OK...don't think many people had done this previously as the $200 cost + the cost of getting a "core" to exchange was a bit cost prohibitive I believe for a mod that didn't have much background with users...

That being said...I am likely obtaining a full throttle body with sensor today for $19 and would like to explore having the mod machined done either myself or by a machine shop...Is there anyone who has seen a "bored large throtle body plate"? Since the description is that it is an enlarged "plate" and not the body itself I wasn't sure which part was actually having the material removed from it...

Ok, I spoke with Spencer about this mod a while ago to figure out exactly what gets done.

Pretty much they just bored out your throttle body by 2mm (or something like that) and they cut a new plate for the butterfly. The new plate bolts on using the same hardware, just allows more airflow.
That is all that's to it.
All you need to do is find a place that can machine the plate and bore out your TB and you're good.
Should be WAY less than $200.

This is one of those mods that doesn't do much by itself (if anything at all), but when coupled with cams, headers, intake and exhaust will work nicely.
And even better if you send the ECM out for tuning.

Let me know if you are going to pursue this (even with the minimal gains by itself) since I'm interested in doing this as well.

I may have a local place that can handle doing this.
And they are Nissan Specific with their machining.
Let me know if you want me to follow up with them.

Please do follow with them on what the cost would be...I am going to pursue it--to cheap as far as the cost I am getting on the throttle body not to--Will post pics and info as I go along...

I'll see if I can talk to them this week about it.
They are MORE than capable of doing this since they build ridiculous 3.5 V6's.
Wanna throw a turbo on it at the same time? hehe
This is the place that will do it.

If I fell into a supercharger for cheap, this place would get it to work for me.

I'll post up any info I come up with.
He may have alternatives to suggest.

We have a 60mm throttle body already, right?

Not sure what the measurement is...I also may pick up an intake manifold as well...see if this place could port and polish that as well...

I think the process you may want to research is called extrude honing on the intake.
That will clean up all ports, etc.
I was told that self-porting on intakes and heads can really screw things up if you don't know what you're doing.
It is possible that you can actually make it worse instead of improving flow.

Oh...I have very little intention on doing the work myself...

Alrighty..
Just got off the phone with Andrew from Performance Motorsports (Sponsor of LINXC).
He said that we should skip the throttle body mod altogether.
For the money that it will cost in materials and work, he said that you'll only really pick up 5 horsepower IF coupled with Cams and headers.
He knew the SLR mods since he had most of them on his Frontier as well.

He said the majority of the power for the 3.3 is picked up by swapping out the Cams, installing Headers and getting the ECM tuned.

Porting out the heads and the intake manifold can disrupt airflow and fuel atomization if not done properly.

I suggest you buy a pair of cams from
www.thezstore.com
Stick with the Stage 1 cams to keep your power low in the rpm range. Stage 2 and 3 really won't help us offroad since we aren't going WOT.

Ummm...all I see is cams for old Zs...doesn't detail a 3.3 either...

AC also has them and a new, updated website: https://www.4x4parts.com/catalog/index. ... th=367_130

That's what you are ordering.
You are sending in your 3.3 cams, and they are regrinding them to the Stage I, II or III profile which are more aggressive.

I'm going with Stage I, part number 10-2020
Description:
Lift(In/Ex): .420/.420. Duration(In/Ex): 260/260.
for $169.95 plus shipping.
MUCH better than the $535 from AC.
After speaking with Andrew @ P.M., he said that we don't want stage 2 or 3 cams because it is unuseable power for us. WAY out of our RPM range.
Yes, you'll pick up 25+ horsepower but it will be at 6k rpms. lol

The 3.0 & 3.3 cams are the same. So you can use the performance parts from the 3.0 on the 3.3 for the most part.

Have seen that...

not sure I want my X down while I remove the cams, send them off, have them reground and then sent back...

It might be worth the cost to me to go through AC and get the brand new cams purpose made for the job...

When I tear my old heads apart, I'll have a spare set for cam cores. If you need. Just give me your old cams after you remove them from your truck.

I bought a reman. pair of heads that I'm sending the new cams out from, before reassembling them and putting them in my truck.
Zero down time. For less than half the cost of the AC cams.

And don't fool yourself, those cams from AC aren't "purpose made" for Xterras/Frontiers.
They are just 3.0/3.3 cams that they are charging a premium for. And the rpm range is a bit high for offroading.
SLR was the same way.
$535 for cams is ridiculous, especially for the gain.
If you're going that crazy, why not look into Isky custom grind cams, or Jim Wolfe cams.
Those are all new cams but $$$$.

I wanna do the cams and hopefully soon and these are the ones I'm going with.

JWT cams
http://www.jimwolftechnology.com/custom ... ?PartID=27

And JWT spring set.
http://www.jimwolftechnology.com/custom ... p?PartID=4

Gene,
That cam won't be good for offroad since the RPM band is really high.
Yes it will give you good horsepower, but it won't be useable when wheeling.
On the parkway at Wide Open Throttle is the only time you'll benefit from that cam.
And you will also have to shim the valve springs and do all sorts of other $$ things for them to work.

I thought the same way when looking for my cams, especially since the route that I'm taking, Stage III is the same price as Stage I.
But Stage III cams are from 3500rpms-7000rpms.
From idle to 3500rpms is pretty much unaffected.
In fact you'll probably lose whatever little low end torque we have to gain it higher in the rpm band.

Not worth it.

Before placing ANY orders for cams, I highly recommend speaking with the place about the rpm range you need additional power in.
They will tell you what cam profile will best suit your application.
Unfortunately this isn't a "Bigger is better" case.
I completely trust my engine builder with his cam choice.

He would not have me waste money on something that I wouldn't be happy with the results of.
Which was another reason why he told me NOT to bother with the throttle body boring and new plate. The benefits didn't compare with the cost.

If you want NISMO cams, he can order them.
And yes, they are expensive. lol