Checkpoint Engineering Cold Air Intake: Install & Review
#27
NA Powah, Every Hour!
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Yo,
Ask and you shall receive:
BTW, it's 2.75" pipe. *grin* Okay, I gotta run!
Kevin
1989 GTUs "I gotta work out!"
Originally posted by NZConvertible
Yeah man, makes my head hurt...
But Santiago's right, the bigger the better. A 3" pipe that necks down to 2.5" will still have less restriction than one that is 2.5" all the way.
How much modifying of the undertray is required? Pics?
Yeah man, makes my head hurt...
But Santiago's right, the bigger the better. A 3" pipe that necks down to 2.5" will still have less restriction than one that is 2.5" all the way.
How much modifying of the undertray is required? Pics?
BTW, it's 2.75" pipe. *grin* Okay, I gotta run!
Kevin
1989 GTUs "I gotta work out!"
#29
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Looks good, I like the back yard engineering with the mesh file tray too!
And don't worry about the sound...almost nothing compares to the intake bark of a B16 with an AEM.
And don't worry about the sound...almost nothing compares to the intake bark of a B16 with an AEM.
#30
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Yo,
Yeah, I doubt I can make snuffling dogs snap their heads out of the grass when I go by and hit VDI. *grin* That was hella funny. Kinda made me all mad again your car got stolen by those bastards.
Oh well, three strikes and you're out!
Mark, I just used a little McGuiers(sp!) Natural Shine here and there. Someone needs to have a clean engine bay, might as well be me!
Kevin
1989 GTUs "Now at work..."
Originally posted by 80's Boy
Looks good, I like the back yard engineering with the mesh file tray too!
And don't worry about the sound...almost nothing compares to the intake bark of a B16 with an AEM.
Looks good, I like the back yard engineering with the mesh file tray too!
And don't worry about the sound...almost nothing compares to the intake bark of a B16 with an AEM.
Oh well, three strikes and you're out!
Mark, I just used a little McGuiers(sp!) Natural Shine here and there. Someone needs to have a clean engine bay, might as well be me!
Kevin
1989 GTUs "Now at work..."
#31
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Originally posted by NZConvertible
But Santiago's right, the bigger the better.
But Santiago's right, the bigger the better.
#32
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Originally posted by RarestRX
Yo,
Yeah, I doubt I can make snuffling dogs snap their heads out of the grass when I go by and hit VDI. *grin* That was hella funny. Kinda made me all mad again your car got stolen by those bastards.
Yo,
Yeah, I doubt I can make snuffling dogs snap their heads out of the grass when I go by and hit VDI. *grin* That was hella funny. Kinda made me all mad again your car got stolen by those bastards.
Almost as good as the time I scared a bunch of teeny boppers with it, it was almost like domino's!
#33
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Originally posted by Icemark
Hey Kevin...
How much is your Amour All bill each month... you sure have some shinny stuff in there
Hey Kevin...
How much is your Amour All bill each month... you sure have some shinny stuff in there
Steve
#35
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Yo,
Bastard! Heh. I will now get an AEM vinyl stickers and put 'em on the side 'cause I got the Cold Air Intake!
Thanks for the compliments. Butt dyno is good, doesn't feel like it's working as hard up in the high R's, like 7000 to 8600. Pulls past buzzer and keeps climbing.
I am trying to set an appointment for dyno on this Wednesday, so the 13B will talk or the bullshit walks. I hope the dyno doesn't dash my hopes like it always does. *chuckle*
Kevin
1989 GTUs "Any bolt on's I missed?"
Originally posted by rxse7en
Rice! :P
J/K Looks outstanding Kevin. How's the butt dyno?
Brian
Rice! :P
J/K Looks outstanding Kevin. How's the butt dyno?
Brian
Thanks for the compliments. Butt dyno is good, doesn't feel like it's working as hard up in the high R's, like 7000 to 8600. Pulls past buzzer and keeps climbing.
I am trying to set an appointment for dyno on this Wednesday, so the 13B will talk or the bullshit walks. I hope the dyno doesn't dash my hopes like it always does. *chuckle*
Kevin
1989 GTUs "Any bolt on's I missed?"
#36
I'm a boost creep...
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Originally posted by Evil Aviator
A larger pipe also has more total internal surface area, it reduces the air velocity (and therefore inertia), and increases the volume which reduces throttle response.
A larger pipe also has more total internal surface area, it reduces the air velocity (and therefore inertia), and increases the volume which reduces throttle response.
Additionally, neck-down or neck-up points create pressure drop...
...and larger diameter pipe must be bent to a tighter radius to fit in the same space as smaller diameter pipe.
I believe that the "right" size is better than arbitrarily choosing the largest size that will physically fit.
#37
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Originally posted by NZConvertible
I think you're over-complicating this. Bigger inlet pipes to airboxes and AFM's have been proven many times to improve performance. In the same way that post-turbine exhausts should be as big as possible for maximum power, intakes should be sized for minimal restriction.
I think you're over-complicating this. Bigger inlet pipes to airboxes and AFM's have been proven many times to improve performance. In the same way that post-turbine exhausts should be as big as possible for maximum power, intakes should be sized for minimal restriction.
2) So why use air horns (intake trumpets) with only a slight 3-10deg taper? Why not use a 45deg or larger taper to make the inlet as large as possible?
#38
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Originally posted by Evil Aviator
1) So why not use a 20" pipe for the inlet or post-turbine exhaust?
1) So why not use a 20" pipe for the inlet or post-turbine exhaust?
2) So why use air horns (intake trumpets) with only a slight 3-10deg taper? Why not use a 45deg or larger taper to make the inlet as large as possible?
But as you said, step-ups and step-downs cause pressure drop. The shallower the angle, the less the pressure drop. If you want to change pipe size, you pick a length that gives your transition the shallowest angle practical. For our intake pipe, the transition is just a small part of the overall restriction.
I don't think I'm telling you anything you don't already know here.
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trickster
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