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I am scheduled to get a port and polish on my lower manifold tomorrow. I have a few questions however. I already have the plenum mod so im looking to
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08-05-2014, 04:08 PM
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#1 (permalink) |
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Base Member
Join Date: Nov 2012
Location: Charleston, SC
Age: 40
Posts: 189
Drives: 2010 Sport 370z 6mt
Rep Power: 13  |
Port and Polish Lower Intake Questions
I am scheduled to get a port and polish on my lower manifold tomorrow. I have a few questions however. I already have the plenum mod so im looking to find out about the lower manifold now.
1. Can I lose power from this mod? 2. Anything I should ask for? 3. Has anyone done this on the forum with any feedback good or bad? 4.Normal power gains from this mod? ( I know this is probably unanswerable due to too many variables) 5. Is this mod worth it to you? Explain why. I have done a few searches on here but have been unsuccessful in finding much on this so if there is already a page for this please share it with me. |
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08-05-2014, 07:45 PM
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#3 (permalink) | |
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A True Z Fanatic
Join Date: Oct 2009
Location: Canada
Posts: 1,156
Drives: 370z
Rep Power: 24  |
Quote:
I didn't port & polish the lower intake manifold . I only ported the HR plastic intake manifold before Z1 took the same idea after on the VHR. I didn't had the chance do to a before & after dyno due to budget reason. Z1 did with the VHR IM, and showed gain. as far as the lower intake manifold , I feel you wont see much of any difference unless you also do the head. but at the power level the VHR does, It probably wouldn't be worth it. the VVEL isn't aggressive enough and then the VVEL already flow very well from factory. After what happened to Synolimit thread on his research on this topic, we are still waiting on his finding. |
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08-05-2014, 08:25 PM
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#4 (permalink) |
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Track Member
 
Join Date: Jun 2011
Location: Maine
Posts: 771
Drives: 2010 Nissan 370z
Rep Power: 15 |
One way to find out!
__________________
2010 370Z Touring MT | Stillen | Motordyne | Momentum| Z1 | Fast Intentions | Advant Garde | RE11 | Swift | SPC | Quaife | Whiteline | Evo R | 322RWHP 259ft-lb Mustang |
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08-05-2014, 09:16 PM
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#5 (permalink) |
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Base Member
Join Date: Mar 2014
Location: Fort Worth,Texas
Posts: 153
Drives: 2014 370z w/ Sp Pkg
Rep Power: 11 |
I'm going one step further and extrude honing my lower intake runners. I will let you know what the results are when I get the lower intake back from the shop. My car goes on the dyno September 3rd.
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11-19-2014, 03:24 AM
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#8 (permalink) | |
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A True Z Fanatic
Join Date: May 2013
Location: Columbus, OH
Posts: 5,051
Drives: 2013 Silver 370z
Rep Power: 3389 |
Quote:
dyno for base with CBE, intake and HFC. tune it. install all 4 ported parts and base it with the tune above. tune it. fingers crossed!
__________________
13 370z- |
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