How much boost are you stock internals 3rd gen guys using on pump gas?
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How much boost are you stock internals 3rd gen guys using on pump gas?
Just curious what boost levels you guys are using for daily driving and using pump gas. Also what octane because in Cali high octane pump is 91 and what turbo are you running. I am asking because I will be dropping a stock FD motor into my FB with a single turbo 60 trim and want the motor to last until at least the end of the year.
So here is what I need to know?
1. boost?
2. Octane?
3. turbo?
4. Miles on the motor?
Thanks.
So here is what I need to know?
1. boost?
2. Octane?
3. turbo?
4. Miles on the motor?
Thanks.
#6
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On that 91 octane **** gas, I wouldnt run much more than 13 psi.
I run 17 psi on 93 octane with water injection on my 500R/67mm single.
Edit: unless you're changing your compression ration somehow, it doesnt matter if your internals are stock or not wrt 'safe' boost on pump gas.
I run 17 psi on 93 octane with water injection on my 500R/67mm single.
Edit: unless you're changing your compression ration somehow, it doesnt matter if your internals are stock or not wrt 'safe' boost on pump gas.
Last edited by GoodfellaFD3S; 05-21-08 at 11:44 PM.
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Originally Posted by Hit Redline
So here is what I need to know?
1. boost?
2. Octane?
3. turbo?
4. Miles on the motor?
1. boost?
2. Octane?
3. turbo?
4. Miles on the motor?
2.) 10 gal 100 octane, 6-8 gal 91 octane
3.) Stock Seq Twins
4.)8500 with new housings, rotors, plates
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17 psi on 93? How long has your motor lasted?
#13
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What about AVgas? I would think it would be pretty easy to come by and would be a lot cheaper than $7. Of course, it has been a lot of years since I filled an aircraft at an FBO, but it might be worth checking out if you have a general aviation airport nearby.
#17
1)Compression pressure. The more you compress air, the hotter it gets.
2)Intercooler efficiency
#20
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1) .8 bar and 1.1 bar (depending on how much fuel I feel like burning)
2) 94 Octane
3) BNR Stage 3
4) About 20k
I'm running completely stock internals (as far as I know) and pulling very nice compression still (8.6-9.0). I think boost pressure capability has more to do with adequate fuel and efficient cooling. So long as you can keep the AFRs around 10.5-11.0 while under full boost w/o running out of IDC and keep intake temps below 50 C (highest) you should be fine.
10psi @ 15 AFR's under boost with 70+ C intake temps will be MUCH more likely to make your engine go pop than 20psi @ 10.5 AFR with intake temps in the 30's. Provided you have proper cooling and support modifications.
Just my $.02
2) 94 Octane
3) BNR Stage 3
4) About 20k
I'm running completely stock internals (as far as I know) and pulling very nice compression still (8.6-9.0). I think boost pressure capability has more to do with adequate fuel and efficient cooling. So long as you can keep the AFRs around 10.5-11.0 while under full boost w/o running out of IDC and keep intake temps below 50 C (highest) you should be fine.
10psi @ 15 AFR's under boost with 70+ C intake temps will be MUCH more likely to make your engine go pop than 20psi @ 10.5 AFR with intake temps in the 30's. Provided you have proper cooling and support modifications.
Just my $.02
#22
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you're the one who said "stock internals" like we have a headgasket or rods that break at a certain boost or power level.
i clicked this thread expecting to read "how much boost can a rotary run without blowing up?"
"uhhh, as much as you want as long as you keep it from detonating."
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you're the one who said "stock internals" like we have a headgasket or rods that break at a certain boost or power level.
i clicked this thread expecting to read "how much boost can a rotary run without blowing up?"
"uhhh, as much as you want as long as you keep it from detonating."
i clicked this thread expecting to read "how much boost can a rotary run without blowing up?"
"uhhh, as much as you want as long as you keep it from detonating."