G
Guest
Unregistered
Hi guys,
Ive been having a problem with my legnum. When i accelerate in either 3rd or 4th when it seems to hit full boost it feels like the entire motor shuts off for like a second. I was wondering if anyone else has had this problem or has any idea what it could be. If you watch the boost gauge as you accelerate flat foot it seems to happen when the boost peaks. The entire car shudders, engine power disappears and then all of a sudden it boots back in after a second or less. It can even happen twice in a row in third and has happened in fourth but i havent been able to test it too much in fourth as i would be exceeding the speed limit. It hasnt happened in first or second. As a mechanically minded person but also someone who hasnt had any experience with turbochargers my theory is that it could have something to do with when the turbo boost peaks and the wastegate opens up. I dont know if that makes sense but thats the only thing i can think of. At first i thought it could possibly be gearbox related as it was happening in third but i tried it on the freeway in fourth and it happened aswell. I know with the legnums when you dont shift smooth u feel a shudder and it feels similar to that shudder but is not related to gear change in any way as it happens mid revs. The boost also drops one or two psi when it happens and i dont know if thats related to the cut in engine power or if thats the problem itself with my wastegate theory i mentioned before. As i said i dont know anything about turbo systems so you'll have to excuse my ignorance. Any info would be much appreciated as it is quite a rough feeling when it happens and definately doesnt feel normal at all.
Cheers.
Ive been having a problem with my legnum. When i accelerate in either 3rd or 4th when it seems to hit full boost it feels like the entire motor shuts off for like a second. I was wondering if anyone else has had this problem or has any idea what it could be. If you watch the boost gauge as you accelerate flat foot it seems to happen when the boost peaks. The entire car shudders, engine power disappears and then all of a sudden it boots back in after a second or less. It can even happen twice in a row in third and has happened in fourth but i havent been able to test it too much in fourth as i would be exceeding the speed limit. It hasnt happened in first or second. As a mechanically minded person but also someone who hasnt had any experience with turbochargers my theory is that it could have something to do with when the turbo boost peaks and the wastegate opens up. I dont know if that makes sense but thats the only thing i can think of. At first i thought it could possibly be gearbox related as it was happening in third but i tried it on the freeway in fourth and it happened aswell. I know with the legnums when you dont shift smooth u feel a shudder and it feels similar to that shudder but is not related to gear change in any way as it happens mid revs. The boost also drops one or two psi when it happens and i dont know if thats related to the cut in engine power or if thats the problem itself with my wastegate theory i mentioned before. As i said i dont know anything about turbo systems so you'll have to excuse my ignorance. Any info would be much appreciated as it is quite a rough feeling when it happens and definately doesnt feel normal at all.
Cheers.