Porsche questions GT-R Ring claim... - Page 2 - 3000GT/Stealth International Message Center

Kibwe Walker · 10-01-2008, 07:35 AM

Quote:

Originally Posted by Drweldin

I think by now it's pretty clear that Nissan has been
guilty of some shinanagins with the GT-R....the numbers
never added up...
I believe Car and Driver also accused Nissan of providing
"hot" test car(s)....basically suggesting the boost was
messed with.
Interesting article - thanks

Edit: And the Porsche spokesman was way too nice....lol

They had one GTR that didn't match the times of the other 4 they tested.

The response from neason was that the ECU was not the final version for production units. The most recent GTR they tested had the final ecu version in it and produced identical times to the 1st one they tested.

With a EFI car it is vary easy to make minor to massive changes in output just by changing stock timing, a/f ratios, and in a case of FI stock boost. C&D got a couple of GTR's on the dyno and IIRC they were hitting around 420 AWHP which I don't know how you would get from 480 crank hp through all the accessories and drivetrain that comes on that car.

The only thing Nissan is guilty of is lowballing the output numbers of the GTR. That car is pushing a good 5xx hp crank to be running those times in the 1/4 with those traps. Its nothing new, the terminator mustang was lowballed, Ford claimed 390/390 for them and they dyno 370-38x to the wheels, ford also low balled the ford GT, chevy lowballed the c6z06 I always believed that car to be closer to 550 hp than the 505 they were claimed at.

I don't mind lowball numbers, as the truth always comes out eventually. Its better than the alternative (overestimating output numbers). Look at all the rx8 owners scratching their heads about wheres my HP.

SkortchGT · 10-01-2008, 08:08 AM

The GTR is an extremely impressive car, don't get me wrong, however the reported performance was always a bit questionable.

It's not the first time Nissan has produced questionable performance numbers.

inperfectdarkness · 10-01-2008, 08:41 AM

^ i.e. anytime something they built is compared to a 3/s.

mikes2nd · 10-01-2008, 08:54 AM

damn Datsuns!

3000GT MR · 10-01-2008, 10:03 AM

i personally think nissan hasn't been testing production cars. they were such in a hurry to beat porcshe they probably did all they could in order to do so..

MustGoFaster · 10-01-2008, 10:11 AM

Quote:

Originally Posted by OBXboost

I think the answer is simple.

Have the Nissan driver take the Porsche cars out and show up their driver.

Winner. There are too many variables to take into account. Maybe the chassis engineer didn't put enough faith in the electronic handling aids of the GTR?

P.S. never been a huge GTR fan, maybe they did cheat.

i3igpete · 10-01-2008, 10:25 AM

Quote:

Originally Posted by OBXboost

Have the Nissan driver take the Porsche cars out and show up their driver.

running a 7:30 in a street car (porsche or not) means you're pretty damn good.

Brian GT PRO · 10-01-2008, 10:40 AM

In my opinion, there are far too many *what if's*. It is my belief that there needs to be some sort of rules governing this testing, which includes a battery of tests to make sure that the actual car being tested is what is being given to the consumer, if not, it needs to be stated as to what was different, make things fair. This king of the hill game they are playing is very misleading.

3KGTTusch · 10-01-2008, 02:40 PM

Quote:

Originally Posted by Brian GT PRO

there needs to be some sort of rules governing this testing, which includes a battery of tests to make sure that the actual car being tested is what is being given to the consumer

Damn straight, more so in recent years, manufacturers have been using ring times for publicity and show off their new cars. Well how the hell can anyone take them seriously, or for use in comparisons if there is not proof that is even the car you can buy. I think should be controlled just like anything else. No biased judges/testers etc.

Blue94VR4 · 10-01-2008, 02:45 PM

Quote:

Originally Posted by Ondontii

By his own words, the GTR is 20 kilos heavier. How does 20 kilos = 20 seconds slower then the porsche?
That sorta screws up his reasoning.

