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Old 02-28-06, 03:50 PM
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need tech tips? ask here! :)

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Old 02-28-06, 05:14 PM
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None yet! Just wanted to post!
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Old 02-28-06, 05:48 PM
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Your advice should prove of great benefit to members. Just hope you do not get flooded out with newbie questions. Thanks and good luck.

regards Paul

However, I will start the questions. As you know I have a 85 12AT, a design which suffers from only 2 injectors, what would be your suggestion as to how to add two more and what size? The engine has the usual upgrades FMIC, FMOC etc.
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Old 02-28-06, 05:55 PM
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Originally Posted by PaulFitzwarryne
Your advice should prove of great benefit to members. Just hope you do not get flooded out with newbie questions. Thanks and good luck.

regards Paul

However, I will start the questions. As you know I have a 85 12AT, a design which suffers from only 2 injectors, what would be your suggestion as to how to add two more and what size? The engine has the usual upgrades FMIC, FMOC etc.
have you tried adding a fmu? that would be the cheapest way to feed more fuel into your motor
here is a link to more info on the fmu and how it works

http://www.rotaryshack.com/Products/...p?intNotice=23
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Old 02-28-06, 06:40 PM
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Do you think I could do a double whammy job?

Would it be possible for me to fab a heat sheild for my headers and also make it able to grill me some grilled cheese?
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Old 02-28-06, 07:02 PM
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Originally Posted by Tranquil
Do you think I could do a double whammy job?

Would it be possible for me to fab a heat sheild for my headers and also make it able to grill me some grilled cheese?
absolutly!! but dont forget to use a non stick spray to prevent the cheese from sticking to your new heat shield!!
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Old 02-28-06, 08:42 PM
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Do headers make a difference if you have a stock motor?
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Old 02-28-06, 08:49 PM
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Do you think I will have a clearance issue here.


I started with a 1/2 npt tapped hole but I wasnt happy with the amount of material that was left so I grinded the rest out with a die grinder and installed a 10 an fuel cell fitting. looks good to me but not to sure about clearances. Also you wouldnt happen to have a block off plate for the OMP?




Last edited by Rx-7Doctor; 12-25-08 at 09:24 PM.
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Old 02-28-06, 08:54 PM
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Originally Posted by 680rwhpbro
Do headers make a difference if you have a stock motor?
welcome to the rx7 club brad(my little brother)

in answer to your question, since your running the stock carb,you will get a small increase in power, but nothing really noticable for the money that you have to spend(in my opinion) run the straightpipe back to your primaflow and you will be fine!
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Old 02-28-06, 09:07 PM
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Originally Posted by seanrot
Do you think I will have a clearance issue here.


I started with a 1/2 npt tapped hole but I wasnt happy with the amount of material that was left so I grinded the rest out with a die grinder and installed a 10 an fuel cell fitting. looks good to me but not to sure about clearances. Also you wouldnt happen to have a block off plate for the OMP?




as usual you did a very good job sean. -10 is a good size for a turbo oil drain(you can never go too big on a oil drain for a turbo or supercharged application) i dont see any clearence issues , should work great... make sure you clean the front cover well, you dont want any of those metal shavings hiding in the small oil passages as they could cause damage to your motor..
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Old 02-28-06, 11:39 PM
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I've got my hands on a t2 intake manifold, but don't
know if it's s4 or s5 yet. I've got to wait till it
gets here to knw. I also have a RB upper intake
manifold that was on my gsl-se block. Will the t2
lower intake manifold fit the Racing Beat Gsl-se upper
inatke for my 45dcoe? If not how much is the upper
intake mani for a t2 lower? p.s. i weigh 250 and eat cheese with every meal.
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Old 03-01-06, 01:22 AM
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Originally Posted by Hyper4mance2k
I've got my hands on a t2 intake manifold, but don't
know if it's s4 or s5 yet. I've got to wait till it
gets here to knw. I also have a RB upper intake
manifold that was on my gsl-se block. Will the t2
lower intake manifold fit the Racing Beat Gsl-se upper
inatke for my 45dcoe? If not how much is the upper
intake mani for a t2 lower? p.s. i weigh 250 and eat cheese with every meal.

