RX8 Rotors in 13b
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OH SNAP!
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RX8 Rotors in 13b
What would the benefit be to this? also would it just be a swap out or is more required? What would be the cost of this? I was thinking of going to a junkyard and seeing if i can find a RX8 there and strip the rotors out.
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Driving definitions: Understeer is when you hit the wall with the front of the car and Oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall and Torque is how far you take the wall with you.
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Why are you thinking of running the RX8 rotors for?
The compression?
The bevel?
If you did get RX8 rotors and put them in yoru car,that doesnt mean you will be getting the same HP/TQ as the RX8.
If you want them for the bevel,and help with port timing,then you can do that with 13b n/a rotors.
You find an RX8 in a junk yard?
You will have a better chance finding Osama BinLaden
The compression?
The bevel?
If you did get RX8 rotors and put them in yoru car,that doesnt mean you will be getting the same HP/TQ as the RX8.
If you want them for the bevel,and help with port timing,then you can do that with 13b n/a rotors.
You find an RX8 in a junk yard?
You will have a better chance finding Osama BinLaden
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OH SNAP!
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No Jeff had a F1 car using a second gen 13b engine with rx8 rotors in it and i was just wondering what the benefit of it was. I didnt know if it would be teh same as running s5 rotors in a s4. Due to the weight of them or something. If there was any real(noticeable) preformance benefit if was thinking about adding it on the things to do list when i need a rebuild.
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Driving definitions: Understeer is when you hit the wall with the front of the car and Oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall and Torque is how far you take the wall with you.
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The seals on the renesis rotors are different than the ones on the regular 13b, the side seals are in a different place (to hold the pressure and heat from the side exhaust ports) and the apex seal is thinner.
If you did put them in a 13b with the normal peripheral exhaust, you should probably get the rotors machined to take normal 13b apex seals.
If you did put them in a 13b with the normal peripheral exhaust, you should probably get the rotors machined to take normal 13b apex seals.
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1986 Mazda RX7 GXL - "Champagne"
134.7 RWHP - Going slow in style
1986 Mazda RX7 GXL - "Champagne"
134.7 RWHP - Going slow in style
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OH SNAP!
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are there any benefits to having them in?
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Driving definitions: Understeer is when you hit the wall with the front of the car and Oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall and Torque is how far you take the wall with you.
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I dont want to dig up the thread,But Alex,the bevel 13b n/a rotors on rx7club..
theres very good pics in there.
I doubt Jeff got his rotors from a junk yard.
Go here to get an idea on what new rotors cost,theres no rennesis ones listed,but get the idea.
If you plan on rebuilding your engine,Dont expect for outragous HP gains.I doubt you will see over 220 rwhp.Maybe 200 ish
If I was going to do a 6 port and stay FI.
Some sort of port work,intake/exhaust
throttle body/intake porting
fuel pump
550 primaries/680 - 720 secondaries
ONLY with a AFC or standalone.
I think a standalone is overkill on a n/a set up.
and 2 of the big bottles
theres very good pics in there.
I doubt Jeff got his rotors from a junk yard.
Go here to get an idea on what new rotors cost,theres no rennesis ones listed,but get the idea.
If you plan on rebuilding your engine,Dont expect for outragous HP gains.I doubt you will see over 220 rwhp.Maybe 200 ish
If I was going to do a 6 port and stay FI.
Some sort of port work,intake/exhaust
throttle body/intake porting
fuel pump
550 primaries/680 - 720 secondaries
ONLY with a AFC or standalone.
I think a standalone is overkill on a n/a set up.
and 2 of the big bottles
Thread Starter
OH SNAP!
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actully it wasnt jeffs car it was one of his customers. It just happened to be there wehn i got my diffrential from him. Theres a list of things i want to do with the car but most are really exspensive so im trying to save up a huge lump sum (which ill have when isell my other car) and when i get tax return. To fund this. I want it all done at once.
