I'm assuming this is meant to be tagged in way down near the bottom of the thread somewhere? Correction method is SAE however we can use any of a number of correction methods and print out charts to suit, we are more than happy to provide ANY information you might want to confirm the authenticity and accuracy of the run - however this is pointless as some time this week we will better that figure with ease (IMO). The tuner got about 3/4 of the way through a higher boost run when I flagged him out of it as I could see the fuel pressure dropped suddenly (that issue is now 100% sorted). At this stage I believe there is more to be had but that could be wrong, we wont know until we try Did I say 465Kw? sorry I must have meant 466.542 maybe round that up to 467Kw :rofl: And that power reading is at the hubs, torque reading at the engine, noted that diff ratio is set at 3.7 not 3.69, this goes back a few years to when 3.7 was entered in error. It makes no difference in power output but is left at that for the comparisons on torque output. The car, the tuner and the witness (who no doubt wants to stay the hell out of it but is happy we didn't quite knock off his record):
All the voltages forgot where to go :rofl: Was only getting 12.4v to the pump, have got 13.1 now so should make a difference & I have sorted a couple of other little tweaks that should see it right. It's a 400Lph pump so that should be HEAPS of fuel, will be fitting the same to my own car as they are E85 compatible. Yes I might just cheat and run E85 just for shits n giggles - 1000000000Kws here we come :br::rofl: well maybe 400
Oh, and for the record aussie peeps, it was probably around 5-10 degrees C air temp when the dyno was run, so that could have a bearing on why this power run was so easy and so successful. Where they dyno is, they are having overnight temperatures of -2 tonight, and that run was after 5pm, and the sun might have even dropped off the edge of the earth ...
Hmm, drag strip has alot to do with grip, driver experience, and even drivetrain - I ran a 12.1ET with 285rwkw, and to date I know of no other vg30dett powered 300zx in NZ that has run faster, even though a few with 100rwkw or more have tried. The difference I made compared to others was big drag tires with low tire pressure, 7000rpm launch, and a "I don't care what happens" attitude.
I know what you're saying Eric and I'm thinking more or less the same - except for the drag strip. Maybe I'd run it at Taupo but Mere mere is getting hella scary, I've already done an involuntary lane change at about 140Kph on slicks, was lucky not to tap a wall or two. I wasn't trying to direct any nasty at ya, just saying if anyone wants to see charts corrected in what ever it can be done
And to prove my point I have a pile of slips right here next to me, back in 2004 with similar mods to foremannz car when he ran the 12.192 I was running fairly consistent 13.2 and 170kph. Nov 2010 with nearly 100Kw more at the wheels and still crap tyres 13.6 and about 170kph Way to many variables, track temp and condition, spring rates, shock rates, gearbox condition (my syns are rooted) diff ratio etc. Trap speed - hp calculations just don't work accurately consistently.
Well that is true I guess :rofl: they started the day with 100% tread brand new triangles and by the end of 17 runs they were down to slicks :rofl: With power levels this high there is no way in hell you can do a good run without a prepared track and slicks and really very little hope of doing it at the main track here in NZ. It has elevation changes that throw cars around something wicked
This. And this. Several slips from my own car and my dads old 350rwkw R33. My dads car did 12.3 @ 129MPH on street tyres (wheelspin galore), not long after it did 11.4 @ 127MPH but on MT Streets. As i wrote above my cars times ranged about 1.1 seconds yet mph was always within 2mph no matter what tyres or temperature it was. In any case that zed would still be pretty farkin quick, some MT streets on the back and it should tear the track up nicely.
Ah, you must be talking about the rollercoaster, sorry, Meremere. Tires play a MASSIVE part, more than shocks I think - the tires I was using, I also loaned to MungyZ, took more than a second off the ET with no other changes to the car. I was running them at 11psi though, a little low, but man oh man did they bite!
Right so further tuning with a healthy fuel pump netted 498Kws at the hubs, this is the same dyno and the same tuner that hit a similar wall with Mikes car at ~380Kws at the hubs. Mikes car was also confirmed on a rolling road dyno at Dr Repower in Tauranga - those who want to argue please ring Dr Repower and ask them for yourselves before dishing out slander and lies. Comparing apples with apples (or at least as close as can be - one might be gala and the other granny smith but you get the idea!) it does indeed look like these bigger pipe kits are the way to go for bigger numbers. So much so that to continue with this testing I'm going to fit a set to my own car and modify the intercoolers to suit - Mr sceptical has had to turn in to Mr surprisingly optimistic.
22PSI to get that power, that's all she had though it pretty much hit that point where you just can't push any further without being a rough bastard. Will post chart tonight
As I understand it it's more about volume of air per unit of time rather than the pressure they can supply. The turbos can go a lot more than 22 PSI yes but on this engine at that boost level they are working so hard to keep up we are starting to get some fairly warm air out of them, up to around 65 - 70 degrees c & at that stage we have the ECU set to start pulling timing back etc for safety. So yes you COULD run more boost but you wont get any more power, if you wanted to make a dyno queen run you can disable all the safety settings and fire 25PSI at it - I wont be doing that with a customers car though .... maybe my own if I felt like it but not a customers Bigger intercoolers would in theory net lower intake temps and therefore more power so long as the intercoolers were efficient, water meth injection would have a similar effect.
