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      06-20-2013, 07:19 PM   #89
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Quote:
Originally Posted by Rated M Roadster View Post
Yes, put the stock ones back cause detonation is ideal...
Sorry, I should have put one of these at the end
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      06-21-2013, 07:15 PM   #90
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What did you do around air filter to keep it high pressure?

I am puzzled by a few things:

-The 1 inch gap behind the oil cooler that will be high pressure

-and there isn't anything in the kit to close off the area around air filter.

The stock oil cooler has a piece around it that draws below the radiator, which keeps the radiator high pressure in front, oil cooler high pressure in front, and both have low pressure behind them.

I think some things need to be fabricated to maximize the cooling affects of the existing 525 coolers, and stock coolers.

DME is to arrive Monday at 12 and then she will be all done. At least for now.
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      06-21-2013, 11:40 PM   #91
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with all the headaches you're having idk if i should upgrade to the 525 kit anymore the upgrade it expesnice for starters then throw in fuel pump, spark plugs, possible radiator upgrade, plus less reliability and conistnecy on track...would you say its even worth it??

I have the VT1 445 Kit as of now
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      06-22-2013, 12:30 AM   #92
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I will start out by saying I have not removed the fuel pump from the fuel tank so it would certainly be self explanatory IF I did that, BUT, short of that...

Can someone explain to me how the pump "bucket" is retained in the tank? I see that the regulator mounts in the tank opening (with a screw cap), but the fuel bucket is a separate piece. What keeps it from rolling around inside the tank?
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      06-22-2013, 07:08 AM   #93
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Quote:
Originally Posted by seank View Post
What did you do around air filter to keep it high pressure?

I am puzzled by a few things:

-The 1 inch gap behind the oil cooler that will be high pressure

-and there isn't anything in the kit to close off the area around air filter.

The stock oil cooler has a piece around it that draws below the radiator, which keeps the radiator high pressure in front, oil cooler high pressure in front, and both have low pressure behind them.

I think some things need to be fabricated to maximize the cooling affects of the existing 525 coolers, and stock coolers.

DME is to arrive Monday at 12 and then she will be all done. At least for now.
1.Intake, The intake is well isolated in the bumper and since you will be FI now all that really matters is exposure to cool fresh air so I wouldn't worry about that .

2.) Oil cooler location: Yeah it being 1 inch in front of the radiator is not ideal at all especially for the radiator. Unfortunately bc the intercooler is so large there is no place to put it where it has no effect on the radiator and gets good clean air. The only solution which you suggested would be to fabricate ducting (Major PITA but the best option).

George
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      06-22-2013, 07:17 AM   #94
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Quote:
Originally Posted by Str8 RippiN View Post
with all the headaches you're having idk if i should upgrade to the 525 kit anymore the upgrade it expesnice for starters then throw in fuel pump, spark plugs, possible radiator upgrade, plus less reliability and conistnecy on track...would you say its even worth it??

I have the VT1 445 Kit as of now
Honestly it depends on how you are planning to use your car, your skill level on track, and your location. The issues I am having are directly related to how hard I'm pushing my car and the high temp and humidity of SC. I have only ever had problems on track so please don't think I am bashing the kit. No kit from any manufacturer comes ready for hard track use, hell most can't tolerate any. A guy I know with an AA E46 M3 550 has taken the better part of a year to get his car to run on track at all, and it requires meth water to do so. The ESS kit is good but they did not take into account changes to allow hard track use in hot climates. To do so would have raised the cost of the kit even more. The spark plug issue is major oversight IMHO but a cheap fix (They are 6 bucks a piece). The fuel pump is only a factor if your pump has high miles and again hard track use. The difference in power between VT-1 and 2 is major and for a street car is flawless as well.
George
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      06-22-2013, 08:19 AM   #95
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Quote:
Originally Posted by gmd2003 View Post
HA HA . I spoke at length with an NGK spark plug engineer and he recommended the DCPR9EIX part # 2316. It is an Irdium plug that is 1 step colder than stock. This is what many high horsepower FI E46 M3 guys have used successfully. My car is running stronger than ever with them in , and I have data logs showing my car running more timing with them vs stock. I am in South Carolina and it is hot as hell here though lol.
George

hey george, being doing some in depth research into plugs ect ect and learning lots of new pieces of info.... interestly VAC use an even cooler plug than the ngk expert recommended for "boosted" s54's....

