Is this just another rumor???
#1
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Is this just another rumor???
Hey guys,
I keep hearing that the Rx-8's dont have to have rebuilds so soon because they run a quart of oil in a tank of gas every 5,000 miles to keep the seals lubed up?? Is this a total crock of ****??? If its true, should I run a quart through my 7??? Thanks guys!!
I keep hearing that the Rx-8's dont have to have rebuilds so soon because they run a quart of oil in a tank of gas every 5,000 miles to keep the seals lubed up?? Is this a total crock of ****??? If its true, should I run a quart through my 7??? Thanks guys!!
#5
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Mix it
Search for "Pre-mix" or "Premixing". Should be quite a bit out there. Feel free to check the Rx-8 forums too.
I have yet to read a good reason not to pre-mix.
-Rotary4tw
I have yet to read a good reason not to pre-mix.
-Rotary4tw
#7
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It sounds like you aren't aware that all rotaries inject oil into the combustion chamber to lubricate the apex seals and to cool the rotors. In fact, the Renesis injects LESS oil than any previous rotary motor.
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#9
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Yeah, to sum this up:
1) RX-8s and RX-7s inject oil into the chamber. Assuming your OMP and oil injectors are working properly, it's been happening all along. (Some guys remove the oil injection system and dump the oil directly into their fuel - aka premixing)
2) The reason 3rd gen RX-7 engines die sooner is because of boost. 10psi is a lot more combustion going on in the same space, and this extra heat does cooks the engine a lot more. Boosting a Renesis to 10psi would reduce the engine life to FD levels.
Dave
1) RX-8s and RX-7s inject oil into the chamber. Assuming your OMP and oil injectors are working properly, it's been happening all along. (Some guys remove the oil injection system and dump the oil directly into their fuel - aka premixing)
2) The reason 3rd gen RX-7 engines die sooner is because of boost. 10psi is a lot more combustion going on in the same space, and this extra heat does cooks the engine a lot more. Boosting a Renesis to 10psi would reduce the engine life to FD levels.
Dave
#10
White chicks > *
iTrader: (33)
Originally Posted by dgeesaman
Yeah, to sum this up:
1) RX-8s and RX-7s inject oil into the chamber. Assuming your OMP and oil injectors are working properly, it's been happening all along. (Some guys remove the oil injection system and dump the oil directly into their fuel - aka premixing)
2) The reason 3rd gen RX-7 engines die sooner is because of boost. 10psi is a lot more combustion going on in the same space, and this extra heat does cooks the engine a lot more. Boosting a Renesis to 10psi would reduce the engine life to FD levels.
Dave
1) RX-8s and RX-7s inject oil into the chamber. Assuming your OMP and oil injectors are working properly, it's been happening all along. (Some guys remove the oil injection system and dump the oil directly into their fuel - aka premixing)
2) The reason 3rd gen RX-7 engines die sooner is because of boost. 10psi is a lot more combustion going on in the same space, and this extra heat does cooks the engine a lot more. Boosting a Renesis to 10psi would reduce the engine life to FD levels.
Dave
Thank you
You cleared up at leat 30% of the chaos floating around on different boards.
#12
Porque tan serio?
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Originally Posted by dgeesaman
Yeah, to sum this up:
2) The reason 3rd gen RX-7 engines die sooner is because of boost. 10psi is a lot more combustion going on in the same space, and this extra heat does cooks the engine a lot more. Boosting a Renesis to 10psi would reduce the engine life to FD levels.
Dave
2) The reason 3rd gen RX-7 engines die sooner is because of boost. 10psi is a lot more combustion going on in the same space, and this extra heat does cooks the engine a lot more. Boosting a Renesis to 10psi would reduce the engine life to FD levels.
Dave
#13
Original Gangster/Rotary!
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To add to what has been said above----boosted rotaries are much more prone to detonation than normally aspirated ones. detonation spells doom for apex seals, compression, and engine longevity.
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