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Lightweight C7 hooker shorty headers?

 
Old 01-11-2019, 09:40 AM
  #21  
fatsport
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I have the Borla xpipe also. Also, 18Ē Forgestarís will be here today. Together with Hoosier R7s, that should be another 40 lbs.
The right battery is tough. Iíve done some research, need to do more. I find it hard to believe a battery that fits in a Harley is sufficient. If so, could be up to another 30 lbs of savings.
Girodisc rear rotors are much lighter than stock. Thatís another 16 lbs for reasonable cost.
Great stuff. Someone should start a weight thread. The C6 guys did a great one
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Old 01-11-2019, 09:44 AM
  #22  
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Originally Posted by fatsport View Post
I have the Borla xpipe also. Also, 18Ē Forgestarís will be here today. Together with Hoosier R7s, that should be another 40 lbs.
The right battery is tough. Iíve done some research, need to do more. I find it hard to believe a battery that fits in a Harley is sufficient. If so, could be up to another 30 lbs of savings.
Girodisc rear rotors are much lighter than stock. Thatís another 16 lbs for reasonable cost.
Great stuff. Someone should start a weight thread. The C6 guys did a great one
just me being an ******* perhaps but I think the girodisc are the biggest rip-off ever. OEM rear rotors are like half the price and they are damn good just heavy. All the weight is in the solid steel center section, if someone would just make a factory sized center out of 6061 machined aluminum you would get all your weight savings! Then just swap out the OEM center off the rotor when you buy new ones.

i recant this statement. The girodisc replacement is less than OEM cost and a couple forum vendors run sale sale on these. I picked up a full set.

Last edited by Pacembellum; 03-17-2019 at 01:00 PM.
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Old 01-11-2019, 09:49 AM
  #23  
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Great idea! I have a local machine shop that makes fixturing for my engineering firm. Everything he makes is 6061, has a cnc machine, mill, and a lathe.
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Old 01-11-2019, 05:07 PM
  #24  
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Originally Posted by Pacembellum View Post
I’m curious as to what your thoughts are on these. I’m interested in dropping some weight off the front of the car, call it a handling exercise more than anything. My concern is that they will not hold up to the exhaust temps on a z06 on track, what do you guys think? 19lbs less than OEM cast stainless. Don’t want long tube headers so that’s not an option.

http://www.superchevy.com/how-to/exh...your-c7-vette/
i have these installed on my Z06 , paired with Akrapovic Full exhaust, I have no tune and not been on the dyno since i installed so cant comment on the improvement, Its been over an year and no issues so far, I haven't tracked the car. I got them ceramic coated at a reputed shop.

My Mods: LG Drop Spindles , Hookers Shorty , Ackrapovic Full System , CAI , DSC Sport controller , MGW Shifter, Difflow Rear Diffuser.

Last edited by sixthsense114; 01-11-2019 at 05:07 PM.
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Old 01-11-2019, 08:54 PM
  #25  
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Originally Posted by Pacembellum View Post
T
hey sure look nice!
Those look nice!
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Old 01-13-2019, 07:43 PM
  #26  
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Pair these with a set of catless mids or aFe catted mids and I think it would be a strong alternative to LTs. I'm really considering this path because LTs on these cars are just to raspy for my taste.
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Old 01-25-2019, 11:30 AM
  #27  
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Any updates?
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Old 01-27-2019, 11:59 AM
  #28  
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Originally Posted by Oh4GTO View Post
Any updates?
i received them now looking into ceramic coating. But I still think heatshield is better. Do mclaren or Ferrari or any GT3 teams use this stuff? Iím just not sold on it. I had a set of jet hot coated headers in the past on a v8 Jeep and I donít know if it did much.
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Old 01-27-2019, 12:13 PM
  #29  
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Get some weights and let us know if that 19 pounds difference is correct. Seems like quite a difference.
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Old 01-27-2019, 01:18 PM
  #30  
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Originally Posted by 8850 View Post
Get some weights and let us know if that 19 pounds difference is correct. Seems like quite a difference.
The 19lbs difference is for the cast iron exhaust. Here's the link from Holley https://www.holley.com/products/exha.../70301306-RHKR . It says up to 19 lbs so hopefully that's accurate. The z06 stainless exhaust is actually heavier than the cast manifolds.

