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10-02-2012, 07:56 PM | #23 | |
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10-02-2012, 08:04 PM | #24 | |
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There is a place for a FI on our cars and it seems best suited for short or straightline events. |
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10-02-2012, 08:06 PM | #25 | |
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However, as previously mentioned it's all relative and there are different systems available which hold different standards of quality. It also depends on how far you plan to go which will dictate what mods and how much power you require. But to answer your question in short, yes there is a benefit to running a supercharger on the track. |
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10-02-2012, 08:23 PM | #26 | |
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But vendors don't need to worry about this because 95% of the owners on this board don't track their car and do care mostly about straight line speed. Those are the ones who are going to buy supercharger kits and be extremely happy with them. I've done 15 track events in the past year and 4 of them with the supercharger. I miss everything about being N/A at the track so I'm going back. But I will miss the extra power on the street. It is a ton of fun, but I enjoy driving my car at the track far more than on the street so I'm choosing what works best for me. And it's not just my kit. I've seen other supercharger kits having heat issues at the track especially those with DCT. My temps with the 535 kit have actually been pretty good at the track. Pretty much always on par with the N/A E9x M3's at the same events. I did six 25-minute sessions in 104 degree weather and never went into limp mode. The difference is I'm losing a lot of the extra power because of the heatsoak. I figure I'd rather drop the 100 lbs of weight that the supercharger puts on the front of the car at the track.
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10-02-2012, 08:39 PM | #28 | |
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10-02-2012, 08:48 PM | #29 | |
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10-02-2012, 08:49 PM | #30 | |
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In your case the system is operating as it should, the temps are holding which is huge for a non-intercooled system on the track. In my opinion that shows the kits quality. As far as heat soak, you will experience it whether stock or F/I but just to what level. Based on your needs you should definitely have a charge cooled system. This would greatly alter your experience as you would enjoy the power much longer before feeling drastic signs of heat soak. The extra weight is debatable but putting the car on a diet would offset this and give you an all around better track car. However, i assume this is also a street car and would recommend charge cooling your system instead of tearing your car apart. |
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10-02-2012, 08:54 PM | #31 | ||
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10-02-2012, 08:55 PM | #32 |
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I do have power delivery issues at the track. I haven't quite figured out what it is though. I feel a surge of boost coming in somewhere around 5-6k rpms and it totally upsets the car coming out of a corner. I have to be extra careful when increasing power out of a corner.
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10-02-2012, 09:01 PM | #33 | |
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10-02-2012, 09:06 PM | #34 |
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Yup ESS did an awesome job with that. This is why I went with their kit in the first place. I still strongly believe they make the best supercharger kits for the M3. Supercharging in general apparently is just not for me. It's just one of those things where I had to find out for myself. I like learning from personal experience.
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10-02-2012, 09:10 PM | #35 |
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It's really hard to say because I'm getting faster in general each time I go to the track because of more experience. My previous best time at Laguna was in the low 1:48's and that was before the supercharger. I ran the high 1:46 with the supercharger, but I also did 3 track days in between those 2 times at Thunderhill and Infineon Raceway so it's hard to say if I was faster because of the supercharger or because I'm just getting better as a driver. If I run slower times next time without the supercharger then I'll know the answer.
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10-02-2012, 09:18 PM | #36 | |
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10-02-2012, 09:22 PM | #37 | |
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10-02-2012, 10:55 PM | #39 | |
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10-03-2012, 02:42 AM | #40 | |
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You should keep your kit, upgrade to the stage two so you have cooling. It won't be heat soaked up top and your car will run much cooler. (8-10 Track events under my belt with the SC. Back to back to back, no cooling of, just run race gas.) Josh
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10-03-2012, 10:35 AM | #41 | |
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10-03-2012, 11:37 AM | #42 |
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Agreed with tightie. We've hammered our VF620 at numerous events like ETGP, MFest as well as HPDE track days in all sorts of weather conditions. M3 is at European Car GP today competing at Streets.
It's hard to imagine the experience anymore without the boost, its on a whole other level.
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10-03-2012, 11:51 AM | #43 |
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VAC has had some good experience: http://www.vacmotorsports.com/blog/tag/vf-engineering/
Seems the only real downside on supercharging a E9X is the cost. Not only for the supercharger but the big brake kit that will be a must with the increased power. And, then the suspension upgrade of course SLIPPERY SLOPE WARNING |
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