257/245 ish
#41
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.
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.
Last edited by NmexMAX; 07-06-2011 at 04:10 PM.
#45
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
#48
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.
#49
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.
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.
Originally Posted by nismology
#53
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.
#54
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.
#55
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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.
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.
#58
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?
#59
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?
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).
#60
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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?
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?
#61
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.
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.
#62
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If you go this route, you really need to drill out the PCV valve at the very least.
#63
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
read through this guys and let me know what you think!
http://www.sr20-forum.com/naturally-...d-edition.html
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