Search found 346 matches

by jono
Thu Sep 13, 2018 10:07 pm
Forum: Propane Forum
Topic: the bigger the better IMPCO
Replies: 0
Views: 81

the bigger the better IMPCO

defying what I learnt over the years, read in Impco training manuals, sizing charts etc, seeing same in practice by others to back up learning - I installed a 200 CA and L on my 1800cc ( what's that , 110.5 cubic inches? ) that revs out to 6500 pretty willingly. This time, I got a great running comb...
by jono
Mon Sep 03, 2018 5:40 am
Forum: Propane Forum
Topic: air valve flow ratings hand printed
Replies: 0
Views: 77

air valve flow ratings hand printed

Is there a good reference to understand the mixer air valve hand printed flow ratings? On my collection of 200 series I have what looks like 90 to 94 on feedback FB ( not facebook !!) air valves, yet to see or be able to read values on clean air diaphragms to be able to recall a figure. Today I open...
by jono
Mon Sep 03, 2018 5:27 am
Forum: Messages
Topic: Access Problems?
Replies: 3
Views: 91

Access Problems?

Has anyone else experienced forum access problems regarding username and passwords?

I only seem to be able to use a powerful servers terminal rather than my mobile devices
by jono
Wed Aug 29, 2018 5:52 am
Forum: Propane Forum
Topic: Vapour solenoid ..know this one?
Replies: 4
Views: 183

Re: Vapour solenoid ..know this one?

Thanks C3.
The orange bit is just a packaging cap
I will investigate with IMPCO thanks
by jono
Mon Aug 13, 2018 5:50 am
Forum: Propane Forum
Topic: Vapour solenoid ..know this one?
Replies: 4
Views: 183

Vapour solenoid ..know this one?

This post will go pear shaped if I can't post the intended photo, so please forgive me if it fails. Wondering if anyone recognises it for starters. It is to be used on a lean bias logic enrichment set up. Wondering if I can bypass original supplier. Also curious if it has a preferred operating direc...
by jono
Mon Aug 13, 2018 5:28 am
Forum: Propane Forum
Topic: Convert from SU / CD Stromberg to Impco recommendations.
Replies: 5
Views: 174

Re: Convert from SU / CD Stromberg to Impco recommendations.

Hello Storm and others, I have seen a 1967 HR GMH ute on propane and it retained the triple Strombergs or SU's that were on it I only got a quick look at it once, at night 20 years ago so memory is vague I think it was set up on the old basis of just supplying vapour via a hose to all three carbs an...
by jono
Mon Aug 13, 2018 5:27 am
Forum: Propane Forum
Topic: Convert from SU / CD Stromberg to Impco recommendations.
Replies: 5
Views: 174

Re: Convert from SU / CD Stromberg to Impco recommendations.

Hello Storm and others, I have seen a 1967 HR GMH ute on propane and it retained the triple Strombergs or SU's that were on it I only got a quick look at it once, at night 20 years ago so memory is vague I think it was set up on the old basis of just supplying vapour via a hose to all three carbs an...
by jono
Thu Apr 26, 2018 3:12 am
Forum: Propane Forum
Topic: what 2 bbl throttle body fits this adaptor??
Replies: 0
Views: 149

what 2 bbl throttle body fits this adaptor??

Here is a link to a century fuel products carb adaptor that I think was to suit Mitsubishi https://centuryfuelproducts.com/c-aa3-67a I have no idea what model to chase up for the 2 barrel throttle bodies I really need dual or at least mechanical secondary linkage that can be rigged If anyone has any...
by jono
Sun Dec 10, 2017 11:23 pm
Forum: Propane Forum
Topic: Impco J - no secondary test port :(
Replies: 0
Views: 319

Impco J - no secondary test port :(

Anyone notice the J and its clones do not have a test port for the secondary chamber? With such thin walls there really is no meat to add a 27 tip 1/8" taper hole and tap either Maybe a larger rivnut/ nutsert inside out might do the trick? If not possible it rules out using the J with Peel Instrumen...
by jono
Sat Dec 09, 2017 8:06 pm
Forum: Propane Forum
Topic: IMPCO 100 too lean idle circuit and load
Replies: 10
Views: 1683

Re: IMPCO 100 too lean idle circuit and load

On my na 1800 cc flat four revs to 6500 have tried lots of combos of converters and mixers and still get some lean flat spots, back off until mix Richens to about 17:1 and she takes off again Running an L converter with a 200 was most fun, intake roar fantastic Run the 200 off the Cobra J did not ge...
by jono
Sat Dec 09, 2017 7:55 pm
Forum: Propane Forum
Topic: Goodness me !!
Replies: 4
Views: 449

Re: Goodness me !!

Pretty sure I have replaced, no I have only recently replaced internal level unit for tank sender and was clean as a whistle inside. It has also had a ten year inspection internally and new safety valve. Sticks to magnet is black not rusty brown. Thought it was wear n tear on fuel suppliers transfer...
by jono
Sat Dec 09, 2017 3:57 am
Forum: Propane Forum
Topic: Goodness me !!
Replies: 4
Views: 449

Goodness me !!

OK. I have not changed this filter since it was new nine years and 120,000 km ago. I have never found more than a pinch of crud in them ever in nearly thirty years. Only found this stuff when I shook the lock off as I rekitted my Impco J That dark fur ball in front of the element is the small magnet!!
by jono
Fri Dec 01, 2017 3:42 am
Forum: Propane Forum
Topic: IMPCO 100 too lean idle circuit and load
Replies: 10
Views: 1683

Re: IMPCO 100 too lean idle circuit and load

yeah, here we go. This is my post from some time ago when I ran a 100 mixer and got results above. Now, more recently I tried the 100 on similar engine, same capacity just better breathing and could hardly start or run it, so I upped it to the 200 off the L converter and even though mixtures are gre...
by jono
Fri Nov 17, 2017 10:24 pm
Forum: Propane Forum
Topic: Twin mixers off one converter?
Replies: 9
Views: 621

Re: Twin mixers off one converter?

Hmmm.....maybe two 100 HP rated J or Cobra converters to feed the perfectly sized in air CFM 200 mixer? Thinking my lean bogs could be dealt with by the Peel Instruments CP401 nicely. I must apologise if my tinkering confuses people as I am playing with a non turbo version of engine partly in prep f...
by jono
Thu Nov 16, 2017 2:07 am
Forum: Propane Forum
Topic: Twin mixers off one converter?
Replies: 9
Views: 621

Re: Twin mixers off one converter?

Thanks for explaining stuff C3 I have also run 100 and 125 off an L converter but this time whatever was up don't know. The 200 resolved everything at that point. I am mucking about in prep for turbo application. With turbo in mind, 1800 cc boosted to 12 psi and rev to 6500 its cfm comes almost exac...