Kinetix V+ vs. Motordyne 5/16" vs. Motordyne 1/2"
#41
Cranky FI Owner
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Originally Posted by taurran
Just a side note - we recently dyno'd my built turbocharged car with a 5/16" plenum spacer. The thing was blowing out and leaking after about 12psi, so we took the spacer out. We gained an immediate 30+whp.
Not saying they aren't bad, but the stock plenum is great for boost unless someone like Cosworth can design one that's fully intended to make use of positive manifold pressure.
I'd never use the Kraknetix plastic plenum on a boosted car.
Not saying they aren't bad, but the stock plenum is great for boost unless someone like Cosworth can design one that's fully intended to make use of positive manifold pressure.
I'd never use the Kraknetix plastic plenum on a boosted car.
#42
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Originally Posted by Alberto
Check the mating surface and/or gasket, mine holds 15psi all day long. You gained power from not losing it with the boost leak. Even my metal Crawford cracked with big thick welds...
#43
MOTORDYNE-MY350Z SPONSOR
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Originally Posted by taurran
Just a side note - we recently dyno'd my built turbocharged car with a 5/16" plenum spacer. The thing was blowing out and leaking after about 12psi, so we took the spacer out. We gained an immediate 30+whp.
Not saying they aren't bad, but the stock plenum is great for boost unless someone like Cosworth can design one that's fully intended to make use of positive manifold pressure.
I'd never use the Kraknetix plastic plenum on a boosted car.
Not saying they aren't bad, but the stock plenum is great for boost unless someone like Cosworth can design one that's fully intended to make use of positive manifold pressure.
I'd never use the Kraknetix plastic plenum on a boosted car.
Was everything torqued down to spec? I've bench tested them to 90 psi for several days with no leakage at all.
And to lose 30HP with a leak?... it would have to be a HUGE leak. A really bad one. And it doesn't sound normal at all. There are countless MD spacers running good @ 18-22 psi.
I can send you a new replacement if you like. (And please dyno it if you can.) I can't imagine it doing anything but making good gains.
Tony
#44
Dr. Wired
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Originally Posted by terrasmak
"polymer , if its good enought for guns and a lot of factory intakes , its good enough for the aftermarket." Look it up , look at how many companies use polymer for their intakes. Next look at Glock , Ruger etc etc , where is my knowledge faulty.
Yes Kinetic had problems with the first few designs , and the latest hasnt had any problems.
Yes Kinetic had problems with the first few designs , and the latest hasnt had any problems.
#45
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Originally Posted by Hydrazine
Now that's a surprise! Can you send me a picture of the spacer and gasket?
Was everything torqued down to spec? I've bench tested them to 90 psi for several days with no leakage at all.
And to lose 30HP with a leak?... it would have to be a HUGE leak. A really bad one. And it doesn't sound normal at all. There are countless MD spacers running good @ 18-22 psi.
I can send you a new replacement if you like. (And please dyno it if you can.) I can't imagine it doing anything but making good gains.
Tony
Was everything torqued down to spec? I've bench tested them to 90 psi for several days with no leakage at all.
And to lose 30HP with a leak?... it would have to be a HUGE leak. A really bad one. And it doesn't sound normal at all. There are countless MD spacers running good @ 18-22 psi.
I can send you a new replacement if you like. (And please dyno it if you can.) I can't imagine it doing anything but making good gains.
Tony
#46
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Originally Posted by Alberto
Do you seriously think its the same polymer that is used in guns? Thats like saying gas is gas, 87 octane or 116 octane its the same Just drop it, your wrong. I wouldnt recommend that plenum to anybody...
Last edited by terrasmak; 10-23-2007 at 10:36 PM.
#49
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So has anyone tested the V+ model and have dyno graphs to prove it? It seems like all the negative comments are coming from experience with previous versions of the plenum...
From the website:
Improved in EVERY aspect over our previous intake plenum, including performance:
* 270% stronger than previous plenum
* Incredible heat resistance, improved 170%, now up to 500 degrees F
* Lower operating temperatures - 50 degrees cooler than ANY aluminum plenum option
* More volume! 20% more volume than factory and 12% more than our previous version
* Completely smooth underside with NO flow restrictions
* Can handle boosted cars, with lifetime warranty on cars up to 15 psi
* Lifetime Warranty
From the website:
Improved in EVERY aspect over our previous intake plenum, including performance:
* 270% stronger than previous plenum
* Incredible heat resistance, improved 170%, now up to 500 degrees F
* Lower operating temperatures - 50 degrees cooler than ANY aluminum plenum option
* More volume! 20% more volume than factory and 12% more than our previous version
* Completely smooth underside with NO flow restrictions
* Can handle boosted cars, with lifetime warranty on cars up to 15 psi
* Lifetime Warranty
#50
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A little help.... Probably dumb question.
I was recently given a 1/2" spacer. I Have'nt had time to install yet, but I'm pretty sure I'm gonna run into clearance issues. Is there anything I can do to make this spacer work, without replacing, or removing the stock strut bar? Again, this is the 1/2" spacer, not the 5/16"...
#52
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Originally Posted by dcrobfukk
I was recently given a 1/2" spacer. I Have'nt had time to install yet, but I'm pretty sure I'm gonna run into clearance issues. Is there anything I can do to make this spacer work, without replacing, or removing the stock strut bar? Again, this is the 1/2" spacer, not the 5/16"...
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