Air Intake upgrade

Bazza

Bazza

Zorg Guru (IV)
Supporter
British Zeds
The West Country
Joined
Oct 15, 2013
Points
156
Location
Verwood Dorset
Model of Z
2.8 Roadster
Right guys a little challenge for you what in your opinion is the best way to increase the engine air intake:thumbsup:
the prize will be a pint of the local ale:drinks: or if any girl comes up with the winning / suggestion a large glass of wine=))
Photos of any induction kits fitted will score extra points.:whistle:
 
Here's mine. Don't know what the hell it is tho!
20151115_111018.webp
 
Sure is Dave. Was that picture on the day of fitting?:)

Tony.
 
Right lads a little update got myself a cone Simot Filter
DSC_1245.webp
DSC_1246.webp
DSC_1247.webp
just a quick fit on to car to try and see if a difference could be felt:whistle:
the car responds much better so more smiles p/gallon and as for the bloody sound it's fantastic I think if increased the cylinders by at least two
I will now take the filter of and make up a heat shield and also extend the cone with the length of pipe supplied
I will have to make up an adapter as the pipe is a little small I may also add a new air flow pipe from the front grill as well
oh the cost for the filter was £20 new e-bay:thumbsup:
 
Just some info from when I did mine.

These air filters give a great sucking noise but you loose BHP unless you fit a cold air feed and a shield to stop heat soak from the engine.
 
Lee said:
Just some info from when I did mine.

These air filters give a great sucking noise but you loose BHP unless you fit a cold air feed and a shield to stop heat soak from the engine.
Click to expand...
Saw an interesting mod on FB to assist with cooling, the chap had a round hole cut into his front bumper (size of a round fog light) with a hose that fed up direct to the filter. Looked a neat job.
 
Looking good Bazza you could use a shroud like mine to shield it or again some thing similer to what Grumpy has use your tube to drop the filter towards the right corner and box / shield it.Then get a cold air feed tube up to the base of it :thumbsup:
 
oem, thats my sugestion=)) its simple - how can something that flows more air trap as much crap?.
 
Guys, when oiling the filters I heard that you have to be careful as the oil can clog up the MAF sensor. Is that correct? You do lightly oil the filters right or are they dry?
 
Some are dry but others you do oil and i imagime excess would cause the map to get dirty and miss read airflow.
 
Whilst the Tea Cosies and Waste Bins look pretty, your actually defeating the object of fitting a CAI which is to remove the restriction of the OEM Induction loop, I would also suggest that the filters in use here are also too small.

Although these may claim to add BHP they cant, you can only use a volume of fuel and air that is the equivalent the volume of the piston and bore cavity at full stroke (Unless compressed - FI) therefore the OEM airbox is more than adequate for this, but because of the induction loop on some models and or the placement of the intake on others there becomes a vacuum issue at mid to high revs, as the air to replace that sucked in to the piston is either not there or significantly less.

Removing the air box and sticking a filter on the MAF removes this restriction. Adding heat shields as you have done just makes this restriction worse than the OEM version. And you don't lose power due to heat build up, as you have an air temp sensor, and this air temp sensor in conjunction with the MAF and the ECU ensures that the AIR:FUEL ratio stays the same no matter what the temperature.

You do lose power though by having a filter that is too small and bolted directly to the MAF, this is because the MAF needs a steady air flow to read the mass of the air correctly flowing through it in order to give correct volume readings, the OEM air box allows, and so does a large filter. A small filter causes turbulence in MAF, and this is the reason you lose BHP because your AIR:FUEL ratio is wrong.

So you either need to move the small filter further away from the MAF or fit the biggest filter you can. I used to have a K&N CAI Fitted. I then following research swapped out the biggest Piper Filter I could find and the difference is like night and day.

Hope it helps, but some fantastic engineering skills here guys...
 
zedonist said:
Whilst the Tea Cosies and Waste Bins look pretty, your actually defeating the object of fitting a CAI which is to remove the restriction of the OEM Induction loop, I would also suggest that the filters in use here are also too small.

Although these may claim to add BHP they cant, you can only use a volume of fuel and air that is the equivalent the volume of the piston and bore cavity at full stroke (Unless compressed - FI) therefore the OEM airbox is more than adequate for this, but because of the induction loop on some models and or the placement of the intake on others there becomes a vacuum issue at mid to high revs, as the air to replace that sucked in to the piston is either not there or significantly less.

Removing the air box and sticking a filter on the MAF removes this restriction. Adding heat shields as you have done just makes this restriction worse than the OEM version. And you don't lose power due to heat build up, as you have an air temp sensor, and this air temp sensor in conjunction with the MAF and the ECU ensures that the AIR:FUEL ratio stays the same no matter what the temperature.

You do lose power though by having a filter that is too small and bolted directly to the MAF, this is because the MAF needs a steady air flow to read the mass of the air correctly flowing through it in order to give correct volume readings, the OEM air box allows, and so does a large filter. A small filter causes turbulence in MAF, and this is the reason you lose BHP because your AIR:FUEL ratio is wrong.

So you either need to move the small filter further away from the MAF or fit the biggest filter you can. I used to have a K&N CAI Fitted. I then following research swapped out the biggest Piper Filter I could find and the difference is like night and day.

Hope it helps, but some fantastic engineering skills here guys...
Click to expand...
Educated :thumbsup:
 
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