your link is broken as i would have loved to have had a proper read up from NGK.

nice to bat some idea's around btw :-)

i go agree however the kit should imo DEFINITELY be coming with a new fuel pump.... And clearly plugs too.... i think with a few choice tweaks you can track this kit hard and enjoy it on track like you did with your VT1....

good luck on your FI path!! its great to have people pushing these kits to the limit!!
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Last edited by Beedub; 06-22-2013 at 09:15 AM..
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      06-22-2013, 10:55 AM   #96
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Quote:
Originally Posted by gmd2003 View Post
1.Intake, The intake is well isolated in the bumper and since you will be FI now all that really matters is exposure to cool fresh air so I wouldn't worry about that .

2.) Oil cooler location: Yeah it being 1 inch in front of the radiator is not ideal at all especially for the radiator. Unfortunately bc the intercooler is so large there is no place to put it where it has no effect on the radiator and gets good clean air. The only solution which you suggested would be to fabricate ducting (Major PITA but the best option).

George
Regarding number 1, I was more concerned with it dropping the high pressure in front of the radiator, due to having a large area for air to escape.
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      06-22-2013, 11:35 AM   #97
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Ah gotcha, that should be a negligible effect though at track speed though . If you want to fabricate ducting let me know I'm in lol.
George
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      06-22-2013, 07:23 PM   #98
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Just got the Zionsville radiator in , I'll post up some pics later .
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      06-26-2013, 08:15 PM   #99
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Zionsville radiator installed !

Ok so i've gotten the Zionsville radiator installed. It was a very clean fit despite being a 1/4 of an inch thicker core than OEM. The expansion tanks are aluminum vs plastic and it doesn't have a plastic frame on the bottom so the core is actually several rows taller than OEM as well. I certainly feel better about this radiator on track just on the fact it doesn't have plastic expansion tanks. So its thicker and taller than stock as well as being made of aluminum with slightly larger aluminum expansion tanks. ( Looks promising).
So I went out on the back roads to do some testing with my data logger. Temps and humidity have been sky high here in SC so a prime stress test environment. So with temps in the high 80's with near 90% humidity with the OEM radiator ( 80 water 20% coolant with Mocool) I was seeing water temps after 20 minutes of hard driving (revs continuously above 4k multiple pulls to redline) at the 210 mark with oil temps in the 220's . Yesterday it was 87 with 90% humidity and after the same testing (with Zionsville radiator / 100% distilled water and mocool) I was only able to get the water temps up to a peak of 197 with oil temps stable at 210. That's very encouraging ! Track testing forthcoming in late August.
George
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      06-26-2013, 08:26 PM   #100
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Great news! Great pics. Looks like it makes the most of the available space. Sounds encouraging so far. Wish you had a track day sooner!
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      06-26-2013, 09:35 PM   #101
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And you have A/C and it all buttoned up nicely? That is around $67 per 1 degree. You have to pay to play.

Looks great and we all appreciate you doing this.
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      06-26-2013, 09:52 PM   #102
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Quote:
Originally Posted by seank
And you have A/C and it all buttoned up nicely? That is around $67 per 1 degree. You have to pay to play.

Looks great and we all appreciate you doing this.
Thanks Sean , yes the AC is till hooked up and ice cold . No AC in Charleston is suicide lol. Yeah not cheap but necessary . Oh and the top end will get better after several tanks of gas ( retarded how slow it adapts) . With the colder plugs in ,mine pulls hard to redline and gives that oh shit I better lift feeling like my full bolt on M6
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      06-26-2013, 10:21 PM   #103
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looks like a fairly straightforward install!
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      06-26-2013, 10:58 PM   #104
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I installed the plugs you recommended but I don't have anything to compare it to.

BTW, are there any adjustments that need to be made to the bypass valve? Should it make a noise? If so, I don't hear anything.

Please keep us updated of the temp changes on track.
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      06-27-2013, 03:12 AM   #105
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Quote:
Originally Posted by seank
I installed the plugs you recommended but I don't have anything to compare it to.

BTW, are there any adjustments that need to be made to the bypass valve? Should it make a noise? If so, I don't hear anything.

