First off Mods, I was not sure where to put this thread so if any of you have a clue after reading please feel free to move to proper area.
My question is about the difference in spool-up times on 7MGTE and 2JZGTE engines. I have been doing some looking around, and I have noticed that alot of the 2JZ motors with turbos larger then the 7Ms, seem to spool up faster.....On the 7MGTE that I had, I was running a T70, with 2.75" IC pipes, and a 3" exhaust, and it didn't start spooling until at least 26-2800 RPMs. Now that I have a 2JZ MK3, it has a 67mm turbo on it and it is starting to spool around 2200. Does that 3mm really make that much of a difference? Or is there some design in the 2JZ motors that gets the exhaust out faster...
Wondering about this because if there will be minimal gain from 70 compared to the 67, then I will just stay with the 67 because of the quick spool......I know I can get a quick spool valve, but I am not paying that kind of money.... I just don't understand why 2 engines that are both 3.0 inline 6s, spool completely differently.
My question is about the difference in spool-up times on 7MGTE and 2JZGTE engines. I have been doing some looking around, and I have noticed that alot of the 2JZ motors with turbos larger then the 7Ms, seem to spool up faster.....On the 7MGTE that I had, I was running a T70, with 2.75" IC pipes, and a 3" exhaust, and it didn't start spooling until at least 26-2800 RPMs. Now that I have a 2JZ MK3, it has a 67mm turbo on it and it is starting to spool around 2200. Does that 3mm really make that much of a difference? Or is there some design in the 2JZ motors that gets the exhaust out faster...
Wondering about this because if there will be minimal gain from 70 compared to the 67, then I will just stay with the 67 because of the quick spool......I know I can get a quick spool valve, but I am not paying that kind of money.... I just don't understand why 2 engines that are both 3.0 inline 6s, spool completely differently.