|
|
SUPPORT ZPOST BY DOING YOUR TIRERACK SHOPPING FROM THIS BANNER, THANKS! |
Post Reply |
|
Thread Tools | Search this Thread |
06-04-2013, 05:15 PM | #23 | |
Colonel
492
Rep 2,784
Posts
Drives: ESS/G-Power Z4M, VF Z4, 996tt
Join Date: Sep 2009
Location: Los Angeles
|
Quote:
There were multiple people that had problems with O2 sensor codes + ESS tune. I know one ran AA headers. I bought my SS V1 stepped headers off a car that had issues with an O2 code + ESS tune, where others have run the SS V1 without issue. ESS themselves said not to use anything but OEM Euro or CSL headers. Maybe ESS has since sorted out the tune.
__________________
|
|
Appreciate
0
|
06-04-2013, 05:38 PM | #24 |
instagram 997turbotom
296
Rep 7,381
Posts |
I wonder if this would be a good upgrade for the VT2-500 kit. I'm assuming you just drop it in, and the ECU adjusts?
I like that it can accept e85 applications. I'd like to eventually convert
__________________
|
Appreciate
0
|
06-04-2013, 05:41 PM | #25 | |
Colonel
356
Rep 2,176
Posts |
Quote:
George |
|
Appreciate
0
|
06-04-2013, 05:42 PM | #26 | |
Colonel
356
Rep 2,176
Posts |
Quote:
|
|
Appreciate
0
|
06-04-2013, 05:45 PM | #28 | |
Colonel
356
Rep 2,176
Posts |
Quote:
George |
|
Appreciate
0
|
06-04-2013, 05:47 PM | #29 |
Colonel
356
Rep 2,176
Posts |
|
Appreciate
0
|
06-04-2013, 05:50 PM | #30 |
Colonel
356
Rep 2,176
Posts |
Correct after approximately 50 miles I started making wayyy more power, so I obviously was having issues with my stock pump. If you go E85 you will def need it, it takes a ton more E85 to equal regular gas in energy content!
|
Appreciate
0
|
06-04-2013, 05:54 PM | #31 |
Colonel
356
Rep 2,176
Posts |
Agreed but I couldn't pay almost 4 grand and stay at the same power level. And you know you always want more!! I still should be running cooler than when I was completely stock , I will let you know. This weekend at Roebling its going to be a heat index of 95 with 89% humidity. A true test of cooling to say the least.
|
Appreciate
0
|
06-04-2013, 06:10 PM | #32 | |
enthusiast
48
Rep 1,695
Posts |
Quote:
|
|
Appreciate
0
|
06-04-2013, 06:11 PM | #33 |
enthusiast
48
Rep 1,695
Posts |
But you can do crazy things to the timing to make more power
|
Appreciate
0
|
06-04-2013, 07:35 PM | #35 | |
Colonel
356
Rep 2,176
Posts |
Quote:
|
|
Appreciate
0
|
06-08-2013, 08:51 PM | #36 | |
First Lieutenant
49
Rep 398
Posts |
Quote:
__________________
|
|
Appreciate
0
|
06-09-2013, 01:07 AM | #37 | |
enthusiast
48
Rep 1,695
Posts |
Quote:
|
|
Appreciate
0
|
06-10-2013, 01:02 PM | #38 |
Colonel
356
Rep 2,176
Posts |
94 degree 80% humidity VT-525 track testing
Ok so I took my car to Roebling this past weekend to test it out on track with my new fuel pump. The conditions were severe to say the least with ambient temps in the 90's with 80% humidity. The first session was cut short bc of an accident but noticed the improvement from the new pump immediately, no issues on the high speed turns with full throttle transition, and the car hit 145 mph on the straight starting from turn 9 at apex 90mph in 5th gear. (For reference i would start in 4th gear at the same apex speed and only reach 145 in similar temps with the Vt-1) So power was definitely there all good so far. I did notice the oil temps in the 250 range which is much higher than I was running with my Vt-1 kit with custom fitted E63 M6 oil cooler (I would never go over 230 oil temps). The afternoon sessions my oil temps continued to climb to the 260-270 range and i started having a limp mode kick in only at the end of the straight (after 12 seconds of full throttle acceleration. This could be avoided by short shifting into 6th gear but this considerably slowed me down. So it would seem the VT-525 is not sufficient cooling wise for hard track use in the South east . I will be trying to recreate the limp modes on the dyno with AFR logging to ensure there is not a tune issue, but this new problem is likely a vanilla temp limp mode. I'm just happy I was able to run it enough to get it overheated lol. Seriously though after I ensure the kit is healthy otherwise , I will work on additional cooling mods, i.e radiator options and even consider a larger oil cooler. even if I can get it to run stable at those temps, that is a bit high for my liking. The kit is a monster on the street though, and I want to make it clear if you are a novice or intermediate driver you will likely have zero problems with the kit. On the street the car stays in the 215 temp range even in hot conditions , driving aggressively. I am really pushing it hard, a sub 1:20 at Roebling road is an extremely quick pace. ESS did a fantastic job with smoothness and throttle feel . Even with my 4.10 gears the power is very controllable on track and the throttle mapping is a huge improvement over the VT-1. I will keep everyone posted on how things go.
