Intake & Exhaust Questions and info regarding various aftermatket exhaust systems for the G35 (Headers,Y-Pipes, and Cat-Back Systems)

Kinetix SSV vs. Motordyne Plenum

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Old Apr 16, 2007 | 12:42 PM
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Kinetix SSV vs. Motordyne Plenum

Im stuck in between decisions im not sure which way to go on this either 1 part and a sexy inside or 2 parts and gradually build up.

Opionions which would everyone rather go with and why?

http://kinetixracing.com/index.asp?P...ProdID=12&HS=1

which i can get shipped for 800$

Or the MREV and Iso Thermal spacer which i know everyone on this forum is very familar with.
In which i can get for about 706$ plus shipping from two diff. companys.
 
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Old Apr 16, 2007 | 12:47 PM
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Do you want to gain power or lose power?

SSV is only for FI purposes and looks. If you are NA and have a SSV you are killing HP without a tune.

I personally wouldn't recommend going with MREV. I don't really see true advantages of it. The Iso Thermal Spacer probably won't produce greater numbers steadily to the regular 1/2", but inclement weather may produce a difference.

SSV vs. Spacer for looks... SSV wins.

SSV vs. Spacer for performance NA & non-tuned... Spacer wins

Have you looked into the Kinetix V5 upper plenum? They are great
 
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Old Apr 16, 2007 | 12:55 PM
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Originally Posted by filanj
Do you want to gain power or lose power?

SSV is only for FI purposes and looks. If you are NA and have a SSV you are killing HP without a tune.

I personally wouldn't recommend going with MREV. I don't really see true advantages of it. The Iso Thermal Spacer probably won't produce greater numbers steadily to the regular 1/2", but inclement weather may produce a difference.

SSV vs. Spacer for looks... SSV wins.

SSV vs. Spacer for performance NA & non-tuned... Spacer wins

Have you looked into the Kinetix V5 upper plenum? They are great

ive read about the v+ but not v5
also how good would say the MREV+SPACER+UPPER PLENUM be?
 
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Old Apr 16, 2007 | 01:01 PM
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I have heard from a lot of people that the SSV makes you lose power,.. but someone was saying that this might be because it allows for so much more air that your ECU doesnt really know what to do and you run lean and lose the hp. I am actually really thinking about the SSV but with a tuboXS ECU mod so that I can boost up the fuel and get all the power out of it.
 
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Old Apr 16, 2007 | 01:06 PM
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Originally Posted by battlebuddyP
ive read about the v+ but not v5
also how good would say the MREV+SPACER+UPPER PLENUM be?
A spacer and MREV2 are a good and very popular mod combination, especially if you have the revup engine. An upper plenum (APS, Crawford, or Kinetix) with the MREV2 is good too.

I think most people would agree there is no additional gain by using an upper plenum and a spacer. Use one or the other, with or without the MREV2.
 
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Old Apr 16, 2007 | 01:12 PM
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Originally Posted by mxkon
I have heard from a lot of people that the SSV makes you lose power,.. but someone was saying that this might be because it allows for so much more air that your ECU doesnt really know what to do and you run lean and lose the hp. I am actually really thinking about the SSV but with a tuboXS ECU mod so that I can boost up the fuel and get all the power out of it.
Sounds like a good idea, but before you spend all this money I suggest you check around and see if anyone else has tried this and gotten some good gains verifed on a dyno.
I'm interested to see if this approach works. You may also want to wait and look into the Cosworth plenum which is supposed to be due out soon.
 
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Old Apr 16, 2007 | 01:18 PM
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My opinion........

I'd stay with the MotorDyne spacer even if I were going FI....If I wanted to
really go nuts I'd go with a Cosworth setup......yea, the whole damn thing.
 
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Old Apr 16, 2007 | 01:19 PM
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hey guys, since you're talking about plenums already, would it increase the gas mileage providing the driver would use the same driving technique?
 
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Old Apr 16, 2007 | 01:31 PM
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Originally Posted by mxkon
I have heard from a lot of people that the SSV makes you lose power,.. but someone was saying that this might be because it allows for so much more air that your ECU doesnt really know what to do and you run lean and lose the hp. I am actually really thinking about the SSV but with a tuboXS ECU mod so that I can boost up the fuel and get all the power out of it.
Running lean almost always leads to a gain in power, but also leads to detonation if you cross over to unsafe levels. Its been theorized that the SSV has the potential to flow more air than stock, but does so in an uneven manner, and at low velocity levels when NA. When FI, you are really just trying to cram as much air as possible, with flow dynamics not as important, which is why its possible it makes power FI
 
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Old Apr 16, 2007 | 01:47 PM
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Originally Posted by mxkon
I have heard from a lot of people that the SSV makes you lose power,.. but someone was saying that this might be because it allows for so much more air that your ECU doesnt really know what to do and you run lean and lose the hp. I am actually really thinking about the SSV but with a tuboXS ECU mod so that I can boost up the fuel and get all the power out of it.
Yeah, you will need a tune to make power with the ssv or you need to bo FI (which you will need a tune for anyways). It's a great peice, but has gotten a lot of flack from guys here who just slapped it on and expected instantaneous gains.
 
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Old Apr 16, 2007 | 01:49 PM
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Cool. So has anyone chimed in with verifiable proof for gains with a na application + tune?

Originally Posted by b00stedjustin
Yeah, you will need a tune to make power with the ssv or you need to bo FI (which you will need a tune for anyways). It's a great peice, but has gotten a lot of flack from guys here who just slapped it on and expected instantaneous gains.
 
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Old Apr 16, 2007 | 06:34 PM
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Indeed,. anyone N/A with a good tune and some nice #'s,... anyone,.. anyone?
 
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Old Apr 16, 2007 | 09:14 PM
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I researched the SSV when it came out... looks very cool and I was real interested... From the dyno's I saw and the people I talked to it was not in my best interest performance wise (I'll leave it at that)... MD spacers have shown good gains in many/most instances, as have some after market plenums.

For me, from my experience and from what I have seen from others (first hand and in threads) the MD spacer is the best bang for the buck when it comes to modding plenum.
 
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Old Apr 16, 2007 | 09:18 PM
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Originally Posted by redlude97
Running lean almost always leads to a gain in power, but also leads to detonation if you cross over to unsafe levels. Its been theorized that the SSV has the potential to flow more air than stock, but does so in an uneven manner, and at low velocity levels when NA. When FI, you are really just trying to cram as much air as possible, with flow dynamics not as important, which is why its possible it makes power FI
hmmmm, my car basically de-tuned itself when I had HFC installed...ran a bit lean and the car was gutless. After ECU tune it pulls real strong. Not sure if this is the norm, but running lean definitely did not lead to any gains for me.
 
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