Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie
Please note that it is not permitted to have referral links posted in your signature. Keep these links contained in the appropriate forum. Thank you.
https://www.boards.ie/discussion/2055940817/signature-rules
https://www.boards.ie/discussion/2055940817/signature-rules
***Motors Chat Thread*** Round 1
Comments
-
The best thing about the Simota is that it is enclosed in a heat shield like a stock air box. The guy who helps me with the big jobs on my car at work thought I had put a backbox on my car when he heard it, he didn't know I had put it on and used that word 'rasp'
If I was heading to the meet it'd be dead handy and you'd know at least. I'd say hold off a while for a week or so, research the **** out of it (a golf gti is as common as an Astra Sri ) and theres loads of discussion on it surely0 -
Ardennes1944 wrote: »The best thing about the Simota is that it is enclosed in a heat shield like a stock air box. The guy who helps me with the big jobs on my car at work thought I had put a backbox on my car when he heard it, he didn't know I had put it on and used that word 'rasp'
If I was heading to the meet it'd be dead handy and you'd know at least. I'd say hold off a while for a week or so, research the **** out of it (a golf gti is as common as an Astra Sri ) and theres loads of discussion on it surely
Thanks for the help! Off to do the homework now 0 -
-
-
-
Advertisement
-
-
Ardennes1944 wrote: »guess whos parked outside RJ's gaaaaaffffff
If a boardsie ever posts that at 9 in the morning about me I'll be buttoning down the hatches.0 -
Ardennes1944 wrote: »guess whos parked outside RJ's gaaaaaffffff
...... Car looks very well in the flesh with, all the little mods go together nicely. You're outside the neighbours gaaaaaaaf though ...0 -
-
-
Advertisement
-
Thanks for the help! Off to do the homework now
I gave up paying for pre-made intake stuff, you can make your own far cheaper and if done right will custom fit exactly your can and outperform these type of units. The OEM Airbox (in anything performance orientated) will have been pressure wave harmonically balanced in its dimensions and have a specific intake length to manipulate air waves bouncing back and forth from the intake as it closes. This is known as Helmholz resonance (and the plastic flange things in OEM intakes are Helmholz resonators).
Simota and [most] other expensive branded induction kits do not have this type of design as even ones sold as "for X car" are made up from a core set of mass produced components. Therefore the first step for performance modification would be to increase airflow without changing a carefully designed intake system (unless you have something really old or basic which doesnt have a good stock intake system). This is where a drop in Panel filter comes in.
My own preference, given I cannot realistically calculate air pressure waves and intake tract length for a given engine would be the more "American" approach: RAM Air induction. The principle here would be to increase airpressure in the airbox so much you actual have a slight net positive pressure (obviously only at speed). You generally will need some pretty well placed Velocity Stacks (trumpets) on a short pipe and a totally sealed airbox to actually achieve this and a high flow airfilter.
The logic being the engine no longer has to "suck" in air, when it gasps for air its pushed through.
On the plus side, way cheaper and better than the vast majority of commercial bolt on induction kits.0 -
Matt Simis wrote: »I gave up paying for pre-made intake stuff, you can make your own far cheaper and if done right will custom fit exactly your can and outperform these type of units. The OEM Airbox (in anything performance orientated) will have been pressure wave harmonically balanced in its dimensions and have a specific intake length to manipulate air waves bouncing back and forth from the intake as it closes. This is known as Helmholz resonance (and the plastic flange things in OEM intakes are Helmholz resonators).
Simota and [most] other expensive branded induction kits do not have this type of design as even ones sold as "for X car" are made up from a core set of mass produced components. Therefore the first step for performance modification would be to increase airflow without changing a carefully designed intake system (unless you have something really old or basic which doesnt have a good stock intake system). This is where a drop in Panel filter comes in.
My own preference, given I cannot realistically calculate air pressure waves and intake tract length for a given engine would be the more "American" approach: RAM Air induction. The principle here would be to increase airpressure in the airbox so much you actual have a slight net positive pressure (obviously only at speed). You generally will need some pretty well placed Velocity Stacks (trumpets) on a short pipe and a totally sealed airbox to actually achieve this and a high flow airfilter.
The logic being the engine no longer has to "suck" in air, when it gasps for air its pushed through.
On the plus side, way cheaper and better than the vast majority of commercial bolt on induction kits.
Thanks matt,
great post How would I go about doing this?
Im mechanically challenged lets say
0 -
RoverJames wrote: »...... Car looks very well in the flesh with, all the little mods go together nicely. You're outside the neighbours gaaaaaaaf though ...
0 -
A high flow sports cat should solve the issue.
It gives a better sound and performance but will pass the nct.
I've got a 100 cell mongoose one in the ST and it flew through the emissions test.
The cat should be a simple enough job to swap, on mine its 4 bolts and a lambda sensor that need to be removed / replaced.0 -
-
Thanks matt,
great post How would I go about doing this?
Im mechanically challenged lets say
For now I would simply get a good performance panel filter and ensure the Air box is fully sealed and air tight. Check the intake side of the airbox and ensure there is nothing blocking flow etc too.
See how that goes before planning something more custom or expensive.0 -
-
-
0
-
Advertisement
-
-
-
-
-
-
-
-
-
Matt Simis wrote: »This is the panel for you then:
http://www.knfilters.com/search/product.aspx?prod=33-2888
Here are there other stuff, ie induction kits:
http://www.knfilters.com/search/appsearch.aspx?type=auto&year=2007&make=VOLKSWAGEN&model=Golf+V+GTI&engine=2.0L
Would look to the cheaper panel filter myself though.
Thanks matt, I'll let you know how i get on 0 -
Advertisement
-
![[Deleted User]](/applications/dashboard/design/images/defaulticon.png)
This discussion has been closed.
Advertisement