6th Generation Maxima (2004-2008) Discussion of the 6th generation Maxima. Come see what others are saying.

SSMI MOD??

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Old 01-28-2008, 09:25 AM
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SSMI MOD??

It worth it and why. Some have said they lose low end power but pick up more up top. Just looking for some advice. Thank you
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Old 01-28-2008, 09:29 AM
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http://forums.maxima.org/showthread....729&highlight=
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Old 01-28-2008, 10:49 AM
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Good stuff^

I've been prepared for most of what has been stated, but will compensate for it
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Old 01-28-2008, 11:17 AM
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Is it as easy as everone states? Just remove it and get a block of plate? Yes I'm mechanicly inclinde worked on tons of cars just neer touch a VQ.
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Old 01-28-2008, 05:13 PM
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If you understand what's actually being done, then no it's easy if you have access to certain tools and such. Once again, you must optimize your set-up to the best of its potential.

Throwing $$ & mods to a car really don't do much unless you make everything work well together.

Maybe I'm preaching to the chior, but I still think it's a valid point here.
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Old 01-28-2008, 05:55 PM
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I think it is worth mod. My friend just performed it and he said it wasnt that bad.
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Old 01-29-2008, 05:59 AM
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Originally Posted by NmexMAX
If you understand what's actually being done, then no it's easy if you have access to certain tools and such. Once again, you must optimize your set-up to the best of its potential.

Throwing $$ & mods to a car really don't do much unless you make everything work well together.

Maybe I'm preaching to the chior, but I still think it's a valid point here.
I have my own tools as I was a tech some years back before I got into banking. I did all the work to my EVO and my eclipse, heavy modding cams and turbo upgrades fuel injectors and stuff. I did my 350z also but was only a plenum spacer, intake and exhaust, so I do know my way around a enigine just never did this mod before to any car. Thanx man.
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Old 01-29-2008, 06:12 AM
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Then hop to it grasshopper.
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Old 01-29-2008, 07:28 AM
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I will. I'm gonna take a day or so of work in a couple of weeks and will do it. I will keep you guys posted. Thanx for the info.
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Old 01-29-2008, 07:56 AM
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Originally Posted by anm6
"worked on tons of cars just neer touch a VQ."

"I did my 350z also but was only a plenum spacer, intake and exhaust"
Huh? I confuse. 350Z = VQ
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Old 01-29-2008, 08:31 AM
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Originally Posted by QwikKota
Huh? I confuse. 350Z = VQ
Yea I Know it's a VQ but a plenum spacer is like doing a carb spacer pretty cut and dry. Yhe SSIM mod I have never done or have anything to compare it to.
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Old 01-31-2008, 07:58 AM
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Originally Posted by anm6
Yea I Know it's a VQ but a plenum spacer is like doing a carb spacer pretty cut and dry. Yhe SSIM mod I have never done or have anything to compare it to.
Hmm, I guess I'd relate a TB spacer to a Carb spacer. Manifolds that are dry are so easy compared to one with coolant and oil lines going thru them. They say if you can work on an SHO you can pretty much work on anything. Boy was I glad that was my first car. (Insert sarcasm) Massive manifold with more coolant/oil/vacuum lines than a big rig.
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Old 01-31-2008, 08:19 AM
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NmexMax you keep saying to optimize performance but wouldn't just a simple AFC tune help out with the SSIM also...I don't think you would need to get an extended rev limiter to see some gains....my car definitely pulled harder up top with the SSIM however I started throwing codes b/c I did something wrong so I will probably buy one of the SSIM's from the guy who is selling them....
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Old 01-31-2008, 10:05 AM
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Originally Posted by pimpin02max
NmexMax you keep saying to optimize performance but wouldn't just a simple AFC tune help out with the SSIM also...
That is one way of optimizing, yes.
Originally Posted by pimpin02max
I don't think you would need to get an extended rev limiter to see some gains.....
I never said it was needed, but in order take full advantage it is.
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Old 01-31-2008, 11:48 AM
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Originally Posted by QwikKota
Hmm, I guess I'd relate a TB spacer to a Carb spacer. Manifolds that are dry are so easy compared to one with coolant and oil lines going thru them. They say if you can work on an SHO you can pretty much work on anything. Boy was I glad that was my first car. (Insert sarcasm) Massive manifold with more coolant/oil/vacuum lines than a big rig.
I know what you mean but if you can work on I SHO you can do anything. I still can't believe they crammed that motor in there, You have like 0 room to work, I did noy like those either. Other job I hated was the dreaded rear valve cover gasket on V'6s. Taking the intake manifold off to do it sux. The head gasket was even worse. I never wanted to do those.. LOL.
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Old 01-31-2008, 11:57 AM
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Originally Posted by anm6
Taking the intake manifold off
Mine comes off in less than 5 minutes
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Old 01-31-2008, 12:09 PM
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Originally Posted by pimpin02max
I started throwing codes b/c I did something wrong so I will probably buy one of the SSIM's from the guy who is selling them....
What could you have done wrong that was throwing codes and needs you to buy a new IM?

