Ok, I have a pretty basic question, what do I need to do to get 200HP out of my 12A? I want to keep it NA, so do I need to port it? I am pretty sure I will need to get a better flowing carb, and it already has long tube headers. Also how much is to gain by goin with the DLIDFISsystem? I want to show the people with V8's what the "stupid ricer" can do..... thanks for your help

 

Ain't gonna happen and be streetable, so which is more important. An RX-7 you can drive on the road or an RX-7 that can only run at a drag race track?

Also, an RX-7 can be "riced" out but is not considered a "ricer."

DLIDFIS might get a 5% increase in power but only if you do the plugs right and it's really just showing that your older ignition system wasn't up to snuff. You'll need the bottle to hit 200 and then you're also counting the months before it's one dead 12A.

At 14, time is on your side. Maximize the suspension and brakes first and then go to the exhaust and then the intake and finally, ALL that stuff can be bolted on when you swap in the 12A engine you rebuild yourself. You might hit 165 to 170 HP at the flywheel if it's all optimized with a big streetport and it should still be streetable...now, a lower shot of the good juice will pop you to 200 since you'll have used good apex seals when you rebuilt the engine. That combo should live for years.

Mario III

 

Streetable will be your deciding factor...I had a 12a monster bridge do 250 whp with a shitty tune on a holley.but low down it sucked and only used it for track days, driving it around town would be annoying...
you may be able to do a eyebrow bridge port and acheive 200 whp and have better driveability...
but best option and coolest way to do it....( i did my miata rotary swap this)

Blow through carb on low boost made me 310 at flywheel..using a simple weber set up and just 5 psi boost....

I can hook you up for a nikki carb set up and you will easily get your power quest with a nice street port and LOOK VERY COOL AS WELL!!

 

From all that I've read and from hearing a small bridgeport in an RX-3 that couldn't idle below 1200 rpm, once you go bridgey, you've killed the car as a daily driver.

 

Hmm, so should i go DLIDFIS or get a new carb first? and BTW itll be a while before I have enough money for a blowthrough setup but that would be sick. Im probably gonna save money for a set of coilovers this summer and im prob about to buy a set of '83 BBS Lim. Ed. wheels...and I have two parts cars for extra parts.

 

well my miata set up cost me about 900 bucks but that was with a brand new 48 weber side draft....you can send your niki in and have it boost preped..then the hat is only about 250...you can pick a decent sized turbo for about 300-500 ...then your all set pretty much..

 

mar3..my miata is a full bridge and i ide at about 1200-1300 rpm.....but i dirve it ont he street ok...just a bit too loud rigth now..lol need to tone it down

 

Should I rebuild the motor soon even though it passed a compression test? I had to use the homemade version(with a piston type tester with the valve depressed) so I dont have exact #s, but all the seals still seal

 

if your getting a good steady reading on each housing above lets say 90 you should be good...

 

Ok, so since i do not want to use the bottle, the best idea seems to be a blowthrough carb setup right? If so can I use a stock turbo II turbo?

 

sure you can use a stockie.....if you dont have one yet then i would definitely look for a s5 turbo....they are a bit better flow and upgraded over the S4 ....but anyone will work fine....
believe me though you will want to go bigger right as soon as you drivew it..LOL
I am running a TO4E garret at 6 psi...and already I want to go bigger.....

I have a friend who runs a bigger turbo and puts down 550 to the wheel at the same 6 psi...i put down just about 300....LOL

any help i can give you i will

cheers

henry

 

lol 550 would be a bit overkill on my first project car, but i see your point. I plan on eventually plan on takin the rex down to Rotary Performance in Dallas for an aggressive street port and I was thinkin along the same lines as you with the Weber side-draft....anyway, because i def dont have the money for a bridgeport will it put out 200 on a streetport?

Wyatt

 

Why blowthrough? Why not go with an EFI system?

A S5 turbo on a 12A should make 250HP, which will make for a fun 1st gen. No porting will be necessary at first, but if you are planning on opening the engine later, then you will want a street port. Major gains can be made by opening up the 12As pathetically small exhaust ports. Don't consider a bridgeport. Not necessary.

 

HAHAHA Aaron ...when i saw you posted here I knew before i even read your post you would say EFI.....of course efi would be better , but cost and tunning and such? I know you love the efi set up since your familiar and have done well with it.....I on the other hand love carbs,,..beign old school as i am..and have had great succes with it...most recently my BP miata which feels wicked fast....runs great and I am waiting eargerly for spring..LOL


Anyway 84GSL....you wont neeed to BP to enjoy your car...streetport it and do either blowthrough or efi......and have fun

 

I know its alot of money, but what about the supercharger. It gives excellent low end torque for what the 12a needs, and would defintly go pass 200hp mark. From what I hear its safer than turbo even though it wont producr more hp than one.

 

1. Freeflowing exhaust
2. Modified Nikki carb (used to be Sterling, now Rich is making them)
3. Remove everything under the hood that doesn't need to be there (lots of weight in there)
4. Basic tuneup stuff like plugs/wires/dizzy cap/etc.
5. Suspension from SHQE Manufacturing / RE-Speed

Then you will have a lightweight corner carver that will be just plain fun. Forget about horsepower numbers and enjoy a true sports car. If you want to race, then take them someplace with lots of turns so you can laugh at them. If you want to race straight line, then you should've bought a mustang.

Adding boost leads to apex seals shooting out your exhaust. Experts can do it, and keep them alive, but beginners should be looking for simplicity in my opinion.



.

 

There will be a lot of emissions removal but the simple fact is 200 aint gonna happen without a bridgeport,boost, or spray.

There will be a long debate about this I'm sure ....but you could do an affordable unique solution like my brother is building. A 100 wet shot on a window switch setup. Basically you flip the arming switch and it sprays at a set range of rpms. For example 2000rpm to 6000rpms.

With that you might need a big bottle...especially if you drive like him lol..