Can you please elaborate further on this. Although what you are saying makes sense, it doesn't hold true in application (at least as I understand it). What Max said is correct, 7psi on a GT30 will flow more air than 7psi on T25.
Forced induction does exactly what you said, "increase the pressure" within the cylinders. Although you cannot change the volume of the cylinders, you can change amount of air being forced into that cylinder. Back to the example (and without looking up the actual flow charts of the 2 turbos) lets say a t25 flows 225 CFM @ 7psi, and the gt30 flows 300CFM @ 7psi. The larger turbo is able to "force" (or pressurize) more air into the cylinder, at the same psi (but possible at times - RPM - due to turbine size/wheel )
Maybe I am missing something somewhere. I am not trying to argue, just want to expand my knowledge, and correct my way of thinking if I am incorrect. If you have Corky Bell's book, Maximum Boost maybe you could point me something I need to re-read
Also the guy who said rich a/f could cause a rod to snap please leave. your ignorance is not welcome here. Rich AFR's will save a motor, you are thinking of lean afrs
You are clueless. Rich AFR's can still blow an engine if you run too much timing. I've SEEN IT!
You are clueless. Rich AFR's can still blow an engine if you run too much timing. I've SEEN IT!
you just said it yourself... then its bad timing thats killing the motor not the rich afr
and you dont even have an ms6 so why are you being a troll?
So you are going to hope that the last thing that you were calling me wrong on will simply go away?
You are the first person who has called me "Wrong" in over 8 Months... Perhaps that's for a reason Maxx...
I still think you're wrong even after reading all the explanations. It doesn't make sense to me. Sure the engine can only deal with so much air (as much as it and it's intake system can contain) but even still a larger turbo can deliver more air per pound of boost. I showed that a few posts back.
I think what you're thinking is that no matter how much air the hairdryer can blow, the engine can only "process" or "use" so much of it, and therefore 18psi is 18psi. I just don't see that.
Agree to disagree?
So nobody is going to answer my question:
How did not having a tune kill this Speed6?
If you read back most of the likely causes are there.
There is no way to know because there was no Data-Logger...
I believe that it was a combination of bad luck and an oversight in the install. It could have easily been a bum motor, but I do think that somehow the car went really lean, detonated and blew a rod.
It's not only bad timing, it was agressive timing (for that bosot level) WAY too much boost, and both of those would have contributed to the temperatures inside the engine. The advanced timing helps to cool it a little, but that much boost pressure was simply too much.
How am I being a troll?
So nobody is going to answer my question:
How did not having a tune kill this Speed6?
I think he overboosted since it was the first time he got on it. I dont think it
was because of not having a tune but not having COMMON TURBO SENSE!!
If you're A/F ratio was running super lean (which an untuned monster of a turbo, with no fuel upgrades could do), detonation could have been bad enough to blow your rod. Your injectors/fuel pump can only flow so much gas, but the air is unlimited. Sucks, but is a possibility...