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      06-04-2013, 05:15 PM   #23
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Quote:
Originally Posted by gmd2003 View Post
I had no problems at all with my headers with their NA tune with SS V2 headers . They are essentially the same as csl headers in design. Also the EAS test car for the 525 kit has headers that are non CSL and have had no problems . The whole Euro csl only stuff was silly excuse in my opinion . The individual who was having problems that everyone claimed was his headers , actually had a problem with his tune .
Good to hear you haven't had problems.

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.
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      06-04-2013, 05:38 PM   #24
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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
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      06-04-2013, 05:41 PM   #25
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Quote:
Originally Posted by Beedub View Post
should we be doing anything with the fuel regulator with this pump??? wondering if its possible to put to much fuel through the stock unit??

i have no idea if thats even possible just throwing thoughts around???
All depends on the tuning , thus I asked AJ from ESS and he said no. What other kits (Like VF) do with the stock pump at our power levels is downgrade the regulator to a 3.5 bar . The stock pumps flow capabilities drop way off at higher pressure so this relieves the load on it somewhat at the cost of fuel pressure. This is then sorted out with tuning, injector cycle etc. I liked the idea of putting a pump in that could flow enough with the stock regulator And the Aeromotive 340 handles high pressures better than almost anything! I was amazed that our cars run 72 PSI at WOT that means its 80 with our boost level! No wonder the stock pump shit itself during a wide open track session ( No way it was holding this pressure.
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      06-04-2013, 05:42 PM   #26
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Quote:
Originally Posted by pokeybritches View Post
Good to hear you haven't had problems.

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.
+1000 these DME's are a pain in the ass to tune!
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      06-04-2013, 05:42 PM   #27
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Does it make any funny sounds when its running?
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      06-04-2013, 05:45 PM   #28
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Quote:
Originally Posted by ZStig View Post
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
It will literally drop in, then straight to the bottom of the tank LOL. Seriously though it just needs an adapter to make it not fall through the stock basket as the stock pump has a neck on it that holds it in place. I posted a shop that makes one , but I did a custom attachment point. The key is to make sure you order a center inlet one no matter what brand you go with.
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      06-04-2013, 05:47 PM   #29
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Originally Posted by ZStig View Post
Does it make any funny sounds when its running?
Totally Quiet can not hear it in any situation. , "Disclaimer I have RE diablos and headers though lol!"
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      06-04-2013, 05:50 PM   #30
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Quote:
Originally Posted by ZStig View Post
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
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!
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      06-04-2013, 05:54 PM   #31
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Quote:
Originally Posted by seank View Post
She has 50,000 miles.




Wouldn't the best set- up for track be the 445 but with the 525 intercoolers and oil cooler upgrade? That combined with a lower thermostat should keep you running cool.
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.
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      06-04-2013, 06:10 PM   #32
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Quote:
Originally Posted by gmd2003 View Post
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.
I will be curious to hear the results.
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      06-04-2013, 06:11 PM   #33
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Quote:
Originally Posted by gmd2003 View Post
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!
But you can do crazy things to the timing to make more power
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      06-04-2013, 07:19 PM   #34
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So you have no idea what your AFRs are?
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      06-04-2013, 07:35 PM   #35
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Quote:
Originally Posted by Rated M Roadster
So you have no idea what your AFRs are?
Not with the 525 no I am installing my wideband when my mid pipe comes in from the DKF group buy . Was a little on the lean side from a dyno of my VT-1 , lots of trouble shooting ruling things out , research etc. led me to the fuel pump. Would have been much easier if I had the wideband to begin with . Lesson learned .
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      06-08-2013, 08:51 PM   #36
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Quote:
Originally Posted by pokeybritches View Post
Good to hear you haven't had problems.

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.
This is what Roman told me as well, to stick with the Euro/CSL headers because they cannot tune out a EGT or 02 light. He did say people have had pretty good luck with some supersprint headers but not 100%, its our damn DME. So thats why i don't know if its worth all the headache and extra money to "upgrade" thoughts??
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      06-09-2013, 01:07 AM   #37
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Quote:
Originally Posted by Str8 RippiN View Post
This is what Roman told me as well, to stick with the Euro/CSL headers because they cannot tune out a EGT or 02 light. He did say people have had pretty good luck with some supersprint headers but not 100%, its our damn DME. So thats why i don't know if its worth all the headache and extra money to "upgrade" thoughts??
Because you have a track car, you can install an alpha n and tune the car to your own specs.
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      06-10-2013, 01:02 PM   #38
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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.
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      06-10-2013, 03:01 PM   #39
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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.
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      06-10-2013, 06:17 PM   #40
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Quote:
Originally Posted by seank
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.
How would it make a difference if the cooling system is maxed out? If it does what I think it does, which is open up at a lower temperature, then there won't be any benefit. The car is already well above the temperature at which it normally opens anyway.

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.
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      06-10-2013, 07:06 PM   #41
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Quote:
Originally Posted by pokeybritches
Quote:
Originally Posted by seank
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.
How would it make a difference if the cooling system is maxed out? If it does what I think it does, which is open up at a lower temperature, then there won't be any benefit. The car is already well above the temperature at which it normally opens anyway.

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.
Where did you guys get water temps? He's talking about oil temps...
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      06-10-2013, 07:07 PM   #42
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Quote:
Originally Posted by pokeybritches View Post
How would it make a difference if the cooling system is maxed out? If it does what I think it does, which is open up at a lower temperature, then there won't be any benefit. The car is already well above the temperature at which it normally opens anyway.

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.
That is a good question. On my track car, I run a 30 degree lower thermostat. That being said, it does take longer to warm up (twice as long). The car runs 20 degrees lower on a 100 degree day. I THINK the difference is that it opens more, to allow more water to flow earlier. Earlier, allows more time before getting hot. The BMW radiators are more than sufficient at cooling, although some do not like that they use plastic.

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.
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      06-10-2013, 07:30 PM   #43
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Quote:
Originally Posted by Rated M Roadster
Quote:
Originally Posted by pokeybritches
Quote:
Originally Posted by seank
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.
How would it make a difference if the cooling system is maxed out? If it does what I think it does, which is open up at a lower temperature, then there won't be any benefit. The car is already well above the temperature at which it normally opens anyway.

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.
Where did you guys get water temps? He's talking about oil temps...
They are related.
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      06-10-2013, 07:36 PM   #44
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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).
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