Aquamist HFS-5 system design concept explained...
01-31-07 | 04:41 PM
#28
Cant be bothered anymore
Joined: Aug 2004
Posts: 465
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From: Norwich UK
I'm sure it will all work out ok. There are not many that are as extreme as a 3 rotor with a big thirst .
The general rule of thumb is
2 x 850cc
2 x 1600cc
howeva big power cars sometimes have upto 4x 1600cc secondaries. making
2 x 850 cc
4x 1600 cc
Im told that 3 rotors are the thirstiest thing on the plant. To circuit race a methanol 3 rotor would cost the same as buying a small county LOL
Scott
p.s i think Ross from Dragon UK runs 8 x 850cc in his 9.1 sec drag fd rx7 to give some idea
The general rule of thumb is
2 x 850cc
2 x 1600cc
howeva big power cars sometimes have upto 4x 1600cc secondaries. making
2 x 850 cc
4x 1600 cc
Im told that 3 rotors are the thirstiest thing on the plant. To circuit race a methanol 3 rotor would cost the same as buying a small county LOL
Scott
p.s i think Ross from Dragon UK runs 8 x 850cc in his 9.1 sec drag fd rx7 to give some idea
02-02-07 | 04:26 PM
#29
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From: uk
Originally Posted by big_rizzlah
any clarification on the flow meters range and the scalability of the summer?
I know you're busy, and i don't want to bother you, but at the same time, if i need to order more flow meters, HSVs, nozzels, etc, I'd like to do so all at once. I'd really like to leave myself room to eventually do what Howard is doing, which will require a sizable system.
your help is greatly appreciated.
thanks
ryan
I know you're busy, and i don't want to bother you, but at the same time, if i need to order more flow meters, HSVs, nozzels, etc, I'd like to do so all at once. I'd really like to leave myself room to eventually do what Howard is doing, which will require a sizable system.
your help is greatly appreciated.
thanks
ryan
I didn bother replaceing the old water before the test and to my annoyance, I keep getting different results due to clogged filters. Eventually I have to re-start the whole test - after putting in fresh DI water and new filters. What a waste of time - I have learnt never to do this again. Due to the exrta cleaning work i have to do, only have time to one test above. Also noted the calibrating adjustment has more adjustment to go. May be going to the office this weekend to see how much more range the sensor can cope.
Ryan, you can relax.
02-02-07 | 04:33 PM
#31
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From: uk
Originally Posted by Pimp Hand
Now you understand Richard why we are so easily out striping the flow capabilities of AQ’s race pump even with a booster pump.
I personally run a moderately large turbo with 850x2 cc/min & 1680x2 cc/min injectors, with a base pressure of 40 psi. I do TRY to keep the IDC under 80%, though I am getting to the point where I need to consider alternate (larger) primaries or adding injectors.
Make no mistake: to make the kind of HP we are, with a 1.3L engine requires profound amounts of fuel and air. IE a single 255L/hr pump will make around 420rwhp. Before you run out of flow, and start dropping pressure.(no A.I.)
When you approach the 500-600 mark, requires a serious fuel system. Personally I run a single 255L/hr pump to each fuel rail. With -6 lines to each rail.
I personally run a moderately large turbo with 850x2 cc/min & 1680x2 cc/min injectors, with a base pressure of 40 psi. I do TRY to keep the IDC under 80%, though I am getting to the point where I need to consider alternate (larger) primaries or adding injectors.
Make no mistake: to make the kind of HP we are, with a 1.3L engine requires profound amounts of fuel and air. IE a single 255L/hr pump will make around 420rwhp. Before you run out of flow, and start dropping pressure.(no A.I.)
When you approach the 500-600 mark, requires a serious fuel system. Personally I run a single 255L/hr pump to each fuel rail. With -6 lines to each rail.
Are you saying the rotary engine needs more fuel and air to produce the same power as the a 4-stroke engne and the same afr? ie higher specific fuel consumption than the 4-stroke?
02-02-07 | 04:47 PM
#33
Heres a link showing some equations relating to air flow and rotaries. It will get ya up to speed.
(thanks Sean)
https://www.rx7club.com/spec-tuning-154/how-size-matters-478915/
(thanks Sean)
https://www.rx7club.com/spec-tuning-154/how-size-matters-478915/
02-02-07 | 04:49 PM
#34
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From: uk
The sensor tested was for the DDS3.
I am sure the older sensor has he same range of adjustment but flow will be slightly resrticted. We have enlarged the flow channel on the new sensor on the DDS3 a bit to reduce pressure drop.
Do you have a DDS2 flow sensor?
