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My 12a rotary starlet - NOW 13b Turbo2

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Old Nov 11, 2009 | 07:04 AM
  #126  
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Originally Posted by blwfly
nice starlet!! i miss those little cars when i was 16 back in new zealand we used to do donuts and burnouts every weekend party and have fun quick jack up on the axel have new tyres on in 10mins lol
they are like dime a dozen over there very popular with rotary swaps..

congrats on a nice ride

cheers
chris
Thanks for your kind words, I really like this ride
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Old Nov 11, 2009 | 04:43 PM
  #127  
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Originally Posted by n0ferz
Do you have any pics of how that would look installed in a webber wacky ? I wonder if my nikki has the part you are talking about ?
if you have a nikki from a RX-7, that **** aitn gonna work. it has to come off an old school nikki or hitachi
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Old Nov 11, 2009 | 09:20 PM
  #128  
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Originally Posted by wackyracer
if you have a nikki from a RX-7, that **** aitn gonna work. it has to come off an old school nikki or hitachi

lol all i have is the old nikki I had before laying around, there should be another way to do this like ordering some hose and fittings or something like that ?

btw thats a nice mod u had there wacky
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Old Nov 11, 2009 | 11:03 PM
  #129  
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no probs i actually tryed to find one here in oregon for my first car but couldnt find one and got a 1sr gen rx7 instead.
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Old Nov 14, 2009 | 07:58 PM
  #130  
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Just get a fuel pressure regulator that has a return line port and run a line back to the fuel tank. You can even run the factory steel return line from the regulator, that's what I did for a while.
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Old Nov 15, 2009 | 02:37 AM
  #131  
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Just Tee into the supply line. Put the 2-port regulator on the tee and let it relieve pressure to the return line. This will give you the full flow capacity of the fuel pump with fuel pressure controlled by the regulator as a bypass. This setup makes the 2-port function like a 3-port regulator. All a 3-port regulator is a 2-port regulator with a built in Tee.
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Old Nov 15, 2009 | 07:23 AM
  #132  
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Thank you guys for the inputs, can you also show me some pictures ?? It will easier for me to understand with pictures
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Old Nov 15, 2009 | 08:18 AM
  #133  
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I guess if I buy this regulator I will be all set, am I right ?

http://www.summitracing.com/parts/MAA-4307M/
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Old Nov 15, 2009 | 01:02 PM
  #134  
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Here is a pic of my old Mallory 3 port regulator set up. The line on the top right is the input, the line one the left is the output to the carb, and the line on the bottom is the return line back to the fuel tank. You can see the rubber hose on the bottom goes to the factory steel line back to the tank. If you dont have this steel line, then you can just use make a line that goes back to the tank.

The FPR link that you posted above is for fuel injection. Get the one for carburetor. It looks the same but is silver and gold.

Here's the pic-
Attached Thumbnails My 12a rotary starlet - NOW 13b Turbo2-trans.-mod-012.jpg  
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Old Nov 15, 2009 | 07:37 PM
  #135  
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Originally Posted by ultimatejay
Here is a pic of my old Mallory 3 port regulator set up. The line on the top right is the input, the line one the left is the output to the carb, and the line on the bottom is the return line back to the fuel tank. You can see the rubber hose on the bottom goes to the factory steel line back to the tank. If you dont have this steel line, then you can just use make a line that goes back to the tank.

The FPR link that you posted above is for fuel injection. Get the one for carburetor. It looks the same but is silver and gold.

Here's the pic-
Thanks Jay, I will add that Mallory FPR to my wish list then
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Old Nov 16, 2009 | 08:14 AM
  #136  
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you can modify your existing holley FPR. Add a "wye" fitting on one of the inlet ports for supply and gauge install. the remaining port for return.
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Old Dec 28, 2009 | 11:49 AM
  #137  
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Hey guys, its been a while since the last update. Well I took the starlet for a trip yesterday (around 40miles each way) and you cant travel like this no the car lol. I need to fix this carb issue and I dont really know how to correct the problem.

It looks like the car is running very rich and yesterday it got like flooded or something like that, I recorded a small vid so you can see the idle of the car and judge by it and the sound of the engine.

I still have the same settings on my carb as before and I think that now is the time to start changing jets so the car feels better when you drive it.

Video:
http://www.youtube.com/watch?v=wQNn8tiMYJ8

Carb settings in case you forgot :P
37 chokes
200main
150 air
f11 etubes
65F10

Thanks

Emir-
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Old Dec 28, 2009 | 07:17 PM
  #138  
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sounds like you can use a larger idle jet OR you dont know how to adjust the air/fuel mixture screw. plus that 37 venturies are too small. you may get a good low-end but you will end up with a sucky freeway speed (small venturies will act like a governor on freeway speed)
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Old Dec 28, 2009 | 08:17 PM
  #139  
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Thanks for your reply Mel, let me tell you that the car was idling just fine before the trip and that it wasted a hell lot of fuel during the trip. It averaged like 10-13kms/gal on the freeway and that in my opinion is way too much for a non ported 12a engine and still was running crappy.

