Edd-XS 0 Posted June 14, 2006 Ill openly admit I dont know an awful lot about engines, infact pretty much anything I do know is from what ive picked up from this forum and by doing research. What I do know is that the air intake is vital as to how the engine will perform. We all know that hotter air is less dense so doesnt combust as well as cooler, denser air which leads me to think, what is the maximum amount you can reasonably do to keep intake temperatures and volumes at the best possible levels to aid performance? Im not suggesting an air flow meter in a fridge or anything silly like that, but more, what is the optimum intake method on a standard engine? Im toying with the idea of a big heatshield (aluminium sheet!) running from behind the pass. headlight to the pass. side top mount and putting a filter where the washer bottle would normally be and having a dedicated cold air feed going into the area. It would seem that locating the air filter over the exhaust manifold (excess heat) noticably affects performance, so would a drop in ambient temperature around the filter affect performance in a positive way? Just food for thought really so please excuse if ive said anything stupid! Discuss Edd Share this post Link to post Share on other sites
t16ryan 1 Posted June 14, 2006 (edited) who puts a induction kit over the exhaust manifold i fit mine behind the N/S/F headlight, then on track days whip the headlight out, http://i82.photobucket.com/albums/j275/t16.../205MI16005.jpg edit; image size. Edited June 14, 2006 by pugtorque Share this post Link to post Share on other sites
pugrallye 0 Posted June 14, 2006 yeah cold airbox is good idea, especially if you put a dedicated air feed to it Share this post Link to post Share on other sites
Edd-XS 0 Posted June 14, 2006 Well when buying a pipercross induction kit, all it does is replace the old airbox for a cone filter! I read a thread on here recently about the ambient air temperatures at different points whislt on a 'normal' drive, but what I didnt see anyone mention was a direct affect that it would have on performance (unless im being stupid and missed it!). Has anyone ever tried any special induction set-ups on MIs (or really anything) and found it beneficial? t16ryan do you notice a change when you remove the headlight so the filter is getting direct cold air? Call me sad but I find this all quite interesting! Edd Share this post Link to post Share on other sites
pugrallye 0 Posted June 14, 2006 (edited) yes, my previous Mi had a dedicated sealed airbox (with pipercross foam filter inside) fabricated out of ally, and a 95mm duct to a removed driving light aperture did make a difference in warm weather! I suppose the way to go ultimately is a ram air effect, as most of TB guys are using now I suppose if you wanted a bit of test and tune, creating a 'tuned length' of pipework from afm to air filter has mixed reviews and successes Edited June 14, 2006 by pugrallye Share this post Link to post Share on other sites
feb 47 Posted June 14, 2006 (edited) yes, my previous Mi had a dedicated sealed airbox (with pipercross foam filter inside) fabricated out of ally, and a 95mm duct to a removed driving light aperture did make a difference in warm weather! I suppose the way to go ultimately is a ram air effect, as most of TB guys are using nowI suppose if you wanted a bit of test and tune, creating a 'tuned length' of pipework from afm to air filter has mixed reviews and successes Do you have any pics of this setup? I don't see the point of having a K&N induction kit (although my car has one) in warm climates. I measured the air intake temperatures last week with it and was surprised to see them climb up to 65C! It's been a few years since I test drove a car with a standard setup but I don't think it felt any different to mine (i don't know how it would be in traffic but i suspect air temps would be lower than with the K&N kit) We could only tell the benefits (if any) if we take a car to a dyno with a standard airbox, then fit the K&N kit/different setup and compare the results. Edited June 14, 2006 by feb Share this post Link to post Share on other sites
pugrallye 0 Posted June 14, 2006 (edited) yeah somewhere dyno activity wouldnt give you a true reading though on either system as their is no airflow, i suppose in warm climates there isnt much difference between using a standard air box with say a K&N panel filter or a cone filter in a fabricated air box Edited June 14, 2006 by pugrallye Share this post Link to post Share on other sites
t16ryan 1 Posted June 14, 2006 its minimal but it helps a little more air,,, so best to do it you need all you can on the track , also i a induction kit in HOT conditions actually decreases BHP on the GTis as was tested at powerstation on the rollers Share this post Link to post Share on other sites
pugrallye 0 Posted June 14, 2006 yeah hence you fabricate an airbox to put it in Share this post Link to post Share on other sites
t16ryan 1 Posted June 14, 2006 when they are dynod they have 2 massive fans to blow air onto the car, if not some cars over heat as not being air coooled, Share this post Link to post Share on other sites
