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      03-10-2014, 12:21 PM   #1
MPowerZ32
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VAC710 supercharger kit

710 crank hp. I didn't know this was available: http://store.vacmotorsports.com/vf-e...z4m-p2798.aspx

"VAC710 Supercharger & Engine System, Collaboration with VAC - Aftercooled high boost w/ built motor A.K.A. highest HP S/C kit available!
Setup for high boost, V3-SCI trim supercharger along with VF's air/water cooled cartridge (aftercooler) inside their cast intake manifold. OEM spring tensioner upgrade, complete high flow fuel system and dual-pumps, MAF-less conversion with custom ECU Software to accommodate this. (header is required)."
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      03-10-2014, 07:10 PM   #2
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They were suppose to come out with. Good luck getting it from VF after giving them all your money.
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      03-10-2014, 11:47 PM   #3
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Select it from the drop-down box at the top of the page.
Says:
"Price: Not Available"
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      03-11-2014, 04:29 PM   #4
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Quote:
Originally Posted by StickMon
Select it from the drop-down box at the top of the page.
Says:
"Price: Not Available"
Yeah bc it requires a fully built motor , low compression pistons , reworked head. ,special crankshaft , fully custom fuel system etc etc . Good luck ever getting that to run lol.
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      03-11-2014, 11:55 PM   #5
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Since it's going to be a built motor, a lot of variables will affect the pricing. I think this kit is custom config and pricing for each customer. Are there reasons to think VF/VAC can't get the kit to run properly?
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      03-12-2014, 01:24 AM   #6
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Quote:
Originally Posted by MPowerZ32 View Post
...Are there reasons to think VF/VAC can't get the kit to run properly?
One word: software
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      03-12-2014, 04:08 AM   #7
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Reasons? Yep. Some folks have ongoing software issues. Others couldn't get them to bother to ship product after it had been purchased. I know about two of those cases personally. So call me an educated skeptic.
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      04-09-2014, 04:15 PM   #8
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This is supposed to be the 710 kit on a z3m:
http://www.vacmotorsports.com/projec...hp?recordID=28
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      04-09-2014, 06:49 PM   #9
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9 lbs boost is too much and fuel pump pressure could be a problem - it is bound to be not very reliable and prone to "never " working the way it should - 500HP - buy a new M-5 or6
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      04-09-2014, 10:48 PM   #10
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I am always hearing about tuning the z4m. If you really want to mod it, get a stand alone for 3-5000 and tune it for anything just how you want.
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      04-10-2014, 12:24 AM   #11
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Custom tunes are much cheaper than full standalone and still retain factory features like DSC, TC, ABS, hill assist, etc. etc.
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      04-10-2014, 08:17 AM   #12
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I am confused, I read about aftermarket companies not being able to tune the car so instead I should get a custom tune and do it myself. If they can't do it how will I? If it's not that difficult why can't they do it? I do understand the custom tune may get the most possible out of my specific car but at a slightly lower level and much lower expense and hassle why can't they do a "standard" system? How could the custom tune be "much cheaper" than a full standalone?
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      04-10-2014, 08:47 AM   #13
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Quote:
Originally Posted by seank View Post
I am always hearing about tuning the z4m. If you really want to mod it, get a stand alone for 3-5000 and tune it for anything just how you want.
The problem is there are no standalone ECU's with harness's designed for the Z4M ( trust me I have looked extensively) .Our harness is very different from the E46M3. So you need to buy an ECU and pay for a full custom harness to be made, as well as the tuning. Sure it can be done but you are looking at 10k minimum bc of labor.
George
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      04-10-2014, 10:19 AM   #14
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Quote:
Originally Posted by David70 View Post
I am confused, I read about aftermarket companies not being able to tune the car so instead I should get a custom tune and do it myself. If they can't do it how will I? If it's not that difficult why can't they do it? I do understand the custom tune may get the most possible out of my specific car but at a slightly lower level and much lower expense and hassle why can't they do a "standard" system? How could the custom tune be "much cheaper" than a full standalone?
A custom tune would be purchased and done through an independent party (i.e. an experienced tuner). One such tuner goes by the name of Frank Smith. A custom tune can be either on the dyno (best case scenario as far as individually-catered performance for your car; which typically involves the client paying out of pocket to fly the tuner over to where the client resides, and the client also pays for the dyno/tuning session) or you could go with a remote tune (lower costs; which typically involves using datalogging hardware and software to record a bunch of vehicle parameters and other information required for tune-tweaking purposes, then the client and tuner keep sending log and tune files via email back and forth).

