Your Car's Exhaust

  • Thread starter buickgnx88
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Not sure if I replied in here yet but here are a few videos of the exhaust on my 69 Camaro. 40 Series Flowmasters that exit the center of the car like a Lamborghini Murcielago. Built myself.

Full throttle on Grattan Raceway road track with 12 turns chasing down a Porsche Boxter.
http://www.adfabdesign.com/RaceEven...ideos/Aaron-lap23-red-porsche-boxter-pass.wmv

Car idle then shifting through a few gears entering track.
http://www.adfabdesign.com/Videos/Car idle and shifting.wmv

49.JPG


13.jpg
 
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Eunos_Cosmo
Dangerous move....but I think it looks excellent.
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Thanks. Took me about 40 hours of labor. Had to raise the license plate, french it in, split the rear bumper into 2 bumpers and much much more. Oh and there is a fuel cell in the trunk so there is no concern with the exhaust next to the fuel at all.
 
Eunos_Cosmo
Not sure I like the all matte-silver.
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Lol Its a 3 stage Epoxy primer (almost 100% waterproof like paint). I havent finished the bodywork so I havent painted the car yet.

ND4SPD
Your Camaro always gives me a slight fizzing sensation......
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If you lived close enough, I could take you for a ride. I took YSSMAN for a ride onto the track with me a few years ago. :)
 
CAMAROBOY69
Lol Its a 3 stage Epoxy primer (almost 100% waterproof like paint). I havent finished the bodywork so I havent painted the car yet.


If you lived close enough, I could take you for a ride. I took YSSMAN for a ride onto the track with me a few years ago. :)
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You ever run that car down the drag strip?
 
MEJ1990TM
You ever run that car down the drag strip?
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The last time I was at the dragstrip was in 2003. My best run in 2003 was 12.663 @ 108.7 mph and I pulled both front tires off the ground about 2-3 inches. I got bored with drag racing so I started building it into a road track / Pro Touring car.

I have much more fun running it around a track with corners. Grattan raceway is my favorite. 12 turns and many elevation changes as you can see in my video in post #304.
grattan1.jpg
 
CAMAROBOY69
The last time I was at the dragstrip was in 2003. My best run in 2003 was 12.663 @ 108.7 mph and I pulled both front tires off the ground about 2-3 inches. I got bored with drag racing so I started building it into a road track / Pro Touring car.

I have much more fun running it around a track with corners. Grattan raceway is my favorite. 12 turns and many elevation changes as you can see in my video in post #304.
grattan1.jpg
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Never raced at a road course. I've spent a lot of nights wheeling the '70 around turns late at night. In my experience you can more or less double the speed limit going around turns before things get too shakey. Basically half again the limit before you need to hit the brakes. However, there is something to be said for getting it in a straight line and running balls to the wall. At least for me anyway. First ,and only time thus far, I have gone to the drags I became hooked.
 
MEJ1990TM
Never raced at a road course. I've spent a lot of nights wheeling the '70 around turns late at night. In my experience you can more or less double the speed limit going around turns before things get too shakey. Basically half again the limit before you need to hit the brakes. However, there is something to be said for getting it in a straight line and running balls to the wall. At least for me anyway. First ,and only time thus far, I have gone to the drags I became hooked.
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Thats the best part about road courses. You get balls to the wall straight aways longer than 1/4 - 1/2 mile AND you get all the turns. Sometimes I hit 130mph on the straight. Plus there are up to 15 other cars on the track with you at the same time. And to top that off you get lap after lap after lap of it over and over again. Once you run on a road track, you will be hooked for life. It makes drag racing very boring. I drag raced for many years but a 12 second run is nowhere near the same as a full balls to the wall run, lap after lap turn after turn up and down hills for 15-20 minutes straight. I really wish you lived near so you could come along for the exerience. Its also nice competing with the brand new Vettes, Porsches, Vipers, STI's, BMW's, and everything else. By the end of the day, there isnt a single person that isnt completely exhausted. To top it off, I actually drive to each event and drive home. I dont trailer my car anywhere. Thats quite amazing for such an old car. But its also nowhere near stock besides the original suspension.
 
