Aquamist new hi-flow system for 2007
Richard, How far away is the pwm valve placed from the injector? Closer the better I realize but how far is acceptable? I would like to try a sytem like this with one injector per cylinder. How many pwm valves would be needed to do this?
https://www.evolutionm.net/forums/sh...d.php?t=241585
This thread has some good info it on the detrimental affects of running a pump speed control sytem. The end result is rapid cylinder/engine wear. I have given much more thought to the points I raised and I believe the sole reason there is so much wear is because there is so much meth being injected when its not suppossed to be. If you run a pump at 250psi and have a nozzle 14 inches away form the pump, there is a good bit of meth that gets injected after the pump is shut off. That 250psi line pressure bleeds to zero. It is during this time I think wear all the damage is being done. When the throttle is lifted a/f ratios should immediately go to lean. But with meth injection the mixture goes very rich for 10-20 seconds depending on conditions. I think it is during this time that all the excessive washing takes place. I have been wanting to run meth like a secondary fuel sytem ever since playing with the stuff. But as we all know meth is too corrosive to do that. The sytem you have designed here is very good. It would be a huge step up from what most are running. in my opinion the extra costs are well worth it.
https://www.evolutionm.net/forums/sh...d.php?t=241585
This thread has some good info it on the detrimental affects of running a pump speed control sytem. The end result is rapid cylinder/engine wear. I have given much more thought to the points I raised and I believe the sole reason there is so much wear is because there is so much meth being injected when its not suppossed to be. If you run a pump at 250psi and have a nozzle 14 inches away form the pump, there is a good bit of meth that gets injected after the pump is shut off. That 250psi line pressure bleeds to zero. It is during this time I think wear all the damage is being done. When the throttle is lifted a/f ratios should immediately go to lean. But with meth injection the mixture goes very rich for 10-20 seconds depending on conditions. I think it is during this time that all the excessive washing takes place. I have been wanting to run meth like a secondary fuel sytem ever since playing with the stuff. But as we all know meth is too corrosive to do that. The sytem you have designed here is very good. It would be a huge step up from what most are running. in my opinion the extra costs are well worth it.
Last edited by 94AWDcoupe; Jan 17, 2007 at 03:34 PM.
Our US aquamist agent will be arranging a direct purchase session on a cross-forum basis. It will be held at the SRTforum.com very soon. The DDS3-v8 and HFS-5 will be offered with discounts based on quantity. All new products will be launched this way in the future.
Last edited by Richard L; Jan 17, 2007 at 04:14 PM.
It will take time to get it organised. I will post here again.
If anyone wants to know more about the HFS-5 system, please make some post now. It can be some thing as simple as how long is the hose, where should the HSV (high speed valve) be located etc. Or something about methanol concentration and its cooling effect compares to water only.
If anyone wants to know more about the HFS-5 system, please make some post now. It can be some thing as simple as how long is the hose, where should the HSV (high speed valve) be located etc. Or something about methanol concentration and its cooling effect compares to water only.
Last edited by Richard L; Jan 18, 2007 at 04:57 PM.
Richard, How far away is the pwm valve placed from the injector? Closer the better I realize but how far is acceptable? I would like to try a sytem like this with one injector per cylinder. How many pwm valves would be needed to do this?
https://www.evolutionm.net/forums/sh...d.php?t=241585
This thread has some good info it on the detrimental affects of running a pump speed control sytem. The end result is rapid cylinder/engine wear. I have given much more thought to the points I raised and I believe the sole reason there is so much wear is because there is so much meth being injected when its not suppossed to be. If you run a pump at 250psi and have a nozzle 14 inches away form the pump, there is a good bit of meth that gets injected after the pump is shut off. That 250psi line pressure bleeds to zero. It is during this time I think wear all the damage is being done. When the throttle is lifted a/f ratios should immediately go to lean. But with meth injection the mixture goes very rich for 10-20 seconds depending on conditions. I think it is during this time that all the excessive washing takes place. I have been wanting to run meth like a secondary fuel sytem ever since playing with the stuff. But as we all know meth is too corrosive to do that. The sytem you have designed here is very good. It would be a huge step up from what most are running. in my opinion the extra costs are well worth it.
