Gripenfelter Posted March 10, 2007 Share Posted March 10, 2007 (edited) Not sure why no one has done this yet. I have a 2001 Pathfinder with the 3.5L V6. I put a drop in K&N air filter into the air box and cut off part of the side of the air box that faces the back of the head light. Free ram air. Air that gets around the headlight or between the hood and the top of the headlight will now go directly into the airbox. No dyno results but there is a definate difference in performance. Especially over 50 mph. I'll report back any changes in fuel economy. I normally don't go over 2000 rpm when accelerating and you can feel a bit better acceleration with the new mod. Next will be a custom catback exhaust and maybe some headers if I can convince my buddy to fab up some. Edited March 10, 2007 by Gripenfelter Link to comment Share on other sites More sharing options...
90seven Posted March 11, 2007 Share Posted March 11, 2007 You accelerate sub 2000 RPM? Man I'd hate to be behind you at a traffic light. But then again, my VG is weak as hell compared to the VQs. Anyway, let us know how you built this. Show some pics. Very interested. Link to comment Share on other sites More sharing options...
govols74n Posted March 11, 2007 Share Posted March 11, 2007 The same as taking the lid off...lol Link to comment Share on other sites More sharing options...
NismoSkyZ Posted March 11, 2007 Share Posted March 11, 2007 Why not just get a pop charger? You accelerate like a granny. I don't go below 3500 and when I feel like hauling ass I touch the red . Link to comment Share on other sites More sharing options...
RWC5S2 Posted March 11, 2007 Share Posted March 11, 2007 Ok, so I am thinking "what can I do to help this rig breath better and maybe improve the MPG"? Well, I hear all about the K&N filter system and have some buddies that think that is the only way to go. But, good grief, it costs $300 for a lousy air filter and a chunk of pipe. No problem grasshopper. You're at Pep Boys. I picked out an adapter for the cool air filters and buy what looks to be a decent air filter. The cone style like K&N. It has got to be better than the 1"x2" little hole my OEM filter is sucking air through. What the heck, I buy the stuff and exchange my clunky OEM system for the new sleek, wazoo we guarantee all kinds of junk system. you can see a photo under "what more can I do to my R-50" on page 3 of the forum lists. Link to comment Share on other sites More sharing options...
Gripenfelter Posted March 11, 2007 Author Share Posted March 11, 2007 You accelerate sub 2000 RPM? Man I'd hate to be behind you at a traffic light. But then again, my VG is weak as hell compared to the VQs. Anyway, let us know how you built this. Show some pics. Very interested. I use the Camaro for racing. The Pathfinder is for cruising. When I acccelerate at 2000 rpm thats usually about the speed that the traffic around me is accelerating at. I'll post a pic later today of the airbox. Link to comment Share on other sites More sharing options...
Gripenfelter Posted March 11, 2007 Author Share Posted March 11, 2007 Pic of airbox attached. Not exactly rocket science lol. Link to comment Share on other sites More sharing options...
90seven Posted March 13, 2007 Share Posted March 13, 2007 I use the Camaro for racing. The Pathfinder is for cruising. When I acccelerate at 2000 rpm thats usually about the speed that the traffic around me is accelerating at. I'll post a pic later today of the airbox. Well, even if you allow the truck to shift at 3000RPM its still fairly decent. Its not break-your-neck speed. I feel 3000 is just right. 3500... well, that's a little more than needed to get off the line. sly Link to comment Share on other sites More sharing options...
Gripenfelter Posted March 13, 2007 Author Share Posted March 13, 2007 Well, even if you allow the truck to shift at 3000RPM its still fairly decent. Its not break-your-neck speed. I feel 3000 is just right. 3500... well, that's a little more than needed to get off the line. sly Maybe I have shorter gears or maybe everyone here drives like a *****. If I accelerate at 3000 rpm I leave everyone else behind. On to my 2nd tank of gas now. Needle is at 7/8 mark and I've gone 69 kms. Normally when its at the 7/8 mark I've only gone 49 kms. On my last tank of gas I got an extra 20 kms out of it. For a total of 245 kms till 1/4 left. This tank is looking more promising. Link to comment Share on other sites More sharing options...
navygz19 Posted March 13, 2007 Share Posted March 13, 2007 Well, even if you allow the truck to shift at 3000RPM its still fairly decent. Its not break-your-neck speed. I feel 3000 is just right. 3500... well, that's a little more than needed to get off the line. sly He also has a VQ...there's a huge difference between 3K on a VG and that on a VQ. Link to comment Share on other sites More sharing options...
Simon Posted March 13, 2007 Share Posted March 13, 2007 Bingo! The 3.5 will accelerate WAY faster than the 3.3 Even if we're talking automatic vs manual. Link to comment Share on other sites More sharing options...
90seven Posted March 14, 2007 Share Posted March 14, 2007 ...But then again, my VG is weak as hell compared to the VQs... I figured that.. Link to comment Share on other sites More sharing options...
nissandoms47 Posted March 14, 2007 Share Posted March 14, 2007 not really, i think the VG is better then then VQ, strength wise lol. Link to comment Share on other sites More sharing options...
90seven Posted March 14, 2007 Share Posted March 14, 2007 Should have I siad... slow.. instead of weak? Link to comment Share on other sites More sharing options...
Jarsiff Posted March 15, 2007 Share Posted March 15, 2007 with the front of your airbox open like that arent you worried at all about all that extra crap thats going to get in there? Link to comment Share on other sites More sharing options...
NismoSkyZ Posted March 15, 2007 Share Posted March 15, 2007 Well the vg is actually stronger, but the vq has more power. You should have done one of those Deckplate mods...you can't even wheel with your airbox like that. Link to comment Share on other sites More sharing options...
sandor Posted March 15, 2007 Share Posted March 15, 2007 Well the vg is actually stronger, but the vq has more power. I wouldn't say that. The VQ comes in many different forms, and is pretty stout as well. I have heard of plenty of guys on maxima.org that have s/c'd and even turbo'd the vq30 with no internal mods. Guys have run them up to 8400 and even over 10000 revs with no problems. I've extended my rev limiter to 7200, and take it there frequently; there is a lot of extra power up there on stock internals. The VQ35HR's in the new 350Z and G35's can take the power too. I'd say they are equally stout to the venerable VG30. Link to comment Share on other sites More sharing options...
Gripenfelter Posted March 15, 2007 Author Share Posted March 15, 2007 with the front of your airbox open like that arent you worried at all about all that extra crap thats going to get in there? I don't drive through mud or water. The filter will get dirtier faster but if you clean and oil it on regular intervals there shouldn't be a problem. Link to comment Share on other sites More sharing options...
dkpath96 Posted March 16, 2007 Share Posted March 16, 2007 I'd be afraid of rain or mist from other vehicles getting in there, but perhaps the K&N can repel that too. Awhile ago I did a similar mod by taking off the huge baffle thing behind the wheel well and just put a mesh screen and a splash shield over the hole to the air box. That also gave a little bit of a performance enhancement at higher RPMs. Here's the thing I'm worried about - I've gone through two MAF's since I did this. I'm now back to the paper filters to find out if perhaps I was over-oiling the K&N despite following their directions; it could also be from moisture getting through to the sensor. We'll see... Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now