Mid-length headers
06-09-2016, 01:46 PM
#1
Staging Lane
Thread Starter
iTrader: (1)
Join Date: Apr 2016
Location: Michigan
Posts: 74
Likes: 0
Received 0 Likes
on
0 Posts
Mid-length headers What is the potential loss of running a set of mid length headers compared to full length? Both being of the same primary diameter and collector size.
06-09-2016, 06:55 PM
#6
Trending Topics
06-10-2016, 10:48 AM
#9
I've seen this mentioned time and time again, but I wouldn't say there is no gain from the factory manifolds to midlengths. The MAC Mids were really highly regarded and seemed to put down good numbers, from what I have read.
I will be going with midlengths (Hooker Blackheart TD) because it's part of the system and retains (or improves) my ground clearance. If I didn't care about ground clearance and/or was just building a system from various components, sure, I would go with LT's. I guess my point is just that Midtube headers still provide a gain (from what I have read) over factory manifolds - it's just up to the purchaser to decide which meets their needs - cost, ground clearance, power gain, etc.
With any luck, we'll soon see how the Blackheart system performs. I had my stock car car baselined in 2014 - 312hp, 326tq. That was base with an SLP lid and EGR/AIR deleted - that's it. Since then I have added an LS6 intake, will be adding the full exhaust once it arrives (it's on order), and will have a tune done. I think we'll be having another dyno day in late July, at which time I can get the updated numbers.
I will be going with midlengths (Hooker Blackheart TD) because it's part of the system and retains (or improves) my ground clearance. If I didn't care about ground clearance and/or was just building a system from various components, sure, I would go with LT's. I guess my point is just that Midtube headers still provide a gain (from what I have read) over factory manifolds - it's just up to the purchaser to decide which meets their needs - cost, ground clearance, power gain, etc.
With any luck, we'll soon see how the Blackheart system performs. I had my stock car car baselined in 2014 - 312hp, 326tq. That was base with an SLP lid and EGR/AIR deleted - that's it. Since then I have added an LS6 intake, will be adding the full exhaust once it arrives (it's on order), and will have a tune done. I think we'll be having another dyno day in late July, at which time I can get the updated numbers.
06-10-2016, 12:01 PM
#10
Teching In
Join Date: Jan 2016
Posts: 45
Likes: 0
Received 0 Likes
on
0 Posts
What you miss with mids is the exhaust scavaging of long tubes. You don't get the low and mid range torque. A well set up exhaust with mids are said to flow as well as the same set up with long tubes on the top end, though. That may be a plus with some cars that are traction limited.
06-10-2016, 03:20 PM
#11
Understood - just saying that the blanket statement of "they aren't worth it" isn't true. They DO provide a noticeable gain, although, LT's typically/theoretically provide more. Fitment/clearance both with the ground as well as the K-member are potentially sacrificed though. It's all about tradeoffs and optimizing what suits your needs best.
Consider it like the girlfriend limitation - pick only two...hot, cool, sane.
Consider it like the girlfriend limitation - pick only two...hot, cool, sane.
06-10-2016, 04:09 PM
#12
imo they arent worth it. LTs for the most part fit fine with adequate ground clearance with little to no drawbacks.
just like a fat girl and a playboy centerfold. theyre both women and they serve the same purpose but you know which one youre better off choosing.
fat=mids
LTs=playboy centerfold.
just like a fat girl and a playboy centerfold. theyre both women and they serve the same purpose but you know which one youre better off choosing.
fat=mids
LTs=playboy centerfold.
06-11-2016, 08:26 PM
#13
Staging Lane
Join Date: Dec 2006
Location: Visalia, Ca
Posts: 73
Likes: 0
Received 0 Likes
on
0 Posts
I have MACs on my car, but only because I got them for $100 at a time before there were so many sets of cheap longtubes floating around. With the mids only the car dropped about .2 in the 1/4 and picked up a few mph. Not saying they'd be worth it now, but they're not the absolute worst thing you could buy (at least not in 2007 lol)
If I had the drive to do another header swap I'd go 1 7/8 longtubes for sure, but for being a super simple budget bolt on car it's decently close to 11's as it sits. If it were to hit an 11.99 with pos mids and a 700lbs heatsoak ridden bbk intake manifold I'd be happy
If I had the drive to do another header swap I'd go 1 7/8 longtubes for sure, but for being a super simple budget bolt on car it's decently close to 11's as it sits. If it were to hit an 11.99 with pos mids and a 700lbs heatsoak ridden bbk intake manifold I'd be happy