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Fab4MR2 wrote:WHY?! Why?! Why you say?! I'll tell you why! Because it's there!!!!
That and some of us are just stinking purists at heart.
...!, a Karmann Vortex device and a hot-wire MAF. ..! greglebon wrote:As the standalone ECU uses a MAP sensor, I can basically stick anything in the airflow and simply log the data from it.
Be dead easy to get a comparison.
I'd definitely be interested in hearing what kind of readings you come up with. I'm just praying that we finally get some rain to melt the stuff, so that I can get to a friends house for Christmas, and get to the damn store for some more groceries, let alone anything else. 
This sucks, big time! 
That really made my day as it happened just before the weekend and made getting a new one a more lengthy process. Anyway the car's up and running again, and much better than lately, so I guess the alternator must have been on the way out for awhile. I drove the car for a couple of days to readjust to it and then compared the ITG filter against the stock unit. My HKS exhaust was sounding as nice as it ever has, so I was particularly happy. The car also seemed to idle well and also seemed to pull away from a dead stop relatively smoothly, however, it was a little too loud at top end, sounded a bit strained, and seemed to run out of steam a little too early. Fortunately, the exhaust note did not change very much. I guess the alternator must have really been going south for a while, as the car hasn't sounded this nice in quite some time. With the stock filter the car idled about the same but did pull away from a dead stop just a little more effortlessly than with the ITG. Accelerating in 2nd gear from about 3K up to redline a few times is where you can really tell the difference. The car was now really pulling all the way to the top very smoothly and did not sound like it was straining to do so. Its downfall is in its design, as it has far less surface area than any of the other drop-in filters made for this car. In third place, of three major drop-in filters generally available, the K&N comes in third. It also suffers from too little surface area, which is unfortunate as they could probably have the best filter if they had just designed it better, like some of their current ram air type designed units. I might even test the TRD unit I got, although that won't have any really bearing for anyone else as they have been extinct for some time now, except for the one lone unit I happened across. 
cartledge_uk wrote:Good stuff
CAn you do a review of cone filters next
Firestick wrote:Cheers Fab my suspicions are confirmed.
I myself have been further modifying the stock intake piping by taking further material away and I am very happy with the results which is an all round improvement to response, noise and engine flexibility.
(Bahnstormer) | 2004 RX8 231 (the Racecat) | 2001 Volvo V70 (Swedish eBay barge)| 1988 MR2 SC Super EditionFirestick wrote:Have you got any pics/details of what you've modified? I've always been a little wary of cone filters
Fab4MR2 wrote:I'd be happy to post some pics if someone could tell me how or where, as I have had no luck trying to insert them here.
-Maxmonkeymax wrote:Fab4MR2 wrote:I'd be happy to post some pics if someone could tell me how or where, as I have had no luck trying to insert them here.
Hi Fab4MR2,
There's a guide here:
http://www.imoc.co.uk/forums/viewtopic.php?t=64630
If you still have problems, PM me and I'll try to help out.
(Bahnstormer) | 2004 RX8 231 (the Racecat) | 2001 Volvo V70 (Swedish eBay barge)| 1988 MR2 SC Super Edition
I especially wanted to use Carpron because they are dedicated to Toyota and have a special MR2 only section (what snobs ). However, for some reason, the damn site wouldn't let me log on after I had registered. I finally figured out a trick way to log on, but it makes no sense. Hopefully that will go away and I can upload other items I have worked on, later on. You can find them all at the following site: http://carpron.com/multisite/v/Upload/F ... =xaa52c7b3. Fortunately, I have a nice shiny '89 SC that I haven't hacked up yet, otherwise there would only be modified pics, and no unmodified ones for comparison. That made a bit of a difference, but it would be negated as I started loading up the trunk with stuff. This solved everything. It is only slightly affected now when the trunk gets extremely full (I mean really, really full) and that isn't very often.(oh, well). The only thing I will probably do differenly, on the Sc, will be to cut nice clean slots, on the air intake piping, instead of drilling all those holes. I didn't have a dremel cutting tool until after I had already done that. 
