Jeffy style CAI
06-14-2010, 12:24 PM
#1
2 VE's are better than one!
Thread Starter
iTrader: (31)
Join Date: Sep 2000
Location: Dallas
Posts: 7,358
Jeffy style CAI
Even though my blue VE is "fully modded", I've still been experiencing a bit of heat soak during these past few weeks. I really thought Aaron's spacers would nearly eliminate the issue, but that's probably asking a bit much from some plastic pieces. I figured the "HAI" I've been running probably contributed to the heat soak, but I didn't want to hack up my fender/frame rail as this car will eventually get the turbo set-up I built a few years back and I don't want the big hole there permanently.
I decided to do a Jeffy style CAI behind the headlight. It was really incredibly easy. I spent maybe a half hour total on it. Aside from the midpipe (which most with a "HAI" would already have) all you need is two 90 degree bends. You don't even need to weld any mandrel bends together or half-crap it together with offset/crooked/stretched couplers, because the two 90 degree bends work perfectly. All you've gotta do is cut a small piece out behind the headlight (I actually just made a cut across it and bent it down/over) and cut some length off one of the 90 degree bends. I just used my eBay CAI pipe for that, and the blue pipe is the lower end of my original WSP CAI (which itself is just a 90 degree bend).
Onto the pics:
I'll paint it and get some matching couplers as well as secure the fuse box another day. I'm just glad I've got a CAI again now. I forgot how noticeable these are on the butt-dyno, especially in the mid-range.
Also, for track days, removing the lower 90 degree bend lets you put the filter right on the end of the pipe (end of the blue pipe in my pics) where the headlight sits. Pretty cool and fits perfectly
I decided to do a Jeffy style CAI behind the headlight. It was really incredibly easy. I spent maybe a half hour total on it. Aside from the midpipe (which most with a "HAI" would already have) all you need is two 90 degree bends. You don't even need to weld any mandrel bends together or half-crap it together with offset/crooked/stretched couplers, because the two 90 degree bends work perfectly. All you've gotta do is cut a small piece out behind the headlight (I actually just made a cut across it and bent it down/over) and cut some length off one of the 90 degree bends. I just used my eBay CAI pipe for that, and the blue pipe is the lower end of my original WSP CAI (which itself is just a 90 degree bend).
Onto the pics:
I'll paint it and get some matching couplers as well as secure the fuse box another day. I'm just glad I've got a CAI again now. I forgot how noticeable these are on the butt-dyno, especially in the mid-range.
Also, for track days, removing the lower 90 degree bend lets you put the filter right on the end of the pipe (end of the blue pipe in my pics) where the headlight sits. Pretty cool and fits perfectly
Last edited by James92SE; 06-14-2010 at 12:27 PM.
06-14-2010, 12:27 PM
#2
stupid proxy is blocking photobucket.
gotta wait for my phone to eventually load the web page....
Danny's smiley isn;t showing, either!
gotta love my job
Last edited by BenStoked; 06-14-2010 at 12:30 PM.
06-14-2010, 02:32 PM
#6
2 VE's are better than one!
Thread Starter
iTrader: (31)
Join Date: Sep 2000
Location: Dallas
Posts: 7,358
Some people on dynos have claimed there's no real benefit of a CAI over the HAI, but they usually fail to mention/keep in mind that a dyno is done with the hood open and a HUGE fan in front of the car, minimizing the "heat soak" effect of blazing hot air just sitting in the engine bay that you would experience in the "real world".
At least here in Texas, the CAI makes a world of difference
06-14-2010, 03:10 PM
#7
I miss my VE
Join Date: Apr 2005
Location: NY
Posts: 2,553
Oh there's no question it's better than stock. The real debate over the years has been CAI vs. HAI
Some people on dynos have claimed there's no real benefit of a CAI over the HAI, but they usually fail to mention/keep in mind that a dyno is done with the hood open and a HUGE fan in front of the car, minimizing the "heat soak" effect of blazing hot air just sitting in the engine bay that you would experience in the "real world".
At least here in Texas, the CAI makes a world of difference
Some people on dynos have claimed there's no real benefit of a CAI over the HAI, but they usually fail to mention/keep in mind that a dyno is done with the hood open and a HUGE fan in front of the car, minimizing the "heat soak" effect of blazing hot air just sitting in the engine bay that you would experience in the "real world".
