NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   Rotary Engine Building, Porting & Swaps (https://www.nopistons.com/rotary-engine-building-porting-swaps-55/)
-   -   200 Hp Na (https://www.nopistons.com/rotary-engine-building-porting-swaps-55/200-hp-na-40323/)

NCTII87 06-11-2004 12:17 AM

im looking to make about 200-225 hp out of my 87 GXL. i would love to make this power around 6-7K RPMS. i'd like to do it kinda cheap, this is gonna be my budget drag car. i'll keep addin hp as i go but ima try to hit the track with atleast 200 hp. anyways, hit me up with some tips.

psyclo 06-11-2004 12:48 AM

cheap and 200 hp on an na are oxymorons.well define cheap.

NCTII87 06-11-2004 01:04 AM

like 700$ in the motor, not including the intake and exhaust **** which i'll fab myself. the 700 includes like electronics. im gonna be pulling it apart, porting it and rebuilding it myself so im gonna need to buy the port stencils and such. i dunno, thats just a round about figure. im gonna be strippin the **** outta the car and aiming for like 8.5 second runs or something. maybe nitrous later on. i dunno if im bein a lil outta league but, y'all set me strait.

ryosuke_fc 06-11-2004 02:43 AM

You'll need about 4-5x that much hp for 8.5 second 1/4 runs in a street car. https://www.nopistons.com/forums/pub...DIR#>/wink.png



The rebuild alone will probably cost you $700 or close to it.

Drago86 06-11-2004 03:03 AM

8.5 seconds? you'll need 650++ HP to get a 2000 pound (hard weight to hit in an FC anyhow) car that fast...........

1Revvin7 06-11-2004 03:32 AM

I hope you meant 1/8th mile. lol.

bill shurvinton 06-11-2004 06:44 AM

If you fabricate a decent free flowing intake and port the engine, then 230 is eminently possible at the flywheel. Racing beat had 225 out of a ported 6-port, with the sleeves still in place using a weber wrap around manifold, which IMHO is not the best way to do it.



Bad news is that you will need to rev to to 8000. But if you have time and some mechanical and electrical skills you should be able to manage it.

83turbo 06-11-2004 07:22 AM

200 HP at 6000? No sweat - just do what these guys did:

link



(okay, I'm half joking anyway)

Travis R 06-11-2004 09:18 AM

1/2 bridge port + stand alone

NCTII87 06-11-2004 09:19 AM

i definently meant the 1/8th. theres no way in hell i ever expect any of my rotary cars to run under 11 in the 1/4. i know its possible, i just dont see me doing it. ****- after thinkin about it, i barely see this car runnin under 9. BTW- where are all the manifolds for 4bbl carbs and stuff? i havent seen one yet! what would i have to do to the car to run the carb? when i say this, i mean things like ignition and sensors that run off the ECU. well, hell, n/m- the carb gets rid of most of the sensors doesnt it? damn, im gettin myself tied in a knot. keep the info comin!


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