i know i seen a thread about this a while ago, but fant find it anywhere.

basically i wanna know (dont wanna repost, but guess i am) about the advantages/disadvantages (on 5th gens) of a full short ram intake set up (with mid pipe), vs using the acordian pipe > resonator > maf > filter. ive heard the best id w/the stock resonator not to lose torque. ive had a the full intake for a while, thinking of going back to the old way to see how it is. any info appreciated.

 

ok, i found them.....

its wierd, all the 4th gens claim (dynos) either no diff, or better with stock midpipe, and the 5th and 5.5s seem to do better with aftermarket mid pipes.

 

In what way? ????

 

super6, could you post a link to that thread.

 

Why don't you ask me, I did the dyno.

 

you got VQ35

 

i found a few threads on the topic, still the dyno on 5th gens dont really show a diff between the stock snorkel and berk/frankencar midpipes.

http://forums.maxima.org/showthread.php?t=192990
http://forums.maxima.org/showthread.php?t=195391
http://forums.maxima.org/showthread....ght=FRANKENCAR (for 4th gens)
http://forums.maxima.org/showthread....3&page=1&pp=30 (NmexMAX)

im unclear on ur results, so is an aftermarket or oem midpipe better. and exactly is is it that the 4 gens clearly benifit form the stock midpipe and loose on aftermarket ones, just because of the vi?

 

It takes away the smoothness of the stock power curve, and is much too loud..

The difference in noise from no M/P to having an M/P was EXTREMELY apparent, and the difference was ~ 1-3HP (average) across the board (3.5k-6.5)

 

ur saying the aftermarket or the stock MP takes away from the smoothness?

and the aftermarket ais about +1-3 hp?

 

Tell me which is which.

 

thats waht im asking u which is which, and why does the graph no show anything below 4k rpms, how do u know the effect on low end power?

 

http://forums.maxima.org/showpost.ph...2&postcount=30


You try getting an auto not to downshift

 

hey manny i just took a a peek at your run files...and damn your running alot leaner than all the other vq35s ive ever seen....even leaner than Richard Brown!

oh yeah you are using SAE smoothing #3 right?

 

I use SAE 5 My car = lean, but safe after 5750 IIRC (13.5:1) Tail sniffer FTL

 

hey I was wondering...whats the difference between tail sniffer and upstream...etc? The dyno shop I'm going too...iirc, uses a wb02....where would they plug this into?

 

One is in the tailpipe in your muffler, and the other is in your y-pipe/cat area Upstream is ideal for more accurate readings, and the tail sniffer has been knoew to show leaner than normal conditions, expecially of the stock cat is still in place.

You will need to bung it somewhere.. Test pipe would be good ...

 

Does the shop actually screw in a wb02 into your exhaust? What happens if your car has no bungs available? Not that this is my case....I do have 2 bungs on my bpipe that they can use for readings...and since I have a test pipe, I don't think my exhaust reading wouldn't be too off would it?

 

I have to bung mine on my own they wont do it for me, since all my exhaust is stock, besides the headers. Not sure on the Cattman you got there.

 

Yeah I asked Brian to put 2 bungs on the bpipe before he sent it out to me...I have plugs in them right now...originally, I was going to rewire my secondary o2s and put them behind the main cat.....but I ended up gettin a test pipe and the simulator seems less of a hassle....so now I have two bungs just chillen....I want my readings on the AFR to be as accurate as possible...since I'm planning to dyno tune not baseline...I'm sure the position of my current bungs would provide accurate readings?

 

Always need a baseline.. baseline of the day FTW, meaning you need to know where to start tuning... But I know what you meant...

Anyhow, you should be fine as far as your readings are concerned.