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Gtx Won't Hold Or Increase Boost.


747pwr

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  • REST IN PEACE V8
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Had same issue 747 but with gtx35/82 the flapper would open and tapper the boost back to 16psi as u can see by the dyno graph problem was solved with eboost2

post-15304-139575060779_thumb.jpg

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  • REST IN PEACE V8
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  • Member For: 16y 7m 25d
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  • Location: Woodridge on the park bench

76 is different to 82, does not flow as much air, eboost2 should do exactly the same thing as factory controller in that situation

Not if you have a the eboost 2 connected to an rpm signal when it starts to tapper off adjust as necessary only gained two psi so ditched whole setup but you are probably right on a 76

tuner wasn't lazy nothing wrong with my solineiod atomic 4+plus cams and head porting try holding more than 16psi with an internal gate we got 18psi due to rpm pickup with the eboost

Edited by RIP85
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  • REST IN PEACE V8
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The factory controler does that also

really so when the boost tappers off due to the flapper opening you can force it to stay closed at a certain rev to hold the flapper shut Thanks I never new factory controller could do that

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  • RNS10S
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e-boost is good if you don't want to change tunes, my car ramps in boost gradually for street duties, but when I turn on the e-boost boost comes in hard at 25-26 psi and then tappers off.

Maybe my tuner was lazy............

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we gave up on mine went external gate solved the actuator problem. Still think e boost is a good idea trying to convince my tuner to allow me to run a solenoid as such which will allow me to run say 10psi up two 100ks then full boost after that using the eboost instead of having to push the plus and minus

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