Please read the link provided mmmmk?

http://forums.maxima.org/showpost.ph...&postcount=143

FI vs N/A. N/A = revs

Our stock TB = 70mm. But...
http://forums.maxima.org/showpost.ph...1&postcount=18

And...
http://forums.maxima.org/showthread.php?t=434821
http://forums.maxima.org/showthread.php?t=517758

 

I searched my friend's shop and came up w/ several pieces of suitable 3" pipings, but I know I don't want metal because of the heat issue. I may go the HomeDepot route for this. The biggest part is to attach to stock airbox, and make it look stock. For those w/ either WAI or CAI, just get a pipe, cut a hole and make the mounting plate for the MAF. The only problem is, it could make the engine runs too lean and POOF... So when I get one made, I'll go to TS and install it there and have Tadashi check it out and retune.

 

It WILL make the engine run lean. (Larger housing)

 

I got that from your earlier post. That's why I won't be driving around w/o tuning it first.

 

what he said.

 

I think it almost goes without saying that I will need a UTEC since I have had the reflash done, and now the intake.
Its not killing me not knowing my power because I can feel it. But, I will be visiting the dyno a lot in the next few months I think.

 

I think another reflash is all you need, and have TS dyno tune it. UTEC need adjusting when temperature or altitute changes, from what I read.

 

The turbo is after the MAF. The MAF is 3" diameter inbetween the filter and turbo. Pulling the amount of air through a 3" pipe would be the same for either, one is pulled by engine vacuum, other is from turbo vacuum which is a higher volume. This is on an engine already bigger than the Nissan. As the hp level gets to the 500+ level 3.5" is common but the volume of air needed for that hp level is much greater. Over that they start looking like sewer pipes at 5".
Tuning with a WB (on the car or at the dyno) is the only way you will know if your A/F ratio is correct.

 

You guys need to read my damn sticky and get caught up with the electronics behind this.

It's not only the volume, it's the added throttle response and the timing changes that are the benefits.

 

In the first thread one of the responders links to Kenne Bell. He was big into TBs years ago. He touted the 70mm throttle body on them too along with a bunch of other horsesheet. 90% of his stuff has been debunked by the TB community, can't see it being different for any others.

 

Ok, moving on...

 

Turbos and superchargers can force more air in the engine than pistons can suck in, isn't that why they are forced induction? What the Max has is a stock 3" TB with a 2.75" MAF housing, so there's like a vacuum effect there. You have a smaller, 62mm (2.45"), TB with 3" MAF housing on your Buick, so your MAF allows more air thru than your TB. You would need larger TB before larger MAF. If this is not the case then what am I missing?

 

Didn't read my thread/sticky............did you?


:sigh:

 

Please don be disappointed, NmexMAX...

I did read all you links you've posted. I was talking about just the airflow.

 

I may not quite understand all the tech info coming in (it is appreciated though) but I will say your engine bay is looking sharp!!!

If you want to try something else for what's left of your stock intake, check this out http://www.6thgenmaxima.org/forums/v...235&highlight=
And since your in there cutting up stuff, why not open up that stock intake all way too http://img168.imageshack.us/my.php?i...1010015zh6.jpg

 

Not a bad idea. I'm all for more airflow, but I prolly need that UTEC to get more gas in there.

 

Deus, what size is your current piping/housing?

 

Ill have to check. I am using the Stillen intake, with my own pipe beofre and after the MAF up to teh Stillen pipe.

 

RHMax, the intake track to the turbo is 3". After the turbo the stock up pipe from the intercooler is 2.75" and stock TB is 58mm. Since it's under pressure the TB size is not as important up to a certain hp level. In a total stock state of intake some guys have gone low 12s. An open element filter attached to the MAF is usually the first mod done to Buick. It's been my experience with atmo motors that they benifit from a venturi effect of the intake ie; larger intake going down to a smaller TB.

 

That's why turbo cars gets the most gain when change from stock air filter. Plus you can make more power on a turbo car w/ stock TB by going with larger turbo to a certain point, as you said. The setup we have in the Max is a smaller MAF than TB. With those who went w/ Fujita, they run a little leaner because of larger tubing for the MAF without tuning. I just want the get the same size MAF and TB and keep stock airbox, get a more air at higher RPM and maybe raise the peak a little higher.

 

How are you going to modify the stock air box to accept a larger intake pipe? With the increase in potential flow why do you want to keep the stock air box?

 

Stock box seems to work well for a lot of 350Z guys, with K&N panel. And I dynoed about the same Tek's w/ Fujita CAI with my modified airbox setup and K&N before TS ECU.

Both openings of the MAF housing is 3", the middle tube is 2.75. I don't want to hack up my stock one because they're $200 used and $500 new, so I'll use a PVC or something. I'll get to it in the next week or so, I hope.

 

http://www.fullthrottlespeed.com/items.asp?CartId={57DA918E-A715-4B03-ABE7-6E477EVEREST75C5DEA}&Tp=&iTpStatus=1&Cc=PIPES
This might help for the pipes.
Do you have any pictures of the modified stock box?

 

I was looki ng at the intake a few moments ago, and I'm wondering if the front scoop can be attached to some kind of sealed box which contains an open element which then goes to the MAF and then throttle body. If the battery was relocated to the spacious trunk, that would make tons of room for a sealed airbox. Any ideas?

I also like the idea of a larger pipe funneling down to the throttle body to create a Venturi effect.

 

Thanks for the link. I found one of those tubes at my friend's shop, but I think plastic/PVC so the sensor won't get too hot.

No pics, just remove the lower resonator so more air can get in the box than the stock long neck intake. Some said it doesn't make a difference, but it works for me.

 

You can make a cover like stock box with openning in the fender like a CAI.

 

Did removing the engine cover make your hood feel hotter or anything during a regular drive?

 

No, since it only covers the front valve cover.

 

Awesome thanks bro. Great job on it. My lady is going to buy this for me on my B-Day!! lol I will put pics of my max up soon. Thanks again.

 

Looking forward to pics of it. I have my engine cover off in preparation for paint. I removed the ugly NISSAN logo and filled it in.

 

nice mod it looks great, camshaft upgrade would go great with that IM longer and more valve opening

 

I `certainly have cams in mind. Not thrilled about it being a 13 hour job though. I may wait until I get headers.

 

Nice!! So does the engine cover fit back properly after the manifold was installed? Oh wow!! Do they even make Cams for the 6th Gen? I concur with you on getting the headers first.

 

Z33 cams fit the A34. So, whatever aftermarket cams fit the Z33 (350z), they will also fit the A34 (6th gen)

 

I had to mod the engine cover to fit. I am presently sanding it to prep it to paint it after removing the nissan logo and filling in the impression left by the logo.

 

Nice!! Ok thanks for the heads on the engine cover. Looking forward to pics of the cover when complete.

 

Way off topic but... Where can I purchase the CE Y-Pipe??? I cant even get there website or the 800 number??? Any clues to this???

 

CE is out of business. Cattman is making a y pipe that should be ready shortly

 

Ok thank you very much for that info. I was going crazy trying to find them. Guess I gotta make the intake priority again. Again; thanks for the info.

 

Grim, if you really want a CE y pipe, Cattman and Taz (racingline) were selling the remaining pipes for cheap since CE went down.. I don't know if they have any left though, but it could be worth a shot.. but if money's not an issue, and you want a better quality one, I'd definitely wait for Cattman's.. I'll be swapping out my CE pipe for his when it's out, more than likely.