HighMileage
Albany,NY
- Joined
- Jul 24, 2010
- Messages
- 973
My new Turbonetics 60mm ball bearing turbo is installed. I still have the stock converter. I know I need to upgrade that to a 3,000 since I just pulled a 12.8 with a horrible 2.5 60ft time.
But,a few friends off of this board recommended a few things. The 4 of us have been privately emailing for years. They are those really,really smart mechanical engineer types who have a huge background in engine management. Mainly industrial diesels.
They aren't really fluent in Turbo Buicks,but I HAVE sparked their interest since I got my GN 4yrs ago.
Can someone please tell me what this friend is talking about? Is he correct?
..and what the heck is a VGT turbo? These guys get over my head sometimes. Thanks.
"...it sounds like you have a poor turbo match.. Do you have the compressor and turbine maps for that turbo.. I think you mentioned the make and model before, but it could not find it.
Yes, you could spend the money on high stall converters, but if I understand you correctly, this will be driven more on the street than the strip. You could get a VGT turbo as D^2 suggested, and yes, they do make them for the higher temperature gasoline engines, but they are expensive and you will need a controller.
Send me all the info on your current and original turbo and I will take a look. Does your new turbo have a divided turbine housing (twin scroll)..if so, it could be possible that your arrangement of firing pulses to each side are in the incorrect order.
A smaller twin scroll, to me, sounds like the way to go.."
But,a few friends off of this board recommended a few things. The 4 of us have been privately emailing for years. They are those really,really smart mechanical engineer types who have a huge background in engine management. Mainly industrial diesels.
They aren't really fluent in Turbo Buicks,but I HAVE sparked their interest since I got my GN 4yrs ago.
Can someone please tell me what this friend is talking about? Is he correct?
..and what the heck is a VGT turbo? These guys get over my head sometimes. Thanks.
"...it sounds like you have a poor turbo match.. Do you have the compressor and turbine maps for that turbo.. I think you mentioned the make and model before, but it could not find it.
Yes, you could spend the money on high stall converters, but if I understand you correctly, this will be driven more on the street than the strip. You could get a VGT turbo as D^2 suggested, and yes, they do make them for the higher temperature gasoline engines, but they are expensive and you will need a controller.
Send me all the info on your current and original turbo and I will take a look. Does your new turbo have a divided turbine housing (twin scroll)..if so, it could be possible that your arrangement of firing pulses to each side are in the incorrect order.
A smaller twin scroll, to me, sounds like the way to go.."
