Hello all !
I have a 24 tudor with a standard holley nh and would like to know what difference a straight through nh carb would be in performance ?
Thanks. Ken
carburetor ?
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- Posts: 6435
- Joined: Sun Jan 06, 2019 11:18 am
- First Name: Scott
- Last Name: Conger
- * REQUIRED* Type and Year of Model Ts owned: '13, '15, '19, '23
- Location: Clark, WY
- Board Member Since: 2005
Re: carburetor ?
The straight through will in all likelihood be slightly harder starting, which will be invisible on a starter-equipped car, and has the potential to provide performance improvement that spans from negligible to modest. A properly rebuilt swayback standard NH will run rings around a poorly or improperly rebuilt straight-through carb, so just swapping carbs is not a certain path to a hotrod. My statement above regarding performance assumes two carbs equally properly rebuilt and adjusted correctly. The straight-through will be far less forgiving of a faulty float level and in my opinion, performs/starts easiest if the float is set to the high side.
compare "swayback NH" to "straight-through" CFM measurements: http://www.mtfca.com/discus/messages/41 ... 1417982157
compare "swayback NH" to "straight-through" CFM measurements: http://www.mtfca.com/discus/messages/41 ... 1417982157
Scott Conger
Tyranny under the guise of law is still Tyranny
NH Full Flow Float Valves
Obsolete carburetor parts manufactured
Tyranny under the guise of law is still Tyranny
NH Full Flow Float Valves
Obsolete carburetor parts manufactured
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Topic author - Posts: 18
- Joined: Sun Jan 06, 2019 1:26 pm
- First Name: kenneth
- Last Name: bechtel
- * REQUIRED* Type and Year of Model Ts owned: 1924 tudor
- Location: PA.
Re: carburetor ?
Thanks Scott for the reply! At this point i think i'll leave it the way it is . the car runs so great. has probably the most power a stock t can have. spark plugs are burning light brown and no oil on them. BUT! For the life of me i don't have the cold start up figured out using the hand crank. I don't think there is a carb issue ' it will start instantly with the electric starter when cold so it must be something i am doing wrong
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- Posts: 1056
- Joined: Thu Feb 21, 2019 1:20 pm
- First Name: Joe
- Last Name: Bell
- * REQUIRED* Type and Year of Model Ts owned: 24 Fordor
- Location: Tiffin Ohio
- MTFCI Number: 24066
Re: carburetor ?
My experiance on them is they are harder starting, cold hearted but if you are on the high end of performance they do increase a little bit, The OS stromberg was more of an improvement but did not want to spend the big money to get rid of the sinus drip it had.