Hey guys. At the risk of starting another lenghty post .
Was told by a reputable turbo business to upgrade from my old TO4 .84 ex to a GT30 of similar spec. The fj in question went backs in regards of top end.
As far as everything else goes the new turb. is great, full bost by 3000 compared to a laggy 4000 ish. same boost level, same external gate blah blah blah. What does any one reackon. cheers.
Depends on what you use the car for. What has happened is the age old trade off. You can give away top end to have boost come on early or give away bottom end to have boost up top. Very hard to have both early boost and lots of top end.
If its a road car we are talking about, I would say you have a much quicker car now and its probably a lot more user friendly.
If its a circuit car, you have a much better thing because you want mid range punch and a broad torque curve, not peaky power.
If its a drag car then I guess you have gone backwards. Bummer.