Yeah, those numbers fall within the reasonable scale that is expected, but don't put too much value into the numbers the magic dyno machine spits out. If you really want to know how much the performance of your car has been raised, take it to the track and find out first hand. If it doesn't perform as high as you want, then upgrade. Otherwise, stick with what you have and enjoy it.

Lolwut?

 

just for the record i dont mean to be rude but no shit tubular and equal length manifolds are better. thats not what the topic is about. im asking what other people put down with similar setups and what psi they are at. i know the differences between manifolds.

 

310 is good for your setup. I've seen similar setups put down 260-280 hp. You're getting 50% more power on 50% more intake pressure. That's not very common with log manifolds, but exactly what I would expect with a tubular manifold. I would be very happy with your numbers.


Unless you never hit VTEC, yes. Inline Pro and PFab make some quality log manifolds that aren't bad, but sooner or later, you will want to upgrade. When you hit VTEC at 6500-7000 rpm and the engine feels like it's choking, you will realize that this isn't what a S2000 should feel like. Logs are also just as prone to cracking and other reliability problems as a tubular manifold. P-Tuning and Full Race have done dyno comparisons of logs vs tubular manifolds and found little or difference in low end torque, but once the turbo spools, the tubular makes significantly more power. I've had both and the $500-1000 extra for a tubular manifold is one of the best $/hp upgrades you can do on the S2000.

If you think it's a high horse, that's fine. I'm trying to save others $ and to prevent them from having a crappy turbo experience. My advice is to spend the money to do it right once and you'll save a ton of $. This reminds me of the old debates over real engine management vs. VAFC or other hacks.

Tim

 

I was really considering PFabs logs kit for track duty only. I don't want a ton of power 350 max. So you're saying tubular would benefit me more even though I don't want 500hp?
I would want to keep things as simple as possible.

 

I wouldnt even call inline pros a log manifold, the runners are seperated, it would better to just call it a cast manifold

 

Yeah. It's I'm even guilty of hating on a cast mani before I was taught that a log and cast mani are not the same. Cast can make serious power. Logs suck over 375hp for efficiency. They can do it just not well.

 

f20kills,

For track duty, I would seriously consider a supercharger. It's going to be a lot easier and less costly to make that reliable for repeated lapping. A turbo setup would need a lot of cooling and a conservative tune. It's certainly doable, but since you say keep things as simple as possible, I'm not sure it would be worth it for you.

Tim

 

The thing is I know better but for some reason, I've been itching to go turbo agian.
I really like the pfab kit and for SC I really like the HKS kit. Its between those two for me.

....the log should be fine for 350whp? As in it won't create more heat than a tubular?

 

SOS stage 2
/thread

 

I'm not looking for more than 350whp for the track and as silly as it sounds....I don't like the look of the SC LOL plus both are the same price so I'm leaning towards the HKS