6.5td turbo overboosting?
#1
6.5td turbo overboosting?
heres the question. i have a 94 6.5 td which is all stock to my knowledge with the exception of a mandrel bend crossover, 3in down pipe to a 4in stack, and a pod filter. i run somewhere around 18 to 19psi at full throttle. from what i've read, this is a tad bit over stock. Is my factory boost controller not regulating the pressure? or is it chipped? thanks for any help.
#2
a stock 6.5 turbo is supposed to push anywhere from 7-9 under decent amount of acceleration and 1-3 while cruising around 60. Maybe check a wastegate accuator just to see if it is stock. Also the solenoid and vacuum pressure. a larger wastegate would most definitly allow more boost. But chances are it wouldnt last very long untill lag started to build. Although on a electronic 94-95 you need a power chip to raise boost and add fuel. unlike the 92-93's you could jsut adjust the manual injection pump.. so if i had to guess it is chipped. i would definitly look into that before your start messing stuff up which could cost big bucks..
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do you have access to a tech 2 scan tool. you can tell how much fuel the truck is requesting. max limit on stock egr equipped trucks is 56mm3 of fuel and i think f code trucks are 68mm3 or something like that. how do you regulate boost with vaccum system hooked up without messing with the computer
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