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Old 07-26-2015, 08:55 AM   #1
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Ported intake manifolds

Just had my upper and lower intake manifolds ported and polished, the throttle body port matched and I had the restrictor removed from my BBK CAI. Removing the restrictor makes the BBK more like a Steeda or JTL intake. Straight, non turbulent air.

I now have a smooth pull throughout the rpm band. Still need a tune, but no codes thrown yet. Going to call Steeda on Monday to see if we can do some data logging.
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Old 07-26-2015, 08:20 PM   #2
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Quote:
Originally Posted by GT227 View Post
Just had my upper and lower intake manifolds ported and polished, the throttle body port matched and I had the restrictor removed from my BBK CAI. Removing the restrictor makes the BBK more like a Steeda or JTL intake. Straight, non turbulent air.

I now have a smooth pull throughout the rpm band. Still need a tune, but no codes thrown yet. Going to call Steeda on Monday to see if we can do some data logging.

Can you elaborate on that a bit?
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Old 07-28-2015, 10:03 AM   #3
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Here are some pictures of the porting and the BBK insert that was taken out of my CAI.
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Old 07-28-2015, 10:04 AM   #4
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Taking her for a nice 600 mile ride down to Miami and back.
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Old 07-28-2015, 10:07 AM   #5
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Would love to get my manis ported but hesitant to do this. Can't be down a car for a week or two while this gets mailed off, worked on, then mailed back.
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Old 07-28-2015, 10:24 AM   #6
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Ok, if i'm understanding this correctly that sleeve is to change the MAF diameter, if you've taken that out and have not gotten a retune yet, you are likely running incredibly lean.
Do me a favor, if you have a datalogger, just start the car and log the first 20 seconds or so, turn the car off, and then post the log here.
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Old 07-28-2015, 10:36 AM   #7
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And can you explain what you had to go through to get them off/back on? Just so I know if I ever need to do this, I know what to expect.
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Old 07-28-2015, 12:22 PM   #8
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Would love to get my manis ported but hesitant to do this. Can't be down a car for a week or two while this gets mailed off, worked on, then mailed back.

Kevin. A lot of people will buy a used set from a junk yard for cheap. Have those ported and polished so the only down time is swapping them out for the ones your currently using. Than you can jump on here and sell your factory ones for what the junk yards costed you and that's that.


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Old 07-28-2015, 12:25 PM   #9
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I will try and datalog when I have a chance. I've been monitoring the air/fuel mixture and running right at 14.0-14.2. Also, it hasn't thrown a code yet. About 100 miles in. And averaging 29 mpg, but getting better as I go.

I agree that I definitely need a tune to dial her in. Just waiting on Steeda and then need to datalog.

I had Mark Peterson do my porting, just south of Tampa. He's big on the Facebook cyclone groups. I dropped my car off at around 5pm on Friday. Picked her up on Saturday around 7pm.
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Old 07-28-2015, 12:38 PM   #10
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I didn't even think of that. I will look around for used stock manis after my procharger goes on.
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Old 07-28-2015, 12:51 PM   #11
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Welcome


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Old 07-28-2015, 12:54 PM   #12
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Lol I hit the "Thanks" button earlier instead of saying it on here XD

Does anyone even use that?
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Old 07-28-2015, 03:08 PM   #13
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Just a quick question if you don't mind OP but is it worth even getting port manifolds? Like what are the benefits of them?


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Old 07-28-2015, 04:04 PM   #14
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It will allow for smoother air flow. Thus helping your air intake and with a proper tune will help increase hp and tq. The car will have more useable air so you can dump more gas into it. It's just like doing a port and polish on an older motor.



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---------- Post added at 09:04 PM ---------- Previous post was at 09:03 PM ----------

There's more too it but that's the simple idea behind it. I'm sure volt wings will write a book for you lol.


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Old 07-28-2015, 08:53 PM   #15
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So you are running without the insert which makes the maf area larger? Also with ported mani's and the old tune. Please do not step on the gas.

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Old 07-28-2015, 09:07 PM   #16
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Originally Posted by 20prima10 View Post
It will allow for smoother air flow. Thus helping your air intake and with a proper tune will help increase hp and tq. The car will have more useable air so you can dump more gas into it. It's just like doing a port and polish on an older motor.



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---------- Post added at 09:04 PM ---------- Previous post was at 09:03 PM ----------

There's more too it but that's the simple idea behind it. I'm sure volt wings will write a book for you lol.


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How much of a boost in horsepower and torque is expected?