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I do have QA1 adjustable shocks in the rear but thats it. Havent really needed to upgrade anything else. I figure if I can pass new Corvettes, Porshes, and most of the other new modern cars, then I am doing pretty dang good with this old car. :sly:

I would eventually like to upgrade to coil overs in the front, sub frame connectors, 4 point roll bar, thicker sway bar, and 4 wheel disk brakes. Right now I have drums on the rear the really only do about 5% of the work. I do have a Hydratech Hydraboost that makes a massive difference in stopping. I cant even imagine how well my 69 Camaro would do with full disk brakes. Honestly I figure my front brakes are about 95% of my stopping power since my rear drums suck so bad. But you would not know it if you rode in this thing. So for only stock disk brakes in the front, this car stops very well. :)
 
ford_racer
There's no way you pulled the fronts with only QA1s. Whoever told you that is mistaken.
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Back when I pulled the front tires off the ground the car suspension was stock and sat much higher. I was running huge racing slicks and at the drag strip. No one told me I pulled the front tires, the video showed I pulled the front tires.
I posted the video and pics many years ago on this site showing when I pulled the front tires of the ground. Back then the car also sat much higher so the COG was higher which resulted in easier wheelies. Besides you dont need a special suspension to pop the front tires of the ground. Torque + traction = wheelie. Plus it was only 2-3 inches so its was only a little mini wheelie. :)
Whoever told you that you need special shocks or suspension to pull the front tires off the ground is mistaken. :sly:
 
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My friends bolt-on LS1, stock auto trans, stock rear end, stock wheel + Mickey E/T + 150shot Trans Am lifted a wheel last time he ran it. Runs like a 7.02 in the 1/8th with a 1.5 or 1.6 60'.
 
Exactly. Not sure what ford_racer was going on about but it doesnt take any specific or special suspension to pop the front tires off the ground if you can hook up with huge racing slicks. Especially if you have about 450lbs of torque and launch at 3,000-4,000 rpm. :lol: Plus he didnt even read my reply properly anyway.

Anyway lets get back onto the exhaust topic. I took my Camaro for a quick ride around the block. Got some compliments on the exhaust from a few people that were helping my neighbor over the weekend.
 
CAMAROBOY69
Thats the best part about road courses. You get balls to the wall straight aways longer than 1/4 - 1/2 mile AND you get all the turns. Sometimes I hit 130mph on the straight. Plus there are up to 15 other cars on the track with you at the same time. And to top that off you get lap after lap after lap of it over and over again. Once you run on a road track, you will be hooked for life. It makes drag racing very boring. I drag raced for many years but a 12 second run is nowhere near the same as a full balls to the wall run, lap after lap turn after turn up and down hills for 15-20 minutes straight. I really wish you lived near so you could come along for the exerience. Its also nice competing with the brand new Vettes, Porsches, Vipers, STI's, BMW's, and everything else. By the end of the day, there isnt a single person that isnt completely exhausted. To top it off, I actually drive to each event and drive home. I dont trailer my car anywhere. Thats quite amazing for such an old car. But its also nowhere near stock besides the original suspension.
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What are the specs on your 383? As far as power goes it must be pretty similiar to that of the '70. It ran 105 in the 1/4 with 3.31 gears.

The suspension in the '70 isn't really anything special. It has KY gas shocks, Moog bushings/ball joints/tie rod ends, and now I can't remember what springs it has. It handles pretty well for a forty year old car that weighs almost 4,000 lbs.

When I run my '71 in the 1/8 mile I probably won't trailer it. The track is probably around 25-30 miles of non-highway driving. However, when I run the 1/4 I will trailer it. That will be 90 or so miles of freeway driving. I'm not going to drive the car 90 miles when it will need race fuel, and be turning almost 4,000 RPM at 75 miles per hour. I can drive it slow, but there is still the problem of the fuel situation. The car probably won't even get 7 miles to the gallon. For now ,though, I can drive the car just about anywhere I please since it has that low compression stock cammed 350 in it.
 
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MEJ1990TM
What are the specs on your 383? As far as power goes it must be pretty similiar to that of the '70. It ran 105 in the 1/4 with 3.31 gears.

The suspension in the '70 isn't really anything special. It has KY gas shocks, Moog bushings/ball joints/tie rod ends, and now I can't remember what springs it has. It handles pretty well for a forty year old car that weighs almost 4,000 lbs.
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My 383 specs (400hp 450lb tq)
-Holley 750 Double Pumper 0-4779C
-10.5---11 compression
-keith black pistons
-clevite mains and rod bearings
-chrome molly rings
-hydrolic cam
--12250-3 comp cam extreme energy cam 240 --- 246 duration
510 lift 110 lobe separation
.50 duration
-eagle rods
-cast crank -edelbrock performer air gap intake[edl-7501]
-1970 heads194/160 valves machined for larger springs
-screw in rocker studs
-push rod guides
-rev limit 7,000rpm
-headers to 40 series flowmasters 2-1/2 in and 3" out

