horsepower?
hey guys how much would a stock auto rx8 have and how much would a stock manual rx8 have?:sadwavey:
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less than you're hoping
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because im planning to buy a supercharger..... but would anyone know how much hp?
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:lol: such a loaded question...
So... lets start here... http://en.wikipedia.org/wiki/Mazda_RX-8 (SE3P) 2003 - 2008 2003 - 2008 Mazda RX-8 (rear) The first version of the RX-8, chassis code SE3P, was produced from model year 2003. It is powered by the RENESIS 13B-MSP (multi side port) Wankel rotary engine displacing 1.3 litres non-turbo (1308 cc). At launch, the RENESIS was available in standard and high power versions. The 4-port standard RENESIS produced 210 hp (160 kW) and was coupled with either a 5-speed manual or 4-speed automatic transmission. The 6-port high power RENESIS was only available with a six-speed manual transmission and was rated at 250 hp (190 kW). For the North American market, Mazda revised the reported output rating of the standard and high power RENESIS soon after launch to 197 hp (147 kW) and 238 hp (177 kW), respectively.[2] With exhaust ports now located in the side housing, the RENESIS boasted improved fuel efficiency and emissions rating over the 13B-REW employed by the last RX-7, thereby making it possible to be sold in North America. At launch, the RX-8 was available in various models in different markets around the world. Standard models include: 6-speed manual "High Power" with a claimed output of 184 kW (250 PS; 247 hp) and a 9,000 rpm redline (Sold in North America). This model was equivalent to the "Type S" trim in Japan. 5-speed manual "Standard Power" tuned to 141 kW (192 PS; 189 hp) with the redline reduced to 7,500 rpm. This powertrain combination was not available in North America. 4-speed automatic tuned to 141 kW (192 PS; 189 hp) in some markets (NZ), while the U.S. automatic is stated to deliver 158 kW (215 PS; 212 hp) . 6-speed automatic (available in the U.S. market after 2006) developing 158 kW (215 PS; 212 hp) and 159 lb·ft (216 N·m) of torque with a redline at 7,500 rpm.[3] This was the revised standard RENESIS, now with two extra intake ports like the high power version. Automatic versions all had low output/low rpm engines due to the lack of availability of a transmission that would reliably turn 9,500rpm And that is just for starters. There were also published numbers for the MT of 235, 232, and 228. But that's just published numbers at the crank or flywheel. Then there is what the car actually puts out on the dyno, which, if fully healthy is around 180-190whp. But most RX-8s are decidedly unhealthy from lack of proper owner care, either through compression loss, lubrication problems, ignition degradation, catalytic converter restriction, sensor fouling or failure, etc... There have been "totally stock" MT RX-8s put down numbers as low as 140whp on a dyno, just from being in terrible condition. |
thanks man mines 6 port and i havent got it tuned yet but once i get this supercharger ill post pics and dyno charts!
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Originally Posted by socompro
(Post 3964928)
thanks man mines 6 port and i havent got it tuned yet but once i get this supercharger ill post pics and dyno charts!
Some of the wiki data is wrong this way. In other words the 6spd auto engine has the same 159 ft/lbs torque, and whatever hp, but can't rev to 9k rpm to get the hp the manual gets. I'd really like to know rwhp of a 6spd auto, and will dyno myself if I get the chance. So why don't you get the dyno before and after? |
Your original question: 232 engine hp manual-212 engine hp 6spd auto in the US 6 port time period that you're asking about.
RWHP? - whatever the dyno says (approx). |
ok i will gonna order the supercharger soon its 6k for petiti supercharger?
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Sorry to revive the thread on such a simple topic but surprisingly i couldn't find concrete answers on the internet to this question. i have a 2007 rx8 6 port 6 speed manual rated at 238hp from the factory, BUT that is CRANK horsepower correct so when i have my car dynoed ~190 is the NORMAL number i should see for a healthy engine correct. Basically what im trying to figure out is that around 190 to the wheels is a "healthy" number and i can rest assured my engine is "good" for now lol.
