0 - 100kph Times

[09GTR]

That is truly fantastic! Congratulations.

How exactly does your engine make use of all this extra HKS "plumbing" to achieve these numbers without a new map? Or did I miss something and there is an HKS tune in the package?

What do you expect Cobb AP will do?

HKS system is a complete kit, comes with little piggy back setup and hi flow cats. I'm running very conservative boost level. Jap cars run 15 pounds. I'm running 14 most of the time. I used 16 pound setting to get that time time. Cobb system should give another 30 or so at wheel kilowatts. Makes you wonder how the Jap cars did 3.3 seconds stock, doesnt it? I've got 355 kw at the wheels, JDMs have around 310. That Launch control feature on the Jap cars must've been baaaaad...

[John D]

Well got see and hear this beast last night, OMFG. The workmanship of the HKS kit is second to none but very noisey BUT what a sound !!!! Can't wait to see how it goes once the rest of the mods are finished.

[GT-Ricer]

The HKS GT570 kit comes with a piggy back job, problem fixed, 16 pounds no problem, 355 kilowatts and 840 newton metres at the wheels...

Your car is truly impressive and goes like...a stock JDM car, just kidding.

Looking at CRD dyno graphs I doubt that your car is getting 840Nm at the wheels. The torque graph shows uncorrected 8300 N after and 7200 N before, which is +15.3% gain.

If the GTR comes from the factory with 588Nm torque, you add 15.3% and get 678Nm at the crank less 17.1% loss = 562Nm at the wheels, not 840Nm.

Power gain: graph shows 354.5kW after vs. 295kW before= +20% kW gain.

Starting with stock 357kW, add 20% and you get 428kW at the crank vs. 354.5 at the wheels = (-17.1%) loss thus confirmed.

But don't be disappointed by these numbers, you still have the fastest and loudest GT-R in Sydney and we are all jealous as hell!

Edited June 19, 2009 by GT-Ricer

[thrtytwo]

4.3sec-4.4sec 0-100km/h.

Seriously fellas, 370Z with a few mods would probably do that, or very, very close to that. For sure I know that an EVo-X would do 3.5sec 0-100km/h in FQ-400 guise. If my car is 30% slower than what Nissan advertised in 2007 and 2008, 3.3sec, then I would be seriously pissed of with them.

could be wrong but i think nissans quoted number was 3.5 - 3.6 ??? 3.3 is just what some independent testers found when they actually drove it

[npr35]

Hi Guys, I am new to this forum, so please forgive me if I have asked the wrong questions at the wrong forum.

I live in Melbourne and have had my R35 for 3 weeks and it has travelled 1536km.

It seems from this forum that BP98 is a better fuel for R35 and should avoid Caltex at all cost. What about Shell V Power? How does it compare to other? I have had 3 refuels with Shell V Power. Should I switch to BP98?

On other note, a friend checked the engine oil for me yesterday and noted that it is darker in color than his Nissan Maxima (has travelled 370,000km) which filled with Penzoil 0-50w fully synthetic engine oil at last oil change nearly 10,000km ago.

What is the best engine oil for R35? How much does it cost? Where do I buy them? Do I void my warranty by using engine oil, transmission oil and differential fluid other than those specified by Nissan? Thanks.

[LSX-438]

Hi Guys, I am new to this forum, so please forgive me if I have asked the wrong questions at the wrong forum.

I live in Melbourne and have had my R35 for 3 weeks and it has travelled 1536km.

It seems from this forum that BP98 is a better fuel for R35 and should avoid Caltex at all cost. What about Shell V Power? How does it compare to other? I have had 3 refuels with Shell V Power. Should I switch to BP98?

On other note, a friend checked the engine oil for me yesterday and noted that it is darker in color than his Nissan Maxima (has travelled 370,000km) which filled with Penzoil 0-50w fully synthetic engine oil at last oil change nearly 10,000km ago.

What is the best engine oil for R35? How much does it cost? Where do I buy them? Do I void my warranty by using engine oil, transmission oil and differential fluid other than those specified by Nissan? Thanks.

I dont know about avoiding Caltex 98 "at all costs" - that's a tad alarmist i reckon. I've been using it for months and never had an issue. I'm not suggesting all 98's are exactly the same, but i would think they are more likely similar vs being vastly different. With oils, your user manual lists all those "ordained" (eg. mobil 1 for engine). Are you getting the car serviced by Nissan? If so, i would hazard a guess you dont have much choice.

[Gibbo_R35]

This is a question for the guys that are measuring their 0-100 time with the performance box, drift box or similar. How far out are you finding your speedo. I invested in a performance box on Friday and have done a range of checks. I am finding my speedo is out by about 5km/h from about 57km/h on the speedo. Eg at 62km/h on the speedo I am doing 57km/h on the performance box. What are you guys finding? This is going to effect 0-100 times and also other "quoted" performance. I am running cmpletely stock setup with the Bridgestones.

