Z ROADSTER

Autoblog=
Seems Nissan has taken a page from GM in that their guilty of under-rating the advertised horsepower of the mighty GT-R . According to dyno testing two different GT-R"S back to back on the same dyno they both put out 420 HP to the rear wheels & they figure that's good for 520 HP at the flywheel . Now , how much do they cost now & what kind of warranty ? Hmmm ! Naw , not really . I can't get past that ugly front end . Besides , right now with GM"s new pricing you could buy a new Z06 with $10,000.00 off the retail list price !

jimmy169

And that's not all! I'll take 70+ hp for 1,000 bob.


Cobb Tuning gives the GT-R a serious bump in power
Posted Aug 21st 2008 4:27PM by Jonathon Ramsey
Filed under: Aftermarket, Gadgets, Tuners, Coupes, Sports/GTs, Tech, Supercars, Nissan

Cobb Tuning has re-engineered its AccessPort control unit for the new R35 Nissan GT-R. For those of you lucky enough to own a GT-R and not content with its performance out of the box, the $995 AccessPort will reflash the ECU to any one of six different tuning levels.

There are three levels each for Stage 1 and Stage 2. Stage 1 can get you up to 63 additional ponies and 70 lb.-ft. of additional twist, while Stage 2 can boost the numbers by 70 and 90 respectively. The AccessPort can also save your stock ECU data and reflash it when you decide you're finished with all that extra gumption. According to a GT-R owner who tried it out, you can be blowing past all those regular GT-Rs in less than an hour.

And that's not all: you can store multiple engine mapping programs, remove trouble codes, install reduced-power valet and economy modes, and update maps over the Internet. It seems like a ridiculously easy proposition for making your supercar that much more super. So if you got one of those GT-Rs that are a little low on horses, this could be just the ticket.

whatsgrip?

this is me realizing my car needs mods

ChaseSS

iTrader: (17)

Z how about a link? I have yet to see you post one in any of your threads (im not harassing you, I just like to see evidence for myself. otherwise, I'd believe that a stock gt-r ran a 7:29)

Z ROADSTER

My bad ? Look at the top of the post where it says "AUTOBLOG" , thats a .com . I'm used to it .

Thomasio

I purchased mine for 75k out the door.

Wnts2Go10O

iTrader: (12)

cobb?...lmao.. they hve a kinda crappy rep in the subi arena

whatsgrip?

im confused
http://www.autoblog.com/2008/08/20/l...ive-nissan-gt/

it says that the first car and fifth car (from one lap america) dynoed at 420 and the other two GTR's felts much slower....


So is it that that nissan under rated all their GTR's or the two dynoed are factory freaks?

Thomasio

Well, from the two GTR owners that I know dynoed 431rwhp and 440rwhp. Im taking mine to get dynoed next week sometime.

Hey all

I returned from the track last night, and wanted to share my story and impressions with you all.

The track I visited was Lime Rock Park, in CT, one of the most storied and well loved circuits in the US. They have just got done repaving the place, and it looked outstanding. Very smooth, (that is new if you have ever driven there before), no concrete, and the ALMS guys were just there so lots of new sticky rubber on the pavement. Track conditions were 80 degrees and sunny. I was driving in our DE's advance class, with Formula cars, Exige 240 Cup's and Porsche GT3 Cup cars. So it was a fast crowd.

First impressions: Got in the car, started her up and headed out to the track. LOTS of people were watching, from instructors to the Skip Barber crew chiefs. Everyone wanted to see this thing go. I must have been asked 100 times if the GTR's were available yet and how long I waited. I tried to blank that out as I waited to go out for the first time. I sat and waited with the stereo cranked on some tunes, and AC going full blast. As the INT class rolled off the track, and we rolled on, got the switches all up in R mode, and turned off the stereo and AC. I was ready.

First lap was under yellow, and gave me some time to get my seat in the right spot, get the MFD on the right screen, and tires warmed up a little. It took me a bit to get the feel of the paddles through my driving gloves. The wheel felt good, searing is weighted perfectly as well. The start/stop and mark buttons are within a thumbs touch on the wheel, and nice and big numbers on the MFD.

