Go Back   Corvette Forum > C3 Corvettes, 1968 - 1982 > C3 General
Sign in using an external account
Register Forgot Password?
Register Search Today's Posts Mark Forums Read FAQ Vendor Directory
Search
C3 General
General C3 Corvette Discussion not covered in Tech Sponsored by
Corvette America

Welcome to Corvetteforum.com!
Welcome to Corvetteforum.com.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, join Corvetteforum.com today!


Corvette Store
 
 
C7 Parts & Accessories
C6 Parts & Accessories
C5 Parts & Accessories
C4 Parts & Accessories
C3 Parts & Accessories
C2 Parts & Accessories
C1 Parts & Accessories
Wheels & Tires
Sponsored Ads
 
 
Vendor Directory
  
Reply
 
 
 
 
Thread Tools Search this Thread
Old 01-16-2011, 06:34 PM   #1
sbranscum
Junior Member
 
Member Since: Jan 2011
Location: Wexford PA
Default The difference between the tri power and regular carbs

Hey, I have notice that on some vette engines I see there is the triangle carb that says "tri" power and some are just regular round carbs. Was the tri power carb an option?
sbranscum is offline   Reply With Quote
Old 01-16-2011, 06:36 PM   #2
Gordonm
CF Senior Member
 
Gordonm's Avatar
 
Member Since: Dec 1999
Location: Voorhees NJ
Default

It was 3 2 barrel carbs vs 1 single 4 barrel carb. Used on some high performance 427 engines.
Gordonm is offline   Reply With Quote
Old 01-16-2011, 07:08 PM   #3
427SIXPACK
CF Senior Member
Support Corvetteforum!
 
427SIXPACK's Avatar
 
Member Since: Nov 2001
Location: LONG ISLAND
Default

..........The difference is a lot more tuning & a lot more money
__________________

...
.........
ZIXXX PACKER
427SIXPACK is offline   Reply With Quote
Old 01-16-2011, 08:32 PM   #4
a560156
CF Senior Member
 
Member Since: Aug 2004
Default

The carbs are not in the shape of a triangle, but rather the air cleaner assembly.
a560156 is offline   Reply With Quote
Old 01-16-2011, 11:57 PM   #5
thatcorvetteguy
CF Senior Member
 
thatcorvetteguy's Avatar
 
Member Since: Jan 2010
Location: Rexburg Idaho
Default

Tri-power was a option on 400 and 435hp 427's in 68 and 69 C3's. Or if you ordered the 400,435 hp you got a Tri-power
thatcorvetteguy is offline   Reply With Quote
Old 01-17-2011, 03:35 AM   #6
WESCH
CF Senior Member
 
WESCH's Avatar
 
Member Since: Feb 2001
Location: Europe , Luxembourg
Default

Hi

Tripowers are a great setup and tuning is rather easy. Really it is only a question of correctly adjusting the linkage.
Tripower are cool looking and last but not least are the carb with the best fuel economy when driving correctly, but with fire and lots of power if required.
This because the primary carb ( center ) is rather small designed, hence regulating a correct fuel/air mixture in low RPM ranges and if required, you add 2 ea secondary carbs and open the breath right up.

Best carb for my 68 BB I drove and I tried 650, 750 and 850 DB B4.

Click the image to open in full size.

Rgds. GŁnther
WESCH is offline   Reply With Quote
Old 01-17-2011, 06:54 PM   #7
Alan 71
CF Senior Member
 
Alan 71's Avatar
 
Member Since: Sep 2006
Location: Westminster Maryland
Default

Hi,
From the very beginning Corvettes have often had multiple carbs.
Even the original 53/54/55 6 cylinder motors had 3 carburetors. Then for a few years there were optional engines with 2- 4 barrel carburetors (56-60?). In the mid-sixties 3-2 barrel set-ups became popular (GTO, Ford, Dodge, Plymouth cars) so along came the 435 hp cars with 3-2 barrel carbs.
Regards,
Alan
Alan 71 is online now   Reply With Quote
Old 01-18-2011, 12:30 PM   #8
Beefstick1
CF Member
Support Corvetteforum!
 
Beefstick1's Avatar
 
Member Since: Dec 2010
Location: Biloxi Mississippi
Default

I have the 6 pack set up on my 69 vette and 69 GTX and I love them. Power and fuel economy.
Beefstick1 is offline   Reply With Quote
Old 01-18-2011, 12:36 PM   #9
Easy Mike
CF Senior Member
Cruise-In II Veteran
Support Corvetteforum!
 
Easy Mike's Avatar
 
Member Since: Jun 2000
Default

Quote:
Originally Posted by sbranscum View Post
...Was the tri power carb an option?...
Want some interesting reading? Purchase one or two of the Corvette coffee table history books and read through them. All the various engine options will be discussed and there will be thousands of pics.

Easy Mike is offline   Reply With Quote
Old 01-18-2011, 12:49 PM   #10
Faster Rat
CF Senior Member
 
Faster Rat's Avatar
 
Member Since: May 2009
Default

Quote:
Originally Posted by Alan 71 View Post
Hi,
From the very beginning Corvettes have often had multiple carbs.
Even the original 53/54/55 6 cylinder motors had 3 carburetors. Then for a few years there were optional engines with 2- 4 barrel carburetors (56-60?). In the mid-sixties 3-2 barrel set-ups became popular (GTO, Ford, Dodge, Plymouth cars) so along came the 435 hp cars with 3-2 barrel carbs.
Regards,
Alan
In '66 and '67 the Olds 442 also had three deuces as an option. I was working in a gas station and an elderly customer with a '66 tri power was complaining about his gas mileage. My brother had a '66 with a four barrel so I offered to switch intakes even up. If I remember, the carburetor linkages were progressive mechanical, nothing to do with vacuum. Afterwards my brothers car was a little faster at the strip.
Faster Rat is offline   Reply With Quote
Old 01-19-2011, 02:10 PM   #11
srs244
CF Senior Member
St. Jude Donor '09-'10-11-'12-'13-'14
Support Corvetteforum!
 
srs244's Avatar
 
Member Since: Sep 2005
Location: hollywood florida
Default

Quote:
Originally Posted by 427SIXPACK View Post
..........The difference is a lot more tuning & a lot more money
and it is the difference between having 3 carbs (with 2 barrels each) vs a 4 barrel single carb as mentioned
srs244 is offline   Reply With Quote
Old 01-19-2011, 02:42 PM   #12
Easy Mike
CF Senior Member
Cruise-In II Veteran
Support Corvetteforum!
 