Please keep us updated of the temp changes on track.
It is recirculating not blowing off so you will not hear much until you drive the car near redline and full boost . After lifting from full boost I can hear mine flutter some .
George
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      06-27-2013, 04:55 AM   #106
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Quote:
Originally Posted by gmd2003 View Post
Ok so i've gotten the Zionsville radiator installed. It was a very clean fit despite being a 1/4 of an inch thicker core than OEM. The expansion tanks are aluminum vs plastic and it doesn't have a plastic frame on the bottom so the core is actually several rows taller than OEM as well. I certainly feel better about this radiator on track just on the fact it doesn't have plastic expansion tanks. So its thicker and taller than stock as well as being made of aluminum with slightly larger aluminum expansion tanks. ( Looks promising).
So I went out on the back roads to do some testing with my data logger. Temps and humidity have been sky high here in SC so a prime stress test environment. So with temps in the high 80's with near 90% humidity with the OEM radiator ( 80 water 20% coolant with Mocool) I was seeing water temps after 20 minutes of hard driving (revs continuously above 4k multiple pulls to redline) at the 210 mark with oil temps in the 220's . Yesterday it was 87 with 90% humidity and after the same testing (with Zionsville radiator / 100% distilled water and mocool) I was only able to get the water temps up to a peak of 197 with oil temps stable at 210. That's very encouraging ! Track testing forthcoming in late August.
George
that's perfect!!! once ive put more miles on my car (say 20k) i'll add this as part of my preventative maintenance, this item looks like a lovely piece, how did you find install?? was it a complete nightmare or relatively easy?? fitment looks perfect, i love that it uses the stock quick release hosing... awesome stuff!! well done george... your paving the way here!!

thanks for the info on the cooler plugs, mine are en-route, I've had LOTS of miles on this car so looking forward to seeing if they make any difference...

my BPV is silent and very slightly audible from outside at 7900rpm gear changes.
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      06-27-2013, 01:58 PM   #107
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Quote:
Originally Posted by Beedub View Post
that's perfect!!! once ive put more miles on my car (say 20k) i'll add this as part of my preventative maintenance, this item looks like a lovely piece, how did you find install?? was it a complete nightmare or relatively easy?? fitment looks perfect, i love that it uses the stock quick release hosing... awesome stuff!! well done george... your paving the way here!!

thanks for the info on the cooler plugs, mine are en-route, I've had LOTS of miles on this car so looking forward to seeing if they make any difference...

my BPV is silent and very slightly audible from outside at 7900rpm gear changes.
It was a very easy install, we were even able to do it from up top (No bumper removal/oil cooler and intercooler remained in place. It truly is an almost OEM fit. You do have to trim one corner of the radiator shroud to make room for the larger expansion tank but thats it! Mine feels as fast as my M6 now different power delivery but as fast (And my E63 M6 has done 60-130mph in 8.28 seconds by the way). Be patient Sean you will get it sorted.

George
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      06-27-2013, 02:14 PM   #108
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I already asked this in another thread but are there any other/better radiator options for our cars? I think the Zionsville was designed with the standard Z4 in mind so a big/cooler option would be more beneficial?
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      06-27-2013, 02:51 PM   #109
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Quote:
Originally Posted by Str8 RippiN View Post
I already asked this in another thread but are there any other/better radiator options for our cars? I think the Zionsville was designed with the standard Z4 in mind so a big/cooler option would be more beneficial?
i dont think you COULD fit a bigger one in that the zions unit..... it looks thicker and taller to me and will dissipate heat better just down to the materials used.
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      06-27-2013, 03:38 PM   #110
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Quote:
Originally Posted by Str8 RippiN View Post
I already asked this in another thread but are there any other/better radiator options for our cars? I think the Zionsville was designed with the standard Z4 in mind so a big/cooler option would be more beneficial?
To be concise NO LOL. The Z4M uses the same radiator as the regular Z4 and the the non M E46, so this is a massive improvement over stock as my initial testing has shown. No one else makes anything for the Z4M and I have checked with everyone. As you can see from the pics a larger unit would not fit and the quality of this all aluminum radiator is excellent. Sure you could do major mods create a custom shroud , move the intercooler piping around , move the oil cooler etc. make exact measurements and have C&R build a custom one but hat would be a stupid amount of time and expense for minimal additional gain. Just driving around on the street my water temps stay in the 180's now and oil temps at 210 despite 90 degree ambient and near 100% humidity . You honestly don't want it any cooler than that.
George
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