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Old 03-29-2007, 02:11 PM   #1
GarageAlchemist
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Default Post your grams...
I would like to start making a database of part weights, gram wise..

stock rods,
aftermarket rods,
stock pistons
aftermarket pistons
rocker arms
cranks
valves
valve springs,

if anyone has any off hand, or wants to team up with me in making this database, think it could be of some use to tunners. Maybe a shop that sells parts wouldn't mind popping open a few boxes and whipping out that gram scale... hehe


The list so far...

Stock
h22
inner and outer spring = 49.5 gr
retainer = 12.9 gr
intake valve = 52.8 gr
exhaust valve = 47.2 gr
seat 8.6 gr
keepers(set of 2) = 0.95 gr
primary rocker = 88.9 gr
mid rocker = 98.1 gr
secondary rocker = 89.9 gr
LMA = 20.8 gr

Rocket Motorsports
h22
inner and outer spring = 47.2 gr
retainer = 7.6 gr

gsr
Carrillo Pro-A GSR rods 406gr
Wiseco 82mm 5cc pistons 273gr

- Integra Type R connecting rods (rod bolts/nuts - no bearings) -

Justin (ITR-00-1457)
547g 23 8
546g 23 8
546g 23 8
547g 23 8

from Chris @ Top Speed, Naples, FL
550g 22 5
547g 25 8
548g 22 5
549g 22 5

brand new set from Redgsr01
544g
553g
547g
547g

- GSR connecting rods (rod bolts/nuts - no bearings) -
My set
544g
546g
544g


- Civic Type R Pistons [.25OS] -
334g
333g
331g
334g

- P72-A0 Pistons [std bore] -
302g
302g
302g
303g

- P73-00 Pistons [.25OS] -
320g
320g
320g
319g

- B-series Wrist Pins -

Justin's
88g
88g
88g
88g

Justin's (used from JUN P13M's)

John's
88g
88g
88g
88g

Ben's (used from P73-00's)

Ben's (from P73-00 .25OS Kit)
88g
88g
88g
88g

- B-series .25OS Ring Packs -

Justin's
18g
18g
18g
18g

- B-series Valve Retainers

JDM GS-R
13g
13g
13g
13g
13g
13g
13g
13g
13g
13g
13g
13g
13g
13g
13g
13g

JUN Retainers (used 10k miles)
6g
6g
6g
6g
7g
7g
7g
7g
7g



Modified by GarageAlchemist at 1:57 PM 4/5/2007
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Old 03-29-2007, 02:53 PM   #2
coneheadsracing
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Default Re: Post your grams... (GarageAlchemist)
If i had a scale i would help ya as i'm about to assemble my motor. Not this time though sorry. I can say that my supposebly lighter ebay NRG pistons do not FEEL and lighter in my hands, you should of posted this two days ago
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Old 03-29-2007, 03:21 PM   #3
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Default Re: Post your grams... (coneheadsracing)
So what exactly are "Tunner pistons" and "Tunner rods?" I've never heard of that brand.
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Old 03-29-2007, 03:31 PM   #4
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Default Re: Post your grams... (soulpwr)
im guessing he means the weight of your stock stuff and the weight of your aftermarket stuff
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Old 03-31-2007, 02:30 AM   #5
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Default Re: Post your grams... (98vtec)
Quote:
Originally Posted by soulpwr
So what exactly are "Tunner pistons" and "Tunner rods?" I've never heard of that brand.
anther word aftermarket... you mod honda's and never heard the expression "tunner"... scary..

come on guys.. this helps everyone
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Old 03-31-2007, 03:16 AM   #6
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also would like to know gram wieght on ls rods
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Old 03-31-2007, 05:28 AM   #7
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Default Re: Post your grams... (GarageAlchemist)
Quote:
Originally Posted by GarageAlchemist

anther word aftermarket... you mod honda's and never heard the expression "tunner"... scary..

come on guys.. this helps everyone
It would help if you spelled "tuner" right....but it's kind of a taboo word now. I cringe when people ask me if I drive one of those "Tuner Cars"
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Old 04-05-2007, 05:15 AM   #8
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Default Re: Post your grams... (gibsanez)
anyone.. lets see actual tech, not GDD talk.
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Old 04-05-2007, 06:25 AM   #9
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Carrillo Pro-A GSR rods 406gr
Wiseco 82mm 5cc pistons 273gr
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Old 04-05-2007, 06:35 AM   #10
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Default Re: Post your grams... (GarageAlchemist)
ill start ya off here. this is all H22 stuff

Stock

inner and outer spring = 49.5 gr
retainer = 12.9 gr
intake valve = 52.8 gr
exhaust valve = 47.2 gr
seat 8.6 gr
keepers(set of 2) = 0.95 gr

primary rocker = 88.9 gr
mid rocker = 98.1 gr
secondary rocker = 89.9 gr
LMA = 20.8 gr

