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#23
07-25-2012, 10:48 PM
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Going to look good on the car.
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Ray 1970 SS Chevelle Van Nuys Built 
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#24
07-26-2012, 08:34 PM
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Those are nice !
__________________
Get in, sit down, shut up, hold on...cause Ms Grumpy is driving ! For the audio geek try: www.audiokarma.org
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#25
07-26-2012, 09:41 PM
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Thanks,
I made the pieces to quiet them down. They are perforated stainless. I rolled them into a cone shape and slid them into the pipe just in front of the turn down. I was surprised but they did help. Not enough though. I am going to take them out and order muffler inserts from Speedway. I can get them in 3 1/2" by 7" long. My father-in-law has them on his 33 chevy. I was wanting to keep the restriction to a minimum but I can't get pulled over every time i drive this thing either. I took a video to post but the car is so loud that it just sounded like white noise. I'll try again after I tone it down a bit.
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#26
07-27-2012, 09:58 AM
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No tail pipes or crossover pipe? ( X or H) Both would tone it down A LOT.
__________________
1972 SS 454 Chevelle LS5/M21/12 bolt 3.73 posi 1969 Malibu COPO L72/M20/12 bolt 3.31 posi 1968 Malibu LQ9/4L80E/12 bolt 3.73 posi
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#27
07-27-2012, 12:25 PM
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You are right, I just dont want to run tail pipes. I like the sound of large straight pipes. I just gotta get it pulled down a little more. I'll get there just got to play with it.
__________________
Speed costs money. How fast do you want to go?
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#28
08-02-2012, 09:40 PM
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Well, I have given up on my home made mufflers. I am going to get some 3.50 inlet / outlet mufflers. Also going to do the H pipe. I spoke with my engine builder and he told me to make the H as close to the headers as I can. I got a breakdown on my H.P. and torque while I had him on the phone. Top horse is 570 and torque is 511. Best shift point should be at 5500 to 5700 with 533 horse and 511 torque. I have a 2800 stall, and should be making 413 lbs. of torque at that point. My converter should flash around 3400, my guess would be around 450 torque at that point.
__________________
Speed costs money. How fast do you want to go?
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#29
08-02-2012, 09:52 PM
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Well, I have given up on my home made mufflers. I am going to get some 3.50 inlet / outlet mufflers. Also going to do the H pipe. I spoke with my engine builder and he told me to make the H as close to the headers as I can. I got a breakdown on my H.P. and torque while I had him on the phone. Top horse is 570 and torque is 511. Best shift point should be at 5500 to 5700 with 533 horse and 511 torque. I have a 2800 stall, and should be making 413 lbs. of torque at that point. My converter should flash around 3400, my guess would be around 450 torque at that point.
__________________
Speed costs money. How fast do you want to go?
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#30
08-03-2012, 01:13 PM
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Wonder why he told you that about the placement of the H crossover? It is standard practice to use a crayon and mark the pipes. Then start the car and let it burn off. Where it stops burning off, that is where you want to put the crossover. (or at least as close as possible - space permitting)
__________________
1972 SS 454 Chevelle LS5/M21/12 bolt 3.73 posi 1969 Malibu COPO L72/M20/12 bolt 3.31 posi 1968 Malibu LQ9/4L80E/12 bolt 3.73 posi
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