace the follower along with the DV and PCV. One or more of these three parts are often the 'usual suspects' when it comes to poor running on a TFSI. Preventative maintenance is key here - replace them before they need replacing. The follower is about 40 quid and is a quick job for a competent mechanic.
If you get as far as fitting an aftermarket intake (it shouldn't be too high up the list of priorities in my opinion) I'd advise looking at the Revo intake, Evoms, ITG Maxogen, or Ramair. The Twintake apparently doesn't flow too well in comparison.
pudding:
--- Quote from: Lucastheone92 on August 30, 2016, 01:51:19 pm ---
--- Quote from: Lucastheone92 on August 30, 2016, 01:27:50 pm ---
--- Quote from: Pudding on August 30, 2016, 12:54:42 pm ---
--- Quote from: Lucastheone92 on August 30, 2016, 12:41:00 pm ---
--- Quote from: Pudding on August 30, 2016, 12:36:47 pm ---Mine made the same numbers for stage 1 at a different tuning firm, but I needed a Loba pump and Helix clutch as neither of the standard items could sustain even stage 1.
Be wary of really cheap Chinese downpipes because some of them only have a 2.5" bore diameter, but are advertised as 3". That can choke the turbo at high rpms and stop the exhaust valves from sealing properly. The turbo outlet diameter on the K04 is about 83mm. Most 3" DP's inner diameter is 76mm, so you can get a step in the flow. If you join the TFSI tuning Facebook group, there's a pretty decent 3.5" outlet DP from Relentless tuning for a good price. People are getting good results from it.
I've got the APR downpipe and MK6 R intercooler on mine, and to give you an idea of the improvement that gives, mine keeps up with my friend's A45 AMG (the newer 367hp flavor). Not from a standstill (his pulls away, 4WD!) but we did a rolling 50-Very naughty mph race and there was nothing in it. I was pleased with that, especially as his is DSG and mine manual!
--- End quote ---
Thanks for that info that's real helpful ! Does an exhaust really make that much difference? Can I not just do a pre cat removal to free up some air flow ? I'm also thinking about the forge twin take as heard some brilliant reviews !
Sent from my iPhone using Tapatalk
--- End quote ---
It does yeah. The downpipe / cat removal mostly. Cat back exhaust less so, until you start getting up into big boost.
You could do the cat removal thing first, but it's also the shape of the OEM dp that's not great. It funnels down into an awkward and small diameter neck after the cat, and then the pipe work is only 2.5" too. The aftermarket DP will delete the fist cat (and also the second if you choose) and will be 3" all the way to the standard exhaust, which is about 5 feet of 3" goodness! it really does make the engine come alive at the top end, even without stage 2 mapping.
I have the standard intake on mine as I don't like the noises aftermarket ones make, but yeah, a decent intake will help a bit too, again, at the top end mostly.
--- End quote ---
Ok thanks i will definately look into getting a downpipe and intercooler. Do i need to change my cam followers for upgraded onces or simply replace them with new ones of the same type?
--- End quote ---
Also, is this the exhaust you have? https://www.awesomegti.com/shop-by-car/audi/a3-8p/apr-cast-downpipe-sports-cat-fwd-only-with-1-8t-2-0t-gen-1-engines/
--- End quote ---
Yeah that's the one, although the UK doesn't get that resonator after the sports cat. It's expensive, but I was impressed with the quality and fit and finish. APR remind me of Apple. You pay a premium for the name, but the quality is definitely there.
I'm quite skeptical of some mods, but even I was impressed by how much harder it pulls from 5000 to the redline.
Lucastheone92:
--- Quote from: AJP on August 30, 2016, 02:12:09 pm ---Good info there @Pudding
@Lucastheone92 the cam follower is one small part that fits between the HPFP and camshaft. Over time, they wear down. If it fails, you could be looking at lots of nasty metal on metal action and big bills. It's recommended to replace the follower along with the DV and PCV. One or more of these three parts are often the 'usual suspects' when it comes to poor running on a TFSI. Preventative maintenance is key here - replace them before they need replacing. The follower is about 40 quid and is a quick job for a competent mechanic.
If you get as far as fitting an aftermarket intake (it shouldn't be too high up the list of priorities in my opinion) I'd advise looking at the Revo intake, Evoms, ITG Maxogen, or Ramair. The Twintake apparently doesn't flow too well in comparison.
--- End quote ---
So i'm best off first buying a down pipe and intercooler after first replacing my PCV and cam follower? thanks for all the information I really appreciate it as i am new to the world of performance mode as my previous car was a 75bhp polo! i have received so much info sicne joining this forum!
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