2nd Generation Specific 1986-1992 Discussion

How Much Horsepower Am I Lookin At?

Old 03-14-2004, 08:18 AM
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It is almost that time of the year for me where I can put my RX-7 back on the road since the end of September. I am having withdrawls and getting very ansy to put it on the road again. But my question is how much power am I looking at with all of the goodies I have bought over the winter. What I have done is:

-full custom intake arm w/ HKS filter

-throttle body porting and mod

-racing beat header

-high flow cat/ but most of the time it will be straight piped. Only need the cat for

putting it on the road.

-Borla cat back exhaust system

-HKS spark plugs w/ 10mm wires

-And an Apex'I S-AFC

Thanks for any input.
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Old 03-14-2004, 12:51 PM
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im assuming its a n/a because of the header right??? i am also interisted in the h/p #s because this is verry simmilar to what i would like to do to my own n/a during my rebuild
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Old 03-14-2004, 12:52 PM
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depends how you tune your S-AFC
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Old 03-14-2004, 01:13 PM
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What do you mean "It all depends on how you tune your S-AFC"? Yes it is an 87 N/A
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Old 03-14-2004, 01:49 PM
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Mileage and compression #s? 130rwhp.
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Old 03-14-2004, 02:00 PM
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110,000 miles, and I dont know the compression #'s
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Old 03-14-2004, 03:39 PM
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imma go out on a limb and say 137 before you tune the safc and 155 after
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Old 03-14-2004, 03:58 PM
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how about for a s5 180-190???
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Old 03-14-2004, 08:32 PM
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That is fairly respectable I think. Anything else that I could do besides a rebuild and streetporting?
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Old 03-14-2004, 10:06 PM
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I've seen 189hp at the tire on 89-91 internals, no portwork, stock manifolds, factory ECU. This was on the shops ITS race car nearly 2 years ago.



I personally have 183 whp and a list of my mods are below, please note STOCK PORTS



86' N/A untouched internals. (about 13,000 miles on the clock)

RB header strait back to Borla Cat-back exhaust.

S5 intake manifold set-up. Port matched Upper-Middle-Lower

TB mod has been done. 5th/6th sleeves removed, VDI wired open.

No accessories attached to the motor for the exception of Altenator.

NO emissions equipment is left on the motor. Fuel lines have been re-routed directly to my fuel rail, bypassing the vaccum rack.

running 460cc primary, 550cc (T2) secondary injectors

Microtech LT-8 currently running on slightly modified base map.



I still have another 5-7 HP to be had from proper tuning. I just installed my microtech this weekend and dyno'd the car with the modified base map. I am quite pleased with the results 183whp / 129 lb ft.



Strange numbers i suppose but quite respectable for N/A





-Markus Reschny

www.mazsport.net
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