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Is the new style you weighed the strap on the muffler strap and the two damped hangers? I'll have to look up pics the old style, didn't know OAP support existed tho my OEM headers had supports (included in my manifold weights).
New style has the two damped hangers.
Cargraphic has pics of it up on their website, you can visually see how much more material there is in the old one.
Bought a set of Forgeline 19" wheels from Competition Motorsport for track use. With TPMS and 265/35/19 and 295/35/19 vs. the 245/35/20 and 295/30/20 for OEM.
Weighed them while rearranging garage (0 miles on Forgeline, ~10 miles on OEM):
OEM Front: 48.3 lb OEM Rear: 56.0 lb
Forgeline Front: 43.3 lb Forgeline Rear: 50.3 lb
So 5 lbs weight saving on the front, 5.7 in the rear per wheel (using my bathroom scale)
Thanks. I'll weigh a couple things in a couple days and then ask the mods to update. It's notable that after making this thread, I learned that RL removes the ability for a mere mortal to edit his posts after the posts are a couple days old
APEX SM10 19x9 et 50 WITH 100% tread 255/35ZR19 Cup 2 m0 96Y: 44.4 lbs Source: my bathroom scale
APEX SM10 19x11 et 46 WITH 100% tread 305/35ZR19 Cup 2 n0 102Y: 53.0 lbs Source: my bathroom scale
@TXshaggy I'll look into setting up a google spreadsheet and request you adjust the OP once I get it set up so I can adjust without bugging mods. And I'll set it up so I can pass along credentials if I decide to no longer support updates.
@TXshaggy I'll look into setting up a google spreadsheet and request you adjust the OP once I get it set up so I can adjust without bugging mods. And I'll set it up so I can pass along credentials if I decide to no longer support updates.
To OP. here are some info to add onto this thread. Since I have done OEM tire swaps to a new wheel recently. I have the weighted of OEM wheel by itself which is not far off from previous number of 23/26 lb that someone stated on other thread.
I need to figure out how to make some kind of linkable document that I can link so I can update the OP without bugging the mods. Shaggy has been courteous enough to offer to do it, but I'd rather not bug him every time. When I made this thread, I didn't realize that we can only edit our posts for a few days on RL. Anyhow, for now, please keep bumping with updates when you get them.
ITT, I will document weights of GT4 OEM parts and aftermarket parts. Documentation will list (and link, if possilbe) source and be grouped by category. As they accumulate, I'll pull reputable responses into the first couple posts.
Headers, OAP, Cats. Per side unless otherwise indicated.
OEM GT4 manifold with cats and hangers: 12.6 lbs. Source: my bathroom scale.
OEM GT4 OAP: 12.0 lbs. Source: my bathroom scale.
Dundon GT4 street manifold: 7.6 lbs. Source: my bathroom scale.
Dundon GT4 OAP with cats and two V band clamps: 6.6 lbs. Source: my bathroom scale.
Dundon GT4 OAP to stock exhaust flange adapters: 2.8 lbs. Source: my bathroom scale.
Brakes. Per corner unless otherwise indicated.
OEM GT4 Front Caliper (Iron): 9.3 lbs* (*981 GT4, assumed to be same as 982. Source: Essex)
OEM GT4 Front Caliper (PCCB): 9.3 lbs* (*981 GT4, assumed to be same as 982. Source: Essex)
OEM GT4 Front Disc (Iron): 24.2 lbs* (*981 GT4, assumed to be same as 982. Source: Essex)
OEM GT4 Front Disc (PCCB): 15.2 lbs* (*981 GT4, assumed to be same as 982. Source: Essex)
OEM GT4 Rear Caliper (Iron): 7.5 lbs* (*981 GT4, assumed to be same as 982. Source: Essex)
OEM GT4 Rear Caliper (PCCB): 7.5 lbs* (*981 GT4, assumed to be same as 982. Source: Essex)
OEM GT4 Rear Disc (Iron): 24 lbs* (*981 GT4, assumed to be same as 982. Source: Essex)
OEM GT4 Rear Disc (PCCB): 13.5 lbs* (*981 GT4, assumed to be same as 982. Source: Essex)
Essex AP Racing Radi-Cal Front Caliper, pn CP9661-2S4L/3S4L: 6.2 lbs. Source: Essex
Essex AP Racing Radi-Cal 394mm Front Disc, pn CP9661-2S4L/3S4L: 21.5 lbs. Source: Essex
Essex AP Racing Radi-Cal Rear Caliper, pn CP9449-2/3S4L: 4.85 lbs. Source: Essex
Essex AP Racing Radi-Cal 380mm Rear Disc, pn CP5772-1016/1017GA: 19.1 lbs. Source: Essex
Interior.
front floor mats (both combined): 3 lbs. Source: FazedChicken
front trunk large plastic cover above battery area: 3 lbs. Source: FazedChicken
owners manual + flat tire kit + front trunk left/right side plastic inserts including all the content in them: 9 lbs. Source: FazedChicken
I'm not doubting the majority of your post, but something doesn't seem right about the steel and CCB calipers having the same weights. The calipers are larger on the CCB system, no? I'm sure they're not made out of different materials than the standard calipers, so would posit they weigh more, similar to what I found on BMWs with CCB vs. steel.
02-15-2022, 08:38 AM