Like when i get a rebuild i want to get stage 2 street ported or a bridge port. im not going to use NOS i dont believe in the stuff since its not a constant amount of power when the bottle is empty so is the hp gain. So im looking for things i can do to gain HP while the engine is already open. Any suggestions?
Tony, you seem to be familar with the car do you know if it really had a previous rebuild on it? When i bought it the guy said he has one done and it has 40kish on the rebuild. Is this true or not?
Like when i get a rebuild i want to get stage 2 street ported or a bridge port. im not going to use NOS i dont believe in the stuff since its not a constant amount of power when the bottle is empty so is the hp gain. So im looking for things i can do to gain HP while the engine is already open. Any suggestions?
Tony, you seem to be familar with the car do you know if it really had a previous rebuild on it? When i bought it the guy said he has one done and it has 40kish on the rebuild. Is this true or not?
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Driving definitions: Understeer is when you hit the wall with the front of the car and Oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall and Torque is how far you take the wall with you.
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Originally Posted by CrypticApathy
actully it wasnt jeffs car it was one of his customers. It just happened to be there wehn i got my diffrential from him. Theres a list of things i want to do with the car but most are really exspensive so im trying to save up a huge lump sum (which ill have when isell my other car) and when i get tax return. To fund this. I want it all done at once.
Like when i get a rebuild i want to get stage 2 street ported or a bridge port. im not going to use NOS i dont believe in the stuff since its not a constant amount of power when the bottle is empty so is the hp gain. So im looking for things i can do to gain HP while the engine is already open. Any suggestions?
Tony, you seem to be familar with the car do you know if it really had a previous rebuild on it? When i bought it the guy said he has one done and it has 40kish on the rebuild. Is this true or not?
Like when i get a rebuild i want to get stage 2 street ported or a bridge port. im not going to use NOS i dont believe in the stuff since its not a constant amount of power when the bottle is empty so is the hp gain. So im looking for things i can do to gain HP while the engine is already open. Any suggestions?
Tony, you seem to be familar with the car do you know if it really had a previous rebuild on it? When i bought it the guy said he has one done and it has 40kish on the rebuild. Is this true or not?
Every one has 100 diffrent names for port work.
I have seen and heard 6 port engines with bridge porting.I havent seen any numbers or track times to see if they are worth it.
You are better off staying with a street port.
In a bridge port you have to knotch the rotor housings.
I remember something about the engine.I dont think it was rebuilt,more like replaced with another engine,cause the car caught fire or something.
https://www.tamparacing.com/forums/member.php?u=13066
ask him
eats babies
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There is NO BENEFIT FROM USING Rx8 rotors. I have contacted Mazda racing usa about these and they said that they switched the s5 rotors from their n/a FC race car with rx8 ones and it had ended up with less trq, and less horsepower.
If you bevel the rotors, you would have to bevel the counterweight. It is not a good idea at all to the cut the rotors.
Rotary7~You can have 200hp on an s4 6port with a streetport with no problems at all. But you HAVE to switch out the n/a ecu (or go carb'd which I prefer) but that is what makes breaking 200hp on a 6port nearly impossible. You need something that controls spark AND fuel or you WILL NOT break 200rwhp. What I have seen in my days, using the stock ecu with everything portmatched with a SP, safc, you will hit 190rwhp.
If you bevel the rotors, you would have to bevel the counterweight. It is not a good idea at all to the cut the rotors.
Rotary7~You can have 200hp on an s4 6port with a streetport with no problems at all. But you HAVE to switch out the n/a ecu (or go carb'd which I prefer) but that is what makes breaking 200hp on a 6port nearly impossible. You need something that controls spark AND fuel or you WILL NOT break 200rwhp. What I have seen in my days, using the stock ecu with everything portmatched with a SP, safc, you will hit 190rwhp.
Thread Starter
OH SNAP!
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why ask him was he the previous owner or something? I just wanna know who im asking a question to is all. Im sure theres a few NA 200+RWHP. therse a guy that hits 195RWHP on nopistons on a na 6port.
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Driving definitions: Understeer is when you hit the wall with the front of the car and Oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall and Torque is how far you take the wall with you.