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Old 07-28-2015, 09:36 PM   #17
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On these motors I honestly don't know. Wud all depend on the tune. Some tuners might get 2hp while others might get let's say ten I'm not really sure. It will more or less help you creat smooth power through the rpm range.


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Old 07-28-2015, 10:56 PM   #18
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On these motors I honestly don't know. Wud all depend on the tune. Some tuners might get 2hp while others might get let's say ten I'm not really sure. It will more or less help you creat smooth power through the rpm range.


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Thanks for the answer 👍


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Old 07-30-2015, 03:07 PM   #19
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Back from my 600 mile trip. Check engine light came on on way back. Kept RPMs low (2000 and under) basically, the entire way. 28 average mpg. Kept Air/fuel ratio at 14. Waiting on Steeda for the Tune....just submitted request on Monday.
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Old 07-30-2015, 03:14 PM   #20
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Did you check the code? I wonder if it's running to lean now that it has increased air flow capability b


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Old 07-30-2015, 05:37 PM   #21
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Old 07-30-2015, 06:52 PM   #22
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Yup. U need to update the tune assp. This is an easy spot to fix on the tune it's just due to the port and polish. No big deal buddy


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Old 07-31-2015, 07:27 AM   #23
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Thanks guys. Just waiting on Steeda. Imagine it should be any day now. Can't wait to be able to open her up.
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Old 07-31-2015, 07:36 AM   #24
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I didn't even think of that. I will look around for used stock manis after my procharger goes on.
I remember reading on another board that there is a small difference between the 2010-2012 manifolds and the 2013-2014. I believe the 2013-2014 are supposed to be slightly better....don't remember why though.
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Old 07-31-2015, 07:43 AM   #25
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Because there newer duh. Jk. I've never heard that before man.


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Old 07-31-2015, 09:24 AM   #26
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I remember reading on another board that there is a small difference between the 2010-2012 manifolds and the 2013-2014. I believe the 2013-2014 are supposed to be slightly better....don't remember why though.
There was a slight change in the manifold where the newer units had a straighter shot into the cylinder but ever so slightly. But when ported both are equal so don't worry about it.
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Old 07-31-2015, 09:53 AM   #27
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Back from my 600 mile trip. Check engine light came on on way back. Kept RPMs low (2000 and under) basically, the entire way. 28 average mpg. Kept Air/fuel ratio at 14. Waiting on Steeda for the Tune....just submitted request on Monday.

That's weird.. I had my manifolds ported and ran them for a bit before getting my tune updated for them. I never got a check engine light lol


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Old 07-31-2015, 10:17 AM   #28
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That all depends on the port job. His might be slightly more open than yours was.


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Old 07-31-2015, 10:43 AM   #29
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So you are running without the insert which makes the maf area larger? Also with ported mani's and the old tune. Please do not step on the gas.

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The OP also altered the MAF area so it is not reading correctly as he removed the insert inside of the CAI.
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Old 07-31-2015, 10:45 AM   #30
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The OP also altered the MAF area so it is not reading correctly as he removed the insert inside of the CAI.
I would imagine this caused his CEL. I doubt the porting is what caused it. Seeing as many others have got the porting done and did not get a CEL. I would assume since the Steeda CAI can cause a CEL, making something similar to it will also do the same.
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Old 08-02-2015, 05:18 AM   #31
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I personally am not convinced yet if the port and polish is worth the money along with the process of removing the old set and reinstall the new set.

OP , if you don't mind me asking what kind of money did this cost? I would want to have a realistic idea on the rwhp gains for this mod before I even considered dropping the coin.

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Old 08-02-2015, 07:44 AM   #32
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$350 for porting if I remember correctly?
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Old 08-02-2015, 09:55 AM   #33
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I personally am not convinced yet if the port and polish is worth the money along with the process of removing the old set and reinstall the new set.

OP , if you don't mind me asking what kind of money did this cost? I would want to have a realistic idea on the rwhp gains for this mod before I even considered dropping the coin.

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Yeah at $350 to $400 it is probably the best bang for the buck mod we can do for the 3.7.

Dynos have been showing ported manifolds making 15-20rwhp through out the power band. Id say its well worth it.
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Old 08-02-2015, 10:37 AM   #34
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Yeah at $350 to $400 it is probably the best bang for the buck mod we can do for the 3.7.

Dynos have been showing ported manifolds making 15-20rwhp through out the power band. Id say its well worth it.
Better than a throttle body lol.

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Old 08-02-2015, 10:39 AM   #35
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$350 for porting if I remember correctly?
That just for porting? Did you have your existing manifolds done or buy ported replacements?

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