I am sure the older sensor has he same range of adjustment but flow will be slightly resrticted. We have enlarged the flow channel on the new sensor on the DDS3 a bit to reduce pressure drop.
Do you have a DDS2 flow sensor?
02-02-07 | 04:52 PM
#35
Yeah I use the DDs2 on my set up. I have mine scaled to show full flow at 320cc/m right now. But when it gets warm again I am going to need to scale it up to +-600cc/m or more. ( im using 100% water so I dont need quite as much flow as the meth guys)
02-02-07 | 04:54 PM
#36
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Joined: Sep 2006
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From: uk
Originally Posted by Pimp Hand
Heres a link showing some equations relating to air flow and rotaries. It will get ya up to speed.
(thanks Sean)
https://www.rx7club.com/showthread.php?t=478915
(thanks Sean)
https://www.rx7club.com/showthread.php?t=478915
Thanks for the link. I'd better get educated first.
02-02-07 | 05:15 PM
#37
Thank you very much for your support in answering these questions Richard. I look forward to using your products. . .you have instilled a great deal of confidence in it in that you don't just spit out answers you are unsure of and that you actually are willing to find out what the real deal is. . .this type of frankness and helpfulness is infinitely appreciated.
ryan
ryan
02-16-07 | 10:39 AM
#39
fart on a friends head!!!
Joined: Mar 2002
Posts: 4,104
Likes: 1
From: sheppard AFB, TX
Originally Posted by Juiceh
Wow, why the hell wasn't this in the Group Buy section? I didn't find this thread until just now! Damn! I would have bought 2 setups. 
02-16-07 | 10:58 AM
#40
www.silverbulletrx7.com
Joined: Feb 2001
Posts: 940
Likes: 1
From: Gaithersburg, Md
Originally Posted by rotorbrain
yeah, same here. . . i dont even know HOW to buy this kit. . . but then again, i want to run meth, and it looks like they need to revise a few things in order for it to work properly on a rotary.
dis1
02-16-07 | 11:11 AM
#41
Junior Member
Joined: Feb 2007
Posts: 31
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From: Smoking a fat one
Originally Posted by rotorbrain
yeah, same here. . . i dont even know HOW to buy this kit. . . but then again, i want to run meth, and it looks like they need to revise a few things in order for it to work properly on a rotary.
As far as i know the pump and every thing is 100% compatable with meth. And the summer is in the final stages of testing. I dont see any reason you couldent run meth with this system.
02-16-07 | 11:17 AM
#42
it's my understanding that this is meth compatible 100%, or so it has been advertised. i intend to find out. luckily, i frequent this sub-forum, so i got in on the group buy.
SMOKIN deal
SMOKIN deal
02-16-07 | 12:43 PM
#43
fart on a friends head!!!
Joined: Mar 2002
Posts: 4,104
Likes: 1
From: sheppard AFB, TX
i know its 100% meth compatible. . . but i thought it was only compatible with piston engines due to the heavier volume our engines need when it comes to methanol injection. am i wrong on this?
02-16-07 | 12:47 PM
#44
not completely wrong. . .
if you want to use meth as an additive, rather than replacement, this kit will work just fine.
if you want to use meth as a fuel replacement, as BDC and Howard do, it still CAN work, it just depends how much fuel you want to remove.
if you want to use more than 1000cc/min, you'll need more than just one high speed valve (and possibly an additional flowmeter), and i believe with the right nozzle selection, that would take you up near a 2000cc/min capability.
i'm in no way an authority on the matter, but that is my understanding
ryan
if you want to use meth as an additive, rather than replacement, this kit will work just fine.
if you want to use meth as a fuel replacement, as BDC and Howard do, it still CAN work, it just depends how much fuel you want to remove.
if you want to use more than 1000cc/min, you'll need more than just one high speed valve (and possibly an additional flowmeter), and i believe with the right nozzle selection, that would take you up near a 2000cc/min capability.
i'm in no way an authority on the matter, but that is my understanding
ryan
02-16-07 | 01:01 PM
#45
Junior Member
Joined: Feb 2007
Posts: 31
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From: Smoking a fat one
Originally Posted by rotorbrain
i know its 100% meth compatible. . . but i thought it was only compatible with piston engines due to the heavier volume our engines need when it comes to methanol injection. am i wrong on this?
The surflow pump in this kit is more than enough flow.
This kit was designed with higher flow in mind. As I understand it.
Its the older "race pump" thats limited in its flow.
This pump (with a booster pump) maxes out it around +- 600cc/m (not enough flow for meth on a rotary)
The pump (with out a booster) does some where around 300cc/m
Last edited by PimpyHand; 02-16-07 at 01:20 PM.
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