Test Pipe
Thread Starter
Burning Brakes
Joined: Aug 2003
Posts: 899
Likes: 0
From: Copperas Cove TX
Test Pipe
Other than being a No-No, what other problems would I run into by running a Test Pipe in place of the catalytic converter on my 86??????????
HAVE A GREAT DAY!!! :flag
HAVE A GREAT DAY!!! :flag
Team Owner
Joined: Sep 2003
Posts: 20,179
Likes: 673
From: Freedom is never more than one generation away from extinction.
St. Jude '03 thru '24
Re: Test Pipe (LoneStarSoldier)
Other than being a No-No, what other problems would I run into by running a Test Pipe in place of the catalytic converter on my 86???
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Re: Test Pipe (LoneStarSoldier)
You will get about the same performance results as with installing a very hi-flow cat.
In fact a few years a guy in FL installed a 3" dual exhaust in an '87 Vette, dual hi-flow bullet cats followed by dual FLowMasters; when he made back to back passes with the dual cats vs dual "test pipes" there was virtually no difference in time slip data. With either setup he was turning 12.0x sec 1/4 mile times.
In fact a few years a guy in FL installed a 3" dual exhaust in an '87 Vette, dual hi-flow bullet cats followed by dual FLowMasters; when he made back to back passes with the dual cats vs dual "test pipes" there was virtually no difference in time slip data. With either setup he was turning 12.0x sec 1/4 mile times.
Race Director
Joined: Aug 2003
Posts: 11,043
Likes: 3
From: San Jose Pat Tillman - American Hero
Re: Test Pipe (65Z01)
Anybody done dyno comparisons?
Also, don't neglect the difference in your *wallet* after you pay for 2 high-flow cats vs. 2 pipes. Just my 2 cents.
:flag
Also, don't neglect the difference in your *wallet* after you pay for 2 high-flow cats vs. 2 pipes. Just my 2 cents.
:flag
Race Director
Joined: Dec 2003
Posts: 11,913
Likes: 0
From: Sin City
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13
Re: Test Pipe (65Z01)
You will get about the same performance results as with installing a very hi-flow cat.
In fact a few years a guy in FL installed a 3" dual exhaust in an '87 Vette, dual hi-flow bullet cats followed by dual FLowMasters; when he made back to back passes with the dual cats vs dual "test pipes" there was virtually no difference in time slip data. With either setup he was turning 12.0x sec 1/4 mile times.
In fact a few years a guy in FL installed a 3" dual exhaust in an '87 Vette, dual hi-flow bullet cats followed by dual FLowMasters; when he made back to back passes with the dual cats vs dual "test pipes" there was virtually no difference in time slip data. With either setup he was turning 12.0x sec 1/4 mile times.
Race Director
Joined: Dec 2003
Posts: 11,913
Likes: 0
From: Sin City
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13
Re: (scorp508)
OEM Cat: 13.89 @ 98.17
Added test pipe, air pump delete, flowmaster mufflers.
Test Pipe: 13.48 @ 101.11
Added test pipe, air pump delete, flowmaster mufflers.
Test Pipe: 13.48 @ 101.11
Still, I wonder what your results would have been if ya added the air pump delete and flowmaster mufflers to your system with the cat installed :confused:
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Team Owner
Joined: Mar 2000
Posts: 83,383
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From: Boston, MA
Still, I wonder what your results would have been if ya added the air pump delete and flowmaster mufflers to your system with the cat installed :confused:
Le Mans Master
Joined: Mar 2001
Posts: 9,464
Likes: 1
From: Modesto CA
Re: (scorp508)
Well, I recently switched from Stock Manifolds/MAD PreCatLess Front Y-pipe/Random Tech Cat/Dynomax Rear Y-pipe/Muffler Eliminators....to Hooker Super Comp Long Tube's/Custom Dual 2.5" Mandrel Bent Exhaust/3" X-pipe/No Mufflers...I did 221rwhp with the old exhaust, I'll let you know what the new exhaust does. :thumbs:
