QUOTE (TURBOWHT @ Nov 15 2004, 02:54 AM)
i guess it is sapposed to spool up quick. idk what do you guys think?
I don't have experience with Holset turbos but 'quick spool-up' is a very relative term. Generally, the bigger the horsepower numbers that a turbo is capable of, the bigger the lag.
So, when the ad mentions it to be a 650+ capable turbo... you get the idea.
The other consideration I'd look to is that a lot of the big diesel turbos are designed for extrememly high boost applications (think 40 psi). Your actual hp will vary considerably at more streetable (non-diesel) levels.