Air Raid MIT JR $50 off on amazon right now 11/15

[R3cord303]

I'm still waiting on @R3cord303 to shave he chambers off his stock intake and report back.

Hell, I have my stock one. Maybe I'll shave it next time I have nothing better to do.

I will run to the auto parts store at some point this week to get the JB Weld and maybe some spray paint to change the color. I’m eyeing the holes where it sucks air from in the fender too... maybe I can hog those out some and free up some CFM. I know on the S10 I made the intake noise louder when I cut out most of the baffles in the stock air box. Anywho hopefully next weekend. Got too much stuff to do this weekend, though I did find my dremel!

 

[Ilikemtb999]

I could see cutting the center between the holes out in the fender.



I’ve removed baffles off an intake before but they weren’t very noticeable since they were on the underside only. I just glued some plastic over the hole from the piece I cut off. Held up for years and years.

 

[kbuskill]

I will run to the auto parts store at some point this week to get the JB Weld and maybe some spray paint to change the color. I’m eyeing the holes where it sucks air from in the fender too... maybe I can hog those out some and free up some CFM. I know on the S10 I made the intake noise louder when I cut out most of the baffles in the stock air box. Anywho hopefully next weekend. Got too much stuff to do this weekend, though I did find my dremel!

I could see cutting the center between the holes out in the fender.



move removed baffles off an intake before but they weren’t very noticeable since on the underside only. I just glued some plastic over the hole from the piece I cut off. Held up for years and years.

Can't seem to find the picture of my fender after it was cut.

 

[R3cord303]

View attachment 234440
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View attachment 234442

Can't seem to find the picture of my fender after it was cut.

man that’s sweet. Exactly what I was thinking. I may order a 4” aluminum velocity stack to put in that hole maybe? Not sure. I think cutting that bit in the middle will for sure free up some flow though!

 

[gooffeyguy]

So how big is the mass air meter and throttle body compared to that opening?

 

[R3cord303]

So how big is the mass air meter and throttle body compared to that opening?

I’ll get my calipers out when I do mine, but I think its 87mm TB/MAF? That hoged out hole is way bigger. I think a 102mm TB takes 4 inch tubing

 

[2010gmcyukon]

https://smile.amazon.com/gp/aw/d/B004IARFHO/ref=ya_aw_od_pi?ie=UTF8&psc=1&th=1


get it while it’s hot!

Thanks for posting this. I've been on the fence about one of these and this put me over.

 

[HiHoeSilver]

I have not pulled the trigger for one reason.

The Tahoe has efans. It took 201-719.
The Denali has clutch fan. Fitment shows 201-712.

I'm guessing from pics I can find that the difference is the shape of the tube to get over the fan shroud.

So what happens if I put efans in the Denali, I wonder? If I have the time/ energy, I think I'll pull the tube off the Tahoe to see how it doesn't fit in the Denali.

 

[gooffeyguy]

I’ll get my calipers out when I do mine, but I think its 87mm TB/MAF? That hoged out hole is way bigger. I think a 102mm TB takes 4 inch tubing

No need really. My point was, what does a larger opening in the fender do when the opening thats there is already bigger than the mass air meter, throttle body, and associated tubing?

2001 Yukon SLT
2012 Yukon Denali XL
2011 Yukon Denali RIP 5/20/18

 

[R3cord303]

No need really. My point was, what does a larger opening in the fender do when the opening thats there is already bigger than the mass air meter, throttle body, and associated tubing?

2001 Yukon SLT
2012 Yukon Denali XL
2011 Yukon Denali RIP 5/20/18

Its still a restriction, and in my case its exasperated by the cam. I’m going to be cutting that out in the fender, and lopping off all the intake resonators. The air raid modular intake tube would be ideal but its ~$145 more expensive than the big package of JB weld and I still have half a pack of dremel cut off disks from 5 years ago.

Obviously the restriction is mostly the diameter, and fluid dynamics states that the flow of the whole system is only as great as its smallest point, but still.

edit: and it is totally possible to do stuff like this, and make 0 additional horsepower, and help a decent bit with response! The ‘throttle blade mod’ on the vortec engines on the S10s is a great example.