Re: 2012 GTR shaves 6secs off 'Ring time'. 0-60 in 2.9seconds!
Shaun;642448 said:
At both Shanghai and Sepang circuit, 458 gets up to 115-120 C oil temps in about 3 hotlaps and holds steady. Cools down quickly once off load a little while.. good cooling system, pretty light car.
Stock GTR up around 135+ on transmission temp (forget which), right around the same time the engine oil temps reach close to that level and the warnings all come on and it goes into limp mode . And all this in just 2 - 3 hotlaps. Major interruption. How did the Australian R35 reach 150 C oil temp without going into limp mode which would have effectively stopped the hotlapping anyway? The threshold is somewhere around 135 no?
The R35 GTR temp info was provided by a local dealer as I was in the market for the GTR and brought up the matter based on hearsay within the community. The dealer principal check with Service later confirmed that a particular R35 GTR had its warranty voided as engine oil temp reached 150 deg. This was discovered after the owner wanted to claim warranty on drivetrain.
A R35 owner in the know put me in touch with the alleged owner. The owner then confirmed that the warranty was voided but at that time while at the track, wasn't aware oil temps had reached 150deg as he was too busy driving.
Perhaps we can speculate the numbers got distorted along the way between Mechanics, Service Manager and Dealer Principal ?
As for F458, the owner is my long time highschool mate. It was a track day in which I organised. He appointed someone to time the laps as we did not have Dorians. Total laps: 11.
Upon entering the pits I asked him for the engine temps and I saw that it was 84 deg.
The F458 did 1 cool down lap prior pitting. I do not know if the driver of the GTR did a cool down lap.
Point at which oil temps were obtained:
F458's 84deg in pits. R35 GTR "peak temp" recorded via onboard computer.
Again bearing in mind, the race track is only 1.76km. Had I done a single 1.76km cool down lap in my Evo, there would have been a smoke screen in the pit lane emitted by AP Racing.
As to why the huge discrepancies in oil temps between both cars, I can only think of the point in time in which both temps were obtained.
As to why the F458 lasted longer than the R35 GTR, I am not mechanically well versed with both cars so I'm not going to try. F458 and GTR owners feel free to chime in as I'm keen in knowing.
I honestly don't think the extra 4 laps would've made the difference.
