G6 GSD
14th April 2003, 08:21 PM
I bought a 1989 Turbo II convertible last summer. It had a reconditioned engine fitted by Rotechniks 9,000 miles prior. I've since done 5,000 trouble free miles. On driving, it is very smooth and gives no reason to believe there is anything wrong. 0-60 time is close to the book number of 6.5 secs.
However, there are a few things that make me wonder if the turbo is doing what it should :
1) The booster guage will sometimes not read at all, sometimes show a reading starting from 1,000rpm proportional to the amount of throttle but only going half way up the dial, occasionally show boost with very little throttle going up to three quarters full reading. I assumed this was just a faulty dial.
2) There is no noise of a turbo cutting in.
3) The power has a very smooth delivery with no sudden surge at a given number of revs.
4) The power appears to fall off at high revs.
Fuel consumption is about 20mpg, and there is are no blasts of smoke.
As you may be able to tell, my mechanical knowledge is not the best, so a low-tech explanation of what may be happening would be appreciated.
Thanks,
However, there are a few things that make me wonder if the turbo is doing what it should :
1) The booster guage will sometimes not read at all, sometimes show a reading starting from 1,000rpm proportional to the amount of throttle but only going half way up the dial, occasionally show boost with very little throttle going up to three quarters full reading. I assumed this was just a faulty dial.
2) There is no noise of a turbo cutting in.
3) The power has a very smooth delivery with no sudden surge at a given number of revs.
4) The power appears to fall off at high revs.
Fuel consumption is about 20mpg, and there is are no blasts of smoke.
As you may be able to tell, my mechanical knowledge is not the best, so a low-tech explanation of what may be happening would be appreciated.
Thanks,