Tuning DIY intake for my Fiat 500 Twinair :P

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Tuning DIY intake for my Fiat 500 Twinair :P

connorling

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Hi all,
I have recently bought a Fiat 500 Twinair 0.9L with the 85hp version as Australian Fiat hasn't released the 100hp version.




anyway, I was hoping to hear the intake noise so did some research on some intake system, the only one I came across is from Japan
600x450-2015061100007_zps7ztuixwh.jpg





and with the import company, this intake would cost around 430 AUD. for some AL tube and couplers and a pod filter for 430AUD, I decided to make my own.


the only hard bit to source was the adaptor from the stock rubber hose (ID 70mm) to the tube 76mm OD.
I managed to find the adaptor from a local store, it supposed to be a adaptor to connect a cold air feed to the pod filter.


anyway, I have spent total of around AUD100 and that's the result.
received_10206380982415780_zpse22tsxd4.jpeg




the issue with this set up is the air filter sitting really close to the exhaust manifold, the pod filter do feel really hot after a short drive. I could have set it up same way as the 430 aud one, but the tube will be rubbing the sensor near the intake manifold (one with the blue hose).


so I plan to do this:
received_10206381137659661_zpsntzeikpb.jpeg

I run out of the couplers last night, but this will be my set up after I get more couplers. the pod filter is sitting in front of the battery, and its lot cooler there even after a long drive.




the result:


it does feel a lot more responsive, and u can hear increase in the air sucking noise + u can hear the compression surgy when taking off throttle.


overall it isn't much louder than stock because the twinair is a noisy engine to start with.


any opinion is welcome, and yes I know its a "hot air intake", but the intercooler is there to cool it down. I might loose a few hp, but why not . haha
 
Last edited:
why so much tube, why not just stick a filter on the end of black pipe?



because for two reasons:


1) not enough space between the bonnet and the engine.
2) very hot on that side of the engine bay.
 
Great example of DE-tuning...
It's always bad to have a filter under the bonnet, it's likely to loose about 10% of it's original power, once the engine is hot...
And when it's an oiled filter, it will destroy the MAF sensor sooner or later as well...
 
those metal pipes will heat up too though

after a long drive, and hard drive, the pipe isn't that hot at all, so does the filter. the pipe is slight warm, the podfilter is stone cold.
 
Will do something similar very soon :) bump the thread :)
 
Half way through my Sport 104hp mock up air induction system. Had a dry run today and it sounds better than stock.
See pictures of the build so far . Has a strong induction noise on hard acceleration in third.
I drive a 2014 Fiat 500 Twin Air Sport, its got the 104hp engine, a six speed gear box ,
plus electrical locking front diffs and disk brakes all round
 

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Half way through my Sport 104hp mock up air induction system. Had a dry run today and it sounds better than stock.
See pictures of the build so far . Has a strong induction noise on hard acceleration in third.
I drive a 2014 Fiat 500 Twin Air Sport, its got the 104hp engine, a six speed gear box ,
plus electrical locking front diffs and disk brakes all round
Hi Elese, I'm looking to do something very similar with mine, what diameter pipes have you used here? It's just I wanted to make something like this on quite a tight budget. Thank you!
 
I used standard size drain pipe from screw fix and one reducer into the air filter and you also require two bends. Cut a 50mm wide section of pipe and split it. Slide it over a pipe elbow and glue in place. This part goes in the turbo pipe end. I listed all the sizes you need for each end. Lag well with exhaust header tape twice.
Oddly, the system has more air flow now, and the standard air recirculation valve now whistles when you take your foot off the pedal. Sounds like a dump valve, how odd.
 
Hi Elese, thanks for getting back to me so quickly! I'm looking to install this before it gets too damn cold outside, it also means I can take advantage of the dense winter air!
I'll do some more tinkering and hopefully get this done soon.
 
Hi all,
I have recently bought a Fiat 500 Twinair 0.9L with the 85hp version as Australian Fiat hasn't released the 100hp version.




anyway, I was hoping to hear the intake noise so did some research on some intake system, the only one I came across is from Japan
View attachment 430020




and with the import company, this intake would cost around 430 AUD. for some AL tube and couplers and a pod filter for 430AUD, I decided to make my own.


the only hard bit to source was the adaptor from the stock rubber hose (ID 70mm) to the tube 76mm OD.
I managed to find the adaptor from a local store, it supposed to be a adaptor to connect a cold air feed to the pod filter.


anyway, I have spent total of around AUD100 and that's the result.
View attachment 430021



the issue with this set up is the air filter sitting really close to the exhaust manifold, the pod filter do feel really hot after a short drive. I could have set it up same way as the 430 aud one, but the tube will be rubbing the sensor near the intake manifold (one with the blue hose).


so I plan to do this:
View attachment 430022
I run out of the couplers last night, but this will be my set up after I get more couplers. the pod filter is sitting in front of the battery, and its lot cooler there even after a long drive.




the result:


it does feel a lot more responsive, and u can hear increase in the air sucking noise + u can hear the compression surgy when taking off throttle.


overall it isn't much louder than stock because the twinair is a noisy engine to start with.


any opinion is welcome, and yes I know its a "hot air intake", but the intercooler is there to cool it down. I might loose a few hp, but why not . haha
I know this post is from agessss ago, but was wondering where you got all the parts to do that kind of set up, I already have an induction but it goes across the engine and would much rather it sat now yours is/was
 

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