I look forward to the feedback.

Edited June 21, 2009 by Gibbo_R35

[GT-Ricer]

This is a question for the guys that are measuring their 0-100 time with the performance box, drift box or similar. How far out are you finding your speedo. I invested in a performance box on Friday and have done a range of checks. I am finding my speedo is out by about 5km/h from about 57km/h on the speedo. Eg at 62km/h on the speedo I am doing 57km/h on the performance box. What are you guys finding? This is going to effect 0-100 times and also other "quoted" performance. I am running cmpletely stock setup with the Bridgestones.

I look forward to the feedback.

Using a "very sophisticated" GPS SPEED-O-METER App. on my iPhone, I noticed the same 5kph difference. GT-R over-reads the speed to compensate for not getting there fast enough...LOL

Edited June 22, 2009 by GT-Ricer

[Beer Baron]

from everything i've personally seen the original hard core launch on the JDM cars is quicker. I know they quoted quciker times from the version 2 cars but I have a suspicion that was just to tame peoples dissapointment at having the nice 4800rpm LC removed. on the JDM cars I've done it on they all launched very smoothly with some wheel spin and all pulled between 0.9-1.1G on launch according to the dash. no times from me but they were all insanley fast and smooth. I could be completely wrong though as the official word is the ADM cars have better launch, more power etc etc but the small amount of evidence i've seen seems to suggest otherwise.

as for speedo difference. every type of car i've tested with a factory calibrated speedo was between 5km and 10km out at 80kp/h. so it's pretty normal.

[09GTR]

I dont know about avoiding Caltex 98 "at all costs" - that's a tad alarmist i reckon. I've been using it for months and never had an issue. I'm not suggesting all 98's are exactly the same, but i would think they are more likely similar vs being vastly different. With oils, your user manual lists all those "ordained" (eg. mobil 1 for engine). Are you getting the car serviced by Nissan? If so, i would hazard a guess you dont have much choice.

I once dynoed a WRX STI with Caltex Vortex 98 and it was 30 kw down on power compared to a run with the same car on the same day with Shell Optimax. I've never touched the stuff since.

[jase-r34]

30kw? Holy crap! That would be enough to keep me away from it also...

[Gibbo_R35]

Guys after the most recent track day and then some 0-100 test I have found that since my car went into Nissan for the 2000km "tune" it seems to run slower. Main straight at the Creek I was struggling for speeds above 233km/h, before the 2000km service I was consistently seeing 237, up to 241.

0 -100 times are all around 4.4 second, I have got a 4.2 but I am getting the bog down off the line (hesitation). This was not there before the 2k service.

I am wondering if the Nissan guys have put a new tune through the car during this service...I will be hitting them up today on this.

[Beer Baron]

that is weird? what did they do to your poor baby!!!

[LSX-438]

This is a question for the guys that are measuring their 0-100 time with the performance box, drift box or similar. How far out are you finding your speedo. I invested in a performance box on Friday and have done a range of checks. I am finding my speedo is out by about 5km/h from about 57km/h on the speedo. Eg at 62km/h on the speedo I am doing 57km/h on the performance box. What are you guys finding? This is going to effect 0-100 times and also other "quoted" performance. I am running cmpletely stock setup with the Bridgestones.

I look forward to the feedback.

I had a TomTom satnav in the car the other day, and i noticed the car speedo read 5 to 6 km/hr higher than the GPS unit.

[Max_ST-R]

could be wrong but i think nissans quoted number was 3.5 - 3.6 ??? 3.3 is just what some independent testers found when they actually drove it

3.3 secs is the 0-60 mp/h time acheived, not 0-100 km/h. 0-60 mp/h = 96.5 km/h. Nissan Aus. initially quoted 3.5 sec 0-100km/h. They don't quote an official time from what I can see now.

[LSX-438]

Guys after the most recent track day and then some 0-100 test I have found that since my car went into Nissan for the 2000km "tune" it seems to run slower. Main straight at the Creek I was struggling for speeds above 233km/h, before the 2000km service I was consistently seeing 237, up to 241.

0 -100 times are all around 4.4 second, I have got a 4.2 but I am getting the bog down off the line (hesitation). This was not there before the 2k service.

I am wondering if the Nissan guys have put a new tune through the car during this service...I will be hitting them up today on this.

Are you using the same wheels/tyres? Also are you reading the speed from the speedo or drftbox? Could the difference we've seen with GPS units vs car speedo account for the top speed variance? Doesnt explain the 0~100 thing i guess.

[09GTR]

Guys after the most recent track day and then some 0-100 test I have found that since my car went into Nissan for the 2000km "tune" it seems to run slower. Main straight at the Creek I was struggling for speeds above 233km/h, before the 2000km service I was consistently seeing 237, up to 241.

