GT-R versus 997TT Track Testing Part 2 (Thunderhill), Same driver (me) drives both on same day Options

[chrisn]

In previous threads I compared (using old GPS data) myself driving my 997TT and my GT-R on the same track (Reno-Fernley). The GT-R was 2-3 seconds faster, but there were a lot of other variables (weather, driver skill (GT-R test was a year later-- I hope I got better) etc.).

I just got back from a day at Thunderhill with Hooked on Driving. I had both cars with me.

Some pics: http://gallery.me.com/cnicholson1#100144

I am not a super hardcore track driver (let alone racer). Just a guy that enjoys DE days. My previous fast lap in 997TT was a 2:07. That was before they resurfaced the track. There is debate in the paddock as to whether new surface is faster (because smoother) or slower (because still too new and grip is still building).

Anyway, here are the results:

First session out on GT-R: tires squealing. Car felt heavy. Had to turn in later. I was sure I was slow. But I did a 2:08!! On my third session, I did a 2:05. Two seconds FASTER than my previous fastest lat in 997TT (after 12+ track days in the 997TT on that track).

Best lap in GT-R: http://www.viddler.com/explore/Cnicholson/videos/2/

After lunch, I switched to 997TT. First session, best lap 2:07. Next (last) session, I was gridded up next to a buddy who is very fast and has a very fast 993TT. We where tearing it up. I got back in to check my times and noticed that my TraqMate had come unplugged!!!! So no solid data. My friend's traqmate showed him doing 2:04s with one lap at 2:03.9. We were pretty evenly matched, but I think he is a a bit faster.

Using a bit of judgement, I am going to say that on that day, by the end of the day, I was a bit faster in the 997TT (perhaps by a second-- maybe 1.5 seconds). But: My 997TT has 700HP and hits 140MPH on main straight (versus 135 for GT-R) and I know I am getting closer to limits on 997TT.

It is amazing how easy the GT-R is to jump in and drive fast very confidently, but I still need to learn the car.

Conclusion: Stock for Stock, the 997TT HAS NO CHANCE WHATSOEVER versus a stock GT-R. GT-R versus a modded 997TT would be a driver's race.

-Chris

[rabenoja]

Nice vid and great cars!!! How did you brakes hold up? Are you using the stock pads?

[Goodwood]

Interesting video and comparison. Get ready for a huge pissing match at 6speed! Did you run the GTR with it's ECU stock map?

This post has been edited by Goodwood: Sep 20 2008, 02:36 PM

[chrisn]

Interesting video and comparison. Get ready for a huge pissing match at 6speed! Did you run the GTR with it's ECU stock map?

First session was with 1.04 "Stage 1 with 91 Octane" map. I filled tank with 100 Octane and went to "stock" map (after some testing failed), which is how it was set up when I did my best times.

With our without tuning, this car likes 93+ octane, especially when running it hard.

I tried 1.04 map for "Stage 1, 93 Octane" after filling up with 100, but was getting the overboost/boost cut problem. :-( I forgot to download the 1.06 map for 93 octane. Next time.

-Chris

[kungura]

that seems like a nice open course for the gtr... long winding turns, that can really use the gtr's momentum to sling it in, around, and out of the turn...
those short, technical courses, that are designed for aerial atoms or caterhams, really make this car feel heavy and bulky, like a fat ballerina

[240ka]

Interesting video and comparison. Get ready for a huge pissing match at 6speed! Did you run the GTR with it's ECU stock map?

whats tight is that the pissing match is between the pcar owners who own the gt-r and pcar owners who still think the GT-R is hype.

look at this exchange in regards to the GT2 vs GT-R debate. a former GT2 owner is letting it be known that he will beat(driving the GT-R) this other fella in his GT2 with the GT-R.

I'll meet you anytime you want at Road Atlanta...should be in your favor with the long back straight...but the GT-R is gonna leave you between 1 & 7. Give me some R compound tires like the GT-2 (when they make them in 20's) and it won't be close.

Cleve

P.S. I'm a former GT2 GT700 owner.

http://www.6speedonline.com/forums/997-tur...t2-video-2.html

nissan has built one hell of a car

This post has been edited by 240ka: Sep 20 2008, 06:44 PM

[Chuck_H]

Thanks for the writeup and impressions.

It's nice to hear reviews from members who own both.

[chrisn]

Nice vid and great cars!!! How did you brakes hold up? Are you using the stock pads?

No brake fade at all. I am using stock pads.