whats the best air intake?

[acespizee]

^^^^ Nice. Whats the noise like?  Have you modified your front Dbilas brackets?

Sounds really meaty and Breathy, but not annoyingly so. Has a very nice sound along with exhaust that makes it sound alot more fruity than a 4 cyclinder has any right to.

Front brackets are unmodified.

[acespizee]

I wouldnt want to hit a puddle or drive behind another cars spray with that lower filter. That must be a recipe for water ingress into the air intake system.  

If you made gains then good for you, but there is no way id be happy with that.  Also congrats on the output. thats the most powerful k03 ive seen to date .

Also another point as well is looking at your filters, you have two different brands/styles of filter-one panel/1 cone. these wil have different flow characteristic causing more disruption where the two air flows meet,  there is an array of different sizedhose connections to disrupt air flow even more

This is england so i have already been through snow, wind, rain and sunshine, all with out any problems. I have had this intake for a while now.

I had the original Forge CAI and was to my knowledge the first Leon with it fitted, also allowing me it really, really cheap, as i was the Leon ginuepig in the Forge pic. I ran this intake for over a year (maybe more) with no problems at all, in the same location the second filter is located.

It just works mate.

I had two intakes lying around and could'nt decide which was better. My original Forge intake flowed better than my Dbilas up-top and sounded much better (IMO) but my Dbilas had better throttle response, especially at motorway speeds. I wanted the best of both worlds. I had an idea, grew a fat pair and tried it.

And it worked.    

Throttle response is much better, mid-range pulls very hard and top-end is nice and smooth, and it sounds much better than my Dbilas or Forge when they were on there own. Lots of Darth Vader noises.

Power band is very, very smooth and the car flows over 215gs at the maf. This intake will be following me to big turbo land.

Intake temps do not rise above 20*c and is at 17*c at redline.

Here is Dyno run note how smooth it is.  







 

[bacillus]

I find it puzzling why your peak torque appears to occur at around 4.4k rpm on a k03.  I would expect this with a bigger turbo and not a k03.

My peak torque occurs at around 3.2k rpm with a stage 2+ revo map allbeit with higher numbers than your results.

[Janner_Sy]

bacilus is right about the peak torque as well. 

[john_o]

@acespizee : thats some intake thanks for sharing , well done  .
In terms of 'smooth' curves though thats just how the software is set, easily manipulated, the graphs from various tuners vary widely in the smoothing applied (as do power readouts lol).
however the numbers seem very healthy. Have you been on any other dynos

@everyoneelse :  whilst I would agree water intake is a potential problem on low flung intakes, its worth considering that this may be reduced significantly on any 'twin' design.
I may be corrected here, but on a

1 : single design if you block the intake (with water) theres no option but for it to hoover the H20 into the bores 

2 : twin design , the lower intake may 'block' and attempt to suck but never get very high
(it takes a lot of vaccum to raise water x inches) , whilst the upper intake is still open.
you need a closed system to have a real detrimental effect.

I would liken it to trying to drink some diet coke from a glass using a Y piece with only one of the 'twin' side in the glass.....

makes sense to me but Im no expert!?!

[acespizee]

I find it puzzling why your peak torque appears to occur at around 4.4k rpm on a k03.  I would expect this with a bigger turbo and not a k03.

My peak torque occurs at around 3.2k rpm with a stage 2+ revo map allbeit with higher numbers than your results.

I dont know why my torque peak is so high, i am Revo stg2+ aswell. I have never understood why some people make more torque than me. Car starts to shift at about 2200 rpm. According to boost gauge i get full boost around 2500 rpm. low-end seems really healthy on the road. I guess my car likes power more than torque. Still enougth to come on boost quicker and take down sub-360 bhp Evo's.  

[bacillus]

I wonder if you ever logged your requested and actual lambda with vcds as, IMO, after looking at the AFR on your printout, you should probably run your fuelling a tad richer i.e. use F8 instead of F9.
My understanding is that the RR AFR tends to be slightly leaner than when logged using vcds.

[acespizee]

@acespizee : thats some intake thanks for sharing , well done  .
In terms of 'smooth' curves though thats just how the software is set, easily manipulated, the graphs from various tuners vary widely in the smoothing applied (as do power readouts lol).
however the numbers seem very healthy. Have you been on any other dynos

@everyoneelse :  whilst I would agree water intake is a potential problem on low flung intakes, its worth considering that this may be reduced significantly on any 'twin' design.
I may be corrected here, but on a

1 : single design if you block the intake (with water) theres no option but for it to hoover the H20 into the bores  

2 : twin design , the lower intake may 'block' and attempt to suck but never get very high
(it takes a lot of vaccum to raise water x inches) , whilst the upper intake is still open.
you need a closed system to have a real detrimental effect.

I would liken it to trying to drink some diet coke from a glass using a Y piece with only one of the 'twin' side in the glass.....

makes sense to me but Im no expert!?!

Thanks mate, I usually take the car to TSR in bridgewater. The car produced 203 bhp and 212 tq stock. With just Revo stg2+, Dbilas, S3 I/C, SFS hoses, Forge DV, 3" ATP decat D/P to stock cat-back, Neuspeed pulley and HPFP the car made 280 bhp and 290 tq on there MAHA Dyno.