It's not 20, it's more like 200kilos. It's a typo in the original article. Nissan GTR ~3830lbs, 911 TT ~ 3500lbs. Given the same "claimed" output of 480HP, how can GTR beat 911 TT? It does not make sense to me, at least on paper. It would be nice to see independent tests though. I trust nether Nissan nor Porsche in this case.

10-01-2008, 08:08 AM	#12 (permalink)
SkortchGT Warning: I'm an asshole Join Date: Jan 2002 Location: Lehigh Valley, PA Drives: 1992 3000GT VR4 Trader Rating: (10)	Re: Porsche questions GT-R Ring claim... The GTR is an extremely impressive car, don't get me wrong, however the reported performance was always a bit questionable. It's not the first time Nissan has produced questionable performance numbers. __________________ 1992 3000GT VR4 --Completely rebuilt 5/06-4/07. Everything new. For a list see: http://www.3si.org/forum/showthread.php?t=372579 --First time on dyno: 364AWHP@16psi with a 10.3AFR (now tuned at 11.4-11.6 with timing control, time for another dyno run soon) --Mods: DR Stage I heads, 3rd gen lifters, TD04L 13Gs, DSM SMICs, PTE 550s, Apexi SAFC, Apexi SITC, Walbro FP, IPO hotwire, Robbeck adapter & AEM FPR, 3SX underhood fuel gauge, 3SX fuel rail loop, DN Y-pipe, HKS SSQ BOV, K&N FIPK, Greddy Profec Spec S, AEM WB02, Autometer C2 boost, egt, oil press & water temp gauges, MSD wires, NGK BCP7ES's, TEIN FLEX coilovers, Maximal performance control arms, solid engine mounts & powdercoating, RPS Streetmax Clutch, RPS Flywheel, NBT Tranny (cryotreated OS, shift forks & rails), updated speedo gear, solid shifter bushings, full 2nd gen brake conversion, 3SX SS brake & clutch lines, Carbotech Panther+ pads in the front & Bob Cats in the rear, 3SX clutch vac delete, EGR delete, vac reduction, Ebay DP, gutted pre cats, Bronze FN01RCs 5Zigen 18x8.5 + 30 offset, Pirelli P-Zeros, engine dress up kit, Bigtyla ground wire kit. --Daily Driver: 98 Malibu, 4cyl, auto

10-01-2008, 08:41 AM	#13 (permalink)
inperfectdarkness bane of unintelligence Join Date: Jul 2003 Location: Warner Robins Drives: dreaming of a TT ecu Trader Rating: (13)	Re: Porsche questions GT-R Ring claim... ^ i.e. anytime something they built is compared to a 3/s.

10-01-2008, 10:03 AM	#15 (permalink)
3000GT MR Verified Seller Join Date: Jul 2007 Location: stoughton Drives: with MR gears Trader Rating: (6)	Re: Porsche questions GT-R Ring claim... i personally think nissan hasn't been testing production cars. they were such in a hurry to beat porcshe they probably did all they could in order to do so.. __________________ 94 VR4 99 conversion with 6K HIDs and PIAA fogs, 17G/15G combo, FMIC, DN downpipe, 560cc, walbro 255lph hotwired, MR gears, RPS 6-puck clutch, fidanza flywheel, hybrid logger, dejon preturbo, MAFT pro. K&N and custon carbon fiber heat sheild, HKS ssq, blitz turbo timer, 18" TSW kyalamis wraped in proxy 4's, polished Y-pipe, polished strut bar,solid engine mounts, seattle short throw, vac line reduction, misc REAL carbon fiber trim and misc gauges..ect

10-01-2008, 10:40 AM	#18 (permalink)
Brian GT PRO The Mastermind Join Date: Aug 1999 Location: Fullerton, So Cal Trader Rating: (78)	Re: Porsche questions GT-R Ring claim... In my opinion, there are far too many what if's. It is my belief that there needs to be some sort of rules governing this testing, which includes a battery of tests to make sure that the actual car being tested is what is being given to the consumer, if not, it needs to be stated as to what was different, make things fair. This king of the hill game they are playing is very misleading. __________________ WWW.GTPRO.COM WWW.3000-GT.COM < COMING SOON!

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