WTT 1 7/8 for 1 3/4 headers
#1
WTT 1 7/8 for 1 3/4 headers
Category: Engine - Exhaust
Price: $0
Location (State): MI
Item Condition: Used
Engine: LS1/LS6
LS Engine?: Fits LS Engine
#5
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I just bought some SE 1 7/8" headers that I'll be installing soon. I'll have a set of pacesetter 1 3/4 coated race version LT's that will be for sale soon. Maybe one of the posters above would be interested in purchasing them off me as a back up set in the event that they switch to the 1 7/8 SE headers and decide that they want to switch back to the Pacesetters?
EDIT: On 2nd thought, what if I decide I want to switch back?
Whoops, false alarm, I'll be hanging onto my Pacesetters after all until I can confirm fitment of SE headers and their Y works with my new MWC tunnel mount TA. I may need that Texas Speed Y if the SE Y gives me a problem.
Good luck with the trades boys and good looking out.
EDIT: On 2nd thought, what if I decide I want to switch back?
Whoops, false alarm, I'll be hanging onto my Pacesetters after all until I can confirm fitment of SE headers and their Y works with my new MWC tunnel mount TA. I may need that Texas Speed Y if the SE Y gives me a problem.
Good luck with the trades boys and good looking out.
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#10
I was a huge fan of bigger headers and currently have a set of coated hooker 1 3/4". I have been wanting to bigger for a while and was sure all this talk about bigger hurts low end was BS. I'm not sure if you guys are familiar with the Engine Masters series but on episode 12 they took a 500ish crank HP motor and did a 1 5/8" vs 1 3/4" vs 1 7/8" and to my surprise the 1 3/4" were the clear winner. I was a big fan of 1 7/8" and was even considering the TSP 2" primaries but now...not so much.
#11
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This is a highly debated topic. I'm not so convinced the larger primaries always result in better power, as do the better design in general. From collector design, length, etc...
#12
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Look up this topic in the dyno section. The 1 7/8 have been known to be better performers then 1 3/4 but torque band does come on a tad later in the power band. So when you're used to being able to pull in low rpm range in traffic, say 1200 to 1500 rpms, but now its a dog and feels like it has no power until 2000 or 2500 rpms then its a significant difference and some ppl may not like that feeling. Its entirely up to the individual how they want their car to perform and feel. Not one size is better then the other so to speak
#14
I had pacesetter 1 3/4 and hooker catback for 10 years. I switched to 1 7/8 SE and Magnaflow last year in September/October. From day 1 I could feel the loss in the midrange. Now I'm going to switch back to 1 3/4 because I don't plan on going with larger cubes. I ordered SE 1 3/4 last night, so these will be for sale when I remove them.
#17
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I had pacesetter 1 3/4 and hooker catback for 10 years. I switched to 1 7/8 SE and Magnaflow last year in September/October. From day 1 I could feel the loss in the midrange. Now I'm going to switch back to 1 3/4 because I don't plan on going with larger cubes. I ordered SE 1 3/4 last night, so these will be for sale when I remove them.
#19
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This is definitely good to know. Honestly I don't think having the the 370 will make much difference since the heads were basically designed for a LS1. The midrange loss would probably be similar (all else being equal of course) between the the 5.7 and 6.0 except the bottom end torque is a little stronger with the 370. Not much but a little
#20
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A GOOD 1-3/4 (with no welds in the way(check this) tube is fine. But If you have gears or a stall or more cubes. Go with 1-7/8. From what I have seen 2" tubes can really kill the low end torque even in an over 430 cid engine w/std trans. Down like 35 lbs torque for 4 more hp at the top end with a big cam.