https://www.evolutionm.net/forums/sh...d.php?t=241585
This thread has some good info it on the detrimental affects of running a pump speed control sytem. The end result is rapid cylinder/engine wear. I have given much more thought to the points I raised and I believe the sole reason there is so much wear is because there is so much meth being injected when its not suppossed to be. If you run a pump at 250psi and have a nozzle 14 inches away form the pump, there is a good bit of meth that gets injected after the pump is shut off. That 250psi line pressure bleeds to zero. It is during this time I think wear all the damage is being done. When the throttle is lifted a/f ratios should immediately go to lean. But with meth injection the mixture goes very rich for 10-20 seconds depending on conditions. I think it is during this time that all the excessive washing takes place. I have been wanting to run meth like a secondary fuel sytem ever since playing with the stuff. But as we all know meth is too corrosive to do that. The sytem you have designed here is very good. It would be a huge step up from what most are running. in my opinion the extra costs are well worth it.
If you want to go for port injection, you need to have one HSV (high speed valve). There is no point running four HSV and run them sequentially unless you are injecting the methanol at very low throttle opening. Once you are on boost, the air speed as very fast and less pulsed, single point/batch firing one HSV is fine. All you need is one 4 to 1 splitter:
As regarding pump speed type of controller, I cannot say for sure the residual alcohol will or will not cause damage. One thing is certain, the inertia of the rotating mass of the pump will never cope with the fast fuel demand transients. Every acceleration and gear change will have a enrichment lag, followed by excess methanol delivery during deceleration/throttle shutting - pump simply cannot stop instantly.
Due to the constant in balance of methanol delivery relative to engine demand, some methanol will be feed into the cylinders at the wrong ratio and cycle, resulting in some oil contamination. Over a period of several hundred engine cycles later, it can dilute the oil.
There are four pages of posts on the link, but I suspect there must be some truth in it, some posts were from experienced users.
yes, they did put six checkvalves to prevent siphoning of water between ports. It is not absolutely necessary but will improve the response time by a few tenth of second.
Last edited by Richard L; Jan 20, 2007 at 05:54 AM.
Richard
I have two questions
1) Is there a HP limit that a single HSV supports, for example; using a single HSV the flow of water & meth could only support 500WHP?
2) Do you still have the ring that locates a nozzle just before the turbo? If so how would this affect an IAT sensor located in the intercooler pipe, will the water mist damage the sensor?
I have two questions
1) Is there a HP limit that a single HSV supports, for example; using a single HSV the flow of water & meth could only support 500WHP?
2) Do you still have the ring that locates a nozzle just before the turbo? If so how would this affect an IAT sensor located in the intercooler pipe, will the water mist damage the sensor?
Last edited by kduncan01; Jan 21, 2007 at 09:23 PM.
Richard
I have two questions
1) Is there a HP limit that a single HSV supports, for example; using a single HSV the flow of water & meth could only support 500WHP?
2) Do you still have the ring that locates a nozzle just before the turbo? If so how would this affect an IAT sensor located in the intercooler pipe, will the water mist damage the sensor?
I have two questions
1) Is there a HP limit that a single HSV supports, for example; using a single HSV the flow of water & meth could only support 500WHP?
2) Do you still have the ring that locates a nozzle just before the turbo? If so how would this affect an IAT sensor located in the intercooler pipe, will the water mist damage the sensor?
1) One single HSV can support up to 1000BHP with W50:M50. As regarding 100% methanol, it will depend on what methanol/fuel ratio you want to run, at 20% W20/G80, the HSV can support up to 850BHP. The pump is capable of supporting two HSVs. For high boost, it is possible to increase the line pressure to 150psi to add another 20% capacity to the entire system.
2) We have to make the ring to order as each turbo inlet OD is different.
We have not heard of any IAT sensor failing since 1997 - I have to assume it is not a major problem.