490whp and it blew up? WTF
Same tuner 3 blown engines
- Thread starter Ignotbullet
- Start date
What was the pulley/damper combo on that 3.6 KB car?
490whp on 9# of a 3.6 KB? Something just doesn't seem to add up with this setup ?? If this blew up there were some major detonation issues possibly some really bad gas?
http://m.youtube.com/watch?feature=plpp&list=PLF05E79FBB5C15A6F&v=sRBAmLttzHo
Here is the link to the car that made 490 at 9psi
Here is the link to the car that made 490 at 9psi
I agree. Perhaps it was a 2.8? Correction. Watched the video. Definitely a 3.6 and a large pulley. The dyno shows two runs. One at 9# and one at 14#'s. Not sure the difference as they appear to be the same pulley. Maybe a low rpm run or something. Either way, 14#'s through a 3.6 is definitely on borrowed time.....
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Anyone want to try and disagree that it didn't make 490 or that is was a 3.6 please watch the video
Lol, it has a pull at 14psi on the video. So 9psi that you put in your OP is not the whole story, as is usually the case.
Basically comes down to, more boost/power is tempting, but there are limits and the user has to understand the risks.
All cars have stock engines and make killer low end torque. No surprise here no matter what tuner it was. My car is Lund tuned on pump gas and makes 640whp and only 511wtq with the stock engine. A centrifugal blower has a lot less stress then all the combos listed above. I beat the car like it owes me money.
It was only put at 14psi for a short time but spent 95 percent of its time on 9 psi and it blew up at 9psi not 14
+1 ha
So the engine was damaged when it was pushed way beyond its limits but everything should be ok because you lowered the boost?
Doesn't matter if it blew up at 5psi, if prior damage is done from pushing it to far it is only a matter of time. An overstressed rod from running 14psi that lives but is weakened will not hold up to lower boost like a good condition stock rod will.
I did not once blame anyone I just clearly stated the facts and let people make there own analysis no matter how they decided.
Dyno Dynamics
I appreciate the post. After all its what the forum is all about, sharing information. As I'm breaking my motor in and deciding which way I want to go with mods. I am considering the Roush 421388 kit because of the warranty. I've always thought it wise to not push stock components beyond a reasonable expectation. It's pay me now or pay me later, if these were aluminators we probably wouldn't be having this discussion.
This response makes me question your earlier one:
It doesn't matter what the motor was doing when it finally let go, that other 5% can be devastating and take it's eventual toll. Not sure there was really a need for a thread unless all of the info was there so it would be helpful for people to judge what level of risk they feel is comfortable on the stock motor. With all the info given it is helpful.
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I'm not doubting you OP. I'm just saying 490WHP on 9#'s seems really low and obviously the 14# is pushing the car beyond the limits. Who knows, there is a reason I went with AED Shaun & Adam (Rev Auto) seem to be the most picky, most attention to detail, and tend to make the most power. If your buddies had X tune and both blew up why would you get one and or stay with it ?
If it was a tune issue I suspect there would have been a piston failure..
Thrown rod = making too much power for stock rods
durr
Thrown rod = making too much power for stock rods
durr
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