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S-197 Mustangs
Got the saleen back from dyno #'s!!
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<blockquote data-quote="millerc73" data-source="post: 5533726" data-attributes="member: 38962"><p>True the stock enging has hypereutectic pistons, and small connecting rods but they are alot stronger than people give them credit for. Where a person can get into trouble is with the tune. If you have a tune that has a poor air/fuel ratio or too much timing for the octane of fuel that the person is using then you will have undue stress on these weaker parts. I feel that if you have a good tune and run good gas you can get away with making at least 500rwhp safely for an long period of time. Another reason why some folks say that 450rwhp is the limit, is that's what a few folks on the internet have said so they take it for gold. With a whipple or other twinscrew or roots supercharger you will have to make more boost than a person with a turbo to get the same rwhp due to the parasitic loss associated with superchargers, this will put more heat into the engine which can also cause detonation and catastrophic failure. If you have a good tune, you can make 500rwhp safely with a Whipple IMO, you probably wont make it with 10 PSI but it can be done. I chose a turbo but would have been satisfied with a whipple or KB also.</p></blockquote><p></p>
[QUOTE="millerc73, post: 5533726, member: 38962"] True the stock enging has hypereutectic pistons, and small connecting rods but they are alot stronger than people give them credit for. Where a person can get into trouble is with the tune. If you have a tune that has a poor air/fuel ratio or too much timing for the octane of fuel that the person is using then you will have undue stress on these weaker parts. I feel that if you have a good tune and run good gas you can get away with making at least 500rwhp safely for an long period of time. Another reason why some folks say that 450rwhp is the limit, is that's what a few folks on the internet have said so they take it for gold. With a whipple or other twinscrew or roots supercharger you will have to make more boost than a person with a turbo to get the same rwhp due to the parasitic loss associated with superchargers, this will put more heat into the engine which can also cause detonation and catastrophic failure. If you have a good tune, you can make 500rwhp safely with a Whipple IMO, you probably wont make it with 10 PSI but it can be done. I chose a turbo but would have been satisfied with a whipple or KB also. [/QUOTE]
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Got the saleen back from dyno #'s!!
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