Originally Posted by
Turbo91SER Don't we normally dyno in 4th?
Yes, we usually do it in 4th as well, but we had traction issues in 4th gear, so ran it in 5th instead. It means the losses are higher, but we managed to keep the tyres from spinning on the rollers themselves.
Originally Posted by
AndreasI am 100% sure the P11 tranny you have is not the 00-02 P11 tranny. The P11 tranny you have is the 99 P11 tranny we get here.
I have never gotten a US style 00-02 P11 tranny from Japan or Europe.
Nope, it is definately a 70 series transmission, albeit an open-diff version.
The 99 P11 tranny (32a with cooling fins) is what we had from 96 onwards, as we also had the roller rocker from this time as well. The Almera GTi and Primera GT came with both from the factory.
However, the last of the SR20 equipped P11-144 Primeras came with the 70 series transmission, as did a number of the QG18DE equipped cars, albeit with a different bellhousing.
I have a P11-144 casing, QG18DE gear stacks (shot peened and cyro'd) and a NISMO LSD.
Run it on 85W-140 truck differential oil and it lasts a lot longer than any of the HD Redline crap!
Originally Posted by
Coheed 500lb of torque and 5th gear is a no-no on a dynojet. With 500lb tq you have to be making like 600hp+
Nah, the car probably makes in the region of 500 BHP at the flywheel, going by the fuel usage and terminal speed / vehicle weight calculations.
It does make a lot of power at low revs, 319 WHP (in 5th gear) at just 4000 rpm, hence the high torque.
As stated before, at the next loading point (4500 rpm) the transmission let go, so I can only imagine that the torque was at a similar level (or higher) or the constant load from the dyno' didn't do it any favours.