Long tube vs shorties on a lt1..
I hear that a lot, but so far i have only seen one unbiased dyno comparison. One had a benefit over the other in upper rpm ranges, one had about the same amount of benefit in the lower rpm ranges. I can't remember if lt's had the upper hand in upper or lower rpms.
Really? Lets see it.
I hear that a lot, but so far i have only seen one unbiased dyno comparison. One had a benefit over the other in upper rpm ranges, one had about the same amount of benefit in the lower rpm ranges. I can't remember if lt's had the upper hand in upper or lower rpms.
I hear that a lot, but so far i have only seen one unbiased dyno comparison. One had a benefit over the other in upper rpm ranges, one had about the same amount of benefit in the lower rpm ranges. I can't remember if lt's had the upper hand in upper or lower rpms.
Really? Lets see it.
I hear that a lot, but so far i have only seen one unbiased dyno comparison. One had a benefit over the other in upper rpm ranges, one had about the same amount of benefit in the lower rpm ranges. I can't remember if lt's had the upper hand in upper or lower rpms.
I hear that a lot, but so far i have only seen one unbiased dyno comparison. One had a benefit over the other in upper rpm ranges, one had about the same amount of benefit in the lower rpm ranges. I can't remember if lt's had the upper hand in upper or lower rpms.
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TECH Regular
Joined: Jun 2009
Posts: 448
Likes: 0
From: new york
There are plenty of people saying that one is better than the other, and I found one guy on a forum who posted up just dyno charts as proof. It showed about a 20 hp gain with lt's vs shorties. Then he later added "well, I also changed to 1.7 rr's and a cai and did some tuning" or something like that.
But I am talking about tests from an unbiased source. Anybody can post up a couple of dyno runs and say that one is this and one is that, but that's not proof in my mind. Proof means controlled testing by a source with nothing to prove.
I don't care which one is better. I installed shorties because I got a good deal on an uninstalled set and didn't want to deal with the clearance issues with lt's. I am not a shortie-lover....I just picked what worked out better for me. I shaved .17 off my qtr mile (corrected to sea level) so I'm happy. And I'm not trying to be a smart-***. I would just like to see more apples-apples testing as proof.
Edit: I would also like to see a rule established that no more "long-tubes vs shorties" threads get started. We have too many, and they all turn out just like this one.
I'm making good power with the shorties and I don't have the LT's because of groung clearance issues. There's a few extra horsepower in the LT's, but there's also a certain amount of compromise required. If the car is lowered I'd stay with Mid's or Shorties. I'm got the BBK Shorties which also included a larger "Y" pipe which I think also makes a difference. There's definitely some horsepower gain in a larger "Y" in addtion to just adding shorties to the stock "Y" pipe which would likely still be something of a limiting factor.
I brought my bbk shorties years ago when I brought the car. I still needed to take emissions and being a newb I brought shorties but for the money your much better off getting lt's or at the very least midtubes.
LPPs have terrific ground clearance for HALF the price of Kooks.
Teching In
Joined: Aug 2010
Posts: 35
Likes: 0
From: Bowie, MD
well, 1 5/8ths primaries dumped right into 3 inch piping that runs from each header down to an x out to the mufflers...if that's what you're saying then i guess so, but it runs a helluva lot better than the old crap exhaust i had with dual 2's into a single 3...i've spun 3rd accelerating when i hit 4K...like "not spinning, not spinning, there's 3500, there's 4K holy crap the back end just came loose" So i know from the butt dyno effect that i picked up a lot of top end power, and lost some lower end torque with this setup.
Well, assuming I've still got the car in another year or so I'll probably go true duals and then get some new dyno numbers. I'd be interested to know how much horsepower I'm REALLY losing to the BBK shorties over LT's and true duals.