Quote:
Originally Posted by northbridge
i wanted to be btwn 325 and 350. I've seen blueprint dynos for NA cars with K series motors around 330whp.
I thought NA was better for power delivery and usable power especially down low?
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When you go with the NA route to build power, you sacrifice low end power for top end. Think most high compression NA engines like b18c5, k20a, etc. Most na builds that I've I seen and helped out with usually sacrifice shit ton of low end power for freakish output at the top even with a professional tune. Thats the problem, you're not going to like driving with your engine at full scream to access that power on the streets. Sure the low end would improve over stock but I personally dont like driving an car with a non tactable powerband. Most NA engines usually make power with revs. I like boost because I actually prefer cars with a tactable powerband, which would be easier to accomplish with a boosted engine. I've driven a couple of mildly boosted k24 accords that had amazing low end tq with boost. Imagine having your engine making peak tq of 250-270lbs and 80-90% of that tq available from 1500-2000rpms to 55-6000rpms. You can't get that kind of tq delivery with a NA engine, unless you're talking big displacement v-8's. That more than possible with mild boost with a real good tune. And with most NA builds, most of the power tend to be lodged at the upper range of the revs. TSX being a rather high displacement 4cylinder, you can easily achieve 300-350whp with a mild boost, which I wouldn't want to reach considering its a freaking fwd sedan.