tuning tomorrow. stock y7. 10psi! predict please.
#22
Re: tuning tomorrow. stock y7. 10psi! predict please.
sorry for the delay guys, i couldnt do the dyno tune, because the shop rented out the dyno that day. I did a street tune instead, ill reply back to this thread when i get a dyno run on sunday.
#26
Re: tuning tomorrow. stock y7. 10psi! predict please.
sorry guys, i only did a street tune, and my boost gauge wouldnt hold 10psi very well, so we left it at the stock wastegate and that is around 5-6psi.
one question, the tee that came with my MBC has like a restricter or something (no a check valve) on one of the T sides. Are they suppose to be like this?
one question, the tee that came with my MBC has like a restricter or something (no a check valve) on one of the T sides. Are they suppose to be like this?
#27
Re: tuning tomorrow. stock y7. 10psi! predict please.
Is it a bleed type boost controller or does it use a regulator and connect to the wastegate top port? If it's a bleed type it needs to have a restrictor first in-line then to a T. One side of the T goes to the wastegate side port, the other side of the T goes to an adjustable needle or ball valve. This is how i've done it before anyway. Without the first restrictor you won't get your boost as high because the turbo pushes enough air to still open your wastegate even with the bleed open (to an extent). It doesn't need a check valve. If it uses the top port it's different. What type are you using?
#28
Re: tuning tomorrow. stock y7. 10psi! predict please.
Originally Posted by qsiguy
Is it a bleed type boost controller or does it use a regulator and connect to the wastegate top port? If it's a bleed type it needs to have a restrictor first in-line then to a T. One side of the T goes to the wastegate side port, the other side of the T goes to an adjustable needle or ball valve. This is how i've done it before anyway. Without the first restrictor you won't get your boost as high because the turbo pushes enough air to still open your wastegate even with the bleed open (to an extent). It doesn't need a check valve. If it uses the top port it's different. What type are you using?
thats the one im running. So the restrictor side would go to the rubber tubing off the compressor, and the side that air moves through freely would go to the actuator. According to the picture, the red fitting would then go to the ftting on the boost controller that is pointing DOWN. So where does the other fitting on the boost controller go?
#29
Re: tuning tomorrow. stock y7. 10psi! predict please.
Since I don't have it in front of me to check this is just a guess. Also, I don't know if it's just a needle valve or a regulator type from the photo. Looks like it's just a needle valve to me which means it's a bleed type controller. On the "T" I don't know if it matters which fitting goes to what. If it's just an open "T" it doesn't matter. If there is a restrictor on one of them that one would go to the compressor. From the pic I guessed and that's the one I labeled "To compressor". If it's a bleed type and you connect the controller outlet to the wastegate top port you will not have control over your boost and it will most likely keep rising the longer you stay in boost until you blow something up. Didn't the thing come with any instructions or details?