Search found 44 matches

by mscles
Thu Oct 18, 2007 1:43 pm
Forum: Propane Forum
Topic: local laws and regulations for propane conversion...
Replies: 9
Views: 3006

local laws and regulations for propane conversion...

Would people please take the time to comment on the regulations and laws surrounding Alternative Fuel conversion in your area/state/province/country? Boundaries, barriers, inspection, certification, etc...? please include where your from if it is not listed in your profile.

thanks,

JD
by mscles
Tue Oct 16, 2007 4:08 pm
Forum: Propane Forum
Topic: LIQUID PROPANE INJECTION
Replies: 29
Views: 9725

I would say you need to contact Siemens directly and try to pry some information out of them. Anybody have any actual experience with Thiokol tanks? I see they are being sold here (US) Do they have any applications of LPI, or are they just being used for the vapor injection crowd? I saw on ebay a co...
by mscles
Thu Oct 11, 2007 1:56 pm
Forum: Propane Forum
Topic: LIQUID PROPANE INJECTION
Replies: 29
Views: 9725

which liquid injection kit are you using?
by mscles
Thu Oct 11, 2007 1:30 pm
Forum: Propane Forum
Topic: LIQUID PROPANE INJECTION
Replies: 29
Views: 9725

Is it actually freezing? I have not heard of this. I would think the inherent pressure in the rail would blow any frost or ice formation out of the way. Or are we talking about some REALLY cold environments? I have heard quite a few complaints about the injector plugging up due to deposits left by m...
by mscles
Thu Oct 11, 2007 1:25 pm
Forum: Propane Forum
Topic: Califonia requirements for DIY propane conversions...
Replies: 18
Views: 6854

So is there any wording in that broad description in regards to other manufacturers? ( I haven't read it yet) Or only those specific brand names that were listed?

JD
by mscles
Thu Oct 11, 2007 10:13 am
Forum: Propane Forum
Topic: Califonia requirements for DIY propane conversions...
Replies: 18
Views: 6854

Do these have any effect now that the current regs have been updated? Just like The EPA, all new addendum's supersede the previous ruling. I have spoken with Jae Doe a CARB and tried to confirm current on and off road systems, and the vehicle/engine class has to be certified. Granted these are for N...
by mscles
Thu Oct 11, 2007 10:02 am
Forum: Propane Forum
Topic: LIQUID PROPANE INJECTION
Replies: 29
Views: 9725

That's not a bad idea. Unfortunately, to my knowledge, all the currently available injectors are sized for port placement, unless you are trying to run a very small engine.

roughly 50 hp per cylinder on a single injector/cylinder setup maxed out
by mscles
Wed Oct 10, 2007 4:12 pm
Forum: Propane Forum
Topic: LIQUID PROPANE INJECTION
Replies: 29
Views: 9725

the returnless setup appears to be the way to go then for minimizing heat soak. Since this utilizes the same Siemens injectors, now a control strategy would need to be nailed down and a way to properly match the injector with the hp expected. I guess you could always test them on a flow bench to a c...
by mscles
Tue Oct 09, 2007 11:40 pm
Forum: Propane Forum
Topic: 392 hemi with 6-71 SC what kind of setup to use
Replies: 18
Views: 3729

So how much pressure is required from the pump to collapse the vapor in the rail, like the Roush setup? If the rail pressure can heat soak and get above 400 psi and the tank (say on a hot day) is over 100 deg F or roughly 150 psi, then there is a 250psi, or greater, amount of pressure difference to ...
by mscles
Tue Oct 09, 2007 11:27 pm
Forum: Propane Forum
Topic: LIQUID PROPANE INJECTION
Replies: 29
Views: 9725

So it sounds like both setups (return and returnless) should be attainable in an aftermarket sense. A return style may be easier since most aftermarket controllers do not monitor fuel pressure and offer no tables preset, so a physical comparison of rail to pump output pressure would be a good way to...
by mscles
Tue Oct 09, 2007 7:48 pm
Forum: Propane Forum
Topic: LIQUID PROPANE INJECTION
Replies: 29
Views: 9725

Does the 440 blower manifold have enough room to adapt an injector bung? JD The intake is factory drilled and tapped for nitrous-injection. I *think* these holes could be opened up for injectors. Or perhaps have bungs welded on first. Here's a mockup-pic of the setup where the intake is slightly vi...
by mscles
Tue Oct 09, 2007 6:47 pm
Forum: Propane Forum
Topic: 392 hemi with 6-71 SC what kind of setup to use
Replies: 18
Views: 3729

Looking through readily available fuel pumps, I can see a few that are rated to 125 psi. Does anyone have any info about an LPG compatible pump that could produce 200psi? As far as I know most LPG pumps (in tank) were not much different than regular gasoline pumps. What are Vialle and ICOM using for...
by mscles
Tue Oct 09, 2007 6:39 pm
Forum: Propane Forum
Topic: LIQUID PROPANE INJECTION
Replies: 29
Views: 9725

As this has been brought up in another thread, I will ask about it here. About regulating fuel pressure in an LPI system. An aftermarket LPI system would need to have some sort of regulated fuel pressure, as most aftermarket ECU's do not have the ability to control a feedback style pump (returnless)...
by mscles
Tue Oct 09, 2007 6:19 pm
Forum: Propane Forum
Topic: 392 hemi with 6-71 SC what kind of setup to use
Replies: 18
Views: 3729

Now I get the problem, You are concerned over the ECU's ability to regulate injector duty cycle for the given fuel pressure. Most aftermarket controllers do not have a fuel rail pressure sensor that ties in with injector cycling. They were designed around steady state gasoline injection and the abil...
by mscles
Tue Oct 09, 2007 12:43 pm
Forum: Propane Forum
Topic: 392 hemi with 6-71 SC what kind of setup to use
Replies: 18
Views: 3729

back to the original questions... Why would you need a pump that provides that much pressure? If my understanding is correct, your already providing 50 psi over TANK pressure. Whatever tank pressure is at that time. Even on a very cold day you have 175 to 200 psi regulated at the injector. This will...