Size of cobra intake inlet

[sage2k]

What size is the cobra intake inlet, 70mm?

 

[wytstang]

correct 70mm

 

[sage2k]

does that make it worthless to ever get a 75mm t-body?

 

[wytstang]

Don't buy a TB based on the size of the blade (65,70,75 mm) buy them based on CFM. If your induction system can only handle x amount of CFM and you put a TB that flows double that whats the point?

 

[RIO5.0]

See this months 5.0 mag ??? At Anderson Ford they took a bone stock Fox and started from scratch modding it..First round was reaming out the intact tract and adding a 75 TB, on a stock upper, Granted they added exhaust mods / power pipe but it was all about getting air in..
I added a 75 to mine and it didnt harm it..only added a few ponies dyno wise..Youll have to port-match the opening.

 

[Grn92LX]

does that make it worthless to ever get a 75mm t-body?

Just open up the inlet with a dremel to match. The 75mm will be fine.

Back when I had a h/c/i 302 my custom cam designer (Ed Curtis) recommended I swap out my 65mm tb for a 75mm tb.

Match the tb to the inlet of the manifold, if it doesn't match port match it with a dremel.

 

[wytstang]

See this months 5.0 mag ??? At Anderson Ford they took a bone stock Fox and started from scratch modding it..First round was reaming out the intact tract and adding a 75 TB, on a stock upper, Granted they added exhaust mods / power pipe but it was all about getting air in..
I added a 75 to mine and it didnt harm it..only added a few ponies dyno wise..Youll have to port-match the opening.

Fox intakes don't have the built in EGR that we have so using them as an example if misleading. Accufab has already stated that they don't make TB for our cars. They dyno'd various TB sizes for our cars and they were unable to make anymore hp/tq then what the stock TB could due to the built in ERG. Call Accufab (considered the best TB company to date) and see what he tells you you need.