I myself went with a remote tune through Frank Smith, and he's helped my car tremendously. We're still going through the final phases of datalogging and minute tweaking of the part-throttle driveability, but the car has come a long way thanks to Frank.

The original supercharger tune provided with VF Engineering's kits were atrocious
My car ran like absolute crap. If I hadn't gotten the kit at a really good deal, I wouldn't have bothered putting up with their bullshit. Their customer service is horrid
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      04-10-2014, 11:30 AM   #15
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My car is at a much much lower tune than others but the limited interaction I have had with VF has been satisfactory.
The original tune for my application was too rich and kept tripping limp mode.
Their tech remapped my ECU and remotely installed it for me.
It seems to be working good so far since.

Quote:
Originally Posted by mfanatic325 View Post
A custom tune would be purchased and done through an independent party (i.e. an experienced tuner). One such tuner goes by the name of Frank Smith. A custom tune can be either on the dyno (best case scenario as far as individually-catered performance for your car; which typically involves the client paying out of pocket to fly the tuner over to where the client resides, and the client also pays for the dyno/tuning session) or you could go with a remote tune (lower costs; which typically involves using datalogging hardware and software to record a bunch of vehicle parameters and other information required for tune-tweaking purposes, then the client and tuner keep sending log and tune files via email back and forth).

I myself went with a remote tune through Frank Smith, and he's helped my car tremendously. We're still going through the final phases of datalogging and minute tweaking of the part-throttle driveability, but the car has come a long way thanks to Frank.

The original supercharger tune provided with VF Engineering's kits were atrocious
My car ran like absolute crap. If I hadn't gotten the kit at a really good deal, I wouldn't have bothered putting up with their bullshit. Their customer service is horrid
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      04-10-2014, 12:53 PM   #16
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Quote:
Originally Posted by dbarton62
My car is at a much much lower tune than others but the limited interaction I have had with VF has been satisfactory.
The original tune for my application was too rich and kept tripping limp mode.
Their tech remapped my ECU and remotely installed it for me.
It seems to be working good so far since.

Quote:
Originally Posted by mfanatic325 View Post
A custom tune would be purchased and done through an independent party (i.e. an experienced tuner). One such tuner goes by the name of Frank Smith. A custom tune can be either on the dyno (best case scenario as far as individually-catered performance for your car; which typically involves the client paying out of pocket to fly the tuner over to where the client resides, and the client also pays for the dyno/tuning session) or you could go with a remote tune (lower costs; which typically involves using datalogging hardware and software to record a bunch of vehicle parameters and other information required for tune-tweaking purposes, then the client and tuner keep sending log and tune files via email back and forth).

I myself went with a remote tune through Frank Smith, and he's helped my car tremendously. We're still going through the final phases of datalogging and minute tweaking of the part-throttle driveability, but the car has come a long way thanks to Frank.

The original supercharger tune provided with VF Engineering's kits were atrocious
My car ran like absolute crap. If I hadn't gotten the kit at a really good deal, I wouldn't have bothered putting up with their bullshit. Their customer service is horrid
As you know, I have the same issues (rich tune, stalling in cold weather). I have had the car stored, so I haven't tried to correct them. I was given the option to ship my ECU to them (I would pay, and take the risks associated with shipping the car's brain) or buy their cable for a few hundred dollars. I kinda feel like I'm paying twice and have had to deal with the issues in the meantime.

