Does any body know if there is a place you can have an Individual Throttle Bodies custom made for the Maximas. I've seen and heard the ones made for the Hondas and Toyota 4 cylinders and have recently heard the motor of an Acura NSX with these installed and it was sweet plus talk about response and top end horsepower but it might just kill too much of the low end power for the Maximas.

Thanks Eric

 

Something tells me that it would be difficult with the way our heads and lower intake manifold are setup. You would ideally want to leave the stock lower intake manifold in so as not to mess with the fuel injectors and what not, but to keep the stock lower intake manifold would make ITB's difficult due to how close the ports are smushed together.

 

talk to stephen max about getting an adapted pathfinder throttle body. he can make a nice set for you.

 

You have no idea what individual throttlebodies are, do you?

 

Pathy TB's for each cyl ..

No he doesn't.

 

to help you guy out what I'm talking about here is a picture of the TODA racing ITB for the Acura NSX



And here is the one for the Honda B16/ B18 series engines



And Tatanko if you look closely the injectors are also relocated and the need for the lower intake manifold is eliminated. If only there's a place that can make adaptor that will bolt it up to our engines. But with this said I think there might be some hood clearance problems that need to be factored in when designing the adaptor. Maybe a longer runner and the ITB located where the stock Intake manifold is now.

 

i heard a B20 power EK9 with individual TBs and that thing sounds like a beast, throttle response is crazy and top end power is so damn nice.

 

Price = $9000............

 

Yeah I suppose since you're already custom installing ITB's, you might as well relocate the fuel injectors/rail while you're at it. However, if you're ripping out both the upper and lower intake manifolds, I don't see hood clearance being an issue. That opens up a whole lot of room for the ITB's and adapter plate to sit. Basically they would have the whole valley between the cylinder banks as well as all the room the upper intake manifold used to take up.

 

Race VQ30

 

What about the V10 that the new M5 and M6 use?

Holy crap

 

I believe the M5 intake manifold features this. But it's covered under a upper cover.

 

You could mount the e-gas module to that fairly easily...wonder how much that unit runs. Also, that looks like a vq35 to me.

 

Beat you to it

 

But who got a pic first.

 

But who gave a useful link first?

TWM Induction

TWM Induction is a company that makes the throttlebodies and they say they'll do custom applications in addition to their ready-made popular stuff.

 

There are 2 intake plenums that those feed from (one per bank). That engine = teh sex

 

They also make stub stacks for the V8 powered M5s that are supposed to enhance high rpm operation.

 

yup.......... The E30 M3 had ITBs also.

 

It's a VQ30, it looks like VQ35 because of the plastic vavle covers, but its not. Most parts are custom made.

 

Buy it yet?

 

Figures....NPM listed the picture as 350Z in the properties

 

Looks like they are still using the stock lower intake manifold here!!!

 

Yup. The timing chain cover gives it away if nothing else.

 

http://www.nissanperformancemag.com/july03/goughary/

 

Nope. Want to donate to the fund?

 

oh those, sorry, i was lost.

that's too much of a mod isn't it? man, that shiznit is crazy.

i thought twin throttle body on each side of the manifold was a good idea already, but a throttle for each cynlinder? hm, i'm skeptical to think that it's possible for our cars.

 

GT2 budget. Figures.

 

Why not Vq35 then?

 

Do you mean this?

 

No, but I like where you are going

 

If you look closely, you can see it has the VQ35 cam brackets. They have removed the VTC solenoids.

It looks to me like it is a VQ35 with a VQ30 timing cover. But it could be that it is a VQ30 and they used the VQ35 cam brackets so they could also use the VQ35 valve covers.

 

350EVO is developing an ITB setup for the VQ35... supposed to be complete around Christmas.

http://www.my350z.com/forum/showthread.php?t=112548

 

Higher revs? Maximum displacement restriction before being bumped up to another class? The JUN 350Z used for a top-speed competition used a VQ30DE(T) as well so who knows.

 

This is what I'm talking about. Maybe I'll give those guys developing the ITB for the 350z a call if they can make one for me.....or maybe do a 3.5 swap and wait for them to develop this for the 350Z and modify it to work on a Maxima..Hmmmmmm It's gonna be some major bucks...

 

What kind of engine management are you going to use with that. Can't use the oem ecu, that's for sure (unless there is a plenum that goes around all those ITBs).

 

As sexy as those look, these are mostly used for high reving race engines. ie.. no real regard to low rpm torque values. As the big, short venturis imply. Not quite sure how you want to filter that setup. Also plan on spending $3,000+ for it?

 

I'm still doing some research into this... since this will eliminate the EGR and IACV.. you're are definitely correct in some type of stand alone management to get the engine to idle.

A friend also stated to try using short venturis and a custom sheetmetal intake manifold so I can still use some type of MAF sensor.

The more I look into these the more things are needed to get the car running right.

 

Hi ! EZEMaxima
Actually i doing alot of research on individual throttle body set-up on Maxima before,and i discuss with my tuner its ok to using the stock ECU to control the idle but you'll have problem during switch on A/C the idle will drop and following by engine stop .
My tuner who are expert custom made throttle body and tuning Microtech ECU,suggest me to install individual throttle body with the powerful fuction stay alone ECU like Microtech , Motec , Haltech etc... to have a proper idle , correct A/F ratio and maximum engine performance get huge gain in hp / tq (this will cost me a bomb)

Useful link
http://www.jenvey.com/Tech_QA.htm

 

That's what I was thinking.

How would you connect a MAF to this???