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Stripped/caged 335i for track use - terrible idea?
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03-03-2017, 01:18 PM | #1 |
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Stripped/caged 335i for track use - terrible idea?
Yes, I know the E30s and E36s are lighter, more nimble, and cheaper to run....just hear me out!
For some backstory - I did European Delivery on Heidi (my E92 335i) back in March of 2007. Had saved up for years as a kid for the car, and had the time of my life picking it up in Germany, going through the Alps, and driving 150mph on the Autobahn. 10 years and 150,000 miles later, I still love the car as much as the day I picked it up! Due to the age and mileage of the car, it is no longer my daily driver (have an Acura TSX for that now). It is now my weekend car that also is seeing more HPDEs. I am getting fast enough now where I feel full safety equipment is needed (cage, harnesses, etc). So, this of course means cutting up the car. I figure I may as well strip the car to save weight....no going back! I would do all of this over buying an E30/36 because the car's backstory has created an attachment, I just can't fathom selling it! The only way I could justify selling it is if I start club racing and NEED an E30/36.....in which case I would start a new story with a new Euro-delivered 335i (I'm at least a few years from "reasonably" affording that). My question is - if I do get into club racing and end up needing to sell my car, would someone actually buy a stripped/caged 335i for dedicated track use? I have only seen one on the whole internet, let alone for sale! Obviously it would need a very upgraded cooling system. Thanks for the help!
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03-03-2017, 02:51 PM | #2 | |
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03-03-2017, 07:50 PM | #3 | |
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I guess the chances of finding a quality removable full cage would be low, so I would lose money on the cage when I cut it out (around $3-4k?), and I would have a net loss on sold aftermarket cooling parts (around $1k). Anything else I would lose other than depreciation and consumables? Mind you this is just a HPDE car for a current C-level (Intermediate) student. I wouldn't be actually racing it. I just want additional safety as I do hit 120+mph on some straights. Thought about a removable bolt-in cage with welded reinforcement plates for the contact points, but I'm concerned it won't provide adequate enough roll protection.
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-'07 335i coupe (build date 02/2007) - Space Grey/Black Dakota/Dark Burl - 6MT/ZPP/ZSP/Nav/CA/Heated Seats. Acquired in Munich 3/2007 via European Delivery. 16 years and almost 220k miles of pure joy!
-'06 911 Carrera S - Black/Black - Full Leather/Sport Chrono/Porsche Sport Exhaust/Nav - 80k miles. Acquired 1/2021. One needy old German car just wasn't enough! |
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03-03-2017, 08:05 PM | #4 | |
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You said club _racing_ but if it's just an HPDE/track car then the previous and above don't apply. I top 110 in intermediate on technical tracks and don't need a roll bar or cage but I've progressed far enough to make good use of race seats and they weren't possible without a four point. The car can't be returned to stock and all the parts were binned including hood and trunk. Sold the full leather sport interior (45K miles) for five hundred bucks and that's it. The rest couldn't be sold even though it was like new so it was thrown out right down to the sunroof, radiator, airbags, radio, speakers, door cards, etc.
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2011 E90 328i 6MT, BMW Aero, CF hood/boot, PI+CAI+RM+3IM+BPC, SS+CI528+ThermoTec+SS#1+2XBurns, AKG 75D eng/trans, Al/Delrin diff/RS, CM 850, UCP, CAE, AKG DSSR, DiffsOnline 3.91 30/90 LSD+BW cooler, C&R, Setrab, Accusump, AST 3-way+Swift, Aurora PR+BW spherical, Vorshlag CPs, M3 brace+UR bar, ARC-8 18x8.5, 255 R1R, RB/CSL rotors+cooling, 135i calipers, RS29, RT700, Safecraft, OMP HTE-R+804F+QD Superquadro, 6pt cage+FIA, Braille, RT DL1Mk3
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03-03-2017, 08:58 PM | #5 | |
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No point in gutting unless you're going to w2w and trailer the car. Remember it's always better to pick your class and build around that. Till then if you're just focused on improving safety for DE, I would pick up a HANS, take out the back seat (for weight), throw in Recaro Sportster type seats and use Schroth Quickfits. Last edited by 3002 tii; 03-03-2017 at 09:03 PM.. |
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03-04-2017, 12:15 AM | #6 |
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I say go for it! I am building one myself right now. In the next 2 weeks I am completely gutting the interior and I am installing Cobra Suzuka Pro GTs in side. I am doing a sunroof delete also. After that it is off to the race shop for them to build a half roll cage.
My goal is to drop the weight by 300 - 350 lbs before the roll cage goes in. Should be doable.
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03-04-2017, 01:40 PM | #7 |
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By the way I'm not knocking the 335i, great car and I certainly know how it feels when you want to take your car to the next level while you're on this DE high... but there' real practical considerations you should think about.
End of day do what makes u happy, all I'm saying is plan for the future. At least with the Quickfits you can always resell those after you know for sure you want to go full race car. But till then there's minimum downside risk. If the Sportsters are too expensive, then you can look at Corbeau's or something similar. |
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03-04-2017, 02:28 PM | #8 | |
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And sure you can drive a caged car on the street but ya'd hafta be an idiot....oh, wait....dammit....
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2011 E90 328i 6MT, BMW Aero, CF hood/boot, PI+CAI+RM+3IM+BPC, SS+CI528+ThermoTec+SS#1+2XBurns, AKG 75D eng/trans, Al/Delrin diff/RS, CM 850, UCP, CAE, AKG DSSR, DiffsOnline 3.91 30/90 LSD+BW cooler, C&R, Setrab, Accusump, AST 3-way+Swift, Aurora PR+BW spherical, Vorshlag CPs, M3 brace+UR bar, ARC-8 18x8.5, 255 R1R, RB/CSL rotors+cooling, 135i calipers, RS29, RT700, Safecraft, OMP HTE-R+804F+QD Superquadro, 6pt cage+FIA, Braille, RT DL1Mk3
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03-06-2017, 12:58 PM | #9 |
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Thanks for the feedback everyone! So it sounds like others here are not too concerned about a half cage or QuickFits being safe enough for DE (even for a high powered car like a 335i)?
My friend who is a HPDE instructor/Spec E30 club racer/German tuning shop owner recommended the half cage idea. He said reinforcement plates could be welded into the places where the cage is bolted in (like the E92 M3 GTS), and the cage could be removed and sold later with no (visible) damage to the interior if I upgrade to a full cage. I do have a fear of the car rolling and crushing my spine if I'm held upright by the seats/HANS if I only have a half cage though. He didn't seem to think the risk is huge of that happening, and I know he really knows his stuff. What are your thoughts? He isn't a fan of Quick Fits due to the angle of the shoulder harnesses (says half cage harness placement is much safer).
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-'07 335i coupe (build date 02/2007) - Space Grey/Black Dakota/Dark Burl - 6MT/ZPP/ZSP/Nav/CA/Heated Seats. Acquired in Munich 3/2007 via European Delivery. 16 years and almost 220k miles of pure joy!
-'06 911 Carrera S - Black/Black - Full Leather/Sport Chrono/Porsche Sport Exhaust/Nav - 80k miles. Acquired 1/2021. One needy old German car just wasn't enough! |
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03-29-2017, 05:00 PM | #10 |
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Even a half cage can be built properly to have enough room for head protection in case of a roll over. It's really about how you want it designed.
Also the E9x platform stiffness has significantly higher than E46 and E36. The E30 chassis behaves like a wet noodle when stock. Comparing E9x to earlier models really do not do it justice.
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