When I initially sent my ECU to them, the turnaround was acceptable. Responses from technical support have been mixed. I have had a few outstanding responses, and other times I've been ignored releatedly.
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      04-10-2014, 02:08 PM   #17
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Quote:
Originally Posted by pokeybritches View Post
As you know, I have the same issues (rich tune, stalling in cold weather). I have had the car stored, so I haven't tried to correct them. I was given the option to ship my ECU to them (I would pay, and take the risks associated with shipping the car's brain) or buy their cable for a few hundred dollars. I kinda feel like I'm paying twice and have had to deal with the issues in the meantime.

When I initially sent my ECU to them, the turnaround was acceptable. Responses from technical support have been mixed. I have had a few outstanding responses, and other times I've been ignored releatedly.
Josh, does yours actually stall? mine just went into limp mode in cool weather.
I have yet to run mine under load, I ran it at high revs for quite a long time after the remap was installed with no limp mode where before it would go into limp mode under the same conditions
Will know the whole story once it goes on the road in a few weeks.
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      04-11-2014, 04:39 PM   #18
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Dave,

It stalls in the sense that the car will no longer accelerate, rpm's bounce off idle, and it ceases to accept throttle input. It's accompanied by a dash full of lights, including an EML. I'll see if I can dig up a video.
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      04-11-2014, 04:44 PM   #19
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Exactly the same symptoms for me Josh.

Just need to get the exhaust back from coating and I can report if the retune by VF has worked.

Quote:
Originally Posted by pokeybritches View Post
Dave,

It stalls in the sense that the car will no longer accelerate, rpm's bounce off idle, and it ceases to accept throttle input. It's accompanied by a dash full of lights, including an EML. I'll see if I can dig up a video.
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      04-11-2014, 07:04 PM   #20
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Quote:
Originally Posted by gmd2003 View Post
The problem is there are no standalone ECU's with harness's designed for the Z4M ( trust me I have looked extensively) .Our harness is very different from the E46M3. So you need to buy an ECU and pay for a full custom harness to be made, as well as the tuning. Sure it can be done but you are looking at 10k minimum bc of labor.
George
I disagree. At the end of the day, it is just an s54. Remove the ecu and you can do anything you want to it. The ecu does not know what car it is in. Standalones have nothing to do with the other rolling up window or any of the other gadgets that are on a modern car.

AEM makes a unit. Andrew Lang, as well as many others, can wire it up for you in a day ($1000). http://store.langracing.com/aem-infi...gement-system/
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      04-11-2014, 09:38 PM   #21
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Quote:
Originally Posted by seank
Quote:
Originally Posted by gmd2003 View Post
The problem is there are no standalone ECU's with harness's designed for the Z4M ( trust me I have looked extensively) .Our harness is very different from the E46M3. So you need to buy an ECU and pay for a full custom harness to be made, as well as the tuning. Sure it can be done but you are looking at 10k minimum bc of labor.
George
I disagree. At the end of the day, it is just an s54. Remove the ecu and you can do anything you want to it. The ecu does not know what car it is in. Standalones have nothing to do with the other rolling up window or any of the other gadgets that are on a modern car.

AEM makes a unit. Andrew Lang, as well as many others, can wire it up for you in a day ($1000). http://store.langracing.com/aem-infi...gement-system/
Well VAC didn't think it was so simple , they essentially didn't want anything to do with the job, I asked a few months ago . You do have to hook up abs ,DSC sensors, various engine sensors etc and the harness and sensors are significantly different on the Z4M than the E46 M3 according to them( many more sensors bc if the more advanced ECU) . So while the new AEM infinity is plug and play on an E46 M3 S54 , it is useless in a Z4 M S54 without a custom harness . The AEM infinity can run the radio , nav etc which I would still want but the harness doesn't match up . I'm sure there are people that can figure it out but I seriously doubt it would be quick and easy by their response .
George
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