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Kinetix V+ vs. Motordyne 5/16" vs. Motordyne 1/2"

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Old Oct 11, 2007 | 09:04 PM
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Default Kinetix V+ vs. Motordyne 5/16" vs. Motordyne 1/2"

Between Kinetix V+, Motordyne 5/16", and Motordyne 1/2"; which one is known as the best improvement?

I searched and found out having both Kinetix V+ and any kind of plenum spacer is stupid. So I guess the outcome is simular between them? (Simular inside air volume, power increase, sounds, etc)

I also found out that 1/2" does not clear the stock strut bar. Can it clear my JIC Magic CF Strut Bar? Or do I need a strut bar spacer? Where do I get one? And does Kinetix V+ clear the stock strut bar?

Thanks and sorry for mass questions. I just added everything I couldn't find from searches in one post.
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Old Oct 11, 2007 | 09:12 PM
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actually from what i've heard the AAM Angled Plenum spacer is the best. or you could always do what the guy who owned my car before me did. check out this intake.
Attached Thumbnails Kinetix V+ vs. Motordyne 5/16" vs. Motordyne 1/2"-upper-mod.jpg   Kinetix V+ vs. Motordyne 5/16" vs. Motordyne 1/2"-upper-intake-ground.jpg  
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Old Oct 11, 2007 | 09:48 PM
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Originally Posted by XenoJC
I searched and found out having both Kinetix V+ and any kind of plenum spacer is stupid.
Its not stupid, it simple may not be beneficial.

Upper plenum vs spacer? Check the dyno charts at motordyne.com.

Replace the OEM strut brace with one that fits in front of the plenum not over the top.
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Old Oct 11, 2007 | 10:36 PM
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Depends on your car , is it a rev up or not . If its a non revup car you want a Kinetic or angled spacer . If its a revup , the 5/16 or 1/2 inch one will be fine. My stock strut bar clears the Kinetic on my car.
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Old Oct 11, 2007 | 11:41 PM
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Originally Posted by terrasmak
Depends on your car , is it a rev up or not . If its a non revup car you want a Kinetic or angled spacer . If its a revup , the 5/16 or 1/2 inch one will be fine. My stock strut bar clears the Kinetic on my car.
thanks for the answers everybody!

i have a 04(.5) Roadster...so non-revup

Last edited by XenoJC; Oct 11, 2007 at 11:52 PM.
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Old Oct 11, 2007 | 11:50 PM
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Originally Posted by davidv
Its not stupid, it simple may not be beneficial.

Upper plenum vs spacer? Check the dyno charts at motordyne.com.

Replace the OEM strut brace with one that fits in front of the plenum not over the top.
Thanks, that's what I meant. Not beneficial.

But I thought both Kinetix V+ and spacer increases the upper plenum air volume, did I get that wrong too?
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Old Oct 12, 2007 | 06:41 AM
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It does increase the volume, but by too much. There is a fine line between just right and too much. If you want the aftermarket show look, then get the V+. If you want the best HP gains get the 1/2" I'm not sure if your aftermarket strut bar will work, but any washer can be used as a spacer to clear another cm or two. Personally, i would get the 5/16 ISO kit and call it a day. HP difference is minimal and probably not noticeable. Its has proven gains time and time again, and also complies with OEM parts. Good luck with your decision.
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Old Oct 12, 2007 | 11:00 AM
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Ive never seen dyno charts of the Kentix plenium, it wasnt included in that plenium shoot out. Its gives comparable gains to the 5/16 and 1/2 spacers, even though its costs a lot more?
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Old Oct 12, 2007 | 11:14 AM
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Originally Posted by ssnake86
Ive never seen dyno charts of the Kentix plenium, it wasnt included in that plenium shoot out. Its gives comparable gains to the 5/16 and 1/2 spacers, even though its costs a lot more?
Not true. The Kinetix plenum is the “K” plenum.
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Old Oct 12, 2007 | 11:24 AM
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Originally Posted by davidv
Not true. The Kinetix plenum is the “K” plenum.

der, Im retarded. Dont know why I didnt see the K. I'm suprised it performs so much worse compared to the spacers. This is the same plenium that looks all crazy with like 4 pipes going down on the right side? My buddy almost got that plenium and was telling it adds like 30-40 hp...
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Old Oct 12, 2007 | 11:46 AM
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As far as I'm concerned, anything with the Kinetix brand name is junk. The spacers make more power anyway.
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Old Oct 12, 2007 | 11:48 AM
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Originally Posted by ssnake86
This is the same plenium that looks all crazy with like 4 pipes going down on the right side? My buddy almost got that plenium and was telling it adds like 30-40 hp...
hahahah... Okay.