Originally Posted by pimpin02max
NmexMax you keep saying to optimize performance but wouldn't just a simple AFC tune help out with the SSIM also...I don't think you would need to get an extended rev limiter to see some gains....my car definitely pulled harder up top with the SSIM however I started throwing codes b/c I did something wrong so I will probably buy one of the SSIM's from the guy who is selling them....
Try to relate it to a HUGE turbo...it spools up at higher RPM, so in a way this is kinda sorta, not really the same, but you get my drift!

Originally Posted by NmexMAX
Mine comes off in less than 5 minutes
har har har!

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Old 01-31-2008, 06:14 PM
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Originally Posted by !PrjctMax!
What could you have done wrong that was throwing codes and needs you to buy a new IM?
Background:
http://forums.maxima.org/showthread....148&highlight=
http://forums.maxima.org/showthread....729&highlight=


Originally Posted by !PrjctMax!
Try to relate it to a HUGE turbo...it spools up at higher RPM, so in a way this is kinda sorta, not really the same, but you get my drift!
Good observation, but still not the same. I used to have this w/ my 4th gen, tap the limiter too quickly, but in this case it's adding more area under the curve.


Originally Posted by !PrjctMax!
har har har!

Think I'll get to my IMS this weekend?
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Old 01-31-2008, 07:11 PM
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Originally Posted by !PrjctMax!
What could you have done wrong that was throwing codes and needs you to buy a new IM?
Well when I put my manifold on I was throwing the P0301 code which means misfire in cylinder 1....so I obviosly screwed something up whenever I did the mod so I am going to buy one of the SSIM's that that one guy is making KRZZ350 or something I think with his manifold the car will be fine....also I am probably going to hold off on my raised rev-limit I think there will still be some good gains up top without it and just a tune....
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Old 01-31-2008, 08:38 PM
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Manny-You best be doing the IMS! Make that thing cooler ftw!

pimpin02max-hmmm, that's interesting...haven't read all of that thread, but did you already try replacing the plugs/coil?
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Old 02-01-2008, 09:11 AM
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Yep I did....but also I have been driving now with the stock manifold for a good 5 months and no SES
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Old 02-01-2008, 09:34 AM
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You're the only one that has ever had an SES as a result of this manifold. In my book, that's user error.
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Old 02-01-2008, 09:39 AM
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Originally Posted by anm6
I know what you mean but if you can work on I SHO you can do anything. I still can't believe they crammed that motor in there, You have like 0 room to work, I did noy like those either. Other job I hated was the dreaded rear valve cover gasket on V'6s. Taking the intake manifold off to do it sux. The head gasket was even worse. I never wanted to do those.. LOL.
You ain't lyin. I had to literally put my feet on the block and rest my butt on the radiator core to lower that head on. It is really heavy since its a big casting and the manifold needs to be pre-attached. Yuck. It took me a while to put the heads on but only 30 mins to rip them out once the engine went kaput. I cut all the hoses and cables and said my goodbye's lol. Ported and polished heads flowed some crazy air.
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Old 02-02-2008, 11:19 AM
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It be smart to get a baseline dyno first.
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Old 02-02-2008, 07:01 PM
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Originally Posted by NmexMAX
It be smart to get a baseline dyno first.
Don't forget run-files!

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