Green flag and we are off, I am about mid pack. The car pulls hard on the strait, even after 100 mph. The turbos seem to have plenty of capacity up top and dont fall on there face. Entering turn 1, I downshift twice in rapid succession, hard on the brakes and then trail brake in. The car is pushing (under steer) with a lot of tire noise. That's ok, as it gives you an idea of how far on the edge you are. Very controllable to point the nose with your right foot. Turn 1 becomes turn 2, and as the car flattens out, I am on the gas. The front of the car pulls its self around (G meter is pegged at 1+) and I am motoring out letting the wheel unwind and setting up for the only left hander on the course. I let the car drift out the right side of the track for a very late turn into 3, tires howl, you can feel the weight of the car here, its not intrusive, but it does not flick like a lighter car, you have to set it. Car settles through the apex and gains speed to nail 4 and be able to be full throttle on the apex. The car has some body roll, but feels good, for a street car. Not a lot of roll in R mode. You can feel the AWD bighting in this corner very well. The car flattens out, and I shift to 4th for a run down the back strait. Braking hard , I am setting the front end to punch up the hill. As the car slides into the hill, I am unwinding the wheel. This is were the very good steering feel in this car comes in. Its much superior to the Z06 in this regards, and you can give almost delicate inputs to get a great result. The Z06 takes more of a heavy hand, as the steering is just not as good. Full throttle up the hill, and the wheel strait at the top of the hill. The suspension unloads, and the car stutters, because it is confused as to were the ground just went. The Z06 does this as well. Kind a scary until you know what is going on. Full power again heading down the mini strait, setting up for west band, a high speed sweeper that heads down hill. The GTR loves this corner and gains time on almost anyone in it. It could use a bit stronger brakes here, but these are stock brake pads... I will say these are the best brakes of any street car I have ever driven. No fade, all 2 hours I was on track. The pads were fin after this abuse as well, the rotors were ok as well. They have a good positive feel even if boiling hot. Impressive. I hit the brakes to set the nose of the car, turn into the apex and steadily apply power while unwinding the wheel. Down the hill I go. Many race cars can go full throttle down the hill. I don't as I don't have the nuts. At the bottom of the hill I am doing around 97 MPH, tap the brakes and power on the apex onto the strait. The car feels heavy here, the tires are howling, because we are in the 1+ G area again. Full throttle through the apex, and onto the strait. The car pulls HARD on the striate. The car will pull on about anything heading down the strait. The power is phenomenal, and I have the shift to 5th gear, and see speeds of 136+ before I am in the brake zone again for turn 1. All of this happens in 1:02, about 2 seconds faster than I did in my Z06... Except... My Z had R compounds.

The GTR is a fairly easy car to drive hard. To be fast in it, you need to drive aggressively. A few times around turn 2, I could feel traction control, but basically it was seamless. Not intrusive at all. The tire wear I saw was acceptable, and not as bad as we were lead to believe. There is plenty of tread on the tires left after 2 hours of me kicking this car in the pants. My STi and WRX had much worse tire wear. The brakes were fine the whole day, all day and the pads have a lot left on em. Rotors did not warp or crack. Temps were constant in the oil and trany. Kept a close watch on that all day. I run with no front plate, so I don't have air restrictions.

Things that I would think would benefit the GTR: 19" wheels, and big fat R compounds. This car would be a monster with good tires. I think the stock ones were fine, but with Toyo R888's, I think this car would be very very fast. I would say more aggressive brake pads help any street car and would help the GTR. Its a heavy car, and we need the extra bite. The seats held me well, but I need to add a 5 point system, as the G's pushed me around a bit. Besides this, this car does not need a lot. Tire PSI got up to 34, so they were warm.



http://www.viddler.com/explore/ScottsGTR/videos/1/

Thomasio

And here is what I wrote in another section of this forum:


"Actually you are quite wrong. Im the owner of a Z06 as well(read my review above) and I can tell you the acceleration is nothing like in my Z. To be honest, it does pull harder from 0-100 the GTR that is than my Z06. I tracked my Z06 at LimeRock with R compound tires and achieved two seconds faster with my stock GTR my first time out.

I had a chance to run my buddies LS3 yesterday(will have vids shortly) and it was pretty close from a roll with me(1-2 cars ahead until 130) but a slaughter from a dig. We ran 6 times and the result was the same in ever case."

whatsgrip?

