i know that the pulley size determines boost psi but is there any way to lower your boost without resorting to a bigger pulley?

my friend, pretty good fab guy, fabricated his own custom mounts or bracket to mount a supercharger from one of those superchared t birds. it mounts in the front in front of the header bolted to the block running off the crank pulley i believe. anyways

his car is boosting like 22psi or something like that. he wanted to know if theres like a device that can bled off excess boost. kinda like a wastegate to bleed off exhaust to lower boost, something like that but for a suoercharger??

 

blow off valve i believe can do this, i forgot how they have to be setup tho. kinda acts like a wastegate, but in the intake track instead of the exhaust

 

if he set the car up to 22 psi with pullies.... yes, he can lower the boost levels with a boost controller.

but if you are at 15 psi, you can not RAISE boost levels to 20 psi using a boost controller. unless he has the 20 psi pulley system in place, and lowered boost.

does that make sense?


ask how to make on in this thread..... i believe RmcDaniels made a boost controller for a supercharged honda.

https://honda-tech.com/zerothread?id=1214810

 

How did he get around the T-bird M90 blower being a CW blower on a CCW Honda motor?

 

that's what i thought too, but i then remember you posting a ccw kit. so i figured thats what he used and didnt want to question it.

 

he didnt do anything or use a kit, the supercharger spins ccw