Intake manifold upgrade
Thread Starter
Advanced
Joined: Jun 2016
Posts: 90
Likes: 13
Intake manifold upgrade
Hey guys I have a question for all you motor guys out there. I have a 2017 automatic Stingray, convertible with the STOCK intake manifold.
My question is......Is it worth while to upgrade to something other than stock? This is my daily cruiser, not raced, or track or anything.....just to the car wash. How about the throttle body? Can I use the stock one. Any preferences out there that you guys would recommend?
Thanks in advance.....
Ol Vette
My question is......Is it worth while to upgrade to something other than stock? This is my daily cruiser, not raced, or track or anything.....just to the car wash. How about the throttle body? Can I use the stock one. Any preferences out there that you guys would recommend?
Thanks in advance.....
Ol Vette
Safety Car
Joined: Mar 2004
Posts: 4,048
Likes: 1,478
From: South Florida
GM Performance Intake, Ported stock TB and ported LT1 intake manifold is worth a noticeable bump in power. Especially if you get it tuned. Otherwise, it's not worth doing on its own. All of those mods work together to make it viable.
Drifting
Joined: Mar 2022
Posts: 1,398
Likes: 801
From: Indiana
I bought a ported intake, had it installed and retuned. I have Holley CAI, 2" headers and X pipe. I was making 440/440 rw with that. Bought an Edgy Vette intake per the recommendation of my tuner. He'd done the $1k++ Intakes on other LS/LT engines and said they just aren't worth the money unless you are building really big numbers. The edgy Vette was ~$350 so I did that. Had fun installing it, easy to do. Took measurements against the OEM manifold. There was at most .030" difference in the runners, about .020" in the intake port. Very minimal. It was obviously done and done well. I'd wager my bets it was done on a CNC, it was very uniform.
Tuner expected I might get 15-20hp. He worked on it for 2 hours. I got 2hp/2tq. That is smaller than the difference between days of the week and much less than between two different dyno's.
Save your money.
Tuner expected I might get 15-20hp. He worked on it for 2 hours. I got 2hp/2tq. That is smaller than the difference between days of the week and much less than between two different dyno's.
Save your money.
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Le Mans Master
Joined: Oct 2014
Posts: 8,673
Likes: 2,728
From: Atlanta GA
I bought a ported intake, had it retuned. I have Holley CAI, 2" headers and X pipe. I was making 440/440 rw with that. Bought an Edgy Vette intake per the recommendation of my tuner. He'd done the $1k++ Intakes on other LS/LT engines and said they just aren't worth the money unless you are building really big numbers. The edgy Vette was ~$350 so I did that. Had fun installing it, easy to do. Took measurements against the OEM manifold. There was at most .030" difference in the runners, about .020" in the intake port. Very minimal. It was obviously done and done well. I'd wager my bets it was done on a CNC, it was very uniform.
Tuner expected I might get 15-20hp. He worked on it for 2 hours. I got 2hp/2tq. That is smaller than the difference between days of the week and much less than between two different dyno's.
Save your money.
Tuner expected I might get 15-20hp. He worked on it for 2 hours. I got 2hp/2tq. That is smaller than the difference between days of the week and much less than between two different dyno's.
Save your money.
Dave
Drifting
Joined: Mar 2022
Posts: 1,398
Likes: 801
From: Indiana
Sometimes the gain can be hard to measure on a dyno , its not about gains at the top as much as it is gains across the whole rpm band ... I have an Edgy Vette ported intake manifold and i extensively test before and after every mod I do , logging DA outside temps , track temps and data logs . I also use launch control to reduce variation . My car will pop a 1.7 60 foot on factory run craps and unprepared track time and time again , When my car was NA , my ported manifold was worth 2 tenths . I think it was a good investment
Dave
Dave
Burning Brakes
Joined: Sep 2022
Posts: 1,202
Likes: 569
From: MSP
Are you instead trying to say that peak numbers are not indicative of actual gains?
Le Mans Master
Joined: Oct 2014
Posts: 8,673
Likes: 2,728
From: Atlanta GA
So many people are hung up on peak numbers , sometimes you have to look at the gains over baseline under the peak .
Take headers for example, it's well known that headers and a tune will give you 30 -40 HP gain ..... people say they are not worth it ... but if you look at the graph on most of these, the gains start well below the peak and carry up to the red line. This is why headers really give you that seat of the pants gain that you can feel and measure ..
The same goes for the ported intake ..... pair them together and its a good gain .
Also dyno numbers are just that , numbers. It's a tool that you can use to measure gains but different days , different dynos , different operators can all produce different results .
The 1/4 track does not lie , that's where the numbers meet the road and is the true measurement of power
Dave
Le Mans Master
Joined: Oct 2014
Posts: 8,673
Likes: 2,728
From: Atlanta GA
Dave
Le Mans Master
Joined: Oct 2014
Posts: 8,673
Likes: 2,728
From: Atlanta GA
Burning Brakes
Joined: Sep 2022
Posts: 1,202
Likes: 569
From: MSP
Today I learned!
Le Mans Master
Joined: Oct 2014
Posts: 8,673
Likes: 2,728
From: Atlanta GA
What I do care about is "^&right" knew exactly what I was saying as you can see by his post above and as do many others that take my advice ....
Now, let's stick to the OP questions as stop worrying about what I have to say 👍👍
Dave