^^^ so you beat your Z06 (c5? or c6?) by 2 seconds on a 1.53 mile track with only a cobb tune(70awhp+ over stock)? but an LS3 C6 kept up with you in a drag race? ouch my head

Spoolin

iTrader: (8)

Nice write up Thomasio! and welcome to the forum. I'm a firm believer that Nissan underrated the GTR but that doesn't take away from the phenomenal car that it is! Interested in hearing more reviews from you. Congradulations on your purchases...I do hate you though for it!

Z ROADSTER

You lucky dog you ! Very nice read .

jimmy169

That's pretty crazy that only a tune, everything else untouched, will give you 70+ extra hp...and then you can set it back to gas economy mode or w/e you'd like.

Thomasio

I own a C6 Z06.

No, my GTR is completely stock. Sorry for the confusion. In regards to my Z at LimeRock, it was equipped with R compounds tires. In which my GTR best that time by two seconds on stock tires.

Yes, Im headed back to CT in a few hours. We should have the videos posted here shortly. Sorry for the delay. Im not the owner who recorded the race.

Thomasio

Thank you

My Mines exhaust/dp's and Amuse wing should be here next week(hopefully). Here are some pics of a white GTR with the setup I hope to achieve:

http://i288.photobucket.com/albums/ll169/28psi/GT-R.jpg

And a black one:

http://i288.photobucket.com/albums/l...trlms3kh41.jpg

The rims are BBS LM's 20in

Thomasio

My friends review of his newly acquired GTR. Also, a C6 Z owner.

His name is WandererZ06 on Corvetteforum:


How’s it going!

I may have to retract that statement I made!

I took delivery of my 09 GT-R today and all I can say is WOW. I have to be honest I was expecting less and got a whole lot more. I’m not some young fanboi as you know and I wasn’t sure if I was going to keep it or flip it.

I did not take the car to redline on the first day but I was told by the tech not to baby it unless you’re going to drive it like an old lady. So I drove it about 50 miles and then started to drive a little more spirited.

I shifted at 5000rpms and up to 6000rpms once so not to redline which is 7000rpms but believe me it is fast period amen!! The shifts are so fast it is unbelievable.

Let me clear up what I meant as far as the GT-R not being a good drag car platform. It is heavy car in the same manner as the Mustang GT500, New Challenger and the upcoming Camaro are but the GT-R is much lighter on its feet and you would know that the second you drive it.

These new muscle cars will never be as good as let’s say an old 67 Camaro or Fox body Mustang for Drag racing. They are too heavy. I'm used to drag racing cars that have had lots of weight reduction and run in the 9's. So an 11 sec car is not what I call a drag car especially a full weight interior car such as the GT-R. At a stop light this car will be hard to beat. It is a rocket out of the hole! I do think with just a boost increase an Intake and exhaust the the GT-R could be a high to 10sec car in the qtr mile for sure. Now for some that is a pretty fast street car but I think Like the Z06, the GT-R will do a lot of things good stock and some things great as I said before but drag racing is not what one should buy a GT-R for. For me same goes for a 997TT Porsche. Yes it’s fast in a qtr mile but it is not a drag car in the true sence.

Oh the other thing that really stood out was the speed...you don't feel it! I mean for example when I'm in my Z06 and let’s say I'm going 60mph. I know I’m going that speed. I was driving on a crowded highway today with the GT-R cursing out loud at the traffic in front of me because it seemed as though they were crawling along at 30mph when I looked down at the speedo and I'm going 75mph! This car going 40mph feels like it is going 5mph. It is weird and I've driven a lot of cars in my time. BTW the driver’s seat is awesome. Nissan did a great job with this car IMO and it takes a lot to impress me. It is just different and I can't explain why just yet. I think Nissan is losing money on this car IMO. I drove a brand new M3 last week and I would take the GT-R over the M3 in a NY minute unless of course I needed a real 4 seater.

I kind of feel like the first day I got my iphone. A little intimidated buy all the electronics but I'm sure I'll get it all figured out in no time.

More updates and Videos to come

BLOODTA

iTrader: (19)

So you do have pics of your GTR and C6 Z06, correct?

whatsgrip?

gotcha

I hate the front end but DAMN! that rear end looks sexy

Thomasio

http://www.youtube.com/watch?v=sbg89...88356&page=133

http://www.youtube.com/watch?v=s-9v8...88356&page=133

Both are completely stock.