Easy Mike's Avatar
 
Member Since: Jun 2000
Default

Quote:
Originally Posted by srs244 View Post
and it is the difference between having 3 carbs (with 2 barrels each) vs a 4 barrel single carb as mentioned
And an extra 300cfm. Doesn't the tri-carb set up flow about 1050? Q-Jet about 750?

Easy Mike is offline   Reply With Quote
Old 01-20-2011, 07:31 AM   #13
Beefstick1
CF Member
Support Corvetteforum!
 
Beefstick1's Avatar
 
Member Since: Dec 2010
Location: Biloxi Mississippi
Default

I believe the 68 set up on tri power had all 3 carbs at 350cfm for a total of 1050. On my 69 GTX, the center carb is 385 and the 2 outboards are 500 each for a total of 1385 but that does not make it faster than the Vette.
Beefstick1 is offline   Reply With Quote
Old 01-20-2011, 09:31 PM   #14
Go Vette
CF Senior Member
 
Go Vette's Avatar
 
Member Since: Oct 2007
Location: Penfield NY
Default

From these posts it sounds like the tri-carb setup was pretty good, not to mention cool looking. So why was it not used after the 60s?
__________________
'75 L-82
Go Vette is offline   Reply With Quote
Old 01-20-2011, 10:28 PM   #15
Tally Ho
CF Senior Member
Support Corvetteforum!
 
Tally Ho's Avatar
 
Member Since: Jul 2000
Location: Out Where the Buses Don't Run, Eglin AFB/ Niceville FL
Default

Quote:
Originally Posted by Go Vette View Post
From these posts it sounds like the tri-carb setup was pretty good, not to mention cool looking. So why was it not used after the 60s?
Emissions and fuel economy caught up to the three deuces. You could still get a 440 six barrel in a 71 'Cuda and the 340 six barrel in the 70 Challenger T/A and AAR 'Cuda. I think the six pack died along with the muscle car. 1972 was the beginning of the end.
Tally Ho is offline   Reply With Quote
Old 01-21-2011, 02:28 PM   #16
7T1vette
CF Senior Member
 
7T1vette's Avatar
 
Member Since: Jan 2006
Location: Crossville TN
Default

EFI eliminated the need for carburetors. Carbs attempted to manage fuel flow efficiently throughout the range of engine use; some did better at it than others. A tri-power setup which operated mainly on the center carb with mechanical kick-in on the outer carbs at WOT was economical and powerful. For a carbed engine (which needed that much airflow), tri-power was a great option but was much more expensive than a single 4-barrel carb.

EFI and electronic controls made carbs obsolete (except on vintage cars, of course).
7T1vette is offline   Reply With Quote
Old 01-21-2011, 11:02 PM   #17
427SIXPACK
CF Senior Member
Support Corvetteforum!
 
427SIXPACK's Avatar
 
Member Since: Nov 2001
Location: LONG ISLAND
Default

Just try one...........you will be HOOKED forever, there is NOTHING like a 427 with TRIPS.... NOTHING !!!


Click the image to open in full size.
427SIXPACK is offline   Reply With Quote
Old 01-22-2011, 11:35 AM   #18
7T1vette
CF Senior Member
 
7T1vette's Avatar
 
Member Since: Jan 2006
Location: Crossville TN
Default

Well....I once had a '65 Pontiac Catalina/Ventura with a 421 HO tri-power engine that would stay with the 427's pretty well.... (but it was still a tri-power!)
7T1vette is offline   Reply With Quote
Old 01-22-2011, 11:44 AM   #19
jaxlt1
CF Senior Member
Support Corvetteforum!
 
jaxlt1's Avatar
 
Member Since: Dec 2002
Location: North Brunswick NJ
Default

Couldn't agree more. Bling with CLASS.

Click the image to open in full size.
jaxlt1 is offline   Reply With Quote
Old 01-22-2011, 11:44 AM
 
Go Back   Corvette Forum > C3 Corvettes, 1968 - 1982 > C3 General
Reload this Page The difference between the tri power and regular carbs
 
 
 
Reply

Tags
1968, 32, 421, 427, barrel, carb, carbs, corvette, efi, horsepower, outer, power, set, tr, tri, tripower, tuning


Thread Tools Search this Thread
Search this Thread:

Click for Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Fs '69 tri power carbs markmywords C3 Parts for Sale/Wanted 1 12-26-2012 08:05 AM
tri power power valve markhperry C1 & C2 Corvettes 2 12-17-2012 06:17 PM
Tri-Power Carb Date Codes solotex55 Factory Correct Resto 4 10-23-2012 07:28 PM
Fuel Leak where lines connect to Carbs Peter O'Connor C3 Tech/Performance 5 10-19-2012 06:59 AM
427 Tri-Power carb questions Corvette Kiwi C3 Tech/Performance 4 10-06-2012 11:09 PM


All times are GMT -4. The time now is 05:33 PM.


Emails & Password Backup