9 replies to this topic

[Fritzbaum]

Hello everybody. I'm new to the forum and the world of GT-Rs, so I wanted to quickly introduce myself.

 

My name is quite obviously Fritz though I'm not German. I live and work in the tiny and beautiful country of Luxembourg in the heart of Europe. I work as a teacher in a correctional facility for delinquent minors, which pays well enough for me to finally be able to afford a GT-R. Before the GT-R, I have owned a few cars like a Renault Megane R.S. (loved that one, but after 8 years it started falling apart), Nissan 200SX S13 (equipped with a CA18DET), a VW Corrado G60 and a few more.

I bought a used GT-R in regal red two weeks ago with about 24000 miles on the odo (38000 km actually); it was pre-owned by a lady from Berlin, and before that a Nissan dealership owned the car for about 3 months.

My main concern was to get a low mileage car that hasn't been tampered with, so yesterday I took it to the dyno to see if it made OEM power. And it does: The result is 550 PS and 680Nm. The engineer at the testing facility later compared the results to other stock GT-Rs they had previously tested and they made more or less the same figures, so I guess that's OK.

I still need getting used to the "weird GT-R noises", so be prepared for me to post a few vids with questions like "is it supposed to do that?"

 

Oh, and here's the dyno sheet. Since it's in French, I'll translate:

Puissance Moteur (mesurée) = engine power (measured)

Puissance Roues (measurée) = wheel power (measured)

Pertes Puissance (mesurées) = drivetrain losses (measured)

Puissance Moteur (corrigée) = engine power (corrected after DIN)

Couple (corrigé) = torque (corrected)

 

Quick question here: are the drivetrain losses normal at only 52 PS? I thought they should be much higher on an AWD car.

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[thehelix112]

Welcome! What year is your car? 550ps to the wheels I think is a little higher than stock, maybe not for a nismo though. But I am far from an expert, so you'd need one of the more experienced members/shops to weigh in.

Share some pics when you get a chance.

Dave

[7racer]

welcome!  and not sure on the dyne chart.  It looks good to me but haven't looked at a stock dyno in a while

[droptopp]

Welcome and congrats. Dynos are only tuning tools so I wouldn’t read to much into the numbers for baseline. Once you mod it you have a baseline that maybe within 5% depending on all the variables that account for numbers generated on dynos.

The parasitic loss would greatly depend on the correction factors that the operator is loading into the equation. Why every dyno reads different and a single point of data is worthless to draw any kind of correlation to.

FWIW trap speeds are true tests of whp/awhp

Now if they have dynod 20-30 GTRs then you could stack your numbers up against them and again factor in a 5% margin for variables (strap down, temp, density altitude, humidity, shop temp, fuel, age, trans, fluids, etc).

Enjoy.

Edited by droptopp, 09 March 2019 - 01:57 PM.

[Fritzbaum]

Thanks for the welcome. I will probably not go on the 1/4 mile with my car, simply because it's not as popular a sport on this side of the pond. I don't even know if there are events i my country. I do, however, only work 5 minutes from the German border, so my benchmark is more likely going to be 100-200 kph times. Which I haven't measured yet.

[droptopp]

I love driving in Germany. 60-130 is a solid benchmark, personally shooting for low 3’s this year.

Be safe and again welcome

Edited by droptopp, 10 March 2019 - 10:57 AM.

[Tim]

Welcome to our little world Dude. Man love your country and Dammdude Regal red is a beautiful color. I believe there are some 1/2mile events close by to you but F that you can drive the Autobahnn ‘ IM A SUPER JEALOUS ‘

Here is a 100-200kmh to shoot for

[Tim]

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[Fritzbaum]

Holy cow, 2,8 secs, I still have some work to do to come even close!

[Tim]

Holy cow, 2,8 secs, I still have some work to do to come even close!

My man it took me 10 yrs ,take your time:)