1990_whitecomet

hey guys.. Since my cars a 79’ and the emission don’t really effect me anymore now.. And im thinking of doing some emission removal.. so here’s the questions.. What should I take off.. And which parts should I be looking into.. Pros’ and cons’ on which to do removal upon.. Any is very much appreciated.. Thanks..

OtakuRX

iTrader: (1)

Well remove the rats nest, here is a nice tutorial
rats nest removal

then you should do the exhaust on the car and get a nice flow going.

bkm_rx7

Here ----> http://maz_tutorials.ten15.net/

Then click on "removing the rats nest". Also, get the printable version and donate some money (not a quarter ) They do an AMAZING job with those tutorials, so a little funding is always nice im sure.

As far as pro's and con's go, i hear that there isnt any downfalls (unless you live in Cali and get caught....) but that there is a horsepower improvement.

bkm_rx7

damn you otaku!!! beat me to it!!!

OtakuRX

iTrader: (1)

just a quick note, be very thorough when closing up all the vacuum stuff because a small leak will give a big head ache for a while, I am actually having to redo my intake manifold because I didn't do the block-off plate right.

Root79Rx7

isnt that tutorial for motors of 81-85? the 79-80's do not have that type of rats nest, its there a diferent tutorial for the sa's?

jimmyjoejoe

you can modify the 79 rats nest to become emissionless, although being in california, emissions controls do affect you. it's model year 75 and later that need biennial smogs.

FinalRights

What kinda gains are achieved from removing the rats nest and air pump?

bkm_rx7

I've heard both sides. Some people say that they noticed a gain in horsepower, while others say that it made no difference. Nontheless, it does these 2 things for sure: cleaner look to the engine and loses weight

If you are looking into doing cheap upgrades, check out the ICAI (insulated cold air intake) tutorial on the same page that i mentioned in my last post. Also, make sure to check out the Upgrading A Stock RX7 Thread

1990_whitecomet

thanks guys.. very interesting facts.. good stuff!! but does the rats nest on the 81+ the same the 79-80's.?

FinalRights

What exactly is the "rats nest?" I can see its emissions of some sort,but what exactly?

bkm_rx7

12a Rats Nest (what it exactly is...)

Try looking HERE before asking questions that have been answered over and over and over...

1990_whitecomet

so on my 79' i can't really take off some of th emission stuff huh.?!?! well can i or can i not.? plus since i am from california.. suckS.? but yea.? plus.. if i remove the air pump.. what have to go along with it... besides the air pump itself and the belt.? what about some of the hoses it has.? just leave em', won't really matter.?

bkm_rx7

This is a good question that should be answered, try re-posting with the title "79-80 emissions removal" and maybe we can get some rx7carl help.

1990_whitecomet

should i do a re-post.? you guys think that its needed for a re-post.. as the title "79'-80' emission removal.? that title does sound better yEs!.. ehehe.. maybe huh... alright..