mids VS LTs
mids VS LTs what would be the difference between them two? im deciding on what to get because in the next week im gonna be ordering them. im in CA so mids seem like what id have to do.
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Originally Posted by James Montigny
Mids are great if you need to pass a visual (cats in stock location)
LTs are the way to go for power.
LTs are the way to go for power.
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Verdad Gallardo so there wont be a noticeable difference with going to mids than LTs.
i dont want to loose low end, well i know you dont loose it it just gets moved up higher because of the scavvenging effect.
would i need a tune RIGHT after doing them?
i dont want to loose low end, well i know you dont loose it it just gets moved up higher because of the scavvenging effect.
would i need a tune RIGHT after doing them?
Originally Posted by Revelation Z28
so there wont be a noticeable difference with going to mids than LTs.
i dont want to loose low end, well i know you dont loose it it just gets moved up higher because of the scavvenging effect.
would i need a tune RIGHT after doing them?
i dont want to loose low end, well i know you dont loose it it just gets moved up higher because of the scavvenging effect.
would i need a tune RIGHT after doing them?
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Joined: Jun 2005
Posts: 2,660
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From: England
ok LT's don't "breath" better. What they allow is better scavenging over more of the rpm range. This means that you'll genrerally see higher PEAK numbers and a far susperior mid range.
Mids will work best with a high reving setup as they will scavenge better at higher rpms, however if they have 2.5" collectors they will be limiting on a high HP setup.
BUT and it's a big [size6]BUT!!![/size]
All of these are illegal in CA. Shorties are the only route and strictly speaking only CARB certified ones.
The trouble is shorties are almost pointless on a n/a setup. This is because it's not about flow but scavenging.
The stock manifolds will generally flow well enough for most n/a setups. And shorties don't scavenge within the Ls1 rpm range, so typically most will only see 5rwhp gain with them. This means a lot of money and hassle for small returns.
If you plan on boost then shorties work very well because they do out flow stock manifolds and a FI setup will make use of them.
Mids will work best with a high reving setup as they will scavenge better at higher rpms, however if they have 2.5" collectors they will be limiting on a high HP setup.
BUT and it's a big [size6]BUT!!![/size]
All of these are illegal in CA. Shorties are the only route and strictly speaking only CARB certified ones.
The trouble is shorties are almost pointless on a n/a setup. This is because it's not about flow but scavenging.
The stock manifolds will generally flow well enough for most n/a setups. And shorties don't scavenge within the Ls1 rpm range, so typically most will only see 5rwhp gain with them. This means a lot of money and hassle for small returns.
If you plan on boost then shorties work very well because they do out flow stock manifolds and a FI setup will make use of them.
the pacesetter mids say 50 state legal though. 
or is that a lie?
or is that a lie?
Originally Posted by 300bhp/ton
ok LT's don't "breath" better. What they allow is better scavenging over more of the rpm range. This means that you'll genrerally see higher PEAK numbers and a far susperior mid range.
Mids will work best with a high reving setup as they will scavenge better at higher rpms, however if they have 2.5" collectors they will be limiting on a high HP setup.
BUT and it's a big [size6]BUT!!![/size]
All of these are illegal in CA. Shorties are the only route and strictly speaking only CARB certified ones.
The trouble is shorties are almost pointless on a n/a setup. This is because it's not about flow but scavenging.
The stock manifolds will generally flow well enough for most n/a setups. And shorties don't scavenge within the Ls1 rpm range, so typically most will only see 5rwhp gain with them. This means a lot of money and hassle for small returns.
If you plan on boost then shorties work very well because they do out flow stock manifolds and a FI setup will make use of them.
Mids will work best with a high reving setup as they will scavenge better at higher rpms, however if they have 2.5" collectors they will be limiting on a high HP setup.
BUT and it's a big [size6]BUT!!![/size]
All of these are illegal in CA. Shorties are the only route and strictly speaking only CARB certified ones.
The trouble is shorties are almost pointless on a n/a setup. This is because it's not about flow but scavenging.
The stock manifolds will generally flow well enough for most n/a setups. And shorties don't scavenge within the Ls1 rpm range, so typically most will only see 5rwhp gain with them. This means a lot of money and hassle for small returns.
If you plan on boost then shorties work very well because they do out flow stock manifolds and a FI setup will make use of them.
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Joined: Jun 2005
Posts: 2,660
Likes: 14
From: England
Originally Posted by Revelation Z28
the pacesetter mids say 50 state legal though. or is that a lie?
or is that a lie?You'd probably get away with the Pacesetter shorties (mids) as they don't move the cats, but to the letter of the law they are not legal unless CARB certified.
Just depends how much of a risk taker you are. Personally unless going FI I wouldn't bother with shorties, spend the money on something more worthwhile. But in CA you are up against it for an n/a setup.
Seriously consider nitrous, Procharger, bigger displacement (402, 408ci) or a 2003/4 Corba.
I would go LT. Why give up a healthy midrange for a few bucks. Midrange is where you are driving most of the time. Pacesetters are dirt cheap and will have an advantage over mids. Both are illegial btw, because they both move the stock location of the cats.
Originally Posted by lsx24
I would go LT. Why give up a healthy midrange for a few bucks. Midrange is where you are driving most of the time. Pacesetters are dirt cheap and will have an advantage over mids. Both are illegial btw, because they both move the stock location of the cats.
TECH Addict
Joined: Jun 2005
Posts: 2,660
Likes: 14
From: England
Originally Posted by lsx24
I would go LT. Why give up a healthy midrange for a few bucks. Midrange is where you are driving most of the time.
Also advising someone to go Lt's in CA is not really a sensible thing to do. It would be down to the individual to make the call on whether they are happy to run the risk of a fine, car impound or getting nicked.
Originally Posted by lsx24
Pacesetters are dirt cheap and will have an advantage over mids. Both are illegial btw, because they both move the stock location of the cats.
Originally Posted by 300bhp/ton
This all depends on what shorties/mids they are loooking at.
Not to mention, as far as I know, there is only ONE set of mids for ls1, and those are MACs. Their deficit in the midrange has already been well documented.
Originally Posted by 300bhp/ton
Also advising someone to go Lt's in CA is not really a sensible thing to do.
Originally Posted by mattraypharbor
i saw no loss going from lt's to mids.
well when i was bolt on i had lt's they scraped everywhere so swaped to MAC mids....i have no dyno graph but the track times where still consitent as they where with the lt's i run the 1/8th mile cuz the 1/4 is a lil to far away and i belive i was runing something like an 8.0-8.2's at around 87 i'll check for shure when i get home i keep all my time slips and on the back i write down if i changed anything for that particular run or track night...