Rocket Motorsports

inner and outer spring = 47.2 gr
retainer = 7.6 gr

there can be over a grams variation with the rocker arms.
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Oh, and to the op, its VTEC. variable timing engagement cam I think it is.
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Old 04-05-2007, 06:41 AM   #11
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Default Re: Post your grams... (bluedlude)
thank you guys
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Old 04-05-2007, 06:51 AM   #12
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Default Re: Post your grams... (GarageAlchemist)
what do you guys think is the best item on a rotating assembly to shave weight on, the crank.. flywheel.. pistons ?
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Old 04-05-2007, 07:11 AM   #13
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Default Re: Post your grams... (GarageAlchemist)
id say the crank. Its the only piece of the rotating assembly which you can REALLY drop some weight.
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Old 04-05-2007, 07:38 AM   #14
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Default Re: Post your grams... (98vtec)
it all adds up
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Old 04-05-2007, 09:34 AM   #15
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Default Re: Post your grams... (GarageAlchemist)
- Integra Type R connecting rods (rod bolts/nuts - no bearings) -

Justin (ITR-00-1457)
547g 23 8
546g 23 8
546g 23 8
547g 23 8

from Chris @ Top Speed, Naples, FL
550g 22 5
547g 25 8
548g 22 5
549g 22 5

brand new set from Redgsr01
544g
553g
547g
547g

- GSR connecting rods (rod bolts/nuts - no bearings) -
My set
544g
546g
544g


- Civic Type R Pistons [.25OS] -
334g
333g
331g
334g

- P72-A0 Pistons [std bore] -
302g
302g
302g
303g

- P73-00 Pistons [.25OS] -
320g
320g
320g
319g

- B-series Wrist Pins -

Justin's
88g
88g
88g
88g

Justin's (used from JUN P13M's)

John's
88g
88g
88g
88g

Ben's (used from P73-00's)

Ben's (from P73-00 .25OS Kit)
88g
88g
88g
88g

- B-series .25OS Ring Packs -

Justin's
18g
18g
18g
18g

- B-series Valve Retainers

JDM GS-R
13g
13g
13g
13g
13g
13g
13g
13g
13g
13g
13g
13g
13g
13g
13g
13g

JUN Retainers (used 10k miles)
6g
6g
6g
6g
7g
7g
7g
7g
7g
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Old 04-05-2007, 01:56 PM   #16
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bump, loving it
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Old 04-10-2007, 05:33 AM   #17
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Default Re: Post your grams... (GarageAlchemist)
bump for the knowledge, any part.. flywheels ****ing cranks, whatever, lets get a database going
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Old 04-10-2007, 06:17 AM   #18
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Default Re: Post your grams... (GarageAlchemist)

Quote:
Originally Posted by non vtec
K20A (JDM) piston 427gm, K20A rod 588gm
K20A-2 (USDM) piston 422gm, K20A-2 rod 584gm
The difference is just the part number in the rods, but the K20A has a higher dome on the pistons which would be the reason for higher compression..

Crower Maxi-light rods.. claimed weight 462gm actual 464gm
CP 12.5:1 piston claimed weight 294gm actual 294gm.. plus a 72gm pin makes total piston weight of 366gm..

All pistons where weighed with pins in, and all rods weighed with bolts in..
Source: http://www.k20a.org/forum/show...unt=9


Otherwise when I get home I can dig up some other numbers for H22 clutch/FW stuff

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Old 04-10-2007, 05:58 PM   #19
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Default Re: Post your grams... (PirateMcFred)
Quick question so I can add to this thread.

Where are you guys buying your scales?

I would prefer to find one that reads to 0.1 g's, but you all seem to only use 1.0 g increments.

Just pick one up from Radio Shack/Circuit City? Or do you go to one of your local "medicinal purposes only" smoke shops
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Old 04-10-2007, 06:44 PM   #20
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so let me get it straight, a bunch of you pot dealers got bored and started weighing out car parts on your digital scales??

Blake thats a harsh generalization, rods and pistons are equally as viable to drop weight from the rotating assembly IMO.
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Old 04-10-2007, 08:27 PM   #21
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Default Re: Post your grams... (MightyMouseTech)
I couldn't afford one at the time.
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Old 04-11-2007, 04:40 AM   #22
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Default Re: Post your grams... (PirateMcFred)
H22
H22 OEM organic clutch disk: 1137g
H22 OEM clutch pressure plate: 5205g

K20A
RBC intake manifold 4077g chopped to fit K20A head (3941g shaved)
PRC intake manifold 4462g stock

Tilton cerametalic twin disk for K-series:
Flywheel: 2835g
clutch disks (both): 961g
basket/pressure plate(s): 2455g
total assembly weight: 7155g

That's what I got right now. I could dig up F23 and H23 stuff but no one cares about nonVTEC
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Old 04-12-2007, 08:48 AM   #23
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Quote:
Originally Posted by mgags7
so let me get it straight, a bunch of you pot dealers got bored and started weighing out car parts on your digital scales??

Blake thats a harsh generalization, rods and pistons are equally as viable to drop weight from the rotating assembly IMO.
haha.. busted

nothing like smoking a bunch of pot and building en engine. You know you can uses nails to install your head.. nuts and bolts are a thing of the past..... i'm hungry...
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Old 04-22-2007, 06:35 AM   #24
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lets see grams
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Old 04-22-2007, 07:32 PM   #25
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borrowed a digital weighing scale last week and managed to borrow some stuff for weighing and thought to share with you.

PCT 81mm piston 331g pin 89g
P73 JDM 81mm piston 314g pin 89g
Wiseco 81mm 8.25cc dome 275g pin 69g
CP 81.5mm 2cc dome 297g pin 98g

Used P73 rods with bolts and nuts only 543g
IB H-Beam GSR rod with teflon coating 519g

Omni Ti Retainers 7g-8g
Omni Flat valve Ex 45g In 44g
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