A v6 comes with a bigger tb then a v8.

 

Whats up guys, im the owner of the test Z for the 87mm LS2 throttle body conversion. I have custom made the adapter plate to mount the throttle body to my black Crawford intake manifold. I will attempt the install tomorrow "all that is left is to figure out the wiring" so i can post up results. Stop bashing the idea! it has been dyno tested on the titan with 12hp gain, i understand that it is a v8 but im hoping to have close to the same results with the 3.5 considering the stock TBs are identical, it is just project with no guarentees. i will have it dyno tested on my Z if we can get to work properly. again... its just a project we have decited to take on. so stop saying how it isnt going to work. see the pics to see what i have so far...

 

Cool glad you posted!


What EMS do you have?



I'm planning on a Custom I/M with a 90mm tb on my VQ35, so im interested in seeing how this plays out.

 

No tuning is required on the Titan, we will have to see on the Z, But if you have Uprev it can be taken care of easily.

 

there is absolutely no reason why this wont work.

I have no idea why Relentless's throws codes and does not work well. Just seems like you are bolting it directly on. Are you drilling holes in the butterfly? What specifically are you changing in the rom? Most cars that would be interested are 100% MAP controlled, so no MAF. Cruise and traction control still work 100%?

Do you have sufficient clearance to mount that TB between the manifold neck and the fire wall? Should be able to use LS7 TB if you rotated the bolt holes. Thats what I'd be interested in.

 

No way to mount the LS7 with out cutting a hole in the hood for clearance. The 87 is a tight fit.

The relentless control box is over engineered, way to much electronic gizmos in there control box.

 

What makes the LS7 tb better? 90MM? other then that what would be the reason to use ls7?

 

why would relentless need a control box when you guys arent using anything?

Or was relentless solely trying to stay away from an Uprev solution?

 

Its my understanding that the LS7 has a stronger actautor motor. I do know that the LS7 uses metal gears.

 

you would just mount the LS7 tb like this

 

The Nissan ecu is very temper mental when it comes to voltage.

 

it doesnt look like you guys didnt anything special to address that. So is that what is being modified in the ROM?

 

A little off topic. Would cutting the oem plenums " neck" out and welding in a 4" tube with a 90mm flange optimize the use of the 90mm tb. It seams like even if you tym a 4" intake to a 87 or 90 mm tb the oem plenum is a bottle neck.

 

that would be the best case scenario, or get an intake like the kinetix with a 90mm flange on it.

 

Relentless tried to copy the PGM, the original 90mm conversion, but Failed.

 

well the mounting was sucessful. its a TIGHT fit! still working on the wiring. have a more little to figure out. some pics of the mount. and a little something extra i added to it.

any imput?

 

What is the opening diameter of the Kinetix manifold? Is the throttle body 87mm all the way thru?

 

looks way tight. how are you going to fit a 3.5" charge pipe between the plenum and the firewall?

I guess you could use a large piece of 45* silicone hose.

This thread is still pretty cryptic. You say the ECU is sensitive to TB voltages. Yet you have no electronics box.

Since the TB adapter and wiring splice are not very expensive, i assume the bulk of the 300$ cost is coming from the UPrev ROM settings you supply to adapt the GM tb to nissan volatges?

 

GM and Nissan voltages should be the same. hitachi builds Nissan and GM throttle bodies

 

The voltage has to be tweaked they are close but not the same.

The whole kit for the Titan is $300 shipped. Start pricing everything and talking to machine shops and all the time spent polishing, cutting gaskets, ss bolts, etc you'll get an idea why its $300.