I am using the 747 Computer, and using a stock 350 chip with the EGR disabled. When the vehicle is first started up from dead cold, it runs great, but about the time when it is warmed up all the way, it starts to bog when I accelerate. It bogs from about 3kRPM to about 3.7kRPM. After it gets past the bog, and starts running right again, it will break the tires loose. Anyone got any ideas? A freind keeps telling me it is due to FP, but I have messed with the regualtor, going from max output, to min output, to everywhere in between, and no difference in the situation. I would think if it can supply my motor with enough fuel for 6000RPM WOT operation, that FP would not be the cause for low throttle bog? any ideas?

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69 Chevelle 2dr hardtop blue, bench seats, 12 bolt w/3.73's muncie 4 speed. best 14.5@90

 

BTW 350 stock headers OE Aircleaner 4bbl intake with adapter.

 

my guess is that there is a really flat spot in your VE tables that is totally messing with your DC's. do you have a scan tool hooked up? if so you can hammer on it & watch the DC's & see if they are increasing with the R's. if they take a dive (or large jump & back down), you might be able to watch what is going on. I am using DataMaster & after a day @ the track, i go though every run one frame @ a time & watch waht the motor is doing. It takes a ton of time but It is very intersting to me to see what the motor does by the milisecond as it goes down the track.

hth's
BW

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Bobalos
aka Bob W.
www.r71camaro.homestead.com
r71chevy@earthlink.net
<><

 

You'll have to balance things real well to get a TBI to pull cleanly to 6K.
You'll also need at leas the cop car injectors, and probably the BBC ones. Also a 2" butterfly TB.
From the sounds of your letter, I guestion do you have a chip burner?.

 

Yes, I do have an Eprom burner, and My car pulls very hard when not bogging. It does pull to 6kRPM as I am watching my tach. O was using the high RPM reference so that maye you guys could point out if my motor was starving because of programming, or not enough injector or pressure. When I shift at WOT 5500RPM, the tires break loose for about 1.5 sevonds(245/60's) I am thinking that is the psyical fuel system can operate good at WOT at that high RPM, then delivering a high ammount of fuel should be possible for 3500, and so on?

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69 Chevelle 2dr hardtop blue, bench seats, 12 bolt w/3.73's muncie 4 speed. best 14.5@90