'Heath Robinson' but I'm willing to give it a shot if both you and Firestick have had success.- all the pictures of the pipework are what you have removed, so the air flows from the intake, straight through the trunk and to the filter - yes?(Bahnstormer) | 2004 RX8 231 (the Racecat) | 2001 Volvo V70 (Swedish eBay barge)| 1988 MR2 SC Super Editionbenedwards64 wrote:Thank you!
I have to say it all looks a bit
Let me just confirm what I've worked out from the photos
Also, what would you think of modifying a cone filter to sit in the trunk in place of the airbox?
Smith screwed up the main thruster gyros, it was the only way I was going to get the Jupiter back to earth! If I only had some MKIa cams in it I'd be almost perfectly happy with it. So you now have air coming out of the holes, on the air intake piping, and from the normal intake piping outlet. The air will run both directly across the trunk and also around the back of the tail light trim piece, etc. Also remember not to reinstall the trim pieces that go over these two areas, because unless you modify them they will definitely impede airflow and put you back at step 1 (I've tried it). I do hope at some point down the road, however, to place some very neatly spaced holes, in these trim pieces, and reinstall them in order to hide the giblets. As I believe the latter opening is at least as big as the other one, then there is nothing more we can really do. The original obstacle was that god awful pipe work behind the tail light trim and deciding how, after removing it, to further unobstruct the air flow from the passenger side to the drivers side. I had to "Robinson" the air intake piping and the air filter box because their intake and outlet pipes pretty much extend back behind that trim piece and the air flow was still being mainly directed behind it and was therefore impeded by it, especially when the trunk was loaded. The only piece that looks really hacked, when all is put back together, is the intake piping. That will be solved when I cut slots in the next one, instead of drilling holes. The filter box alterations are not even really noticeable. It would have to be a rather large one to exceed that of the stock filter. And unless you just have to have something that people will think is a bit more cool looking I would not even consider it as it would take up a lot of space in the trunk, and any time you start loading stuff youd have to try and keep it away from the filter. With this setup that is never an issue. I have also run it temporarily without a filter and not noticed any real difference. In fact, I'll try and do one last critique of each of the filters, now that my car is running at its peak with the new alternator on it.'cage,' maybe reinforced with some wire mesh, just to keep things in the trunk from rattling against the filter. Obviously I'd make sure it would still give plenty of airflow. Now I just need to find someone with a dremmel I can borrow... 
(Bahnstormer) | 2004 RX8 231 (the Racecat) | 2001 Volvo V70 (Swedish eBay barge)| 1988 MR2 SC Super Edition(thereby creating two somewhat parallel sides of the filter), that could be sandwiched in the oem filter box. Then possibly an appropriate hole of some kind could be cut in the filter box to allow air into that section of the filter. That would produce twice the surface area that the drop in K&N filter has and probably please most everybody. The trouble is, I haven't seen one that is shallow enough to fit in the oem box. I would remove the airbox completely and replace with a cone filter, and use the flimsy bit of trim that sits in the trunk that covers up the whole lot on that side, just with slots cut into it and reinforced somehow. If I can reinforce it a little and fix it in place it will protect the cone filter from anything rattling around in the trunk.(If you don't have this in the US spec cars I will get a pic tomorrow when it is light to illustrate the bit I mean)(Bahnstormer) | 2004 RX8 231 (the Racecat) | 2001 Volvo V70 (Swedish eBay barge)| 1988 MR2 SC Super Editionbenedwards64 wrote:No, not in the airbox itself.
Others have normally used a straight pipe for this and such a large diameter filter that there is no way to cover it up. It would certainly be less objectionable if it could be fit behind the trim piece in a proper manner and yet still get proper air flow. Fab4MR2 wrote:
What would be great is if a cone filter could be found, which has an opening in the top-middle of the filter, as some do
?