I have 40 venturies and a couple 70 idle jets, what you recommend me to do, change the venturies first or change both things at the same time ??

Thanks

Emir-
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Old Dec 28, 2009 | 08:30 PM
  #140  
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install the 40's and then re-tune it but if you want it to be a lill bit more aggressive, change the idle jets.
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Old Dec 28, 2009 | 08:36 PM
  #141  
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Alrighty, will do that and let you know as soon as I make the changes.

Thanks Mel

Emir-
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Old Jan 1, 2010 | 02:03 AM
  #142  
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Hey Mel,

First let me say Happy New year to you. Best wishes for you and your family.

Now back talking about rotaries

I just swapped the 37 chokes with the 40's and now the engine revs wayyyyy faster and smoother than before.

When I rev the engine it makes it really smooth past 7k and before it was failing to get just to 7k and was starving for more fuel (I believe) because it was making a cut if I accelerated the car super fast while shifting from 2nd to 3rd.

All I did was replace my needle from 200 to 300 and replace the 37 chokes for 40's. I thought I was using the 65F10 idle jets but to my surprise I am using 70F10 idle jets LOL.

I didnt touch the fuel press and now the car while I am accelerating doesnt starve for fuel or leans out, it just go up like a rocket lol.

Now I need to address the exhaust problems(leaks) that I have and fix em asap, I am sure that I am losing lots of power thanks to running with a crappy pos exhaust

Thanks again

Em-r
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Old Jan 1, 2010 | 02:13 AM
  #143  
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glad it worked out for you...a nice way to start a new year. now send me my 12pack of heines

happy new year to you too and the familia, and to all of the old school rotorheads.
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Old Jan 1, 2010 | 07:46 PM
  #144  
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Glad its running better now. So just so you know what you did. When you add a larger choke(40 from a 37), and leaving the jetting the same, you basically just made your mixture leaner by allowing more air to enter the engine. Larger choke=more air in engine=leaner mixture. So you most likely were running too rich with the previous setup, which I think someone prior was trying to tell you.
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Old Jan 1, 2010 | 10:20 PM
  #145  
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Originally Posted by ultimatejay
So you most likely were running too rich with the previous setup, which I think someone prior was trying to tell you.
u talking to me?? ala Robert De Niro in Taxi
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Old Jan 1, 2010 | 10:50 PM
  #146  
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Mi pana que lo que hay?
ive been reading this thread for a few hours this weekend,i was born in la capital ,,,hopefuly would be out there this 2010 u can fill me in on the track thats open i have a first gen 12a bridggie nitroso,,,
good luck with your project and keep posting vids i have a few buddies with starlets out here in GA usa..Also..
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Old Jan 1, 2010 | 11:45 PM
  #147  
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Originally Posted by ultimatejay
Glad its running better now. So just so you know what you did. When you add a larger choke(40 from a 37), and leaving the jetting the same, you basically just made your mixture leaner by allowing more air to enter the engine. Larger choke=more air in engine=leaner mixture. So you most likely were running too rich with the previous setup, which I think someone prior was trying to tell you.
Yes, I thought i was running lean lol because the engine stumbled when I was driving it hard from 2nd gear to 3rd gear lol. Anyways I am learning how these things works so bare with me

Originally Posted by oldrotaryman
Mi pana que lo que hay?
ive been reading this thread for a few hours this weekend,i was born in la capital ,,,hopefuly would be out there this 2010 u can fill me in on the track thats open i have a first gen 12a bridggie nitroso,,,
good luck with your project and keep posting vids i have a few buddies with starlets out here in GA usa..Also..
Hey mi pana, cuando vienes a la Republica? Let me know when you are here. I would like to know more about your project since thats what I would like to do with my starlet. 12a bridgy nitroso Tengo varias dudas acerca de lo que se necesita hacer para poner mi 12a nitroso y ese tipo de cosas. If you can give me some info te lo agradeceria

The track at la capital is very nice, ya hay pantallas que marcan los tiempos de los carros .

Emir-
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Old Jan 2, 2010 | 10:42 AM
  #148  
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Pm sent
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Old Jan 4, 2010 | 09:02 PM
  #149  
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Update:

Today I decided to inspect the spark plugs to see how they looked after being using the car with all the not so optimal running conditions .

I noticed that the plugs on the rear rotor(t2,L2) has the tan/brown color on them and I guess those are the signs of good mixture ?

On the other hand the pair of plugs on the first rotor appear to be darker and according to the explanations here those are symptoms of running rich, correct?

The main reason I am posting this is because I took the car for a ride today and the truth is that the car car runs way better than before, but it made a lil stumble when I pushed hard when going into 3rd gear, my fuel press gauge, it is still reading 3 psi and jay told me is supposed to be 4.5psi ?? I am starting to think that the reading is not accurate.....

Take a look at the pictures and let me know what you guys think.

Thanks

Emir-





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Old Jan 4, 2010 | 09:05 PM
  #150  
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maybe its time to stop using a barbie doll camera. I cant see shiet. LOL.
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