250 and eat cheese every meal? niiiiiccce!!
the manifold you have is the same one i use for the s4 and s5 motors. to get your manifold to fit, just slot the mounting holes(a little bit) and whala, your manifold fits the s4///s5 manifolds!!
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Old 03-01-06, 12:39 PM
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what are your opinions on teflon encapsuled coolant seels?
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Old 03-01-06, 01:50 PM
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Originally Posted by perfect_circle
what are your opinions on teflon encapsuled coolant seels?
i used those once, a customer supplied them for his engine build.. they are a different size, shape , diameter,material, that a original cooling seal.. so this changes the clearences in the motor when your torqueing the tension bolts during final assembly, this couldnt be good...they dont fit as good as the original cooling seals, so i would reccomend using the original parts for best fitment and staying within the factory tolerences..
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Old 03-01-06, 09:17 PM
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Originally Posted by 680RWHP12A
i used those once, a customer supplied them for his engine build.. they are a different size, shape , diameter,material, that a original cooling seal.. so this changes the clearences in the motor when your torqueing the tension bolts during final assembly, this couldnt be good...they dont fit as good as the original cooling seals, so i would reccomend using the original parts for best fitment and staying within the factory tolerences..
i understand your view point, but ive also heard of someone severely over heating the motor, then chiggin home, figuring the motor was toast, just to get home, to find out that everything was stil A-OKay.

so i suppose there are pros, and cons, as there are with everything. if you use them, you might survive an overheating(own fault usually) but have the motor not last as long, as apposed to OE parts that will last as long as you are careful.
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Old 03-01-06, 10:13 PM
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Originally Posted by perfect_circle
i understand your view point, but ive also heard of someone severely over heating the motor, then chiggin home, figuring the motor was toast, just to get home, to find out that everything was stil A-OKay.

so i suppose there are pros, and cons, as there are with everything. if you use them, you might survive an overheating(own fault usually) but have the motor not last as long, as apposed to OE parts that will last as long as you are careful.
if the motor gets that hot, the springs on the rotors get too hot also, and can flatten out, and as bad as warped apex seals too, no good... bottom line is... its not good to overheat your rotary motor..
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Old 03-01-06, 11:40 PM
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Robert sent you email about some major carb help.
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Old 03-02-06, 09:25 PM
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Well im new to this whole forum thing so please bear with me. Ive got an '89 fc3s (non- turbo) And my fuel pump electrical lines were cut and subsequently pulled out of the car. I was wondering if you knew where the stock location would be for me to re-wire it to. And what materials i would be needed to do the job. Im totaly clueless. And every manual and/or person ive asked doesnt have a clue either. This is my first venture into the rotary world and im just trying to make a good start. Thanks.
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Old 03-03-06, 12:43 AM
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Originally Posted by X_Facedown_X
Well im new to this whole forum thing so please bear with me. Ive got an '89 fc3s (non- turbo) And my fuel pump electrical lines were cut and subsequently pulled out of the car. I was wondering if you knew where the stock location would be for me to re-wire it to. And what materials i would be needed to do the job. Im totaly clueless. And every manual and/or person ive asked doesnt have a clue either. This is my first venture into the rotary world and im just trying to make a good start. Thanks.
please pm me with your phone # so i can call you when im in back of the car with the fuel pump cover removed, ill give you exact wire colors and where they go...
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Old 03-07-06, 02:53 AM
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Soooo the dude with the s5 turbo manifold for me threw it away because he said I took to long to get it. ***, so I got a s4 n/a manifold and just by looking at it I can tell that my rb upper manifold doesn't bolt straight to it, but I was looking and can I drill and tap the s4na lower for the outside bolts? I'm about to give up on getting this engine...
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Old 03-07-06, 03:41 AM
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Originally Posted by Hyper4mance2k
Soooo the dude with the s5 turbo manifold for me threw it away because he said I took to long to get it. ***, so I got a s4 n/a manifold and just by looking at it I can tell that my rb upper manifold doesn't bolt straight to it, but I was looking and can I drill and tap the s4na lower for the outside bolts? I'm about to give up on getting this engine...
drill and tap the lower manifold, i just mated your upper with a 4 lower(88) and you can't slot the holes...

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Old 03-08-06, 12:37 PM
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I'm shooting for 400+rwhp in my FB, but I currently have a stock drivetrain mated up to a S5 TII block. Is there any way I can upgrade my drivetrain to handle drag radials/launches without bankrupting myself for the rest of the project?
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Old 03-08-06, 10:51 PM
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Originally Posted by 680RWHP12A
you could do that or slot the holes in your upper manifold so it will bolt right up to the s4 lower mnifold..
It doesn't look as though if I slot the holes that it will work on the N/A lower manifold. I'll give it a go and see how it werks.
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Old 03-08-06, 10:59 PM
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Originally Posted by snub disphenoid
I'm shooting for 400+rwhp in my FB, but I currently have a stock drivetrain mated up to a S5 TII block. Is there any way I can upgrade my drivetrain to handle drag radials/launches without bankrupting myself for the rest of the project?
84-85 rearend had larger axles. Other than that prepair to be bank rupt.
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Old 03-08-06, 11:12 PM
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i would like to know what motor to get the 2nd gen 13BET motor ot the 3rd gen 13BETT motor?
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