What size TB for carb intake w/elbow?
 

What size TB are you using on your 4bbl intake with elbow? I will be running an Edlbrock efi intake w/ elbow. The engine will mostly be street driven. (see sig) Havent decided yet on cam ( I was thinking 224-.580-114 )

Would a 90mm be too large??? Ant suggestions would be apprecited!

Thanks - Ron

running a stock ported TB wouldnt hold you back from anything, i`m going to put N/W 90mm TB with l92 carbed intake

I was thinking fo a Nick Williams TB, but I can only find 90mm's. I was also thinking of running a FAST 78mm TB. I guess what I want to know is will the smaller TB be better on the street? As far as throttle response, and/or touchiness??? What is everyone else running?

Thanks - Ron

Im running a Accufab 90mm TB.

Kyle

90mm Nick Williams here :burn:

How much street driving you do? How touchy is the thottle with a 90mm? Any tunning issuse with that size TB?

Anyone running a 1000-1300cfm 4 bbl TB? Pro's/ Con's???

Thanks - Ron

I am running a 90mm NW TB and an LS2 intake.

I agree.....although odd to read you arent sticking with stock size ??



FWIW, I switched from a stock LS6 intake and DIY ported TB, to a Carb intake, elbow and 85mm Accufab ( Ford ) TB....

I made fractionally more boost with the carb intake than I did with the LS6...go figure.

Stock TB flows enough for 1000+ in boosted form, that has been proven.

And given most plumbing is circa 3" OD....really, is there any need for a TB much larger than this ????

If most of the IC plumbing is 76mm OD, especially that leading up to the TB....what benefit can a 90mm TB offer ? ( the blade doesnt take up that much area )