Originally Posted by AAaF
(Post 4880983)
Since you already have nozzles, and are on your way to Nobels price in research, you might want to try Hydrogen Peroxide(H2O2) in approx 30% concentration. If memory serves me right, it transit into H2O+O at 4-500°C, this requires energy, lowering the temperature, and on top of that you have added an extra O in liquid form(= very dense = just about no of the normal air is displaced = more air at ignition). I'm not sure if the alloys will be able to take H2O2, as it's very reactive with some.
|
Originally Posted by madrotor
(Post 4882098)
I wouldn't really do that if I were you, peroxide produces its own heat as it decomposes in fact it tends to explode and this will add to the shock and induce wear on the engine also if the peroxide is decomposed before going into the engine the water vapor and oxygen will be very hot and thus take up a lot of space and not very much could get into the chamber at a time and the amount it heats up upon reacting with the fuel wont be as dramatic and so the power would be low.
|
Good to hear you are enjoying your setup. Must be the definition of well deserved! Would really like to join for a ride, but 17624km says no.....
|
Originally Posted by AAaF
(Post 4882304)
Good to hear you are enjoying your setup. Must be the definition of well deserved! Would really like to join for a ride, but 17624km says no.....
|
Idea? Have you thought about cooling the fuel?
cool cans are old school and not very practical for dd, but the special run or track day it has possibilities.. |
Thanks OD . The idea has been suggested before and I'm sure it has merit in certain situations.
|
|
https://cimg2.ibsrv.net/gimg/www.rx8...ed6269ce9d.jpg
Trying to figure out how these two go together .... something like this ? Maybe this will work better ? https://cimg9.ibsrv.net/gimg/www.rx8...51943046d7.jpg |
Nice carpet, is that wool or synthetic?
|
Originally Posted by JimmyBlack
(Post 4885100)
Nice carpet, is that wool or synthetic?
|
Brettus, it's fair to say you have a snail problem.
Is this the mother of all bolt-on upgrades, or are you looking at a new turbo manifold? |
Originally Posted by JimmyBlack
(Post 4885103)
Brettus, it's fair to say you have a snail problem.
Originally Posted by JimmyBlack
(Post 4885103)
Is this the mother of all bolt-on upgrades, or are you looking at a new turbo manifold?
|
Brett,
So, is the whip down for upgrades...the turbine upgrade:icon5: If so, how's it going? Curious what was the negative result of earlier swapping to the smaller AR housing. Obviously you're looking for improvements from a larger AR...what target objectives do you have in mind in terms of boost threshold, spool dynamics, top end :icon5: |
Originally Posted by jcbrx8
(Post 4886349)
Brett,
So, is the whip down for upgrades...the turbine upgrade:icon5: If so, how's it going? Curious what was the negative result of earlier swapping to the smaller AR housing. Obviously you're looking for improvements from a larger AR...what target objectives do you have in mind in terms of boost threshold, spool dynamics, top end :icon5: The dynamics of my manifold design work in mysterious ways and it took me a long time to understand it . When I tried the smaller AR the minimal effect on spoolup was offset by lower torque , so I got less power per psi at both low rpm and high rpm. With the larger AR I'm hoping for a small reduction in spoolup (14psi by 4000rpm vs current 3800) without a corresponding drop in torque. Up top I'm hoping to see the maf peak rpm go up 200-300 rpm which should give me an extra 20-30whp. All the other 'upgrades' I've done have had the effect of putting more air through the wastegate and moving the maf peak rpm down (producing the same whp but at a lower rpm) . Getting more air through the turbine SHOULD have the opposite effect . Fingers crossed. As to why that happens ..... my theory is that the path through the manifold tubes that feed the turbine is way less restrictive/turbulent than that through the wastegate , so more air through the turbine is always going to be more efficient and make more power than more through the wastegate. |
Just gunna park this here for future reference . Good info on Intercooler core design !
http://www.treadstoneperformance.com...install-84.pdf |
Originally Posted by Brettus
(Post 4882081)
Did some more w/m injection experimentation with various nozzle sizes and locations .... sadly I didn't find any extra power....
Originally Posted by strokercharged95gt
(Post 4880788)
I don't think you should really see any gains from adding methanol/water to a system (most lose power). The power comes from additional timing and boost....
But per Stroker's comment... did you experiment w/ increasing boost &/or timing while running W/M? If so, what were the results of your experimentation w/ W/M injection combined w/ increased boost &/or timing? |
I was really looking for some majic ....more power with same mass air flow . When I didn't see any I didn't try more boost or timing ...... If you believe my theory on the Renesis power 'cieling' you will understand why.
|
Except you didn’t try shoving more mass through, which is the only reason to employ that method. It’s not intended as a power enhancer in and of itself. It’s to safely allow more mass flow to achieve the power gain. Thus, your theory remains a theory.
|
Originally Posted by Brettus
(Post 4889236)
I was really looking for some majic ....more power with same mass air flow . When I didn't see any I didn't try more boost or timing ...... If you believe my theory on the Renesis power 'cieling' you will understand why.
Then your testing did not rule out power gains d/t increased timing or boost while injecting W/M for those with MAF headroom under the 400 HP level. :rolleyes: |
Originally Posted by TeamRX8
(Post 4889245)
Except you didn’t try shoving more mass through, which is the only reason to employ that method. It’s not intended as a power enhancer in and of itself. It’s to safely allow more mass flow to achieve the power gain. Thus, your theory remains a theory.
Originally Posted by TeamRX8
(Post 4889245)
Thus, your theory remains a theory.
|
Originally Posted by jcbrx8
(Post 4889247)
Then your testing did not rule out power gains d/t increased timing or boost while injecting W/M for those with MAF headroom under the 400 HP level. :rolleyes: |
Originally Posted by Brettus
(Post 4889251)
True ....but then again , I've already been down that track years ago and ended up ditching w/m . I never really trusted it on my setup. Then again what I had wasn't very sophisticated so .......
Know of anyone who has successfully run it? |
Originally Posted by jcbrx8
(Post 4889254)
I'm investigating W/M injection vs. Ethanol mixing. W/M is attractive..., the thermodynamic theory is sound, but haven't found anyone to successfully run it on a Renesis. I'm wondering if the labyrinth of long and winding passage ways in our UIM/LIMs prohibit successful application. :dunno:
Originally Posted by jcbrx8
(Post 4889254)
Know of anyone who has successfully run it?
|
Originally Posted by TeamRX8
(Post 4889245)
Thus, your theory remains a hypothesis.
If we want to be completely technical/scientific, it is not a scientific theory until it is proven and can be repeatedly tested and confirmed, until then it is just a hypothesis... :lol: No I have nothing productive to add to this conversation. |
It's actually closer to a theory by that definition RMRx . It has been repeatedly tested by quite a few people that have tried to make big power on a Renesis and failed. I would venture to say ......it's been tried more times than we all think it has. But no-one likes to admit failure so we never find out about most of them.
|
All times are GMT -5. The time now is 08:27 PM. |
© 2024 MH Sub I, LLC dba Internet Brands