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09-27-2015, 04:11 PM | #23 |
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Makes sense why the thread was removed, that's good to know. I'm still hesitant to do the mod if it could lead to something bigger breaking. That's what i'd like someones thoughts on.
Sorry, I don't yet know if I "overrevved" the motor. The revs were definitely high. When I looked down they were in the 8K range. Hoping the dealer can answer that. To answer the question about the JB4, I removed it before taking it to the dealer, because yes there would be an issue. Hope to be able to share more details soon. |
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09-27-2015, 07:12 PM | #26 | |
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Last edited by kitesurfer; 12-07-2015 at 02:18 PM.. |
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09-27-2015, 07:53 PM | #28 | ||
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09-27-2015, 08:32 PM | #29 |
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How can a stock n54 hold more power than a S55 without breaking sounds like BS. If this can happen to a stock motor then I say let the motors blow and let BMW pay for new motors and upgraded parts to prevent this from reoccurring. Adding 50 whp over stock with a jb1 and causing the motor to blow also sounds like BS, sounds like scare tactics to sell parts to people that don't know any better.
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09-27-2015, 09:42 PM | #30 |
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No one said you needed to buy this part? It's always been totally in your hands. The fact you feel obligated is your issue not ours. As stated , a million times , we had this issue. We had this issue happen to us, many times. We decided to fix the issue and offer it as an OPTION to the public. If you choose not to use it, no problem. This isn't a million dollar idea, in fact if you do the research on the parts used and machine work cost to make. Our profit is next to nothing. So before you go all high and mighty calling BS , maybe you should simply say, thank you. Thank you for providing us with an option if we so choose.
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09-27-2015, 10:57 PM | #31 | |
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Let me put it another way. It isn't in TPG's best interest to use scare tactics, given their pretty solid reputation (look it up). There's no incentive for them to do that -- just isn't there. Especially not for a $400 part that might get sold to a handful of people. Let's at least all be a little logical here.
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09-28-2015, 12:16 AM | #32 |
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One thing in the TPG thread that didn't make immediate sense to me was how they explained the problem was more prevalent on a tuned engine. They said that the forces put on this part was higher on a tuned engine.
The part in question drives the camshaft chain. The forces that come into play is the inertia, friction and mechanical force needed to turn the cams and open the valves. From my understanding the cams does NOT need any more force to turn with higher power outputs. I can't really see any change here on a stock vs tuned engine... But I could be missing something here? |
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09-28-2015, 01:21 AM | #33 |
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09-28-2015, 01:23 AM | #34 |
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I'll say it......Thank you......Thank you for providing us with an option if we so choose.
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09-28-2015, 01:25 AM | #35 | |
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You should have braked harder before downshifting. It is only associated with down shifts. There is no rev limiter on a down shift with manual transmission. DCT is not affected as it simply will not downshift. The car will look at you as if you are a moron and say, Hell no. I'm not doing that. LOL
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09-28-2015, 01:27 AM | #36 | |
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09-28-2015, 06:09 AM | #37 | |
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09-28-2015, 06:57 AM | #38 |
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I think this is solid product for those that decide to purchase it. I think the marketing is what needs improvement. The initial posts came across as an amateurish attempt to scare everyone into believing they needed this or their s55 was going to implode the next time they started it up. I applaud these guys for coming up with a solution for a problem that appears to affect some cars, in some situations. This type of ingenuity is what makes this industry great. That said, the delivery left a bad taste in the mouth of some.
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09-28-2015, 07:03 AM | #39 | |
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In the previous thread that was made, scare tactics were used even if not intended. Words from TPG should be better chosen next time. I am being logical . I have not heard of blown motors caused by this issue. I find it hard to believe even a stock motor would be affected by this. I do respect TPG for developing the part, but don't like some of the words used to market it.
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09-28-2015, 07:25 AM | #40 | |
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09-28-2015, 09:06 AM | #41 |
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Speaking as an engineer here I would add the following:
In many system designs, intentional weaknesses are included. This allows for a controlled failure in the event of an overload or other exceedence. In this case it appears all of the (limited) events that have resulted in this part failing have been mechanical overrevs resulting from an improper downshift. It could very well be that BMW intentionally designed this part to fail in this type of event to prevent other, more costly, damage from occurring. Beefing up the part in this case would simply transfer the damaging load to another portion of the system. Since we do not have the benefit of the knowledge that the original design engineers had we cannot be certain. It is wonderful to have the aftermarket exploring way to improve upon the design and I applaud them for sure. Just be careful that these effort are actually needed and that they do not simply shunt the load over to another, more costly, piece in the system.
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09-28-2015, 10:09 AM | #42 | |
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09-28-2015, 10:10 AM | #43 |
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Has this piece in question ever failed on a DCT car?
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09-28-2015, 10:16 AM | #44 |
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Well in this thread designed to document failures , it turned into a debate, an engineering lesson but I has yet to bear fruit of anyone coming on and saying they did have this failure .
So far it's still zero count afaik |
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