At least here in Texas, the CAI makes a world of difference
06-14-2010, 03:17 PM
#8
2 VE's are better than one!
Thread Starter
iTrader: (31)
Join Date: Sep 2000
Location: Dallas
Posts: 7,358
http://www.isuzuperformance.com/isup...ch/intake.html
^ Some good reading I just picked up in the 4th gen section that pretty much confirms my HAI suspicions
^ Some good reading I just picked up in the 4th gen section that pretty much confirms my HAI suspicions
06-14-2010, 04:38 PM
#10
looks good. Tell me where you buy the couplers from, especially if you get a good deal. I am still rocking the cut up massive radiator hose.
I have the entire Jeff CAI somewhere, but never have installed it because I had no splash guards. However, now that I have a good set of splash guards (thanks to my parts car) I might actually install the CAI pieces.
I have the entire Jeff CAI somewhere, but never have installed it because I had no splash guards. However, now that I have a good set of splash guards (thanks to my parts car) I might actually install the CAI pieces.
06-14-2010, 05:46 PM
#12
2 VE's are better than one!
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iTrader: (31)
Join Date: Sep 2000
Location: Dallas
Posts: 7,358
Ahhh, that's right. For some reason I was thinking you made it and he installed it on his car first. But props to Shawn/Shaun/Sean/Shonne as well 
It makes me wonder why Place Racing and WSP and whatnot didn't just make this design originally with their CAI's. I mean, it seems more logical than having to cut a hole in the framerail/fender and it's only 2-3" longer than the WSP design (which jams the filter right into the framerail anyway) and is a huge PITA to get at the filter. But I guess hindsight is 20/20
CMax.. you're right about possibly limiting in the high RPM range, but the VE is so stout up top it shouldn't "hurt" it any. It's always been said that long CAI piping helps low/midrange and hurts top end, but on the VE that's perfectly fine with me
It makes me wonder why Place Racing and WSP and whatnot didn't just make this design originally with their CAI's. I mean, it seems more logical than having to cut a hole in the framerail/fender and it's only 2-3" longer than the WSP design (which jams the filter right into the framerail anyway) and is a huge PITA to get at the filter. But I guess hindsight is 20/20
CMax.. you're right about possibly limiting in the high RPM range, but the VE is so stout up top it shouldn't "hurt" it any. It's always been said that long CAI piping helps low/midrange and hurts top end, but on the VE that's perfectly fine with me
06-14-2010, 11:01 PM
#13
idk about VEs but i know that on VGs the throttlebody has coolant passages running thru it. if the VEs have that.. wouldnt the benefits of a CAI be cancelled out by the heat of the coolant running thru the throttle body?
06-15-2010, 12:28 AM
#14
Not if your running a bypass. Even still it shouldn't bother it.
06-15-2010, 12:42 AM
#15
Even though my blue VE is "fully modded", I've still been experiencing a bit of heat soak during these past few weeks. I really thought Aaron's spacers would nearly eliminate the issue, but that's probably asking a bit much from some plastic pieces. I figured the "HAI" I've been running probably contributed to the heat soak, but I didn't want to hack up my fender/frame rail as this car will eventually get the turbo set-up I built a few years back and I don't want the big hole there permanently.
I decided to do a Jeffy style CAI behind the headlight. It was really incredibly easy. I spent maybe a half hour total on it. Aside from the midpipe (which most with a "HAI" would already have) all you need is two 90 degree bends. You don't even need to weld any mandrel bends together or half-crap it together with offset/crooked/stretched couplers, because the two 90 degree bends work perfectly. All you've gotta do is cut a small piece out behind the headlight (I actually just made a cut across it and bent it down/over) and cut some length off one of the 90 degree bends. I just used my eBay CAI pipe for that, and the blue pipe is the lower end of my original WSP CAI (which itself is just a 90 degree bend).
Onto the pics:
I'll paint it and get some matching couplers as well as secure the fuse box another day. I'm just glad I've got a CAI again now. I forgot how noticeable these are on the butt-dyno, especially in the mid-range.