Last edited by badhabit_wb; 01-27-2019 at 07:40 PM.
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Old 01-27-2019, 07:15 PM
  #31  
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Originally Posted by badhabit_wb View Post
The 19lbs difference is for the cast exhaust. Here's the link from Holley https://www.holley.com/products/exha.../70301306-RHKR . It says up to 19 lbs so hopefully that's accurate. The z06 stainless exhaust is actually heavier than the cast manifolds.
I can't figure out what you are trying to say. Aren't the stock Z06 manifolds cast stainless?

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Old 01-27-2019, 07:44 PM
  #32  
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Sorry I should have said cast iron. Typing too fast. I changed it. I think it was Norcal-ss that posted the weight difference in the cast iron vs stainless exhausts.
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Old 01-27-2019, 08:25 PM
  #33  
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The c7 lt1 and lt4 manifolds are a different material that is whatís being discussed idk what manifolds hooker weighed.
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Old 01-27-2019, 08:33 PM
  #34  
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I copied this from a post by Kracka
"LT1 vs. LT4 manifolds are identical in design and dimensions (including runner diameter and flow). There are only two differences to speak of:
1. Material (cast iron vs. cast stainless steel).
2. Weight. Although I knew the weights would differ, which one is lighter did surprise me! The cast iron LT1 manifold weighs 13.7 lbs while the cast stainless steel LT4 manifold weighs in at 17.8 lbs."
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Old 01-28-2019, 12:37 PM
  #35  
Pacembellum
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Originally Posted by badhabit_wb View Post
I copied this from a post by Kracka
"LT1 vs. LT4 manifolds are identical in design and dimensions (including runner diameter and flow). There are only two differences to speak of:
1. Material (cast iron vs. cast stainless steel).
2. Weight. Although I knew the weights would differ, which one is lighter did surprise me! The cast iron LT1 manifold weighs 13.7 lbs while the cast stainless steel LT4 manifold weighs in at 17.8 lbs."
so these are 6.625 lbs each so isnít that 22.35 lbs less on an lt4 and 14.15 less for the

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Old 01-28-2019, 12:40 PM
  #36  
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Yep. Not sure where they got 19lbs. 22lbs is a good weight savings as long as you don't lose any durability. Not sure how much ceramic coating would change the weight but there would be an increase.
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Old 01-29-2019, 09:28 PM
  #37  
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I have used wrap in the past and that stuff works. You can put your hand right on the header without instant burn. After shutdown you can leave your hand. I think these paired with a set of catted aFe pipes and your looking at great weight savings, increased power and at a savings over LTs.
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Old 02-03-2019, 11:45 AM
  #38  
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Originally Posted by fatsport View Post
Great idea! I have a local machine shop that makes fixturing for my engineering firm. Everything he makes is 6061, has a cnc machine, mill, and a lathe.
I'd be interested in a set of lightweight hats.
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Old 02-15-2019, 12:16 PM
  #39  
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Originally Posted by Pacembellum View Post
Iím curious as to what your thoughts are on these. Iím interested in dropping some weight off the front of the car, call it a handling exercise more than anything. My concern is that they will not hold up to the exhaust temps on a z06 on track, what do you guys think? 19lbs less than OEM cast stainless. Donít want long tube headers so thatís not an option.

http://www.superchevy.com/how-to/exh...your-c7-vette/
Did you get yours installed? I just finished installing mine. Did not removed the passenger valve cover or spark plug wires. Plenty of places to lay the wires out of the way. Installed the rear passenger side spark plug before the headers. Made it much easier to get it in. You are right on with the weight savings.
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Old 03-15-2019, 01:57 AM
  #40  
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How are you guys liking the shortys? Anyfeedback?
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