rm9792

Idle is around 12-1300 now. Does it need to adjust itself via computer? I dont have a tuner or any other mods yet. Predator is enroute.

Nuke

I don't think you can run a BBK w/o a tune and not run lean. What TB did you install? That combo w/o a tune may be giving your PCM fits.

rm9792

BBK claims it doesnt need a tune. i used the BBK 62mm TB. I put about 100 miles on it yesterday with 89 octane. When you let off the gas it sometimes takes a while to idle back down and usually stays at 1200 for a few seconds. it then drops to 800 or so. Could the TB just need to "break in"? Is it sticking? No CEL's or other issues. Exhaust (H-Pipe and FlowMasters) sounds mean as hell though!

hottymustang

You don't need to have a tune with the BK TB. It will idle a bit higher because it is bigger than your stock TB. I wouldn't worry about it; especially if you have a tuner on the way. You can just set your idle rpm when you tune.

rm9792

Its starting to stick a little around 2k now. Can I drill a new hole for the Spring to ride in to increase the tension slightly? Woudl that be too much for the motor or jack with the computer any?

crazyray78

I had the same thing happen with my BBK CAI and TB. I bought it and the SCT X3 tuner package from brenspeed, but I tried driving it around without installing the 89 tune first. When I loaded the tune up, My idle speed went back to about 7-800 rpm [normal] range. JMO, but I would say, get a tuner for it regardless of what they say about no tune required. You have a performance part, compliment your purchase with the tuner. To me there was a noticable difference in the overall feel of the power from the new tune versus just the CAI. Crisper throttle response, more power, etc. Beside, eventually, when you add more stuff, a tune will be required anyway. So get the flash tuner part out of the way now.

rm9792

I ordered a Predator the next day but it isnt here yet so I will hold off till I get the tune and hope it fixes it, thanks.

EagleStroker

Take it from me, take that TB, remove it, and enjoy that most expensive paper weight you'll ever own

07musclemustang

ha yeah our factory TB is good for up to 400 hp plus and the bbk you may even loose some power.. sad but true. get your tuner installed and then go from there