Wiring up the 2k9 is simple and documented in this thread. I am pretty sure I posted up the pic on page 1. The 5mm gain is rather small and the cost isn't worth it imo. From my experience finding the 2k9 tb and wiring plug sperate from the whoel engine harness isn't the easiest. Granted you can solder to the connection points and fill the plug hole most people get scurred of that stuff.

If you were getting a custom IM built then going with it would be a no brainer, otherwise not worth it.

A 90 or 100mm DBW TB with no codes or driveability issues would be nice...

 

...and bump.

 

and nothing will ever happen with this like every other TB thread. Which is a real shame as there are proven gains with the larger TB.

 

Why do you think a VQ35DE would need a 90mm throttle body?

 

because SG proved it provided great gains...

also a certain altima is running around NY with an ls2 tb and a 4'' intake over 300whp stock cams.

 

im gonna see if street solutions can make their intake with a 90mm ls2 flange. i really like their intake, with the velocity stacks and port matched runners. i can make my own 4" intake if I have to, or we can do a group buy and get someone to make them for us perhaps... im an ee... i could probably figure all this wiring stuff out, but im super busy at the moment. how did the altima guy get it to work?

 

http://www.hitachi-automotive-la.us/...et_Catalog.pdf

 

not on stock cams.

older DE can do 300 with aftermarket cams.


older de with cams and 4" should be 310ish depending.





09 max with stock cams w4" is 300. with cams_____ unknown as of now

 

The 06-10 M45 and FX45 both have larger throttle bodies just like the 09 Maxima, although the part numbers are different.

 

what size?

 

same size as the 09 Maxima unit

75mm outlet 80mm inlet

 

That is arguable. They gained 25whp removing the top 1/2 of the stock IM. Yes they had aggressive cams at that point. IMO it would still help w/o cams. Maybe not 25whp but you would get something.

You proved the 4'' intake has great gains w/ a tune.

It just makes sense that if you could greatly improve the airflow from the TB to the valves you would get great gains as well and the SG top popping reinforces that. The 1st step is a larger TB that matches the size of the 4'' intake right?

What we need imo is a log style IM with ls2 tb and internal VSs with short runners.



edit: as I have said before you really need to cam that bish

 

I was referring to that altima, hes doing 300+ hp with aftermarket cams



Yeah even with stock cams there should be some gains, but for all the work and $ on a stock cam motor hardly no one will want to spend that. I beleive the older DE motors love gobs and gobs of air, thats why a gutted manifold (FWD) has huge gains. But on the HR headed motor the gutted manifold dont do much at all.


IMO a larger intake will help most everyone out n/a that is. That's the most affordable and easy to do, ofcourse requires tuning, but that's a giving.


I thought about trying that test on my car, but being FWD it would be very dangerous to do on the dyno.

 

Every dyno I have seen of the street solutions intake manifold has shown a loss in horse power. I have a guy that is going to make a plate to put the larger 09 maxima tb on the G35 stock manifold. I'm going to test that out before I see about going larger

 

were they just bolting it on and dynoing or actually tuning on it. Even the kinetix velocity had gains above 6000 and nothing everywhere else. what tb did they use on the street solutions intake?

 

Cosworth is very similar.

That being said look what ITBs do for this engine.

What we need is a proper designed IM imo.

 

bolting it on and tuning it. I dynoed it myself against a stock manifold with space. using the oem TB. CIN motorsports tried what they knew, but it never made any gains.

 

We need an HR style manifold with twin TBs, that should wake it up!

 

We need a log style IM with inter Velocity Stacks with a nice large TB if you ask me.

Carbotron will sell you one like SG for $2000ish

 

Why don't don't we recruit Tony from motordyne to come up with something.. Obviously there is interest and we all know the R/d M.D does..