My $13 Home Made Intake Elbow
05-13-2014, 01:42 AM
#1
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Thread Starter
My $13 Home Made Intake Elbow I found this at Lowes:
NIBCO 4-in x 3-in Dia 90-Degree ABS Closet Elbow Fitting
And with a torch and some massaging did this:
My friend gave me the K&N section from the MAF to Filter and I put a Spectre 4" Conical filter on it. All in all I paid a whooping $38 for this set up using some stuff from my Ebay kit I had. Not too Shabby.
And Yes I noticed a difference, I can Grab 6th gear under 1500rpms now without lugging. Previously 55mph was my lowest speed I could get 6th gear to not lug at, after a bit of tuning.
Now I can get it down to almost 40mph with no additional tuning! Mind you this is with my 230/238 Lunati Cam on a 110+6 LSA, LE2 heads and 11.7:1 CR, 355CID LT1. Daily driver too!
Top end power might not be much different, I didn't do a full throttle run yet. But the 3/4 throttle I did give it definitely responded better. By how much, ehh, it's noticeable. This is after I installed my catalytic Converter today too.
Now time for some exhaust cut outs....
Before Pic (with Ebay CAI):
NIBCO 4-in x 3-in Dia 90-Degree ABS Closet Elbow Fitting
And with a torch and some massaging did this:
My friend gave me the K&N section from the MAF to Filter and I put a Spectre 4" Conical filter on it. All in all I paid a whooping $38 for this set up using some stuff from my Ebay kit I had. Not too Shabby.
And Yes I noticed a difference, I can Grab 6th gear under 1500rpms now without lugging. Previously 55mph was my lowest speed I could get 6th gear to not lug at, after a bit of tuning.
Now I can get it down to almost 40mph with no additional tuning! Mind you this is with my 230/238 Lunati Cam on a 110+6 LSA, LE2 heads and 11.7:1 CR, 355CID LT1. Daily driver too!
Top end power might not be much different, I didn't do a full throttle run yet. But the 3/4 throttle I did give it definitely responded better. By how much, ehh, it's noticeable. This is after I installed my catalytic Converter today too.
Now time for some exhaust cut outs....
Before Pic (with Ebay CAI):
Last edited by hrcslam; 05-13-2014 at 03:06 AM.
Nice fab work though 
05-13-2014, 12:16 PM
#5
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Heat. I guess about 500 degrees makes PVC pliable. You can shape it how you want. I used a torch, but a heat gun produces nicer work. I did it by hand and that explains why it's pretty ugly. But, it works. LOL.
Cosmetics will come when the mechanical side is done.
Here's a video that shows the basic process. It's pretty easy.
Yeah, I was told that I would'nt be able to use anything under 2K rpms when I got the cam. I was able to tune it to a point where I could get it down to 55mph (about 1600-1700 rpms indicated), after this elbow install it'll go down to 40mph without bucking. Which is better than I could when the car was stock. I don't drive it that low though, I use 5th under 50mph.
Cosmetics will come when the mechanical side is done.
Here's a video that shows the basic process. It's pretty easy.
Yeah, I was told that I would'nt be able to use anything under 2K rpms when I got the cam. I was able to tune it to a point where I could get it down to 55mph (about 1600-1700 rpms indicated), after this elbow install it'll go down to 40mph without bucking. Which is better than I could when the car was stock. I don't drive it that low though, I use 5th under 50mph.
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05-13-2014, 05:28 PM
#9
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Thanks, It will be coming off for some cosmetic fine tuning.
I've seen the Trickflow, but that's $90. The cheapest I've seen was one on ebay for $30-40. I figured why not, If it doesn't work then I'm out $13 (including the coupling). It worked out.
I've seen the Trickflow, but that's $90. The cheapest I've seen was one on ebay for $30-40. I figured why not, If it doesn't work then I'm out $13 (including the coupling). It worked out.
05-14-2014, 06:35 AM
#10
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Thread Starter
Alright, I got bored and found some body work stuff laying in my garage (paint/glazing putty/sand paper). I pulled it back off and smoothed it out.
Cosmetic enhancement complied with.
Cosmetic enhancement complied with.
05-15-2014, 10:06 AM
#15
TECH Addict
Thread Starter
Thanks guys.
Thought I'd share in case others are considering something similar. I'll see how it handles the Arizona summer heat. But it took quite a bit more heat to reshape than my engine bay can deliver so I feel comfortable with it.
Thought I'd share in case others are considering something similar. I'll see how it handles the Arizona summer heat. But it took quite a bit more heat to reshape than my engine bay can deliver so I feel comfortable with it.
