How much is too much for a pathfinder throttle body? Id like to do one and believe it will be worth it after tuning but Im only really seeing ones around $150 - $200....is that average?

Also most of the links are dead for installs when I search, any tips, links or pics? just wondering bout the adapter plate mainly

 

Yes thats normal. And you won't really see gains. Maybe if you do the z32 maf and tune a lot. You're looking at a lot more money to make it worth while.

 

Any amount is too much imho, I don't think they are worth the effort.

 

I just know that NmexMax had good results from the bigger maf and tunning. It's more than just adding a tb and bigger maf.

 

hmm, money spent better elsewhere I guess?

I was just going by the common knowledge of a intake manifold with a small plenum will benefit from a larger throttle body but one with a larger plenum will not. Just seems like the 00vi's 1st/main plenum is quite small so I figured it would be a good mod.

But agreed, seems like most that have done it arent that happy w/ it

 

Strange though how I left the stock TB on.

 

Yeah I know you kept the stock tb thats not what I meant. Anyway, mikeSDA do you have an 00vi or no?

 

Yes, but to me it's stills trange that I gained.

 

well wouldn't tuning the ecu to the different maf give the gains? Idk. It's strange that the same size tb can gain hp when just using the bigger maf and tunning. You'd think it wouldn't matter since the tb can still only take in the same amount of air. Would be nice to know exactly why it gives gains.

 

The larger MAF housing made the throttle response explode, literally.

One of you 4th gen members needs to try it.

 

Yes I do

Also, since a bigger maf seemed to help, what about using the option on the e-manage ultimate to make an airflow map which allows to get rid of the MAF?

Not that I have the EU, but wondering if anyone has used that tuning option?

 

I would love to try the bigger MAF NmexMax. You used the z32 maf correct? I'll need to get a vafcII to make it beneficial tho. If I can find a z32 maf with sensor installed already that should be helpful correct? Think it would be a good mod with the 00vi. Where did you find yours? Pretty expensive from what I've found online...

 

I did not use the Z32 unit. IIRC, it's the same size, just different voltage curve. I used an M62/S62 unit. It's found on many cars. I paid about 100$ for it. But, the A32 MAF set-up is different. The A33 sensor can just be bolted out and tossed into another housing. The A32 sensor can not be handled like that. 2 members on here 'bored' their stock A32 unit.

 

Someone gimme a maf and I will put the element in a bigger housing...

 

I have a blown one. www.car-part.com, less than 45$ shipped.

 

I was looking on car-part and didn't find much. I kept getting an invalid search thing. Weird. So can the z32 be wired up the the 4th gen with a vafc II or what. Would the j30 maf have the same effect? Those are the only two mafs that I found enough to go off of with. Wiring seems to be straight foward with them to work. Just don't know what would be needed with the vafc II. How does it all play together?

 

nmex, just to clarify, you were tuned before adding the larger maf correct?

 

Maybe a tad O/T but: What is the diameter of the stock 4th gen throttle body? And what is the diameter of the Pathfinder throttle body?

 

someone just measured 65mm stock and 70mm is for the pf.

I'd like to know if finding a z32 maf will be beneficial with the vafc. I have a sale pending on a vafc II right now so if it's worth it I might do the z32 maf and swap in the dek LIM and injectors to my 00vi...what kind of tuning would I need to do with the z32 is what I really need to know.

 

65mm stock TB? Nice! My 3.0L Eclipse GT is only 60mm stock. (Stock-to-stock a 3G Eclipse V6 vs. 4G Maxima is a driver's race, having owned both cars.) But now I'm mad that Mitsu didn't gve us Eclipse owners a 65mm throttle body!!

 

. . . .

 

4th gen is NOT 65mm stock. It is closer to 58-62...

 

So then how can you say you got gains if you were not tuned before this mod and then you altered your tune after the mods... that doesn't make any sense.

What sort of "gains" are we talking about here anyways? If we're talking about a couple horsepower then who's to say that gain wasn't just individual dyno run variation, or atmospheric variations from day to day. Even that's assuming both runs were one on the same dyno, which often times runs aren't.

 

K, that sounds much more realistic...thanks for clearing that up.

 

IIRC the maxima is 60mm throttle plate and the pathfinder is 70 mm throttle plate, Entrance and exit sizes im not sure

 

I never said I gained anything. I just posted my #'s. People on here say I gained, but no one, not even myself can say any one mod gave me x whp. I've optimized my set-up

 

IIRC Tatanko measured his stock tb and was about 65mm. Maybe it was 62.5... Now I don't remember. I thought 65 sounded high but it was late at night and I didn't feel like checking. It is more than 60mm tho. He measured it.

 

Keep in mind, when measuring TB's, measure the rear, since they 'flare' towards the front mouth.

 

yeah thats true. He most of measured from the front side. I always thought the stock tb was just 60mm. Either way, I'm still wondering what will happen if I use a z32 with a vafc. I think I'm going to buy the vafc I found anyway then look to try and find a cheaper z32 or get the j30 maf. I just dont know what I'll have to do with the vafc to make sure the car runs correctly with the bigger maf. Just set the in/out correctly? said to be 2/4 on the vafc and the z32 or j30 will work correct?

 

Not sure of the VAFC is like the SAFC in that you can set different in/out numbers. But you need to play with it(different settings) in order to make it work. An in cab wb is very helpful for this. If you cannot find the correct settings, you can just tune it the way you want.

 

IIRC vafc II does have the in/out settings. I believe it was 2 in 4 out to make the z32 work correctly. But I wasn't sure if thats all it takes. I won't be swapping in the 5th gen lim or injectors I decided so the vafc will basically be to get the z32 maf to work and fine tune my a/f for a little extra power.

 

Anyone recall the size of a stock 3.5 dbw tb?

 

70mm.......

 

Thank you you kevlo.

 

i put a pathy tb on a 4th gen 3.0 with usim.


and also the a32 maf element can be taken in and out ,just needs slight work .
i have like 4-6 a32 mafs . ive done things with them but wont start testing till i get a EU and that could be next year.