building boost

[buickruss]

Unable to build more than 1 or 2 pounds of boost at the line. Hurts the 60' time. What are you guys with stock setups able to do? Im wondering if I have an exhaust leak

Russ

 

[sabersaw30]

What kind of brakes you running and do you have a aftermarket stall?You can run some s-10 brake wheel cylinders to get some more boost on the line.What kind of tires where you trying to build boost on?

 

[BEATAV8]

here ya go:


PTC converter and PT6776RH turbo. No header leaks!

 

[buickruss]

Stock brakes.
MT275/60-15 in the rear

The week before I could get 5 PSI at the line. 60' time in the 1.8 range. No other changes and the car seems to run the same. only thing different is now I cant build as much boost

 

[sabersaw30]

here ya go:


PTC converter and PT6776RH turbo. No header leaks!

Wow was that on the foot brake?

 

[pajo]

boost

if the car runs the same then maybe your boost gauge is kaput ..?

 

[BEATAV8]

Wow was that on the foot brake?

Yup. Good old powermaster. S10 rear wheel cylinders too.

 

[buickruss]

beatav8,
thats impressive. whats the stall on your converter? 10 inch?

 

[BEATAV8]

beatav8,
thats impressive. whats the stall on your converter? 10 inch?

It's a 9.5" PTC 17-27. It stalls at a tad over 2800 at 0psi. 17-27 refers to the blade counts.