HEADERS-SIDEPIPES-connected
Race Director
Joined: Jun 2000
Posts: 10,037
Likes: 668
From: FL
Jet Hot coated with Spiral Turbo Baffles. I just polish them with Mother Billet polish when I do my wheels.
The Hooker mufflers will rob you of power. You end up with a 4" pipe with a 1 7/8" (I believe) passage. Can you say restriction?
www.spiralturbobaffles.com
From the site:
Car: 1969 Corvette Engine: GM 502BB, Iron rectangular port heads, hydraulic cam/220 duration@.050 and .500 lift, 8.75 to 1 compression, low rise LS6 intake, holley 750 double pumper carb, and Hooker Sidepipe Headers. Tests are RWHP figures
Base: Mufflers, HH reverse flows. 246.7 HP/388.9 torque.
2nd pull: Mufflers/ baffles, Spiral Turbo Baffles (4"). 338.5HP/408.8 torque. An increase of 92HP and 20Lbs. Ft. of torque.
3rd test: Sidepipes, no mufflers or baffles. Wide open tubes. 342.4HP/445.1 torque. Thats a high bolt on increase.
The Hooker mufflers will rob you of power. You end up with a 4" pipe with a 1 7/8" (I believe) passage. Can you say restriction?
www.spiralturbobaffles.com
From the site:
Car: 1969 Corvette Engine: GM 502BB, Iron rectangular port heads, hydraulic cam/220 duration@.050 and .500 lift, 8.75 to 1 compression, low rise LS6 intake, holley 750 double pumper carb, and Hooker Sidepipe Headers. Tests are RWHP figures
Base: Mufflers, HH reverse flows. 246.7 HP/388.9 torque.
2nd pull: Mufflers/ baffles, Spiral Turbo Baffles (4"). 338.5HP/408.8 torque. An increase of 92HP and 20Lbs. Ft. of torque.
3rd test: Sidepipes, no mufflers or baffles. Wide open tubes. 342.4HP/445.1 torque. Thats a high bolt on increase.
Instructor
Joined: Feb 2005
Posts: 163
Likes: 0
From: Newington CT
Originally Posted by startwith80vette
you bet
I was looking around at stainless true duals for a new engine I'm dropping in....screw that! I know what I'm doing now...
Melting Slicks
Joined: Feb 2004
Posts: 2,435
Likes: 0
From: largo florida
Originally Posted by startwith80vette
yeah, i didnt have to trim the rocker panels at all, they were a bit of a pain to slip back behind the pipes but easy enough to screw back in, im running the hooker glasspacks, which i rush ordered after i started the car with open pipes thinking it wouldnt be "too" loud, it was, i like how the glasspacks, they have a nice tone
Advanced
Joined: May 2005
Posts: 64
Likes: 1
From: CA
Is Mid America the only and the least expensive source for these systems?
Are they available in plain steel? They seem pricey, but by the time you buy hooker headers and a full exhaust system, they aren't that much more...
George
Are they available in plain steel? They seem pricey, but by the time you buy hooker headers and a full exhaust system, they aren't that much more...
George
Race Director
Joined: Jun 2000
Posts: 10,037
Likes: 668
From: FL
Originally Posted by 71Sunflower
Is Mid America the only and the least expensive source for these systems?
Are they available in plain steel? They seem pricey, but by the time you buy hooker headers and a full exhaust system, they aren't that much more...
George
Are they available in plain steel? They seem pricey, but by the time you buy hooker headers and a full exhaust system, they aren't that much more...
George
For plain, go to Summit Racing or Jegs.
For coated, go to Jet Hot and take advantage of their Corvetteforum discount.
