Powervalves in Turbo XP

[swrev]

Having a problem w/ my turbo XP.

My sled had block off plates instead of powervalves. I purchased a set of stock powervalves and installed. My sled struggles to get over 5500 rpm now. If I just hold the throttle wide open, it will eventually get through it. The only other thing I changed so far is changing my reference for the fuel pressure to the center section of the pipe. How do I test the solenoid setups or does anyone have any idea of what might be going on?

Just as a note, the sled ran fine when I pulled it into the garage w/out issues. Problem was immediate when I went to do a test run. May pull out the valves tonite just to make sure that is where my problem is coming from.

 

[NITROSKIDUDE]

Having a problem w/ my turbo XP.

My sled had block off plates instead of powervalves. I purchased a set of stock powervalves and installed. My sled struggles to get over 5500 rpm now. If I just hold the throttle wide open, it will eventually get through it. The only other thing I changed so far is changing my reference for the fuel pressure to the center section of the pipe. How do I test the solenoid setups or does anyone have any idea of what might be going on?

Just as a note, the sled ran fine when I pulled it into the garage w/out issues. Problem was immediate when I went to do a test run. May pull out the valves tonite just to make sure that is where my problem is coming from.

I am thinking you hooked the nipples of the new powervaulve bodies to the solenoids. If so that is where you went wrong
First did you cut a bit out your gasket to allow engine pressures to regulate the piston actuator. Second dont hook up the solenoids they are eliminated.
The nipples on the housing is to release residual oils from the vaulve assembly that is blowby from the motor run some hoses to the bottom of the motor compartment from the housings, so you don't make a mess all over the motor.

 

[swrev]

I am thinking you hooked the nipples of the new powervaulve bodies to the solenoids. If so that is where you went wrong
First did you cut a bit out your gasket to allow engine pressures to regulate the piston actuator. Second dont hook up the solenoids they are eliminated.
The nipples on the housing is to release residual oils from the vaulve assembly that is blowby from the motor run some hoses to the bottom of the motor compartment from the housings, so you don't make a mess all over the motor.

Thanks for the response, but wouldn't this apply only if running the STM valves? Going to take the valves out tonite, just to make sure that the valves are the problem. Sled just struggles to transition into higher rpm-had an issue one other time when I had a reference line to one of the carbs blow off, but this is acting differently and all of my lines look like they are intact.

 

[NITROSKIDUDE]

Yea sorry my bad I didnt notice you said stock before.

 

[swrev]

Fixed it. I was too anxious to try the powervalves and just bolted them in the other day. Took the covers off and gave the sled some rpm-no powervalve movement what so ever. All the hoses were hooked up. Looked closer at the left side powervalve. The rubber diaphragm/bellow was completely undone from the disk the blade screws into. Can't believe I didn't notice when I was installing.

Huge difference in bottom end response. Felt like I could've clutched for a faster response than I had before, now I just want to go ride it!!

 

[Bendy]

Yeah

Not having the exhaust valves just flat out sucks. You'll love the Turbo way better now!