Engine Dyno testing of Renesis
#151
Originally Posted by california style
I cant believe that thing about the oil cooler!
What were you thinking, its crazy!
(is that ok?)
What were you thinking, its crazy!
(is that ok?)
Cheers,
Hymee.
#152
Originally Posted by takahashi
I was thinking when I watch the video - Why is only the middle tube is red hot on the extractor but not the other 2? Camera angle?
Also how come the shape of the extractor is different from the other that I saw.... wat do you know about extractor Taka...
Also how come the shape of the extractor is different from the other that I saw.... wat do you know about extractor Taka...
The shape is as fitted to a test vehicle about 2 years ago. It ran a 13.0. It wasn't an RX-8, so less attention needed to be made to fitting it in. The only other one I can think of that I posted pics of is Wildcard's headers, and these do actually fit the RX-8 without modification to any engine mounts etc.
Cheers,
Hymee.
#155
Originally Posted by takahashi
I was thinking when I watch the video - Why is only the middle tube is red hot on the extractor but not the other 2? Camera angle?
because it has twice the exhaust pulses running through it. the other ones only see exhaust from their rotor, while the middle sees it from both rotors.
#156
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All this talk of hp numbers and speculation. All I want to see is how much extra we can put down reliably and just what can that do for us in the 1/4 mile. I'm not interested in drag racing my RX-8, but getting a baseline type 1/4 mile figure or trap speed tells me more than any hp numbers.
#157
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what I love to see is a tuner like you hymee try to extrac as much power as posible keeping the engine NA and without briged porting, but doing everything else, header , porting, intake, fuel mods, anything that you can do.
#158
Bigus Rotus
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Originally Posted by Hymee
The shape is as fitted to a test vehicle about 2 years ago. It ran a 13.0. It wasn't an RX-8, so less attention needed to be made to fitting it in. The only other one I can think of that I posted pics of is Wildcard's headers, and these do actually fit the RX-8 without modification to any engine mounts etc.
#159
Registered User
Originally Posted by dmp
And 7% less than the then-rated power of 238.
#161
Registered
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oil cooler
Well without finding my glasses and since you really want someone to find it I'll guess and say the following. A small oil cooler droped into a bucket of water will boil the water and keep the oil temp at 212f. As long as you keep replacing the water that is.
In practical terms you can put it into the well where you dump the dyno water.
Or intercool it with water feeding the dyno.
In practical terms you can put it into the well where you dump the dyno water.
Or intercool it with water feeding the dyno.
Last edited by Richard Paul; 05-26-2006 at 08:11 PM.
#162
Registered Lunatic
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Originally Posted by Hymee
The only other one I can think of that I posted pics of is Wildcard's headers, and these do actually fit the RX-8 without modification to any engine mounts etc.
Oh, and one more thing... will they be CARB-approved?
#163
Rotary lover
Hymee,
thanks for all the info, it is great.
(I didnt check the vid yet, will download later)
I think our guys just want to know on that siamese center header pipe if it is split in the centrer (two smaller pipes into one, or one big one(looking on the inside of the pipe)) and then header lengths. same length or not? (all 3).Not your whole secret just right direction.
I know someone here by us played around with the headers a bit and didnt gain too much(actually very little) the big gain was in the rest of the pipe, 3" with no cat and big silencer at back or two small ones, this was the best call.
Thanks
thanks for all the info, it is great.
(I didnt check the vid yet, will download later)
I think our guys just want to know on that siamese center header pipe if it is split in the centrer (two smaller pipes into one, or one big one(looking on the inside of the pipe)) and then header lengths. same length or not? (all 3).Not your whole secret just right direction.
I know someone here by us played around with the headers a bit and didnt gain too much(actually very little) the big gain was in the rest of the pipe, 3" with no cat and big silencer at back or two small ones, this was the best call.
Thanks
#164
Rotary lover
Just a thought
In 1991, the Mazda 787B, 4 rotor peripheral port motor, with that technology(15 years old) made 700HP on the flywheel.
OK it was a real works motor, but truly possible, I think now even more.
In 1991, the Mazda 787B, 4 rotor peripheral port motor, with that technology(15 years old) made 700HP on the flywheel.
OK it was a real works motor, but truly possible, I think now even more.
#165
So let me just get this straight...
In 2003 the RX8 supposedly had 250 BHP
In 2004 the RX8 supposedly had 238 BHP
In 2006 the RX8 supposedly had 232 BHP
but for realz this entire time it has about 210 stock? WTF mates? How can a car company do that and get away with it?
In 2003 the RX8 supposedly had 250 BHP
In 2004 the RX8 supposedly had 238 BHP
In 2006 the RX8 supposedly had 232 BHP
but for realz this entire time it has about 210 stock? WTF mates? How can a car company do that and get away with it?
#167
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Since you have over a thousand posts, i assume you know the reason behind the change from 250 to 238 to 232...
My best guess is Mazda used an engine that put out power within the limits(4%??) of the test, so they can advertise it as 232.
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My best guess is Mazda used an engine that put out power within the limits(4%??) of the test, so they can advertise it as 232.
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Live sex webshows
Last edited by Renesis_8; 09-11-2011 at 08:47 AM.
#169
Doesn't anyone understand a baseline? You've got the car; you know how it drives; so the number doesn't mean much anymore. The only question is how much do the changes you make effect the engine you have. Thanks for doing it right Hymee.
#170
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that is the problem, there has been engine's that dyno in the 200+ rwhp range and engines in the 170 rwhp, so there is a really large discrepancy ( hope I spell that right) from engine to engine.
#171
Registered
^ The really strange thing about that is that the Formula Mazda cars all run factory built Renesis engines that are no different than the ones in the RX-8. They are extremely consistent there in the power department.
#173
Originally Posted by rotarygod
^ The really strange thing about that is that the Formula Mazda cars all run factory built Renesis engines that are no different than the ones in the RX-8. They are extremely consistent there in the power department.
but i wonder if they check all those on the same dyno before they're installed...
one guy over here does a run on a dd in 100* weather on 91 octane, while another guy does one on a dynojet in 758 weather... coolant temps, the traction control stuff, etc etc etc etc... i think the engines are more consistant than the dynos lead us to believe.
#174
Originally Posted by cleoent
but for realz this entire time it has about 210 stock? WTF mates? How can a car company do that and get away with it?
Cheers,
Hymee.
#175
Originally Posted by ineed2jump
Doesn't anyone understand a baseline? You've got the car; you know how it drives; so the number doesn't mean much anymore. The only question is how much do the changes you make effect the engine you have. Thanks for doing it right Hymee.
Cheers,
Hymee.