Search found 1493 matches

by Steptoe
Sun Jan 06, 2019 3:31 pm
Forum: Propane Forum
Topic: Adding an elec. fuelpump to an Impco vaporizer+425 setup
Replies: 32
Views: 584

Re: Adding an elec. fuelpump to an Impco vaporizer+425 setup

Couple comments on posts above Leaning out.. On my basically std , built for LPG 350, on data logger.. real time and recorded, it would start to lean out around 4500, 4800 was getting to be of concern, then as happens in real life on road.. ie passing a long cattle truck (approx 45 mph) and trailer ...
by Steptoe
Sun Dec 30, 2018 3:31 am
Forum: Propane Forum
Topic: Holidays
Replies: 11
Views: 395

Re: Holidays

If looking at NZ.. or tazzy.. stay a good 100 mile above the 40th parallel (roaring 40s in sailing ship days) Auckland we have had the last to hottest summer on record...ave.. getting up around 32 deg C on the odd day. Winter miss the frosts..and planting out veggie gardens 6 weekend earlier than 7 ...
by Steptoe
Mon Dec 24, 2018 6:18 pm
Forum: Propane Forum
Topic: Holidays
Replies: 11
Views: 395

Re: Holidays

And a good morning her Christmas day Children with husband and wives, trailing in all 6 grandchildren, in for a Christmas BBQ breakfast (mid summer here) They they all go their separate ways for lunches and Dinners with the rest of their families. And this afternoon have a follow of friends dropping...
by Steptoe
Wed Dec 19, 2018 4:00 pm
Forum: Messages
Topic: SSL certificate for this site?
Replies: 20
Views: 1567

Re: SSL certificate for this site?

Something weird in the user avatar selection settings
Cant change anything.
Even putting in the current url comes up with invalid.
Change to https comes up with cant establish size

I have pc in posts avatars etc linked to my server in a lot of places with no issues..
by Steptoe
Wed Dec 19, 2018 2:28 pm
Forum: Messages
Topic: SSL certificate for this site?
Replies: 20
Views: 1567

Re: SSL certificate for this site?

phpbb should still have the setting available to upload avatars and disable off site.
The trick here is to set the avatar dimensions to usable size.
ie 95 x 80 and 25kb

Same thing applies to posting pics.

Settings are in the php admin panel
by Steptoe
Mon Dec 17, 2018 2:23 pm
Forum: Messages
Topic: SSL certificate for this site?
Replies: 20
Views: 1567

Re: SSL certificate for this site?

Site is rate static now..gone fishing rather than breeding.
Its just used for info and will be eventually taking it down , so not worrying about certs etc.
by Steptoe
Wed Dec 12, 2018 1:41 am
Forum: Propane Forum
Topic: UPDATE!! Adjusting timing propane engine and impco 425 mixers
Replies: 35
Views: 851

Re: Adjusting timing propane engine and impco 425 mixers

If it just points downwards.. does not need top be actually pointed down all the way. Just enough , so the wax cant accumulate. I put near on 200,000 miles near vertical and had a little build up in the cnr at the bottom.. not enough to effect anything. If built up, clean out with kerosene and a pai...
by Steptoe
Tue Dec 11, 2018 2:09 pm
Forum: Propane Forum
Topic: UPDATE!! Adjusting timing propane engine and impco 425 mixers
Replies: 35
Views: 851

Re: Adjusting timing propane engine and impco 425 mixers

I use an inovate, older model.

The vapour hose go to the bottoms as LPG is not clean.. has oils/wax and such in it.
With hose at the bottom, these flow thru and drop out.. at the top or side collect very quickly inbehind the diapham.
by Steptoe
Fri Dec 07, 2018 2:41 pm
Forum: Propane Forum
Topic: UPDATE!! Adjusting timing propane engine and impco 425 mixers
Replies: 35
Views: 851

Re: Adjusting timing propane engine and impco 425 mixers

I have put the softesd mech springs in already is that a good id. Be careful doing that, you may find that at lidle the spring is not strong enough to hold the advance weight in This results in it moving out, advancing the timing/ that increases rpms, Since you are running on the idle circuit only,...
by Steptoe
Tue Dec 04, 2018 4:26 pm
Forum: Propane Forum
Topic: UPDATE!! Adjusting timing propane engine and impco 425 mixers
Replies: 35
Views: 851

Re: Adjusting timing propane engine and impco 425 mixers

Make good use of the forum search function.. detailed how toos on changing weights.. fixing weight to establish a curve on paper, filling off/ reshaping weight tails to limit advance.. making stops for weights and VA s etc
and lot of other stuff.
by Steptoe
Mon Dec 03, 2018 2:42 pm
Forum: Propane Forum
Topic: UPDATE!! Adjusting timing propane engine and impco 425 mixers
Replies: 35
Views: 851

Re: Adjusting timing propane engine and impco 425 mixers

At any given rpm and load combo there is approx +/- 1.5 deg tolerance for best performance.. racing even less. To do that you will need data logger and at least knock sensor 02 sensor, preferably IMAP sensor. I have spent many decades dialing engines, old school thru to modern data logger/ sensor te...
by Steptoe
Thu Dec 28, 2017 5:42 pm
Forum: Messages
Topic: Forum Logo
Replies: 10
Views: 4189

Re: Forum Logo

Like it
not only that
and colour/ designs match the subject, something many over look.
10 out of 10
by Steptoe
Wed Nov 15, 2017 3:38 pm
Forum: Propane Forum
Topic: mounting a IMPCO relocation arm
Replies: 4
Views: 630

Re: mounting a IMPCO relocation arm

Did you use the mounting holes that are on these adapters for extra support? A must.. a scrape bit 4mmx 15mm bar, bent and couple holes drilled each end.. one end mounts on a convenient point on the mixer extension.. mounting point or section joining nut/ bolt, down to a convenient exhaust, or powe...
by Steptoe
Wed Aug 30, 2017 4:06 pm
Forum: Propane Forum
Topic: Max 32° mech. adv. for low cr engine: confirmed
Replies: 11
Views: 1350

Re: Max 32° mech. adv. for low cr engine: confirmed

Fun thing to notice was, that it liked timing to be pulled back from 32° to 30°, from 3000 to 4000rpm This is where the cam starts to work.. higher rpms and the overlap/ duration and cylinder pressure tend to increase a few lbs at this point. The dyno has AFR and knock readings etc? Dyno guys tend ...
by Steptoe
Sun Jun 18, 2017 7:33 pm
Forum: Propane Forum
Topic: AFR numbers on dual fuel setup/300A tuning tip?
Replies: 42
Views: 3916

Re: AFR numbers on dual fuel setup/300A tuning tip?

I have been messing with LPG, classic, vintage compressions, re designing old engines, compressions , custom cam designes to run on modern fuels since the early 70s. All I can say it I get damn good results.... for the last 30 odd yrs, and with technology and data loggers etc becoming affordable in ...