0 -100 times are all around 4.4 second, I have got a 4.2 but I am getting the bog down off the line (hesitation). This was not there before the 2k service.

I am wondering if the Nissan guys have put a new tune through the car during this service...I will be hitting them up today on this.

Gibbo, this is strange. I doubt very much that Nissan have done anything untoward. They can adjust the clutch settings which will have an impact on take-off. I know GT-Ricer has had the same problem, and Nissan adjusted the clutch system in his car. All my 0 - 100 times were post the 2000 service. A mate of mine cracked a 3.8 out of the box in the wet the other night. That said, I have heard that these cars all perform a little differently. What were your times before the service?

ps. once the Cobb tune is in I am aiming for a sub 3 second 0-100 with my GT 570 kit. I'll take it to Eastern Creek to see if I can crack a ten second pass. Should be fun!

[GT-Ricer]

Gibbo, this is strange. I doubt very much that Nissan have done anything untoward. They can adjust the clutch settings which will have an impact on take-off. I know GT-Ricer has had the same problem, and Nissan adjusted the clutch system in his car. All my 0 - 100 times were post the 2000 service. A mate of mine cracked a 3.8 out of the box in the wet the other night. That said, I have heard that these cars all perform a little differently. What were your times before the service?

ps. once the Cobb tune is in I am aiming for a sub 3 second 0-100 with my GT 570 kit. I'll take it to Eastern Creek to see if I can crack a ten second pass. Should be fun!

I still have the same problem with take off. After my clutch adjustment I did 5 runs, all 4.11-4.14 sec, like clockwork, same hesitation followed by a surge.

I got my clutch reset back to factory after a few days. just not worth it. It was too creepy at slow speed, like parking against the back wall of my garage (scary!) and did not allow the car to rev past 1200rpm against the brake. Then I came home and strted experimenting with my stalling technique.

I can finally stomp on the gas really fast and get it to 3000rpm with my left foot hard on the brakes. So far I did it only in my driveway and I am yet to do another 0-100 run with this technique,

which I learned from you last week. Thanks.

Sub 3 sec, eh? Since you have already done 3.22 sec with the HKS piggy back ECU, why do you think the COBB AP can improve on what HKS did?

[09GTR]

I still have the same problem with take off. After my clutch adjustment I did 5 runs, all 4.11-4.14 sec, like clockwork, same hesitation followed by a surge.

I got my clutch reset back to factory after a few days. just not worth it. It was too creepy at slow speed, like parking against the back wall of my garage (scary!) and did not allow the car to rev past 1200rpm against the brake. Then I came home and strted experimenting with my stalling technique.

I can finally stomp on the gas really fast and get it to 3000rpm with my left foot hard on the brakes. So far I did it only in my driveway and I am yet to do another 0-100 run with this technique,

which I learned from you last week. Thanks.

Sub 3 sec, eh? Since you have already done 3.22 sec with the HKS piggy back ECU, why do you think the COBB AP can improve on what HKS did?

The HKS piggy back is just a boost over-run device with a boost controller. The Cobb custom tune will sort out fuel maps etc. I'm expecting 380kw plus at the wheels with the Cobb plus T1Sparrow rear pipe. This is similar to what the car is doing with similar mos in the states. Anyway, time will tell.

[GT-Ricer]

I recorded the following 0 - 100kph times using a GTech pro RR device (settings RRR):

Automatic mode with launch control 3.764 seconds -flat surface

Automatic mode with no launch control 3.900 - flat surface

Manual Mode with launch control 3.820 -flat surface

Manual mode without launch 4.064 - uphill

This is for an ADM, premium, 22 degrees.

Tests were conducted at the track.

When the HKS 570 kit and Cobb custom tune (Croydon racing developments) are installed next week, I will post the enhanced 0- 100kph numbers for comparison purposes.

Victory at last!

I managed to launch twice cleanly without LC by stabbing the gas very quickly, revs shot up to 2850RPM and 2950RPM, let go of the brakes and got 3.9 sec both times! 0-20 m 2.254 and 100m 5.278 sec.

I then managed to rev to 3000RPM, let go of the brakes, revs shot up to 3200RPM and got a neat 4.0 sec. Lastly, stalled at 2500RPM and it went back to 4.4 sec.

So it seems that the launch "sweet spot" is somewhere between 2850 and 2950RPM.

Auto trans with 3 "R" settings. Shell-V-Power and K & N Filter back in.

If the revs don't go up to 2900-3000RPM immediately, there is no point waiting : the clutches just start slipping as the revs try to slowly creep up from 2000RPM.

Disengage back to neutral and try again by stomping on the gas very quickly.

Thanks for the advice mate!