gpny
10-18-2006, 03:42 PM
I always hear about people saying "I want a turbo that spools by X rpm"
I was wondering if there is actually a standard gear/beginning rpm for people to really compare apples to apples with regards to spool time...
I mean, in first gear from a standstill, my car probably has full boost by 3500rpm, but I can't really tell because the tires start spinning around there and I'm at the rev limiter right away.
In second gear, from a 2000 rpm roll, I'm at full boost by around 4000rpm??? don't know because same thing, the car loses traction.
In third, from 2000 rpm, I would say full boost comes around 3000rpm?
Is there any reference as to where people could get consistent values. Boost is definitely gear dependent, and starting rev dependent.
It would be nice to judge turbos with a more consistent approach.
I believe it would be great to post up spool times from a 2000 or 3000rpm, or maybe even a 30mph, 3rd gear roll. That would help eliminate wheel spin for most of us, and would really make for a better comparison between turbos. Also necessary would be listing which levels of boost you hit when (IE:
In 3rd gear from a 2000 rpm roll, I hit 8psi by 2800rpm and 15psi by 3000rpm)
What do you guys think?
Try to keep responses mature and technical please...;)
I was wondering if there is actually a standard gear/beginning rpm for people to really compare apples to apples with regards to spool time...
I mean, in first gear from a standstill, my car probably has full boost by 3500rpm, but I can't really tell because the tires start spinning around there and I'm at the rev limiter right away.
In second gear, from a 2000 rpm roll, I'm at full boost by around 4000rpm??? don't know because same thing, the car loses traction.
In third, from 2000 rpm, I would say full boost comes around 3000rpm?
Is there any reference as to where people could get consistent values. Boost is definitely gear dependent, and starting rev dependent.
It would be nice to judge turbos with a more consistent approach.
I believe it would be great to post up spool times from a 2000 or 3000rpm, or maybe even a 30mph, 3rd gear roll. That would help eliminate wheel spin for most of us, and would really make for a better comparison between turbos. Also necessary would be listing which levels of boost you hit when (IE:
In 3rd gear from a 2000 rpm roll, I hit 8psi by 2800rpm and 15psi by 3000rpm)
What do you guys think?
Try to keep responses mature and technical please...;)