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Product Test Results
Dyno and DBA Sound Tests
JCL79383
  
9/9/2001
  15' side test-81dba's; 30' side test-76dba's; 50' side test-72dba's
15' rear test-78dba's; 30' rear test-77dba's; 15' front test-74dba's
30' front test-71dba's; inside windows up-76dba's
All these tests were taken at idle of 1000 RPM's 		 
Rick
68 "434"BB- Original test Vette for the Baffles
9/17/2001
  15' side test-79dba's; 30' side test-74dba's; 50' side test-70dba's
15' rear test-73dba's; 30' rear test-68dba's; 15' front test-72dba's
30' front test-68dba's; inside windows down-75dba's
The above tests were taken at 1000 RPM's
30' at 2500 RPM's free rev.-86dba's
 
Bill VanOrman

Carmel, NY
Testing done by: Romar Enterprises, Walden,NY
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
1/5/2002
  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.
This particular engine needs more cam and head work, suggested by Romar, Ent. after testing was complete. Romar felt with these modifications, getting power in the 550+ range would not be difficult.

These tests are indications what can be achieved by using Spiral Turbo Baffles. Your results will differ depending on the engine, and the amount of modifications. This 502 is basicly a stock engine. If you have more questions about the tests results, get in touch with Steve, at Romar Enterprises 1-845-778-2737, or Spiralturbobaffles.com

Picture 1   Picture 2
Dyno Sheet for this car (caution: large download)

 

 Brock Landers

Strongsville, OH

 Car: 1966 Corvette Engine: 502 Stroked BB, 600+hp. STS sidepipes and baffles (3.5") under factory covers 10/11/2002
  750  RPM's with caps                                    85-86 db's
                    without caps                               87 db's
                    without caps tips turned down     87 db's
2000 RPM's with caps                                   94 db's
                    without caps                               98 db's
                    without caps tips turned down     95 db's		 


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