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Originally Posted by johnny98 are you referring to the A/F ratio being 11.0:1 or the compression ratio? either way, yea, i would have expected leaning the compression ratio out would give it more power. that is the general rule of thumb. that was the first thing they tried to do when tuning it, and it lost power and detonated like a muthaf***a. however, the more rich it got (up to 11.4), the more power it produced and without any detonation.
it was tuned on a dynojet, and the only thing i saw on the computer was a program called 'winprep' or something like that. |
Yes, guess the reason you got detonation when trying to lean it out was that 11.0:1 CR you are running. I am just wondering if they have a tad too much timing.
This is why I said, you cannot just throw parts at a car to make lots of power, unless the parts are matched real well. I am guess you called SHM, and asked for recommendations and this is what they gave you, so you bought it. I am still surprised that 11:4 is the leanest you could go, but with that CR, it limits you N/A. On a positive note, nitrous loves that type of CR, so if you were to go with this type of power adder, look out for the numbers then.
PS. I have seen 99/01 Cobras make 600+rwhp and 420+tq. Like I said, these things are not TQ monsters unless you have something on there like a 2.2L KB. I still say your numbers are not that far off. With a better tune, maybe 10 more rwhp.