Ported TB and manifold?
Thread Starter
Heel & Toe
Joined: Apr 2018
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From: MD
Ported TB and manifold?
Does anyone have a Z51 with a ported TB and intake manifold only? If so, do you have a custom tune? Also, what's the car drive like? I'm thinking about adding those two mods to my stock M7 Z51.
Thanks,
Mike
Thanks,
Mike
Le Mans Master
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From: Atlanta GA
No tune is needed for those two mods
The ECM can more than make up any adjustment that is needed ...I can understand the ported throttle body as it will give u a bit better throttle response....but why the ported manifold ?
The stock manifold will more than outflow any need u might have from a stock LT1
Dave
The ECM can more than make up any adjustment that is needed ...I can understand the ported throttle body as it will give u a bit better throttle response....but why the ported manifold ?
The stock manifold will more than outflow any need u might have from a stock LT1
Dave
Last edited by Dcasole; Jul 22, 2018 at 10:30 PM.
Le Mans Master
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From: Atlanta GA
I also question the need for an intake manifold on a stock motor .......
Dave
Last edited by Dcasole; Jul 24, 2018 at 11:26 PM.
Safety Car
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From: South Florida
Why ? It's a Z51, not a Z06 , no gains were ever proven by changing out the stock intake and filter on a stock untuned LT1 ..adding a ported throttle body is not going to add any need for increased airflow requirements or produce any more hp over stock ....
I also question the need for an intake manifold on a stock motor .......
Dave
I also question the need for an intake manifold on a stock motor .......
Dave
It's more of a whole package or none type of thing. There is dyno proven power by changing the Intake system, and adding ported TB/IM as a whole. But doing one without the other only nets very minimal gains.Also, without a tune you will leave power on the table. Personally, if you're not willing to tune the car, I wouldn't mod the car at all.
Last edited by Internets_Ninja; Jul 25, 2018 at 10:50 AM.
Le Mans Master
Joined: Oct 2014
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From: Atlanta GA
It's more of a whole package or none type of thing. There is dyno proven power by changing the Intake system, and adding ported TB/IM as a whole. But doing one without the other only nets very minimal gains.Also, without a tune you will leave power on the table. Personally, if you're not willing to tune the car, I wouldn't mod the car at all.
do you have a link as I would love to learn more ...
Back in the LS3 days folks would change out the stock manifold for a Fast102 and there was absolutely no gain unless you were doing heads, cam, headers etc as the LS3 manifold flowed really well , now there was a gain for the LS2 guys as that manifold did not flow that well
Dave
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Thank you !
do you have a link as I would love to learn more ...
Back in the LS3 days folks would change out the stock manifold for a Fast102 and there was absolutely no gain unless you were doing heads, cam, headers etc as the LS3 manifold flowed really well , now there was a gain for the LS2 guys as that manifold did not flow that well
Dave
do you have a link as I would love to learn more ...
Back in the LS3 days folks would change out the stock manifold for a Fast102 and there was absolutely no gain unless you were doing heads, cam, headers etc as the LS3 manifold flowed really well , now there was a gain for the LS2 guys as that manifold did not flow that well
Dave
https://www.corvetteforum.com/forums...ld-and-tb.html
https://www.camaro6.com/forums/showthread.php?t=470754
Le Mans Master
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All over google. Just search for it.
https://www.corvetteforum.com/forums...ld-and-tb.html
https://www.camaro6.com/forums/showthread.php?t=470754
https://www.corvetteforum.com/forums...ld-and-tb.html
https://www.camaro6.com/forums/showthread.php?t=470754
Dave
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Dave
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I have these with long tube headers, didnt really amount to much, the header and maybe the intake probably did some of the work, with the tune giving you the lions share of extra power. Its not a ton of power for what you spend, really.
Advanced
Joined: Nov 2012
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Have to disagree here. I can definitely feel the power with CAI, Ported TB and IM without a tune. My HP tuners logs seem to show it as well. Once it is tuned, you will definitely see more of a gain. Throttle response increased as well. You have to think about what you are doing. Every little mod adds up.
Drifting
Joined: Sep 2016
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Have to disagree here. I can definitely feel the power with CAI, Ported TB and IM without a tune. My HP tuners logs seem to show it as well. Once it is tuned, you will definitely see more of a gain. Throttle response increased as well. You have to think about what you are doing. Every little mod adds up.
Le Mans Master
Joined: Oct 2014
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From: Atlanta GA
Have to disagree here. I can definitely feel the power with CAI, Ported TB and IM without a tune. My HP tuners logs seem to show it as well. Once it is tuned, you will definitely see more of a gain. Throttle response increased as well. You have to think about what you are doing. Every little mod adds up.
I will give you the improved throttle response but one does not feel a 10 hp gain .....
Dave
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From: Brighton Mi
Have to disagree here. I can definitely feel the power with CAI, Ported TB and IM without a tune. My HP tuners logs seem to show it as well. Once it is tuned, you will definitely see more of a gain. Throttle response increased as well. You have to think about what you are doing. Every little mod adds up.
Safety Car
Joined: Mar 2004
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From: South Florida
I can't speak for others experiences but when I did the CAI, ported TB/IM and tune on my car I def felt a power increase in the seat of the pants. Even how it revs to redline. It's just quicker. on HP tuners you can build PID's that output HP based on Torque math so you can see this change. Also, you can see the MAP/Airflow increase. IF you know how to use HP Tuners you can def see the change.
Then when I added ARH headers and a retune, I felt the increase in power as well. Now it just screams.
I would suggest everyone take internet opinions with a grain of salt. Some people are just ignorant, and some just spit out what they read someone else say who was ignorant. I'm not suggesting everyone on the internet is ignorant but rather to not take it as gospel. I myself have had C5, C6, and C7 corvettes and have modded everyone of them. I've also had a gen 6 Camaro SS. My experience tells me do your mods as a whole group and tune for them. Any other way is really a waste of time and money. The minimum bolt on mods I would do is CAI/Ported IM-TB/ and tune. Any less is worthless IMO.
Then when I added ARH headers and a retune, I felt the increase in power as well. Now it just screams.
I would suggest everyone take internet opinions with a grain of salt. Some people are just ignorant, and some just spit out what they read someone else say who was ignorant. I'm not suggesting everyone on the internet is ignorant but rather to not take it as gospel. I myself have had C5, C6, and C7 corvettes and have modded everyone of them. I've also had a gen 6 Camaro SS. My experience tells me do your mods as a whole group and tune for them. Any other way is really a waste of time and money. The minimum bolt on mods I would do is CAI/Ported IM-TB/ and tune. Any less is worthless IMO.
Instructor
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From: Chicagoland
I have a CAI ported TB and headers, tuned. Car felt faster and dyno'd 40 hp higher. I've seen folks get the same increase with just headers, granted different dyno, days, weather, etc. I'm on the side of go big or go home. I love the sound of the car but for power I could have saved the $3K and been halfway towards a SC already. In hindsight I would've skipped the CAI and ported TB but kept the headers for the sound alone.
Safety Car
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From: Brighton Mi
I have a CAI ported TB and headers, tuned. Car felt faster and dyno'd 40 hp higher. I've seen folks get the same increase with just headers, granted different dyno, days, weather, etc. I'm on the side of go big or go home. I love the sound of the car but for power I could have saved the $3K and been halfway towards a SC already. In hindsight I would've skipped the CAI and ported TB but kept the headers for the sound alone.
Last edited by spinkick; Jul 27, 2018 at 05:25 PM.