GruppeM just released ram-air system for B7 RS4

[Andyuk911]

Can't make my mind up ... LOL

[alex_123_fra]

I spoke to some guys at the BTCC test today at Brands ... not that positive about it .... also warned of lean running at high speed if the car has not be mapped to take account of it ........

Andy, that kind of goes without saying, although modern ECUs are usually sophisticated enough to adjust the AFR depending on intake air flow and hence avoid lean running and detonation.

The advice is as with every other engine mod...if you change the air intake, it will be best for your car to have it remapped to suit the new parameters and to obtain the best possible gains from the mod.

[hugy]

Just registered my details with Ed online.
Thanks guys.

[caldy]

As one who was very keen at the outset, I now feel a bit of a Doubting Thomas. I have since spoken to Jeroen at JDE who carried out my re-map to ascertain his view. He says that there are additional air intakes on the RS4 operated by flaps at varying engine speeds in the wheelarch and by the front fog light. How are these catered for via the new intake?

[alex_123_fra]

As one who was very keen at the outset, I now feel a bit of a Doubting Thomas. I have since spoken to Jeroen at JDE who carried out my re-map to ascertain his view. He says that there are additional air intakes on the RS4 operated by flaps at varying engine speeds in the wheelarch and by the front fog light. How are these catered for via the new intake?

You could ask gruppeM directly. They are always very approachable and will not be likely to have anything to hide, given their impressive reputation. My guess is that (based on how it looks in the picture of it installed in the car) it is a much larger volume intake than stock which makes additional flaps neither necessary nor advisable provided the car is mapped to suit the increased air flow.

Perhaps tuners could also comment after seeing the physical kit.

[t_urbo]

As one who was very keen at the outset, I now feel a bit of a Doubting Thomas. I have since spoken to Jeroen at JDE who carried out my re-map to ascertain his view. He says that there are additional air intakes on the RS4 operated by flaps at varying engine speeds in the wheelarch and by the front fog light. How are these catered for via the new intake?

You could ask gruppeM directly. They are always very approachable and will not be likely to have anything to hide, given their impressive reputation. My guess is that (based on how it looks in the picture of it installed in the car) it is a much larger volume intake than stock which makes additional flaps neither necessary nor advisable provided the car is mapped to suit the increased air flow.

Perhaps tuners could also comment after seeing the physical kit.

Tuners are not silly enough to buy one.

[alex_123_fra]

As one who was very keen at the outset, I now feel a bit of a Doubting Thomas. I have since spoken to Jeroen at JDE who carried out my re-map to ascertain his view. He says that there are additional air intakes on the RS4 operated by flaps at varying engine speeds in the wheelarch and by the front fog light. How are these catered for via the new intake?

You could ask gruppeM directly. They are always very approachable and will not be likely to have anything to hide, given their impressive reputation. My guess is that (based on how it looks in the picture of it installed in the car) it is a much larger volume intake than stock which makes additional flaps neither necessary nor advisable provided the car is mapped to suit the increased air flow.

Perhaps tuners could also comment after seeing the physical kit.

Tuners are not silly enough to buy one.

Who said anything about them buying one. It might help you if you actually read what was posted. I said they could comment after SEEING a physical kit that they are fitting to a customer's car.

[Andyuk911]

I have heard of the 'flapper valve' in the air box being removed ... it could be there to stop induction noise ... perhaps a call to Germany is in order ...

[t_urbo]

You could ask gruppeM directly. They are always very approachable and will not be likely to have anything to hide, given their impressive reputation. My guess is that (based on how it looks in the picture of it installed in the car) it is a much larger volume intake than stock which makes additional flaps neither necessary nor advisable provided the car is mapped to suit the increased air flow.

Perhaps tuners could also comment after seeing the physical kit.

Tuners are not silly enough to buy one.

Who said anything about them buying one. It might help you if you actually read what was posted. I said they could comment after SEEING a physical kit that they are fitting to a customer's car.

I read it fine thanks, im just interested in who is going to be the first Dodo to actually buy one.

I have some go faster stripes which are good for 7 hp too.

[alex_123_fra]

Tuners are not silly enough to buy one.

Who said anything about them buying one. It might help you if you actually read what was posted. I said they could comment after SEEING a physical kit that they are fitting to a customer's car.

I read it fine thanks, im just interested in who is going to be the first Dodo to actually buy one.

I have some go faster stripes which are good for 7 hp too.

You could have fooled me. Perhaps you need help with the definition of words like "seeing" as opposed to "buying". I'm not quite sure where your pessimism stems from but you're coming across a total c.o.c.k to be honest. There is nothing wrong with people wishing to buy an aftermarket air intake as far as I can see and there is no need to insult them with comments about go faster stripes. Just because you feel the gains are not impressive is no reason to be derogatory about it. We all know that mods aren't always about the absolute increase in power, but more about the overall power delivery. With a decent remap, the gains could be much higher as I doubt the gruppeM car was even remapped.

[P_G]

It is very subjective, the cost vs effect benefit is quite low compared to other modifications. I could however see this as a viable option had I gone down the full sports exhausrt with racing cats and / or remap already and wanted a little more.

As such I haven't so an exhaust mod would pose less issues and probably cost less to. I had thought about buying a Carbonio CAI but again gains and power delivery weren't changed that much considering the cost.

I could have spent the money going to weight watchers and improving the power to weight ratio.

[Love_iTT]

*Sigh* It doesn't take much for handbags to come out on this forum recently does it.

Why can't people just accept other people's view point without loosing their rag and be done with it, if you disagree, fine. If not, then also fine - it really doesn't matter in the big scheme of themes.

It's just an air filter at the end of the day, there is far more to get heated up about in this world than an air filter.

Graham

[t_urbo]

Anyone with a few brain cells will acknowledge the fact that this air intake will do nothing apart from dent your wallet.
Alex you sound like just the man who already has the go faster stripes, so i will save the ones i have for your next car.

[W8PMC]

*Sigh* It doesn't take much for handbags to come out on this forum recently does it.

Why can't people just accept other people's view point without loosing their rag and be done with it, if you disagree, fine. If not, then also fine - it really doesn't matter in the big scheme of themes.

It's just an air filter at the end of the day, there is far more to get heated up about in this world than an air filter.

Graham

Good point, let's talk about re-maps

Just kidding (honest)

Agree though, i doubt the gains are really worth the outlay, but if their kit really is that good as expected, fitting one has no negative impact whilst upping the power a torques by a few digits, then i guess for a commited modder it's a good mod.

[SR71]

Problem I have with this is that in the grand scheme of things (i.e., a couple of hundred million developing the RS4), the money spent by Audi optimising the intake for best performance is neither here nor there.

So, tell me....why would they settle for anything other than optimum?

What in effect you're suggesting is that Gruppe know more about the performance of the RS4 intake than Audi themselves. I just find this hard to stomach.

I'm sure someone, somewhere will fit their intake and suggest there are gains to be had, but I'd want to know what else they'd changed as well to get the results they claim! At that point, you have to ask, what is responsible for the changes?

Kudos to tuners like Manthay who admit that (for example) getting any more performance from the 997 GT3RS is not possible by playing with the powerplant and associated intakes/exhausts. Porsche have done that and extracted absolutely everything possible from it already.

That said DTM 4.0 litre cars get 460hp so there is some room for improvement over the 414hp we get, but I'd imagine much of that is rpm related...

The RS4 4.2 would generate 465hp at 9000rpm....but its longevity would no doubt be affected.