'87 5ktq low boost issue

[E. Roy Wendell IV]

Cody,

As I understand it, the MC1 boost system isn't closed loop control so  
just installing a chip doesn't result in increased boost. Rather, it  
allows for increased boost by raising the cutoff point and increasing  
the mixture control duty cycle. The boost map is simply a lookup  
table of rpm and the related duty cycle, not a boost target. It was  
designed to flatten the torque curve and avoid too much boost at the  
max VE point for the engine and thus avoid detonation.

So my point is, maybe you are experiencing normal operation for this  
mod? AFAIK this is why MC1 boost mods are usually a chip and spring   
combo. I realize you have boosted the heck out of the MC1 in the past  
but I recall that you were using some sort of air bleed valve at the  
time.

Roy Wendell
erwendell at mac.com
Too many type 44 tq
A pair of MR2s