Anyone interested in a 87mm throttle body?

The LS2 90mm throttle body has been successfully run on the Nissan Titan for a few years now and i have a guy that is working on installing the GM 87mm on his 350Z for testing as i type this.

 

Can be useful if you have an intake manifold with an 87mm throat (or larger) and an intake tube with roughly an 87mm diamter. If neither of those things are present, it's going to largely be a giant waste of time unfortunately

 

How does the Titan take adv. of the 87mm. Uses a bigger MAF?

 

The Titan uses the stock 70mm intake neck and has proven nice gains with the LS2 90mm. I have been running the 90mm for 4 years and the throttle response is extreme. Gains are .1-.2 in the quarter mile.

 

Pics? And is it gonna be plug and play dbw?

 

87mm throttle body off the SS Trailblazer? Is this throttle body 87mm all the way thru? No taper? The inlet on a DE manifold can only be ported to about 75mm

 

Hello I'm from the Titan side of Nissan also. TitanSS and I are helping a friend with this project and was looking for some input. The owner will join later today.

 

We dont know what will be needed to make it work correctly yet.

We have made an adapter plate close to wat we used on the Titans. We are not porting the intake, as you stated it isnt big enough so it wanted be a direct bolt on.

I dont understand the first part of what your asking, but we are using a 90mm ls2 and ls7 on the titans now. As far as the MAF the only change in it was when we went to using a 4" coldair intake. That required our tuner to rewrite the MAF table to be able to adjust for the extra air being supplied to the VK56.

 

last time i checked on the titan forums, there wasnt much progress with the LS TB's (granted that was a while ago) and am currently makin gmy way thru this thread http://www.titantalk.com/forums/tita...ness-tb-2.html


What are you doing to make them compatible with the stock DBW setup? My ems control any DBW but its really though to dial it in good as stock. I imagine there are alot of compromises with the titan 90mm swap as well.

 

Your in the rite thread, as for as the DBW setup it is working good.

 

How is the idle?


I beleive that was the biggest issues.



Once the new full ecu haltech is out, it has DBW control. IT SHOULD be able to fully tune the DBW system , so a LS TB shouldn't really be a issue anymore. Will def require tuning tho.

 

The idle on the Titan with the 90mm is just like stock once the idle air learn has been performed.

Testing the 87 should be under way now.

 

ohhhh yeah, ok sry thats V8 to V8.


The LS TB to a VQ35 will be different?



So if it idles fine , is the tuning needed because of the increased airflow, or because of a issue?

 

I've got a Mine's throttle body on my Z.
To be honest,don't really know the mm diameter.
Maybe,3mm over stock?
It is visually larger than the OEM T body.
In addition,inner surfaces and all parts of the veturi
are highly polished to almost a gloss.
The performance gain is excellent.

 

^where'd you get from?

 

+1 More info.



While were at it is the stock V8 titan 70MM just like the VQ????? it looked like it from the pics ive seen.


the largest DBW NISSAN tb i know if is the 09 Maxima TB, its what im currently using. its 75mm Works just fine with stock ecu.

 

Both the Titan and Z's throttle body measure 70.08mm ID.

 

Dang, nissan really dropped the ball on that one huh.


Funny the 09 Maxima has a bigger TB then a V8 titan.

 

How in the world is that dropping the ball? lol

 

More info on mines tb