1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Weight reduction, The, " What can be removed" game

Thread Tools
 
Search this Thread
 
Old 05-26-08, 01:18 PM
  #1  
Full Member
Thread Starter
 
littleredrotary's Avatar
 
Join Date: Feb 2008
Location: North Carolina
Posts: 93
Likes: 0
Received 0 Likes on 0 Posts
Weight reduction, The, " What can be removed" game

alright. so ive been looking around my engine bay at all the stuff thats adding weight. i plan on getting a electric fan, ditching a/c and removing all emissions **** from my engine

anything else i should add to my list? and if so how do i go about removing it and what parts do i need to do so.

also if you live in NC your more than welcomed to come help
Old 05-26-08, 01:38 PM
  #2  
Rota-lution
 
Experiment.Seven's Avatar
 
Join Date: Feb 2008
Location: Reno, NV
Posts: 229
Likes: 0
Received 0 Likes on 0 Posts
Strip your carb.

You're on the right track though.

Emmissions consist of:
Rats nest
EGR/Air pump
ACV Valve

You can go pre-mix as well if you remove your oil pump.
Old 05-26-08, 01:43 PM
  #3  
Work in Progress

iTrader: (5)
 
tallbozo's Avatar
 
Join Date: Aug 2006
Location: Vancouver, WA
Posts: 904
Received 4 Likes on 4 Posts
try a s4 front mount oil cooler, relocate the battery to one of the bins in the car, and full carb emissions removal with the Racing Beat intake.

Here's mine after i did a motor swap. I cleaned it up with some semi-flat paint.


Old 05-26-08, 02:39 PM
  #4  
Famous Taillights

iTrader: (3)
 
FirebirdSlayer666's Avatar
 
Join Date: Oct 2005
Location: Hagerstown, MD
Posts: 3,443
Likes: 0
Received 2 Likes on 2 Posts
Originally Posted by Experiment.Seven
Strip your carb.

You're on the right track though.

Emmissions consist of:
Rats nest
EGR/Air pump
ACV Valve

You can go pre-mix as well if you remove your oil pump.
Do not, I repeat, DO NOT remove the oil pump. What he means is to remove the oil metering pump and run premix. Also an SA intake would work well since it doesn't have any of the extra crap on it. If you get a header, it will save weight and add some extra power.
Old 05-26-08, 05:21 PM
  #5  
my fb is older than me

iTrader: (1)
 
woodonastick's Avatar
 
Join Date: Aug 2004
Location: San Jose
Posts: 690
Likes: 0
Received 0 Likes on 0 Posts
i went ahead and cut out the skeleton of my hood. i also let the cruise control go too.

my own opinion on the efan is dont do it. atleast for me it didnt help. im usuing a taurus efan with the low setting. when it turns on it draws too many amps even w/ my s5 alt. just my .02
Old 05-26-08, 08:30 PM
  #6  
Lives on the Forum

iTrader: (13)
 
Rx-7Doctor's Avatar
 
Join Date: Jul 2004
Location: Oregon
Posts: 10,584
Likes: 0
Received 12 Likes on 11 Posts
https://www.rx7club.com/showthread.p...ghlight=weight
Old 05-27-08, 01:22 AM
  #7  
Rota-lution
 
Experiment.Seven's Avatar
 
Join Date: Feb 2008
Location: Reno, NV
Posts: 229
Likes: 0
Received 0 Likes on 0 Posts
Sorry about that. *doh*

- Remove the oil metering pump. (OMP)


Good catch FirebirdSlayer666. lol
Old 05-27-08, 03:24 AM
  #8  
Stu-Tron Get Yo Groove On

iTrader: (4)
 
Jeezus's Avatar
 
Join Date: Nov 2006
Location: Huntsville AL
Posts: 8,405
Received 10 Likes on 10 Posts
Originally Posted by woodonastick
i went ahead and cut out the skeleton of my hood. i also let the cruise control go too.

my own opinion on the efan is dont do it. atleast for me it didnt help. im usuing a taurus efan with the low setting. when it turns on it draws too many amps even w/ my s5 alt. just my .02
Check your grounds. Even with the lower output s4 (even the stock alternator I had) I noticed barely any dip in alternator output.
Old 05-27-08, 06:48 AM
  #9  
Senior Member

 
speedracer_not's Avatar
 
Join Date: Dec 2004
Location: alabamer
Posts: 502
Received 1 Like on 1 Post
replace that cast iron stock exhaust manifold with a racing beat manifold, dump the cat converter and air pump too, and the cast iron exhaust pipe between the cat and manifold
Old 05-27-08, 08:40 AM
  #10  
Respecognize!

