It surprised me too. When I went from LRMAF to 3", I didn't need to change anything. It might be because I was still using 3" tubing aside from the MAF.

But, last time I bolted the MAF right to the TB and a filter right on the MAF. Now it's obviously longer but the MAF is in the same place. Last time was before the 3" exhaust too.

It could be a number of things, but yeah weird. I was @ about -12-14%, and I had to be at +14-16% for a rough street tune. So that's a total of +30%.

Aside from the new intake, new dyno plans are for adding the elbow to plenum spacer after modifying it and if I decide to get ambitious, do some further SSIM'ing.

 

Any new numbers and post pics of that SSIM we all know you bought : )

 

+1

I wanna see that awesome manifold put to use!

 

It's shown up, but been busy lately. I would say in the next few weeks or so be expecting a dyno.

 

Interested to see what it makes on your car.

I'll be making an intake manifold very similar to this design in a couple months.
I love working with and welding aluminum, so why not make a new plenum. lol

 

Makes sense. I think it's about time yo bought some cheap semi-equal length headers too.

 

 

I'm gonna get some of the altima ebay ones. Can't beat the price ($100) even if they are ****ty quality. lol
I want to make my own stepped headers, but the material would be expensive. I can fab and weld pretty well, but material costs can be pretty crazy sometimes.
I can get some scrap aluminum, so making the manifold will be cheap.

So, decent headers, a new manifold, and a safc are in the works. Hope to make around 260-270whp.

Gotta fix the diff in the trans first though. Perfect time to throw in the sentra LSD.

Goal is mid 12s on the motor.

 

Dude, you're going be the 6th gen King. Mid 12's should happen easily with all that.

ohai!!

 

my current setup





^
Frankenstein DEK vacuum solution for no need of nipples in the pipe.

That AEM filter is great for 5th gen since it has a whole to plug the IAT sensor in

 

I had a similar set-up. Didn't like it for some weird reason. It netted 242, but this was pre-3" exhaust and pre- spacers.

 

This thread reminded me I need to make a 3.5 inch intake for our 3.5 and need to find a MAF.

 

Good things my brotha.

I was looking forward to dynoing the 3.5" on the SSIM, but since sparks already proved, 3.5" > 3.0", I'm just going to dyno the SSSIM + 3.5".


If those results are high with good under area gains, I'll consider cams. If they're not so impressive, I'll leave it as is and buy a 370z.

 

That's what I'm shooting for.

I just want to be consistently in the 12s so I can be competitive in the all motor sport class at Import Face Off.

I would love to beat the honda guys in my maxima.

 

Well I think you'd see bigger benefit from cams with the custom SSIM and 3.5" intake vs a stock IM car. But 370z with a couple of key boltons > maxima with that IM and cams. lol

 

I wonder where you got that idea!?

It's definitely the way to go, though. I gained power on the dyno going from a super short ram to about the same length as yours.

 

It's an awesome idea. I needed to add a lot of fuel as you saw previously in this thread.

 

But maxima with bore and sleeves to make 3.8L, 11.0:1 CR and cams, headers, SSIM, 3.5" tubing and LRMAF > AND CHEAPER than new 370z.


Hey NMEX...I see you got a breather filter on the front valve cover...did you put a breather on the rear cover as well and plug the IM connection?? Will this cause damage to the engine or any check engine light to come on? Did you get a chance to dyno the new 3.5" tubing with the LRMAF yet?

 

No, didn't do a breather on the rear VC, just a ghetto catch can. Jime has one on each IIRC, and his is fine.

Haven't dyno'd with the 3,5: intake or SSSIM. When things slow down, that's the plan ... (SSSIM + 3.5", not going to do in betweens).

 

If you leave the rear VC connected to the IM when putting a filter on the front VC, then the front is a vacuum leak when the PCV valve is open. You either need to disconnect one or both. I had random lean idle problems for almost a year before I figured this out...

I have a catch can on each and they both vent to atmosphere. You need to drill out the PCV valve and front VC vent for best effect.

Easiest solution of course is just to put a catch can on the rear one (where the PCV is) and leave it all hooked up.

Did you install it yet?

 

So disconnect front VC and put breather filter on........then disconnect rear VC and put breather filter on and plug the IM connection with some sort of a vaccum cap??

 

There are tons of options for vacuum caps from autozone rubber to silicone ones you can order online.

If you go this route, you really need to drill out the PCV valve at the very least.

 

While we are talking about the vacuum situation,

read through this guys and let me know what you think!

http://www.sr20-forum.com/naturally-...d-edition.html