Nissan 370Z Forum - View Single Post

travisjb · 05-03-2009, 08:43 PM

Okay, so the second trackday never really happened ! but I don't want to revisit that old thread and figured I'd start a new one ! So here we go:

location: PIR in phoenix, az
Phoenix International Raceway - Trackpedia
conditions: sunny, 94f
event: nasa hpde4... 4 runs about 20 mins each

Just got home - first, this car is SOOOO much fun to drive when you don't have to worry about overheating ! Lots of control, feels very stable whether I was hanging it out occasionally in the carousel or blasting through the nascar turns on my way to ~120 in nascar straight ! I gained a lot of time going fast through bendies and deceleration zones b/c the car gave me the confidence to hold speed... acceleration was prob less than average for the group I was running with, lots of cars with weight / power ratios in the 6-10 lbs/hp range, but this car held it's own...

First three sessions I only saw max of 255F oil temp, last session I did see 260F... I think I'm going to upgrade to a bigger core than what stillen included in the kit - would like to see them offer two variants, one with an even bigger core and perhaps longer lines so it can be mounted drivers side... which is similar to the technosquare kit i believe

Stillen sway bars performed well, I could feel that the left and right were tied together... I ran firmest setting in the rear, and it wasn't tight enough... Recommend that anyone going with the Stillen sway bars select the tightest fitment for rear for sure... I look forward to getting my bc racing coilovers from DDM - I think I lost some time accelerating in transitions due to body roll... I could also tell the tires were taking abuse with the stock camber settings, they were def rolling over and getting excessively hot on the outside...

The engine performed well... others have complained about the vibration, but to me that's just another form of feedback from the car that tells me where my RPMs are at... I'm happy ! The stillen bolt on parts helped with the power and I could accelerate some in 4th on the big straight... I still want another ~15-20% in power/weight... I owe everyone an updated dyno, but I'm guessing based on where others are at with the same mods that I'm putting down about 305 right now... If I can get to 330 and lose 100 or so lbs on the car and my fat ***, then I should be in the sweet-spot for this chassis and my driving skills

Sound of the car!!!!!! don't know what to say other than WOW... I really love the way it sounds with the full Stillen kit, and I think folks standing around the track enjoyed it too !

People have talked about getting a different final gear, but for this track, gears seemed to be PERFECTLY matched and I was shifting in all the right points... I think I'll pass

I am very frustrated with the mass/momentum of the flywheel... I'm convinced this is the source of my overrevving situation on upshifts... I've managed to get my timing down to where that's minimized, but it is still there even if I dump the accerlator 100% before pressing the clutch... lightweight flywheel will be added to my list

LSD... breakaway is predictable and controllable, but I think it can be better... new mech LSD remains on my list, but not a high priority

Tires held up okay... I've always been a fan of these since I ran them on my old boxster, but it's time to upgrade to some real track tires... if DDM can get those forgestar guys moving, I hope to have a set of 18s + R888s next time out (prob July)

Lots of folks coming up to the car for looks and discussion... and here's the best part ! I think I got a lot of attention in the fourth and final session when I hung with a GTR for two laps and then PASSED IT ! Corner workers were clearly pleased... I managed to get about 10 car lengths ahead before the session ended... woohoo... I think I may have pulled a time in the 1:15s in this session, but I'm not certain - didn't have anyone timing... earlier sessions I was clocking consistently between 1:16 and 1:17... here are some of the top times at this track NASA Time Trial

No video from me guys - sorry... I have a chasecam and traqmate on order through Shariff, but those won't be hear for a week or two... There will be videos and pics that other people take, and I will post them here and in my gallery once that happens TravisJB Journal

All for now

05-03-2009, 08:43 PM	#1 (permalink)
travisjb A True Z Fanatic Join Date: Jan 2009 Location: GSO Posts: 2,803 Drives: VIR Rep Power: 188	Third trackday! All is good! Okay, so the second trackday never really happened ! but I don't want to revisit that old thread and figured I'd start a new one ! So here we go: location: PIR in phoenix, az Phoenix International Raceway - Trackpedia conditions: sunny, 94f event: nasa hpde4... 4 runs about 20 mins each Just got home - first, this car is SOOOO much fun to drive when you don't have to worry about overheating ! Lots of control, feels very stable whether I was hanging it out occasionally in the carousel or blasting through the nascar turns on my way to ~120 in nascar straight ! I gained a lot of time going fast through bendies and deceleration zones b/c the car gave me the confidence to hold speed... acceleration was prob less than average for the group I was running with, lots of cars with weight / power ratios in the 6-10 lbs/hp range, but this car held it's own... First three sessions I only saw max of 255F oil temp, last session I did see 260F... I think I'm going to upgrade to a bigger core than what stillen included in the kit - would like to see them offer two variants, one with an even bigger core and perhaps longer lines so it can be mounted drivers side... which is similar to the technosquare kit i believe Stillen sway bars performed well, I could feel that the left and right were tied together... I ran firmest setting in the rear, and it wasn't tight enough... Recommend that anyone going with the Stillen sway bars select the tightest fitment for rear for sure... I look forward to getting my bc racing coilovers from DDM - I think I lost some time accelerating in transitions due to body roll... I could also tell the tires were taking abuse with the stock camber settings, they were def rolling over and getting excessively hot on the outside... The engine performed well... others have complained about the vibration, but to me that's just another form of feedback from the car that tells me where my RPMs are at... I'm happy ! The stillen bolt on parts helped with the power and I could accelerate some in 4th on the big straight... I still want another ~15-20% in power/weight... I owe everyone an updated dyno, but I'm guessing based on where others are at with the same mods that I'm putting down about 305 right now... If I can get to 330 and lose 100 or so lbs on the car and my fat *, then I should be in the sweet-spot for this chassis and my driving skills Sound of the car!!!!!! don't know what to say other than WOW... I really love the way it sounds with the full Stillen kit, and I think folks standing around the track enjoyed it too ! People have talked about getting a different final gear, but for this track, gears seemed to be PERFECTLY matched and I was shifting in all the right points... I think I'll pass I am very frustrated with the mass/momentum of the flywheel*... I'm convinced this is the source of my overrevving situation on upshifts... I've managed to get my timing down to where that's minimized, but it is still there even if I dump the accerlator 100% before pressing the clutch... lightweight flywheel will be added to my list LSD... breakaway is predictable and controllable, but I think it can be better... new mech LSD remains on my list, but not a high priority Tires held up okay... I've always been a fan of these since I ran them on my old boxster, but it's time to upgrade to some real track tires... if DDM can get those forgestar guys moving, I hope to have a set of 18s + R888s next time out (prob July) Lots of folks coming up to the car for looks and discussion... and here's the best part ! I think I got a lot of attention in the fourth and final session when I hung with a GTR for two laps and then PASSED IT ! Corner workers were clearly pleased... I managed to get about 10 car lengths ahead before the session ended... woohoo... I think I may have pulled a time in the 1:15s in this session, but I'm not certain - didn't have anyone timing... earlier sessions I was clocking consistently between 1:16 and 1:17... here are some of the top times at this track NASA Time Trial No video from me guys - sorry... I have a chasecam and traqmate on order through Shariff, but those won't be hear for a week or two... There will be videos and pics that other people take, and I will post them here and in my gallery once that happens TravisJB Journal All for now Last edited by travisjb; 05-03-2009 at 09:06 PM.*