Brettus turbo 111 (the ultimate Renesis turbo ?)
#2026
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Gotcha. Forgot you renesis guys use some voodoo to make those things run....
#2030
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Lol... I doubt that you would ever have an issue.
It's not like there isn't a lot of bypassed fuel with most return setups. I have chucked 5 gal of E85 into 1/2 tank and ran the fuel pump to see how long it takes to normalize the readings. It is minutes...
Can't think of a scenario that you would have an issue
#2033
FWIW, JASMA is not a brand. JASMA is the acronym for the Japan Automotive Sports Muffler Association. The stamp that you see on many Japanese made exhausts is simply an acknowledgment that the piece meets JASMA requirements.
#2035
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#2036
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Everything has pros and cons, but you at least need a basic understanding of them to avoid problems.
#2037
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I really don't think there is a wrong answer here. If I change my ethanol content significantly, it usually takes about 5 minutes max of driving before all the fuel homogenizes. I have seen in my logs that under WOT where the ethanol content has a weird fluctuation (usually no more than 5%) which I attribute to the return line getting less flow than normal (which does seem to affect the sensor reading). In my case this change does not seem to make a real big difference in air/fuel readings so I have no need to make any changes.
Last edited by strokercharged95gt; 09-24-2019 at 01:29 PM.
#2038
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There’s no wrong answer, but what I posted previously has nothing to do with what the E content is. In order to get a consistent output reading there has to be sufficient flow going through the flex sensor. If there isn’t the readings can get a lot more erratic than what you saw and put your engine in a potentially fatal running condition if your pcm doesn’t have a strategy for addressing it.
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Last edited by TeamRX8; 09-24-2019 at 09:00 PM.
#2039
Meh ....... Better off without it judging by that . From what I've gathered over the last few years .....so long as you have a decent amount of ethanol in there ...... you still get good knock protection . I actually go from 30% down to 10% regularly when on a trip and there is no E85 pumps. I lower boost down to 10psi on E10 and it just runs richer under boost on same tune .
#2040
https://www.rx8club.com/series-i-maj...-build-270295/
Mine spools faster and equals or betters the power at the boost level quoted.
Last edited by Brettus; 10-22-2019 at 03:38 AM.
#2043
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No, there haven’t been that many builds. Technically he only has 4 port engine too since the AUX are non-functional, not that it really affects what we’re discussing. More are coming. Let’s see what happens when someone puts as much time as you have in yours and turns it up with full E85.
but to be honest I never was able to back it up with my own results, that is the truth.
but to be honest I never was able to back it up with my own results, that is the truth.
#2044
You have a point .... maybe I jumped the gun a little . It's just that I always thought the low mount would have an insurmountable advantage over a top mount due to the much lower volume . I think it'll have to be a 7670 to beat what I have for spoolup but yeah ................. give it some more time.
#2045
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Well understand it’s not like he contacted me and we designed it out together. Which we don’t even have all the facts on what he has much other than some general text description. I like Elliott and think he’s done some good work with the FD3, but I tried discussing the Renesis app with him and he can’t get past common rotary theory any more than most other people. You at least tried a lot of unconventional ways to address things and learned a lot the hard way. We disagreed on some of that, we disagree on some of what you have now, but I also disagree with some of what I do know about that particular turbo setup he has too. I’m encouraged by his initial effort, but I didn’t endorse it in any way. He’s not really turning it up so to speak; only 12-13 psig actual boost he said and he even claimed that hitting 16 psig at 4200 rpm once was a “mistake”.
I get that a Renesis won’t duplicate an REW, but they now make over 30 psig boost by low 3xxx or less rpm on this turbo with full E85. So IMO there definitely is something more to be had than we’ve so far on a Renesis using this turbo.
I get that a Renesis won’t duplicate an REW, but they now make over 30 psig boost by low 3xxx or less rpm on this turbo with full E85. So IMO there definitely is something more to be had than we’ve so far on a Renesis using this turbo.
#2046
Brettus what conditions are u quoteing 14psi by 4000 rpm? Id like to do an apples to apples road comparison say 1 to 1 gear ratio( 4th for u 5th for me) From 3000 rpm?
Also i live at 4000ft so my turbo does need to work a bit harder for the psi
Also i live at 4000ft so my turbo does need to work a bit harder for the psi
#2049
My very first setup ,with ported engine, actually spooled better than the current one . I've managed to lose a bit by trying for higher peak.
Lost 100rpm going to gtx3582 compressor , lost 100rpm by not quite porting current engine enough, lost 150rpm going to 1.06 vs 1.01.
Last edited by Brettus; 09-28-2019 at 01:34 PM.