Rear end gears 4.11
 
CAMAROBOY69
My 383 specs (400hp 450lb tq)
-Holley 750 Double Pumper 0-4779C
-10.5---11 compression
-keith black pistons
-clevite mains and rod bearings
-chrome molly rings
-hydrolic cam
--12250-3 comp cam extreme energy cam 240 --- 246 duration
510 lift 110 lobe separation
.50 duration
-eagle rods
-cast crank -edelbrock performer air gap intake[edl-7501]
-1970 heads194/160 valves machined for larger springs
-screw in rocker studs
-push rod guides
-rev limit 7,000rpm
-headers to 40 series flowmasters 2-1/2 in and 3" out

Rear end gears 4.11
Click to expand...


Yep, pretty close. The engine in the '70 is a 10.25:1 402.

- Isky Z-45 Solid Lifter Cam (244 @.050", 278* Advertised, .530" Lift, and a 108* LSA)
- '69 063 Heads (2.06"/1.76" Valves, Isky 8009-A Springs)
- GM 163 Intake (Aluminum high rise that came on the L-78's.)
- Holley 3310 750 Vacuum Secondary (I jetted it up, changed secondary spring to short yellow spring, and changed the factory metering plate for a metering block.)
- GM Forged Rods with ARP Wave-Loc Bolts

I know the intake has rectangular ports ,and the heads are oval port, but the car runs just fine with that mismatch. I know several guys who have run that set up. At high RPM it can cause some turbulence with the air/fuel, but with the RPM this engine is running it's no trouble.

It runs pretty good for a daily driver car. A couple pages back there are a couple videos of the car running if you want to check it out. I've had a lot of people ask me if it was an LS6 car. I've heard real LS6 cars run and it used to sound exactly the same. From 1973-2010 the car had an original GM LS6 cam in it.

Haven't had it on a dyno, but estimates from the guys on Team Chevelle are between 400-425 HP. Don't know about torque.
 
MEJ1990TM
Yep, pretty close. The engine in the '70 is a 10.25:1 402.

- Isky Z-45 Solid Lifter Cam (244 @.050", 278* Advertised, .530" Lift, and a 108* LSA)
- '69 063 Heads (2.06"/1.76" Valves, Isky 8009-A Springs)
- GM 163 Intake (Aluminum high rise that came on the L-78's.)
- Holley 3310 750 Vacuum Secondary (I jetted it up, changed secondary spring to short yellow spring, and changed the factory metering plate for a metering block.)
- GM Forged Rods with ARP Wave-Loc Bolts

I know the intake has rectangular ports ,and the heads are oval port, but the car runs just fine with that mismatch. I know several guys who have run that set up. At high RPM it can cause some turbulence with the air/fuel, but with the RPM this engine is running it's no trouble.

It runs pretty good for a daily driver car. A couple pages back there are a couple videos of the car running if you want to check it out. I've had a lot of people ask me if it was an LS6 car. I've heard real LS6 cars run and it used to sound exactly the same. From 1973-2010 the car had an original GM LS6 cam in it.

Haven't had it on a dyno, but estimates from the guys on Team Chevelle are between 400-425 HP. Don't know about torque.
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Yes our engines are built with very similar specs. I am guessing yours ran in the low 13's or mid 13's since your car is heavier? I will have to check out the videos you posted.

Nope didnt have it dynoed but the time it ran at the dragstrip with the weight of the car calculates out perfectly to about 400hp 450lbs torque. Plus compared to all other strokers its almost identical in power.
 
The '70 ran 13.20's back in the late '70's. It's my dads car, I have the '71. That was running with street tires. If it has a good set of tires I'm quite certain the car will get into the 12.90's.
 
A slightly updated video with the Single Box Milltek System.



The mic still doesn't pick up just how loud it actually is.
 
Eric.
It should be. :D

Skunk2 race header, Vibrant catback. Just a resonator and muffler.
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Ricer. What's it sound like without the Vibrant muffler, that's what I wanna know. My Si sounded like absolute sex with the stock header, resonator, and no muffler. Loud and raw and just nasty.
 
Mine is already ridiculously loud on throttle. I wouldn't want to hear it without the muffler. The race header (now catless, that is) made all sorts of extra loud. My friend's Si has the same Vibrant exhaust and you can barely even hear his car when he used my GoPro. And my other friend's has a Vibrant race header and Apex'i WS2 catback. You'd think it was stock.
 

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