 
Whizbang's Avatar
 
Join Date: Sep 2004
Location: Anchor Bay, CA
Posts: 4,106
Received 71 Likes on 42 Posts
i think what is funny is that the stock fan and clutch assembly usually weights less than most peoples electric fans they put in. Plus the stock fan with shroud cools very well.
Old 05-27-08, 11:17 AM
  #11  
mxd
FNZOOM

iTrader: (1)
 
mxd's Avatar
 
Join Date: Jun 2007
Location: MN
Posts: 154
Likes: 0
Received 0 Likes on 0 Posts
stock fan is horribly loud in the windy area, it also seems to suck a lot energy in the low rpms. The electric fans do not utilize the shroud and leave out the oil coolers center area unless sorta split between. I have gone to a smaller diameter electric fan (close to the stock fans diameter) and modified the stock shroud to encompass the fan, so far no problems and at the moment its effective enough. Waiting for the 100degree heatsoaked days to be sure.

Remove the rust, when rust gets wet it gains weight!
Old 05-27-08, 12:05 PM
  #12  
Burning Oil-Grinding 3rd

 
Hades12's Avatar
 
Join Date: Apr 2002
Location: Union Mills NC
Posts: 4,094
Likes: 0
Received 1 Like on 1 Post
Where are you at in NC?

Any pics of your car?


Remove all of the AC ever under the dash.

Spare tire.
Old 05-27-08, 02:36 PM
  #13  
Registered Offender

 
djjjr42's Avatar
 
Join Date: Jul 2006
Location: Bishopville, SC
Posts: 689
Likes: 0
Received 0 Likes on 0 Posts
Sub zero start assist, if you have it.
Old 05-27-08, 02:41 PM
  #14  
*** Bless The USA

iTrader: (8)
 
Viking War Hammer's Avatar
 
Join Date: Jan 2007
Location: Saint Louis / Illinois
Posts: 7,140
Received 0 Likes on 0 Posts
Just start pulling parts, don't be a baby.
Old 05-27-08, 03:03 PM
  #15  
Full Member
Thread Starter
 
littleredrotary's Avatar
 
Join Date: Feb 2008
Location: North Carolina
Posts: 93
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Hades12
Where are you at in NC?

Any pics of your car?


Remove all of the AC ever under the dash.

Spare tire.
Im in Salisbury, like 30min from Charlotte. Id rather not remove all the **** from under the dash because if i wanna put AC back on sometime ill not have to crawl up under there. being 6 foot 3 its not a easy task

but for starters subzero is being taken out now, just in here checking out the forums. Will my car run the same if i just take the belts off the AC and airpump and put on the lawnmower belt like in the tut for removing the rats nest? Ill be pulling the pumps and such off but not until i get all the hoses and such, but i wouldn't mind getting the belt on already if it wont hurt
Old 05-27-08, 03:12 PM
  #16  
Stu-Tron Get Yo Groove On

iTrader: (4)
 
Jeezus's Avatar
 
Join Date: Nov 2006
Location: Huntsville AL
Posts: 8,405
Received 10 Likes on 10 Posts
Originally Posted by littleredrotary
Im in Salisbury, like 30min from Charlotte. Id rather not remove all the **** from under the dash because if i wanna put AC back on sometime ill not have to crawl up under there. being 6 foot 3 its not a easy task

but for starters subzero is being taken out now, just in here checking out the forums. Will my car run the same if i just take the belts off the AC and airpump and put on the lawnmower belt like in the tut for removing the rats nest? Ill be pulling the pumps and such off but not until i get all the hoses and such, but i wouldn't mind getting the belt on already if it wont hurt
Everything will work as usual. If you take the belts off you are removing parasitic loss, but still have the weight. I took the compressor and evaporator off my car and left everything else off (yes, I took off the lines as well)