Also, for track days, removing the lower 90 degree bend lets you put the filter right on the end of the pipe (end of the blue pipe in my pics) where the headlight sits. Pretty cool and fits perfectly
I decided to do a Jeffy style CAI behind the headlight. It was really incredibly easy. I spent maybe a half hour total on it. Aside from the midpipe (which most with a "HAI" would already have) all you need is two 90 degree bends. You don't even need to weld any mandrel bends together or half-crap it together with offset/crooked/stretched couplers, because the two 90 degree bends work perfectly. All you've gotta do is cut a small piece out behind the headlight (I actually just made a cut across it and bent it down/over) and cut some length off one of the 90 degree bends. I just used my eBay CAI pipe for that, and the blue pipe is the lower end of my original WSP CAI (which itself is just a 90 degree bend).
Onto the pics:
I'll paint it and get some matching couplers as well as secure the fuse box another day. I'm just glad I've got a CAI again now. I forgot how noticeable these are on the butt-dyno, especially in the mid-range.
Also, for track days, removing the lower 90 degree bend lets you put the filter right on the end of the pipe (end of the blue pipe in my pics) where the headlight sits. Pretty cool and fits perfectly
Thank you James. You just helped me realize what I wanted to do for a CAI. I don't like the way this ebay one goes together. Nor do I want to cut a whole into my inner fender.
06-15-2010, 11:52 AM
#16
Ahhh, that's right. For some reason I was thinking you made it and he installed it on his car first. But props to Shawn/Shaun/Sean/Shonne as well
It makes me wonder why Place Racing and WSP and whatnot didn't just make this design originally with their CAI's. I mean, it seems more logical than having to cut a hole in the framerail/fender and it's only 2-3" longer than the WSP design (which jams the filter right into the framerail anyway) and is a huge PITA to get at the filter. But I guess hindsight is 20/20
CMax.. you're right about possibly limiting in the high RPM range, but the VE is so stout up top it shouldn't "hurt" it any. It's always been said that long CAI piping helps low/midrange and hurts top end, but on the VE that's perfectly fine with me
It makes me wonder why Place Racing and WSP and whatnot didn't just make this design originally with their CAI's. I mean, it seems more logical than having to cut a hole in the framerail/fender and it's only 2-3" longer than the WSP design (which jams the filter right into the framerail anyway) and is a huge PITA to get at the filter. But I guess hindsight is 20/20
CMax.. you're right about possibly limiting in the high RPM range, but the VE is so stout up top it shouldn't "hurt" it any. It's always been said that long CAI piping helps low/midrange and hurts top end, but on the VE that's perfectly fine with me
06-16-2010, 12:11 AM
#17
Ahhh, that's right. For some reason I was thinking you made it and he installed it on his car first. But props to Shawn/Shaun/Sean/Shonne as well
It makes me wonder why Place Racing and WSP and whatnot didn't just make this design originally with their CAI's. I mean, it seems more logical than having to cut a hole in the framerail/fender and it's only 2-3" longer than the WSP design (which jams the filter right into the framerail anyway) and is a huge PITA to get at the filter. But I guess hindsight is 20/20
CMax.. you're right about possibly limiting in the high RPM range, but the VE is so stout up top it shouldn't "hurt" it any. It's always been said that long CAI piping helps low/midrange and hurts top end, but on the VE that's perfectly fine with me
It makes me wonder why Place Racing and WSP and whatnot didn't just make this design originally with their CAI's. I mean, it seems more logical than having to cut a hole in the framerail/fender and it's only 2-3" longer than the WSP design (which jams the filter right into the framerail anyway) and is a huge PITA to get at the filter. But I guess hindsight is 20/20
CMax.. you're right about possibly limiting in the high RPM range, but the VE is so stout up top it shouldn't "hurt" it any. It's always been said that long CAI piping helps low/midrange and hurts top end, but on the VE that's perfectly fine with me
06-21-2010, 05:27 PM
#19
Yeah my VQ35 is a beast @ low/mid/hi rpm and my ex-Injen intake (39" long, 3" tubing) wasn't able too pass air thru it fast enough for the engine's demands @ hi rpm! I found that the SRI better suited for higher rpm power.....Same as any air passage on the exhaust or intake side....longer for torque, shorter for Hi rpm.....That's my point!
06-22-2010, 12:38 AM
#21
An exhaust cutout on the intake with an electric control solenoid.......triggered by a rpm triggered switch......frankenstein style
Last edited by CMax03; 06-22-2010 at 12:40 AM.
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