Comptech

Im looking for help on getting some more hp out of my 13b. I have to take the motor out do to a bad seal. I have had all the parts cleaned and checked. I would like to keep the car with in reason of building it up. So im looking to see what there is out there for the internals. I have heard of using S5 rotors to get higher compression. Other than that I dont really know what to do. I dont want to spend to much money. I would also like to know what crap i can get rid of and what I can block off. Your help is very much appreciated.

Rx-7Doctor

iTrader: (13)

Porting will yield you the most Hp as far as internal mods go. Depends on what your State has for emission laws in regards to what mods and what can and cannot be removed. I dont see that much of a gain in using the 89-91 N/A rotors. Most of the Hp gains for those years was in the intake and FI systems.

I am taking that you have a stock Se motor right now with stock injection?

Comptech

As for the emissions in my state we are never checked. It is a stock gsl-se as of rite now. Yes the injectors are stock.

Can I do anything about the changing to a better manifold or anything like that?

Rx-7Doctor

iTrader: (13)

If you want to stay injected then you can install the S4 intakes and T/body for better air flow. You can even run the 86-88 N/A AFM but to get the proper response out of it you need access to a gas analyzer for tuning. You can also port the Se manifold for better flow.

To get more Hp out of the motor the exhaust has to be addressed first. That is probably one of the highest gaining HP mods you can do N/A. You can also get Racing beats cat replacement pipe that is a good HP gainer for the money.

If you want to go carb'd with an exhaust system and port the motor then you will have lots of HP gain. It all depends on what you want.

Comptech

Thanks for the the help rx7doctor.

Anyone else?

JKM

I agree with RX7 Doctor here- Intake/exhaust is a HUGE gain on the car. You don't have to buy a huge setup, a K&N panel filter and a cat replacement pipe will be a loud, but cheap and powerful improvement.

Also, you didnt' mention anything about it, but if the car is still riding on the original suspension get that stuff replaced. When I finally got some struts and springs my car "gained" more power. In reality, it was actually putting all the power down to the ground, for once.

Rogue_Wulff

Exhaust is always the first place to start, when asking for extra power from a N/A rotary. They cannot make any additional power, unless they can get rid of the spent air/fuel mixture.
Racing Beat, and others, offer headers and full exhaust systems specificly designed for the rotary engine. Skimping on the exhaust, will leave you totally underwhelmed with any other mods you perform.

Comptech

On the exhaust note. It sounds like the racing beat setup is for me.

JKM, the suspension I know has to be replaced. It is just about dead. I had planned on just going with some kyb's and some lowering spring to get the car stiff again. I might even have to get some new sway bars. The car has 124k. My question for the exhause is how does the RB sound? I dont want to have a loud car. I want to be able to drive it all the time. This will be my new daily drive.

On the rebuilding the engine area from what I have been told so far I should just rebuild it back to stock and do bolt on's.

I will try to get some pics up of my rebuild.

Latin270

Wow Doc!!! you actually answered w/o telling him to do a search! Where's the "stick" lol, just busting your ***** doc.......you da man!

Naegleria_Fowleri

If the doctor says something, go by it. Everyone else will agree with him. This rule also applies to Trochoid, Directfreak, and a few others as well.

That being said, if you don't want to have the problems that a carb brings (i.e. - adjusting it due to climate changed throughout the year, and needing to rebuild it to clean parts every few years or so) then stay FI. If you want the most amount of power out of your car, go carb. Carbs aren't hard to tune (unless you have two carbs running the same engine and have to have them dialed in with one another).

Comptech

Thanks to everyone that has helped. I will check into a better fuel system for the car.

Comptech

As it sits rite now.

http://s113.photobucket.com/albums/n...arstuff084.jpg

And what I think went wrong.

http://s113.photobucket.com/albums/n...arstuff100.jpg