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Originally Posted by Jamiesss
(Post 4890945)
Sorry to revive the thread on such a simple topic but surprisingly i couldn't find concrete answers on the internet to this question. i have a 2007 rx8 6 port 6 speed manual rated at 238hp from the factory, BUT that is CRANK horsepower correct so when i have my car dynoed ~190 is the NORMAL number i should see for a healthy engine correct. Basically what im trying to figure out is that around 190 to the wheels is a "healthy" number and i can rest assured my engine is "good" for now lol.
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Originally Posted by Brettus
(Post 4890950)
Originally Posted by Jamiesss
(Post 4890945)
Sorry to revive the thread on such a simple topic but surprisingly i couldn't find concrete answers on the internet to this question. i have a 2007 rx8 6 port 6 speed manual rated at 238hp from the factory, BUT that is CRANK horsepower correct so when i have my car dynoed ~190 is the NORMAL number i should see for a healthy engine correct. Basically what im trying to figure out is that around 190 to the wheels is a "healthy" number and i can rest assured my engine is "good" for now lol.
Yes 190whp, even on a MT car, is pretty high. If the car is 100% stock you will get a number like that if you have a nearly new motor. On a 6 port auto, expect just a little bit less than that with a nearly new motor. Below (sadly) is a 4 port 4 speed AT Rx8 with a Mazda reman installed only 6,000 miles prior, with Mazdaspeed/AEM intake, RB header, gutted cat, Magnaflow catback, upgraded coils, everything I could do as far as bolt-on mods are concerned besides nitrous or turbo/supercharged. PS: Desert Glory FTW https://cimg7.ibsrv.net/gimg/www.rx8...485e0c347b.jpg |
Originally Posted by Jamiesss
(Post 4890945)
Sorry to revive the thread on such a simple topic but surprisingly i couldn't find concrete answers on the internet to this question. i have a 2007 rx8 6 port 6 speed manual rated at 238hp from the factory, BUT that is CRANK horsepower correct so when i have my car dynoed ~190 is the NORMAL number i should see for a healthy engine correct. Basically what im trying to figure out is that around 190 to the wheels is a "healthy" number and i can rest assured my engine is "good" for now lol.
Depending on the dyno it could be 160 and be fine. Some dynoes are more optimistic than others. The dyno is useful for a relative comparison when you want to know the effect of a mod so you have a graph that shows that, say, a tune gave you a 10% increase. The absolute values are pretty useless by themselves. |
Compression and block tests are far better for assessing the health of your engine.
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Originally Posted by laythor
(Post 3964898)
less than you're hoping
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guys that kid hasnt been active in a long time thank god. little punk is a pos and fucked me and my bros shop over big time. hoping he has ass cancer
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My apology, wasn’t aware of that, but will be mindful of it going forward.
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Hp
Hi.my RX8 is 2003 6speed multi side port with s.number SE3P is 250 hp? Or less? The car imported from Japan
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According to Mazda its 232 flywheel hp. The 250hp thing was a miscalculation Mazda had to restate early in the car's life.
Of course being almost 20 years old, with OK not stellar engine condition you can expect 160-170 at the wheels. |
Can help you here.
I have JDM 4 speed auto and have converted it to 6 spd manual. We did a dyno run as a standard 4 spd 4 port auto and it was hopeless. We then did a run on the same engine but with a 6 spd manual installed no other mods. Then a decat and tune etc. https://cimg9.ibsrv.net/gimg/www.rx8...7154955a1b.jpg Manual in colour, auto faint. https://cimg0.ibsrv.net/gimg/www.rx8...73474fad64.jpg Decat and tune Manual All figures are Wheel horsepower and Wheel torque - i.e. what it's actually putting down at the wheels, no run down fudge calculations. |
Wow ... great comparison test results there . Nice job !
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Yep, in terms of peak numbers the auto box costs 15-20% torque and HP at the wheels.....and in the real world you're also less likely to be in the power band due to the long gearing.
Basically, if you want more power out of your Auto RX-8 convert it to manual and hey presto a 20% increase at the wheels. |
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