Quote:
Originally Posted by sub_ETCS_ret
If I understand you correctly, if you have 550TQ and 550HP then that would be the ideal setup. 550TQ up to 5250 and the 550HP from 5250. Correct?
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Hey Sub,
I will add abit to it from my perspective. Let's take our car for example. Say it makes 400hp/400tq to the wheels. Now say you're on the fence about that full exhaust system you've been winking at for a month. Only problem is that it hasn't winked back because it's $2500+ install. And all you keep hearing is it makes ONLY 15-30 hp.Yet all of the fastest cars have Long Tubes. And so you finally breakdown and get them thrown on. Now remember your established baseline is 400/400. Now you're strapped back on the dyno. Say you made your pull and the conditions from your baseline pull are 100% the same as they are today. Now after this pull your "peak" number is 420hp/430tq. Nice gains but let's take a closer look at where your money was really spent.... If you take both dyno graphs and do a lay over, you get a better understanding of what is going on. An example would be let's say it made 300hp @4000 rpms on this pull. Now let's say your baseline pull had you at 275hp at the same rpms. From that one example you can gather from this is, while you ultimately gained 20 "peak" hp, you gained as much as 25hp "under the curve" also referred to as "delta gains", in this case it's 4000 rpms. The gains could be higher but that's what you're looking for. Peak numbers say one thing, but how much hp and tq you gained over the entire pull with the peak is by far the most important thing to consider... hopefully I was helpful.....