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Helpl Boost Prob

Pottsy12

By Pottsy12,
in Engines & Forced Induction

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Rolls Grand Master

Rolls

Posted
Posted

Wait... Something is wrong then, I think mine will even open gate on high boost in 1st gear! That's 26psi :)

Will test with some videos tonight and see what I actually get.

probably starts to crack the gate but no way 26psi haha, I'd say 15 ish absolute max.

SimonR32 Grand Master

SimonR32

Posted
Posted

Shit I forgot to test!

Yeah might not hit that much, really depends on trye grip as well... If it wheel spins your not going to be as much boost, if you launch of limiter with drag slicks I'd imagine it would a lot of boost fast :)

Will try and remember again tonight haha

Harey Veteran

Harey

Posted
Posted

Yes but I was giving an example of how the turbo behaves respective of load. Not wether or not it will stay consistent if it reaches it's boost level. I felt it was a better example then saying you won't hit target boost in neutral (unless maybe your on limiter) as opposed to flat to the floor in third. The hill thing was just an easier comparison of load.

OP: read the manual to see if what I have said in my last post is in there and if it says the reason behind doing that mod. Might be for boost creep rather then your problem I forget. Otherwise I'd try putting stock parts bak on to trial (BOV and boost solenoid mainly) if it starts working then it will show you your problem

Yup sorry, I agree with what your saying just didnt want people to expect different boost levels in different gears with a well setup actuator/boost control system. You are 100% correct its easier to build boost with more load.

SimonR32 Grand Master

SimonR32

Posted
Posted

probably starts to crack the gate but no way 26psi haha, I'd say 15 ish absolute max.

Got 1.38bar on the first attempt and 1.43bar on the second... Will upload the video when I have time :)

Don't know how people are only getting 0.3bar in first with a GT30, something must have been wrong!

SimonR32 Grand Master

SimonR32

Posted
Posted

20psi, in first gear with a GT30 on a RB25?

ok. Now I have seen it all.

Post a video or I call 110% bullshit.

yeah good call......

the only that you be possible is if you had the hand brake on to load it up :rofl2:

I could make a max of 5psi in first, nothing more. WIth a GT30 and 0.63 rear.

OP needs to look at if the wastegate is holding shut. Or put tension on it.

tow a boat up a hill in 1st gear, probably could hit 20psi :whistling:

Hows the foot in mouth tasting?!?

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