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

 

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

 

So what exactly are "Tunner pistons" and "Tunner rods?" I've never heard of that brand.

 

im guessing he means the weight of your stock stuff and the weight of your aftermarket stuff

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by soulpwr &raquo;</TD></TR><TR><TD CLASS="quote">So what exactly are "Tunner pistons" and "Tunner rods?" I've never heard of that brand. </TD></TR></TABLE>

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

come on guys.. this helps everyone

 

also would like to know gram wieght on ls rods

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GarageAlchemist &raquo;</TD></TR><TR><TD CLASS="quote">

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

come on guys.. this helps everyone</TD></TR></TABLE>

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"

 

anyone.. lets see actual tech, not GDD talk.

 

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

 

ill start ya off here. this is all H22 stuff

<U>Stock</U>

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

<U>Rocket Motorsports</U>

inner and outer spring = 47.2 gr
retainer = 7.6 gr

there can be over a grams variation with the rocker arms.

 

thank you guys

 

what do you guys think is the best item on a rotating assembly to shave weight on, the crank.. flywheel.. pistons ?

 

id say the crank. Its the only piece of the rotating assembly which you can REALLY drop some weight.

 

it all adds up

 

- 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

 

bump, loving it

 

bump for the knowledge, any part.. flywheels ******* cranks, whatever, lets get a database going

 

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

 

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.

 

I couldn't afford one at the time.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mgags7 &raquo;</TD></TR><TR><TD CLASS="quote">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.</TD></TR></TABLE>

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...

 

lets see grams

 

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

 

good deal,

 

More for you bro..

IB I-Beams B16A rods 492g

Used B16A PR3 rods only + bolts 531g

Used PR3 Exhaust Valve 42-43g
Used P73 Intake Valve 42g