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- philip
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- asavage
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Clay, I was at the JY today, walked the entire GM section and found one diesel, it was a 6.2l in a C30 (1T 2WD PU), similar to this one . . .
. . . and it was mostly there, so I bought the intake muffler for $9.50 . If you want it to play with, I'll ship it to you. Comes with the GM mounting bracket, so you've got somthing to bend and fold and mount with.
. . . and it was mostly there, so I bought the intake muffler for $9.50 . If you want it to play with, I'll ship it to you. Comes with the GM mounting bracket, so you've got somthing to bend and fold and mount with.
- philip
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- Location: Southern California, USA
What do these rubber hoses go to? What the story?claybodie wrote:-Clayton
Last edited by philip 17 years ago, edited 1 time in total.
-Philip
Passed 08May2008
My friend, you are missed . . .
1982 Datsun 720KC SD-22
"Im slow and I'm ahead of you"
Passed 08May2008
My friend, you are missed . . .
1982 Datsun 720KC SD-22
"Im slow and I'm ahead of you"
- philip
- Deceased
- Posts: 1494
- Joined: 18 years ago
- Location: Southern California, USA
- philip
- Deceased
- Posts: 1494
- Joined: 18 years ago
- Location: Southern California, USA
Back to the topic . Last week I replaced the exhaust pass-thru "muffler" for a new, conventional muffler (some new gas car). ALSO, reinstalled the OEM paper filter / canister (I had to goop up cracks in the rubber hose).
Much less exhaust booming bark across torque peak rpm with 1/2+ throttle.
SAME about of intake sound. It used to be howl only above 3,000 rpm with WOT. Now with the canister ... there's a hollowing honk anytime when the WOT is so.
Still top engine power. Same MPG
Much less exhaust booming bark across torque peak rpm with 1/2+ throttle.
SAME about of intake sound. It used to be howl only above 3,000 rpm with WOT. Now with the canister ... there's a hollowing honk anytime when the WOT is so.
Still top engine power. Same MPG
-Philip
Passed 08May2008
My friend, you are missed . . .
1982 Datsun 720KC SD-22
"Im slow and I'm ahead of you"
Passed 08May2008
My friend, you are missed . . .
1982 Datsun 720KC SD-22
"Im slow and I'm ahead of you"
- asavage
- Site Admin
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Above, the end with the hose attached is the intake end. The other end (without the hose) goes to the air filter inlet.
Below, the hose is missing, but you can ID the angled round-to-round adapter as the same as above:
I didn't take a picture, but if you look in the air filter end, you'll also see some slots to the outer chamber, IIRC.
Regards,
Al S.
1982 Maxima diesel wagon, 2nd & 4th owner, 165k miles, rusty & burgundy/grey. Purchased 1996, SOLD 16Feb10
1983 Maxima diesel wagon, 199k miles, rusty, light yellow/light brown. SOLD 14Jul07
1981 720 SD22 (scrapped 04Sep07)
1983 Sentra CD17, 255k, bought 06Jul08, gave it away 22Jun10.
Al S.
1982 Maxima diesel wagon, 2nd & 4th owner, 165k miles, rusty & burgundy/grey. Purchased 1996, SOLD 16Feb10
1983 Maxima diesel wagon, 199k miles, rusty, light yellow/light brown. SOLD 14Jul07
1981 720 SD22 (scrapped 04Sep07)
1983 Sentra CD17, 255k, bought 06Jul08, gave it away 22Jun10.
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- Posts: 51
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- Location: Corvallis, OR
Alright, so I used some PVC tubing attachments and found I was able to hide the intake muffler in the wheel well above the left tire. It made a difference, but not as dramatic as I was hoping it would be. Plus, due to the length of the muffler, the sound source is now closer to the cab of the truck. So I think I have two options at this point:
1) Build a 'sound proof' box for the end of the intake. Basically, this would be a box made of sheet metal, with baffles, and sealed in an inch of sound deadening material. I think this would make a pretty big difference.
2) Take the intake somewhere else. And by somewhere else I mean somewhere behind the cab, where the sound will go out the back end instead of my ears. I have a feeling this idea is going to be knocked out, but I might just try it anyway. What if I continued piping from the wheel well back to where the spare tire is, following the exhaust tubing (but far enough away to avoid heat issues), and ending it in with the intake muffler and maybe even a sound-proof box?
A few obvious problems a) length of the tubing adds resistance to air-flow and b) driving on dirt roads would cost a lot of air filters...
Comments would be much appreciated.
-Clayton
1) Build a 'sound proof' box for the end of the intake. Basically, this would be a box made of sheet metal, with baffles, and sealed in an inch of sound deadening material. I think this would make a pretty big difference.
2) Take the intake somewhere else. And by somewhere else I mean somewhere behind the cab, where the sound will go out the back end instead of my ears. I have a feeling this idea is going to be knocked out, but I might just try it anyway. What if I continued piping from the wheel well back to where the spare tire is, following the exhaust tubing (but far enough away to avoid heat issues), and ending it in with the intake muffler and maybe even a sound-proof box?
A few obvious problems a) length of the tubing adds resistance to air-flow and b) driving on dirt roads would cost a lot of air filters...
Comments would be much appreciated.
-Clayton
1982 Datsun 720 w/ sd22 running on B100.
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