Your buddy is referring to the "SSV". Tell him he shouldnt believe everything he reads in magazine ads.
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Old Oct 12, 2007 | 01:50 PM
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Originally Posted by HondaKiller
It does increase the volume, but by too much. There is a fine line between just right and too much. If you want the aftermarket show look, then get the V+. If you want the best HP gains get the 1/2" I'm not sure if your aftermarket strut bar will work, but any washer can be used as a spacer to clear another cm or two. Personally, i would get the 5/16 ISO kit and call it a day. HP difference is minimal and probably not noticeable. Its has proven gains time and time again, and also complies with OEM parts. Good luck with your decision.
How high would it be, if I get both V+ and 5/16"? It won't clear the strut bar nor engine cover, will it?

I like the look of V+ but popular dyno charts shows that 5/16" gives better performance.
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Old Oct 12, 2007 | 01:51 PM
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Originally Posted by XenoJC
How high would it be, if I get both V+ and 5/16"? It won't clear the strut bar nor engine cover, will it?

I like the look of V+ but popular dyno charts shows that 5/16" gives better performance.
Not only will that give you no gain over the spacer itself, but there's no way in hell it would clear the strut bar. Oh, and plastic plenums ftl...

Just do what has been proven to be effective and get a spacer or go with a REAL plenum like APS or Crawford.
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Old Oct 12, 2007 | 01:57 PM
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save your money and just get the Motordyne 5/16 spacer and MREV 2...guaranteed that their both the best bang for your buck mods.
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Old Oct 12, 2007 | 02:30 PM
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Originally Posted by pony_killer
save your money and just get the Motordyne 5/16 spacer and MREV 2...guaranteed that their both the best bang for your buck mods.
Right! I'm just 'ricey' and I liked the aftermarket look of V+

So originally, I was going to get the MREV2 and V+; if the gains of V+ and MD 5/16" were about the same.

Some told me they are about the same, and some gave me these dyno charts, http://www.motordyneengineering.com/...tAnalysis2.gif, http://www.motordyneengineering.com/...tAnalysis6.gif, and told me to go with the MD.

However, suppose on these dyno charts, Plenum(K) represents the Kinetix; Is this the older V4 or the newest V+?
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Old Oct 12, 2007 | 02:53 PM
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Motordyne or Hope with cosworth thats it really.
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Old Oct 12, 2007 | 04:57 PM
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Originally Posted by XenoJC
Right! I'm just 'ricey' and I liked the aftermarket look of V+

So originally, I was going to get the MREV2 and V+; if the gains of V+ and MD 5/16" were about the same.

Some told me they are about the same, and some gave me these dyno charts, http://www.motordyneengineering.com/...tAnalysis2.gif, http://www.motordyneengineering.com/...tAnalysis6.gif, and told me to go with the MD.

However, suppose on these dyno charts, Plenum(K) represents the Kinetix; Is this the older V4 or the newest V+?
i'm answering my own questions in case some of you are interested also...

I wrote a direct email to Kinetix and this was the reply I got back.

Originally Posted by Kinetix
I have not been on the forums for a long while. Those dyno graphs appear to
show v4 plenum. The new v+ plenum has about 10% more volume, which gives a
bit of an increase over older version.

What you wont see in a dyno test is heat soak on the engine, which our
plenum fights off quite well. After about 1 hour of use, our plenum will be
about 50 degrees cooler! than an aluminum option. This wont show up on a
dyno.
I think I'm going with the the Kinetix V+ Plenum and Motordyne MREV 2!!
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Old Oct 13, 2007 | 05:39 AM
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Originally Posted by XenoJC
i'm answering my own questions in case some of you are interested also...

I wrote a direct email to Kinetix and this was the reply I got back.



I think I'm going with the the Kinetix V+ Plenum and Motordyne MREV 2!!
i hope your buying an engine management system to go along with that MREV2. Since your non rev up like myself, you will require a tune after installing both. If you dont, your car probably wont run right, and wont produce half the hp/tq it should. just my .02
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Old Oct 13, 2007 | 11:02 AM
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Originally Posted by HondaKiller
i hope your buying an engine management system to go along with that MREV2. Since your non rev up like myself, you will require a tune after installing both. If you dont, your car probably wont run right, and wont produce half the hp/tq it should. just my .02
oh, thanks for the tips! yes, i also heard about that while i was searching before this thread. i'm putting on the v+ for now and then mrev2 during the time of greddy tt installation. e-manage should do the trick, am i wrong?

thanks again for the all the words.
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