|
Appreciate
0
|
06-10-2013, 03:01 PM | #39 |
enthusiast
48
Rep 1,695
Posts |
Have you considered running a lower temperature thermostat, like Bimmerworld and Turner install on there e46 m3's. It will make a significant difference. Just a thought.
|
Appreciate
0
|
06-10-2013, 06:17 PM | #40 | |
Colonel
492
Rep 2,784
Posts
Drives: ESS/G-Power Z4M, VF Z4, 996tt
Join Date: Sep 2009
Location: Los Angeles
|
Quote:
I have heard of some cars running 100% water at the track, but I would have to look into it before recommending it to anyone.
__________________
|
|
Appreciate
0
|
06-10-2013, 07:06 PM | #41 | ||
Captain
162
Rep 892
Posts |
Quote:
__________________
CURRENT ll F10 M5 l E85 Z4MR l I01 i3 REX SOLD ll E70 X5M l E85 Z4MR VF570 l E36/7 Z3MR l E36 328i |
||
Appreciate
0
|
06-10-2013, 07:07 PM | #42 | |
enthusiast
48
Rep 1,695
Posts |
Quote:
Using 100 octane will also help keep the temperatures down. It works so well, that I can let the car idle without a fan for at least 10 minutes on a hot day. I also know that they install them on all the race cars for Bimmerworld and Turner. I would personally call them to talk about it. http://www.turnermotorsport.com/p-3-...-degree-c.aspx All cars run water with Water Wetter on the track at the upper levels. No one uses coolant. I am personally scared to drive around anyone who has coolant in their cars on the race track. Coolant and tires don't mix at any speed, let alone high speeds. In HPDE coolant is expected, since they are beginner drivers. |
|
Appreciate
0
|
06-10-2013, 07:30 PM | #43 | |||
Colonel
492
Rep 2,784
Posts
Drives: ESS/G-Power Z4M, VF Z4, 996tt
Join Date: Sep 2009
Location: Los Angeles
|
Quote:
__________________
|
|||
Appreciate
0
|
06-10-2013, 07:36 PM | #44 |
Colonel
356
Rep 2,176
Posts |
Essentially using the motorsports thermostat does not increase the cooling capacity of the system it just starts the coolant out at a lower temp thus giving you more time until max temp is reached. The stock Z4M radiator is not the same as the one on the E46M3 it actually is from the non M E46 so there is definitely one upgrade i will be doing to increase the cooling capacity. I run 25% coolant 75% distilled water with water wetter bc my car sees a lot of street use and I'm paranoid about deposits in the head which the BMW coolant prevents. If the water temp is sky high it WILL effect oil temp even if the oil cooler is adequate. (I was over 220) So I'm going to try upgrading my radiator , adding the motorsport thermostat and running 100% distilled water with water wetter, before changing out the oil cooler I just payed big bucks for. ESS says the kit was track tested in Norway with air temps in the 70's and they saw oil temps of 240 even in those ideal conditions. Bottom line is if you plan on tracking this kit in a non Nordic country be prepared to add significant cooling capacity or deal with limp modes (on Track).
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|