Long tube vs shorties on a lt1..
01-09-2011, 08:33 PM
#21
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.
01-09-2011, 08:53 PM
#23
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.
01-09-2011, 08:55 PM
#24
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.
01-09-2011, 11:16 PM
#27
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I didn't have the time or money to build myself a set of 3/4 length or LT headers, so i took a set of patriot tight tuck shorties and modified the hell outta them...this is what i got:
01-10-2011, 06:42 AM
#29
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01-10-2011, 10:52 AM
#32
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.
01-10-2011, 01:17 PM
#34
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.
01-10-2011, 01:45 PM
#36
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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.
01-10-2011, 10:55 PM
#39
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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.