Alternative Fuels

Best performance is achieved at wide open throttle not while cruising or idling. If you have a vacuum gauge I wouldn't be thinking about "best performance until the vacuum gauge got down to 4 to 6 inches at the highest, I personally wouldn't worry about it until 3 inches on the vacuum gauge. Yeah.....

0.85 lambda is approximately 13-1 why are you running so rich "in all other conditions"? You certainly do need to richen up at WOT but I wouldn't be ignoring you over rich condition at other loads. First of all, I calculated that wrong, and am running closer to .88 or 13.7:1. I thought that is wher...

SOLVED! That was certainly the issue, when vacuum was applied to the lockoff, the Model E was allowing fuel to flow. Probably something I did when I resealed it, but after swapping in my X-1 everything is running better. Now my only issue is that it's leaning out at WOT instead of enriching, runs ar...

That is great info. My VFF is about 6 inches from the reg. You say the reg should stop flow when the engine is shut off, does this mean that the regulator opens when it sees vacuum through the vapor hose? If so that explains a whole lot. The orange spring is correct for the OHG mixer. I will certain...

Also.... I was looking at my X1 the other day, and wondering how the vacuum lines are plumbed. It has 2 solenoids on it, both with 2 vacuum lines. The lockoff that is on it is plumbed to one side of one of these solenoids.

Well it's been parked for almost 3 years, would really like to figure this out now that I'm driving it again. Here is a video of what happens when I have the lockoff hooked up to the lower left vacuum port. I have the power valve plumbed to the start assist valve for some reason, but I'm assuming th...

Do you have a copy of Franz's book? If not I suggest you get it. So if the lockoff is not closing when the engine is shut down you have a problem somewhere. With the engine running pinch (so you are causing a vacuum restriction) the vacuum line to the lockoff and listen for or better yet watch on a...

It should not keep feeding fuel after the engine stops, no matter where the lockoff's vacuum source is. Strange... because it does, but only when connected to the lower port on the mixer. Even if the engine doesn't start, it will continue feeding after I stop cranking, but will not when its hooked ...

So I can only make it run and drive if I have the lockoff connected to the port to the right of the mixture screw, and it doesn't keep feeding propane to the mixer after i turn the key off, but I dont like that its hooked up wrong. I'm shooting for the best mileage I can get, and would like to be co...

I've been searching for 2 days.... and soon after I posted this I found some answers lol. Above and to the right of the idle screw is a 1/4" port which connects to the enrichment valve. This typically connects to a manifold vacuum source (a PCV valve is a common location). Below and to the left of t...

I thought this would be an easy one to find, but I'm having no luck. Turns out I've had the vacuum lines connected wrong for some time on my car. Now that I've rebuilt my model E, and installed the proper orange spring, I'm having runability problems on my 454. My OHG x450 has 3 provisions for vacuu...

gottago wrote: ↑

Mon Feb 12, 2018 1:02 pm

Its only money after this but it just might surprise you what it will do with the simple single/ single setup. Its a big block!

By single/ single you mean just 1 converter and 1 mixer? If I can get away with that for now and add later I might go that route. It's just a street car after all.

First off, I'd like to say that this forum is so great that I rarely have to post anything because I find the answers I'm looking for. So I've spent a reasonable amount of money on parts and plumbing, and I've suddenly been made aware of an issue with my turbo setup. So I would like to lay it all ou...

Oh sorry its a 454 in an 80 Malibu, so theres a little room under there, and I don't plan on running more than 10psi

So my best options would be; 2 Mixers on draw through, or 1 mixer on blow through. I think I'll stick with blow through and just build a big, low profile plenum. Problem is a 14" breather barely fits under my hood as it is, and I want to keep this all under my stock hood. Anything else I should be a...