Sluggish 98GU 2.8 Turbo Intercooled

[ronnieY61]

Hello Everyone,
I'm looking for some ideas as to why a freshly rebuilt 2.8 turbo intercooled Patrol is only marginly better after a full rebuild. It's now 50 thou over with new everything but for some reason it's only a little better performance wise than before rebuild. Now it has heaps of compression, starts easy does not blow smoke but is still a bit of a slug. It has new injectors and does not belch black under load.
The only things that have not been reconditioned or adjusted is the injector pump and the computer,
if anyone has experienced anything like this I would be very happy to get some answers before my son digs a hole and buries it!!
Many Thanks.

[Ben-e-boy]

Has it been dyno tuned?

[threedogs]

X 2 with Ben go get it Dynoed
Have you enough miles on it to say its run in???

[nissannewby]

How many k's on the vehicle mate? Fresh injector pump can make a big difference on its own but it is still only a 2.8 its never gonna be a quick thing.

[ronnieY61]

Hey Ben,
Thank you for the feedback, have you had much experience with Dyno Tuning. Can this make a significant difference?

[ronnieY61]

Hey Three Dogs,
Have you had much experience with the Dyno Tuning, I have no Idea how much of a difference it can make.

[threedogs]

A Dyno tune will get the best out of what you have, as its tuned as if driving it.
They'll hook up to a computer and maybe re map your fuel or boost to the optimum
can't get much better than Dyno tuned Price wise maybe $150 with a read out of hp /RWKw etc

[ronnieY61]

It's just ticked over the 1,000km mark since full rebuild so I guess it's still a little bit tight.

[threedogs]

Somehow we need performance figures from new that we can use for all models as a bench mark.
Give or take one second should be ball park and a pass. Just not sure how to obtain figures though

[P4trol]

with a read out of hp /RWKw etc

Yeah, post up your dyno sheet!