I also run the lawnmower belt.
Old 05-27-08, 03:16 PM
  #17  
Rotary Freak

iTrader: (19)
 
RX-7 Chris's Avatar
 
Join Date: Oct 2007
Location: Colorado Springs, CO
Posts: 2,014
Likes: 0
Received 0 Likes on 0 Posts
lawnmower belt?
Old 05-27-08, 03:20 PM
  #18  
Full Member
Thread Starter
 
littleredrotary's Avatar
 
Join Date: Feb 2008
Location: North Carolina
Posts: 93
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Jeezus
Everything will work as usual. If you take the belts off you are removing parasitic loss, but still have the weight. I took the compressor and evaporator off my car and left everything else off (yes, I took off the lines as well)

I also run the lawnmower belt.
jeezus i was waiting on you to respond lol. how much did the belt cost you?
Old 05-27-08, 04:21 PM
  #19  
I wanna go fast

 
well uhhh's Avatar
 
Join Date: May 2006
Location: North Bend, WA
Posts: 378
Likes: 0
Received 0 Likes on 0 Posts
the lawnmower belt is the same thing as the pinapple racing yoohoo belt. just a shorter belt to run from the e-pulley to the waterpump. I think they are under $15 around here number 3L220. http://www.grainger.com/Grainger/items/3L220
Old 05-27-08, 04:25 PM
  #20  
Lives on the Forum

 
Kentetsu's Avatar
 
Join Date: Jun 2004
Location: Grand Rapids Michigan
Posts: 11,359
Received 14 Likes on 11 Posts
Removal of all the emissions bs removes a lot of the weight. Adding a header pulls even more out. Lots of cast iron in the stock exhaust.

Only other thing I can add is that you can use a 2nd gen water pump housing to replace the cast iron one. I also got an aluminum water pump to go with it. That stock bitch was HEAVY!!!

Woodonastick: What was involved with pulling the skeleton out of the hood. How much weight to you figure you shaved off? I was considering this, but didn't know where to start. Thanks...
Old 05-27-08, 08:20 PM
  #21  
Full Member
Thread Starter
 
littleredrotary's Avatar
 
Join Date: Feb 2008
Location: North Carolina
Posts: 93
Likes: 0
Received 0 Likes on 0 Posts



theres pictures of what im working on. got her for 2300$ after my kia got rearended.
Old 05-27-08, 09:10 PM
  #22  
RX-7 NUT

 
DarkDrakeX's Avatar
 
Join Date: Aug 2007
Location: California
Posts: 444
Likes: 0
Received 1 Like on 1 Post
how did you make the lazy eye headlight look? did u unhool it and manually make em be right there or do they open to that??

how does that work with your high/low beams?
Old 05-27-08, 09:19 PM
  #23  
Full Member
Thread Starter
 
littleredrotary's Avatar
 
Join Date: Feb 2008
Location: North Carolina
Posts: 93
Likes: 0
Received 0 Likes on 0 Posts
they are unhooked right now. i dont drive much at night
Old 05-28-08, 10:05 AM
  #24  
Full Member
Thread Starter
 
littleredrotary's Avatar
 
Join Date: Feb 2008
Location: North Carolina
Posts: 93
Likes: 0
Received 0 Likes on 0 Posts
well just ordered my yoohoo belt
gotta get it tomorrow morning
Old 05-28-08, 02:39 PM
  #25  
Famous Taillights

iTrader: (3)
 
FirebirdSlayer666's Avatar
 
Join Date: Oct 2005
Location: Hagerstown, MD
Posts: 3,443
Likes: 0
Received 2 Likes on 2 Posts
The only problem with removing the air pump is if you still have a cat that has the air pipe hooked to it, it will burn up. Of course you could get carbon fiber parts from Fibermaz to lighten things up even more


Quick Reply: Weight reduction, The, " What can be removed" game



All times are GMT -5. The time now is 06:20 AM.