I then took the car to circuit motors by Castle Combe for a dyno day with some friends from my car club Performance Bristol. The car produced 279 bhp and 289 tq on the Dastek Dyno, leading me to beleive it to be very accurate. I also had a sligt boost leak as i was only getting 18 psi.

Next added Forge I/C to S3, Milltek cat-back to my ATP D/P, Custom intake, RS4 Valve, PCV to exhaust, fixed boost leak and i now have 308 bhp and 307 tq on the same Dastek Dyno.  

I will post up:





I had more torque low-down before but, the extra more than compensates.

 

[acespizee]

I wonder if you ever logged your requested and actual lambda with vcds as, IMO, after looking at the AFR on your printout, you should probably run your fuelling a tad richer i.e. use F8 instead of F9.
My understanding is that the RR AFR tends to be slightly leaner than when logged using vcds.

I heard VCDS aint accurate for lambda on the Vortex. I hear you on the lean runninig as the dyno operator pointed this out to me aswell. I have been running fuel setting 8 since, i have not logged to check yet tho.

I may even start running fuel 7 but will log first, thanks for pointing that out tho mate. 

[Sunglasses Ron]

@acespizee : thats some intake thanks for sharing , well done  .
In terms of 'smooth' curves though thats just how the software is set, easily manipulated, the graphs from various tuners vary widely in the smoothing applied (as do power readouts lol).
however the numbers seem very healthy. Have you been on any other dynos

@everyoneelse :  whilst I would agree water intake is a potential problem on low flung intakes, its worth considering that this may be reduced significantly on any 'twin' design.
I may be corrected here, but on a

1 : single design if you block the intake (with water) theres no option but for it to hoover the H20 into the bores 

2 : twin design , the lower intake may 'block' and attempt to suck but never get very high
(it takes a lot of vaccum to raise water x inches) , whilst the upper intake is still open.
you need a closed system to have a real detrimental effect.

I would liken it to trying to drink some diet coke from a glass using a Y piece with only one of the 'twin' side in the glass.....

makes sense to me but Im no expert!?!

Thanks mate, I usually take the car to TSR in bridgewater. The car produced 203 bhp and 212 tq stock. With just Revo stg2+, Dbilas, S3 I/C, SFS hoses, Forge DV, 3" ATP decat D/P to stock cat-back, Neuspeed pulley and HPFP the car made 280 bhp and 290 tq on there MAHA Dyno.

I then took the car to circuit motors by Castle Combe for a dyno day with some friends from my car club Performance Bristol. The car produced 279 bhp and 289 tq on the Dastek Dyno, leading me to beleive it to be very accurate. I also had a sligt boost leak as i was only getting 18 psi.

Next added Forge I/C to S3, Milltek cat-back to my ATP D/P, Custom intake, PCV to exhaust, fixed boost leak and i now have 308 bhp and 307 tq on the same Dastek Dyno.  

I will post up:





I had more torque low-down before but, the extra more than compensates.

 

Nice work mate and nice figures... 
BUT, you stated this in your first post...

I made a custom Twin set-up and i make 308 bhp and 307tq (280 bhp at the wheels) on my K03 along with my other mods, up from 280 bhp and 289 tq with Dbilas.

Twin-intakes definetly work.

Then this..

I then took the car to circuit motors by Castle Combe for a dyno day with some friends from my car club Performance Bristol. The car produced 279 bhp and 289 tq on the Dastek Dyno, leading me to beleive it to be very accurate. I also had a sligt boost leak as i was only getting 18 psi.

Next added Forge I/C to S3, Milltek cat-back to my ATP D/P, Custom intake, PCV to exhaust, fixed boost leak and i now have 308 bhp and 307 tq on the same Dastek Dyno. 

I'm not sure you can claim over 20bhp difference over the 2 intakes when you have added all the new bits and more importantly fixed a boost leak  . Which could make a difference of 1bhp upto who knows... 

[Janner_Sy]

its a shame you fitted those SFS hoses along with everything else.  I would have been really interested to see how they performed

[acespizee]

[/quote]

Nice work mate and nice figures... 
BUT, you stated this in your first post...



Sorry, was just answering questions. 

[acespizee]

its a shame you fitted those SFS hoses along with everything else.  I would have been really interested to see how they performed

In short, they needed a bit of modification to stop the radiator fan from chopping it up when they swell, so they were not very well thought out. I think they went through two revisions.

They are quite large in diameter so they flow well compared to the crappy smashed and kinked OEM pipes.

They are even more modified now to suit the intercoolers.

[acespizee]

The Dbilas is proven to flow over 350 bhp so i am not saying it aint acheivable with one filter, im just saying my intake is performing way better than i ever expected, sounds nicer than i expected and gives the car a much more noticabley fully rich power band. I have had the Dbilas back on as i still have my black original pipe, gave the car about 2 days with it on to adapt, the car felt noticably flatter and did not have the same top-end or mid-range tug.

Twin-intake back on, response, character and performance was back.