Quote:
Originally Posted by j2dad5389
Quote:
Originally Posted by Dav3
The real M4 GTS, we are talking about the bm3 tune which doesn't include water injection
Iirc, guy on YouTube dyno'd stock and bm3 gts tune back to back and there was a 40hp difference
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I'm talking about these cars rated from the factory. If they can all handle their horsepower numbers while sharing the same internals, why shouldn't a stock M3/M4 be able to handle a stage 1 tune. |
Well, it should but unfortunately it still spins on even base stock power numbers
The general consensus is that it spins because of overwhelming torque that the crank hub sometimes can't handle. So naturally, feeding it more power automatically increases the likelihood of it happening. Statistically speaking, the more tuned the car is, the higher the percentage of spun crank hubs. That's what the data indicates.
This said, there might be some argument suggesting that spun crank hubs in cars within the "OEM" power threshold, might be the result of user error (e.g.money shifting, very aggressive kickdowns on max settings and from high gear).
I DIY installed the CBC and am on BM3 GTS Tune. In theory, without abusing the car too much, I shouldn't have issues.