hink

Because, sometimes to much boost is a bad thing if ur not equipped to run high boost #'s.

high bid

Pinched the hose but didn't notice any boost differences just driving around tonight. Are the higher boost #s noticed in towing or WOT? Any ideas?

Maybe because I used Vice-grip not Matco tools.

displacedtexan

Because you don't have a boost fooling box. The computer is not giving you enough fuel to build more boost. It is set to not let you get over a certian level. Fuel=Boost...

Hammer

Since no one has asked the question that should have been asked first I will...

How much boost are you currently seeing with your setup being the fact you have a Quad Box and intake?

Then I will tell you IF your seeing at or around 40psi on a HX35 or a HY35 you do not want anymore with that charger.Once you cross the 40lb threshold all you do is create heated air which is not what you want..........Andy

displacedtexan

I didn't catch the Quad box. I'm with Andy, you prob have all the boost you need.

high bid

ok, thanks. Then I guess my thoughts here would be correct.
cheap route = boost fooler
expensive = smarty, quad, edge

displacedtexan

I'm pretty sure all the Quad boxes do boost fueling...

99silverstreet

no i have the xzt+ and i didnt have boost fooling....i have no idea my pressure now i have sense moved to stage 4 injectors and superchips... i dont kno my pressure but when i clamped my turbo hose it didnt do crap...and i cant find a boost fooler for a 99....i have also heard that putting on another lift pump will raise my pressure up too...any ideas???

hink

The XZT+ does boost fooling, even when it's turned off, it still does boost fooling. No need to put on another boost fooler.
Boost fooling or a boost fooler does not raise your boost, it only fools the computer into thinking there's less than 21psi (i think) of boost so the computer doesn't de-fuel the engine. If you want more boost, you need more fuel or a wastegate modification.

hink

Ahhh, never mind. I see you have a Superchips now. Anyway, the XZT+ does do boost fooling. Here's a boost fooler for your 99. http://www.dieselperformance.com/ind...oduct/index/8P

99silverstreet

yea now it does boost fooling wheni had the xzt+ it had jus come out and there was only like 3 updates on the web....now they like 30 i wish i would have kept it i was a good chip....i was going to get the adrenaline....but there was no point i could never have turned it up all the way...i dont really have the money to put in my truck....i jus do lil mods to help mileage and blow some smoke and thats about it....but thanks for all the help.....

Krob

From the begining they had boost fooling. With my almost stock truck with XZT+ and a boost elbow i can get 35psi of boost if i adjust it all the way in.

The hx 35 loses efficency at 35psi so you dont want to go over that.

Katmandu

How does one adjust it for max boost ?

.

Big Blue24

Screw the screw in all the way for maximum boost. What this does is limit the amount of pressurized air that can travel down the silicone hose to the wastegate head. When the wastegate head gets 20 psi or so, it pushes out the rod that is directly connected to a metal coin shaped puck. When this puck opens, exhaust is allowed to bypass the turbine and thus the turbine slows a bit.

Slower turbine = slower compressor. Slower compressor limits boost pressure.

When a guy puts vice grips on the silicone hose, they allow zero pressure to the wastegate head, and thus the rod doesn't move, the puck stays shut, and all exhaust pressure is pushed through the turbine wheel. As turbine spins faster, so does the compressor wheel. All of this equates to more boost.

fmxr47

the easiest way is to take off the fitting and drill an tap it and install a set screw, i did mine in an hour, and w/ my box and injectors im right at 35 and it some times peaks to 40 but i try to keep it at 35