3800s dont need back pressure.
|
|
03-18-2010
You're right, but they do need exhaust velocity. Alucarus99gt may be wrong about why, but bigger is not always better, especially on a nearly stock L36.Originally Posted by Bio248
Alucarus99gt, the reason you won't see that much improvement from the TB is because it's already big enough stock. Going to the N* or LS1 TB may actually hurt you, as you'd be losing velocity. As you said, bigger is not always better.
03-18-2010
So you think I'll lose power by adding the N* TB?
03-18-2010
No, not at all. A stock L36 is very different from your modded top swapped L36. Once you have the blower on, velocity on that side of the blower is pretty much moot, you just need to get air in.
03-18-2010
Makes sense, thanks.
03-19-2010
Umm I don't believe I was wrong. I wasn't talking about the throttle body in my last post. I was just talking about the exhaust. When I mentioned the northstar I didn't want to switch to a bigger TB cuz I didn't wanna mess with tuning it and messing around with the maf. It's just too much of a hassle for me. I just wanted to take that stupid hump out. I mean some of the things they thought of on this engine I don't understand. But then again they weren't going for more power. Also on another note, every engine needs some back pressure. You can't just open everything up and expect huge hp gains. Thats what I meant about bigger isn't always better. Scooby snacks.
03-19-2010
Oh ya and when bwolf asked about losing power if switching to Northstar. I mean I'm not an expert or even close, but most of the time I know what I'm talking and if you want to switch to something that much bigger is up to you, but honestly certain mods are questionable. I mean a stock Ls1 has a 75 mm TB. Northstar is 77mm. I mean putting a TB that big on a L36 is kinda pointless in my opinion. I might be throwing myself in a fire by saying this but oh well. If you're going to do big mods like a cam or heads on a v6, honestly you might as well get a V8. Sorry just an opinion. Don't freak out people.
03-19-2010
That's exactly what I was talking about. Exhaust backpressure is bad, universally. Backpressure will never help an engine and every engine does NOT need backpressure. What is important is exhaust velocity, which is lost when going to a larger setup.
Hold on there, taking the hump out will require tuning as well. Remember, the MAF is mounted in the TB on these engines, so any change to the TB will change how the MAF reads, requiring tuning.
| « Previous Thread | Next Thread » |
| Tags for this Thread |
| Bookmarks |
Bookmarks |
