Panel air filters: improvements to be had?
Discussion
Are there opinions out there on performance gains to be had on a change of air filter? Has anyone made any comparisons? If so: which worked best? any results? how much was it? Some of the after-market items seem to be very expensive for very little in the way of material or manufacture.
My understanding is that the foam type are good but I suppose you lose some surface area through the supporting mesh. Perhaps the rigid convoluted type work best.
Has anyone cut short the length of induction tube, installed a large cylindrical filter and used the existing tube to direct a cooling airflow?
Any thoughts appreciated.
My understanding is that the foam type are good but I suppose you lose some surface area through the supporting mesh. Perhaps the rigid convoluted type work best.
Has anyone cut short the length of induction tube, installed a large cylindrical filter and used the existing tube to direct a cooling airflow?
Any thoughts appreciated.
Tim at ACT does some one off K & N panel filters which I am lead to believe are only available through ACT. I have run one of these for many years and am more than happy with the improvement. Standard foam filter is a very oilly affair and quite restrictive. Price from ACT approx £65:00ish.
2Munkys said:
Are there opinions out there on performance gains to be had on a change of air filter? Has anyone made any comparisons? If so: which worked best? any results? how much was it? Some of the after-market items seem to be very expensive for very little in the way of material or manufacture.
My understanding is that the foam type are good but I suppose you lose some surface area through the supporting mesh. Perhaps the rigid convoluted type work best.
Has anyone cut short the length of induction tube, installed a large cylindrical filter and used the existing tube to direct a cooling airflow?
Any thoughts appreciated.
My understanding is that the foam type are good but I suppose you lose some surface area through the supporting mesh. Perhaps the rigid convoluted type work best.
Has anyone cut short the length of induction tube, installed a large cylindrical filter and used the existing tube to direct a cooling airflow?
Any thoughts appreciated.
I've done a bit of work on the dyno with this,Bruce.The cylindrical filter set up on earlier Griffs isn't quite as good as the panel type on later ones,due to the panel one only being able to draw in cold air.I've tried to run a short induction tube with cylindrical filter,but even feeding this with cold air isn't as good as the panel in the nose of the car.Once you've seen the results on the dyno,you can appreciate why TVR went over to the panel and airbox.There had to be a good reason,as it's such a tw4t to change!
I never made a direct comparison with foam type Vs K&N etc.The K&N is not exclusive to ACT,and is also available from RT racing,for fifty something pounds from memory.Big advantage of the K&N has to be the cleaning aspect!
2Munkys said:
.......Think I'll pop next door and ask Tracy if I can borrow a pair of her finest denier........ erm...again.
You sure you dont have any yourself Bruce?
forgot to say,if you've only got old socks,we tried this and they dropped nearly 10bhp,so not worth fitting!
Edited by mongoose on Saturday 3rd February 21:10
K&N are expensive to have manufactured, we commissioned the tooling for this filter & distribute, and have to buy big quantities.
The foam filters are ok but when they are small relative to the flow requirements of some of these cars they need cleaning very regularly, can become restrictive even after 1000 miles, i've no problem with the foam filters in applications where the filter is bigger and in a better location, infact we're going to be using Pipercross in one of our induction kits for a different model.
The foam filters are ok but when they are small relative to the flow requirements of some of these cars they need cleaning very regularly, can become restrictive even after 1000 miles, i've no problem with the foam filters in applications where the filter is bigger and in a better location, infact we're going to be using Pipercross in one of our induction kits for a different model.
Gassing Station | Griffith | Top of Page | What's New | My Stuff