What size TB should I go with? October 12, 2005, 07:58:19 AM As some of you may have read, I'm installing the Trick Flow top end kit on the 5.0. I got the street heat intake rated for 0-5500 RPM's as an optimum runnning range. I'm going 24#'s on the injectors and was just trying to get a feel of what size TB I should go with. I'm 90% set on a 70mm. Just wanted some opinions on it..... Quote Selected
What size TB should I go with? Reply #1 – October 13, 2005, 02:35:43 AM I am leaning twoard 65,.... But after seeing that you have hit 13's you might be able to handle a 70 possibly a 75 fine. I would shoot for 70 even though I already voted for 65. Quote Selected
What size TB should I go with? Reply #2 – October 13, 2005, 05:40:49 PM 65mm....plenty big and will support lots of power....plus it will have better throttle response. Don't bother with a 70mm unless you run a blower. Quote Selected
What size TB should I go with? Reply #3 – October 13, 2005, 06:38:19 PM Quote from: The Hawk65mm....plenty big and will support lots of power....plus it will have better throttle response. Don't bother with a 70mm unless you run a blower.amen.... at least someone else said it besides me Quote Selected
What size TB should I go with? Reply #4 – October 16, 2005, 10:52:47 PM Yep....The "bigger is better" rule does not apply here because contrary to what some think, you can "over-TB" a fuelie engine to hurt low end performance... a 65mm will easily support block splitting power levels. Quote Selected
What size TB should I go with? Reply #5 – October 17, 2005, 12:50:38 PM I was running a 65,and for my modest mods,I had to go back to a 60.Much better.Perhaps after I get the GT40 heads,the 65 will go back on. Quote Selected