over boosting problem
well got the mightyboy goin, took it for a test drive, and it just want to keep boosting, goes to 11 and i have to back off, starts to ping, and clutch is slipping, i took the acctuator off, and blew into it with an air compressor, its opening, and i put me finger over it and its not comin back so the diaghram hasnt got a hole in it... we put a boost gauge onto the actuator line, and its puttin 9psi out there... only thing i can seem to work out is that the actuator is a high boost one.. any one got any thoughts?
have you driven with this turbo before???
someone could have swapped the 7psi std. actuator spring for a higher rated one....
someone could have swapped the 7psi std. actuator spring for a higher rated one....
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no i havnt, thats what im starting to think.. iv got another turbo here from a 550cc dohc but the actuator has different bolt pattern.. there are some numbers on the actuator..
Most if not all F5A Suzuki turbos are set up for 11PSI, its only the Jimny that I have found so far that is set up for less.
F8B EFI turbo - Three pots and a snail.
oww ok, what about the f6a? so could i space the actuator out a bit to so its open the wate gate sooner? of do u know were i could find a actuator?
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stevan_istheman
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Nah, i'm pretty sure F6A's are set at over 1 bar (14.7psi) from the factory...
Of course i could be wrong...
Of course i could be wrong...
BAL4 Designs
For all your mechanical design and drafting requirements.
For all your mechanical design and drafting requirements.
My turbo is off an F6A Jimny and is set at 7PSI. Jermaine the only way to modify the actuator for less boost is to install a softer spring.
F8B EFI turbo - Three pots and a snail.
right, so its possible to pull the acuator apart.. il give that ago..
any tips of suggestions on gettin the diaghram apart, i got a corner up a lil, but its makin abit of a mess of it..
sorry forgot the rhb31's were set higher from factory....almost all other turbo's have a 7psi spring in them std.
before you take it apart completely, you could experiment with a boost controller, try a simple manual bleed type first, but for a reliable boost control get a electronic boost controller.
before you take it apart completely, you could experiment with a boost controller, try a simple manual bleed type first, but for a reliable boost control get a electronic boost controller.
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hmmm ok.. surly the boost controler only allows for more boost by restricting the line to the actuator? i need more flow to the actuator to open it quicker.. which wont happen.. unless as brayden said, a softer spring.. or smaller actuator..
I should shut up now, yeah sorry had a few xmas drinks....you're asking the opposite to what people normally ask (less boost)....
softer spring or different actuator are your only options
softer spring or different actuator are your only options
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lol, yea thats what i thought.. and id be hard pressed to find a smaller actuator wouldnt i?..
There's your answer.Brayden wrote:My turbo is off an F6A Jimny and is set at 7PSI.
F8B EFI turbo - Three pots and a snail.
i take that as a yes lol.. i rang a fella this morning, who owns a diesel injection place, and he said u can get universal acctuators.. but they not open till the 4th... i spaced the actuator with 2 nuts, and got the boost down a bit its around 10psi atm, it starts to ping up top, i havnt adjusted the timing or anything, thats what im gonna do next nd see if that helps.. but im thinkin it maybe leaning out,