95 TSI AWD Project VGT Holset no 56k
#131
Re: 95 TSI AWD Project VGT Holset no 56k
Originally Posted by rawr
I'm probably going to weld the vgt still so it won't be too special.
If I fucked up, sorry a bit buzzed just got back from the bar.
#132
Re: 95 TSI AWD Project VGT Holset no 56k
I was thinking about that too but your thread on diyefi sort of led me to believe that the vgt fails on gas engines. I'll check it out when it gets here. This thing is going to be a trip to try to figure out how to mount.
#133
Re: 95 TSI AWD Project VGT Holset no 56k
i found a bunch of good info and even dev tools for the can bus... check out this site http://www.kvaser.com/index.htm
#134
Re: 95 TSI AWD Project VGT Holset no 56k
Originally Posted by rawr
I was thinking about that too but your thread on diyefi sort of led me to believe that the vgt fails on gas engines. I'll check it out when it gets here. This thing is going to be a trip to try to figure out how to mount.
You would be removing the actuator, so thats a moot point.
#135
Re: 95 TSI AWD Project VGT Holset no 56k
Originally Posted by aero
Which part gave you that impression? Just curious. The 431V has an actuator that works off brake air, and more pressure = more boost. It works in reverse from a wastegate actuator for safety in the appliciation.
You would be removing the actuator, so thats a moot point.
You would be removing the actuator, so thats a moot point.
#136
Re: 95 TSI AWD Project VGT Holset no 56k
Originally Posted by rawr
In the thread that fred posted with the pics you have him of the control unit, he and another guy were talking about how VNT turbos seize up on gas engines since the EGT's are too high. But now i'm guessing I can just assume that one guy was talking out of his *** or talking about older generation VNT turbos. Also, I'm going to run a regular external gate with it since this isn't going to be a high boost thing until I get a spare 3sgte.
The single piece of the VGT should dissipate heat better, and not have the areas that could bind.
In my limited mileage with this VGT I have punished it pretty hard EGT wise. Non intercooled. Had a broken timing light went really conservative for safety, so base timing was ~10 degrees low, leading to under 5 degrees timing under full boost. Which is VERY low for a 4g6x. That went for about a week like that before I borrowed a light and got it set right. Creates some seriously high EGTs for the turbo to handle.
I never had any issues with the VGt, it opened the same each and every time the same.
#140
Re: 95 TSI AWD Project VGT Holset no 56k
It has the same dimensions as the 6 bladed 60mm big HX 40 that everyone seems to want. I've heard in the vicinity of ~67lb/min thrown around a lot. The 6 bladed HX40 has made 650AWHP in the tiny BEP housing on a 4g63. , so that number should be pretty representative of the compressor flow it will make.