logo
12 Port News - Features
12 Port History
Casting Numbers
Online Store
Tech Tips
Become a Member
Previous Thread
Next Thread
Print Thread
Rate Thread
#95301 03/03/19 01:04 PM
Joined: Sep 2017
Posts: 209
Likes: 2
M
mick53 Offline OP
Contributor
OP Offline
Contributor
M
Joined: Sep 2017
Posts: 209
Likes: 2
Is it feasible to have a duel fuel system on my blown 292? I was thinking of being able to drive to the strip, put a party pulley on and switch over to race gas. Any thought would be appreciated. Thank you for your time. Crank fired ignition, 3 Roch 2bbl, 4-71 blower, dry sump.

Last edited by mick53; 03/03/19 01:08 PM.
mick53 #95302 03/03/19 01:24 PM
Joined: Jan 2005
Posts: 2,123
Likes: 3
P
1000 Post Club
**
Offline
1000 Post Club
**
P
Joined: Jan 2005
Posts: 2,123
Likes: 3
Are you going to re-jet and advance the spark for the race gas? Otherwise no power advantage, just more anti-knock.

mick53 #95307 03/04/19 01:22 AM
Joined: Sep 2017
Posts: 209
Likes: 2
M
mick53 Offline OP
Contributor
OP Offline
Contributor
M
Joined: Sep 2017
Posts: 209
Likes: 2
I think the timing could be done on the ignition computer? I don't know much about this. I'm not building the engine. I just thought with race gas I could increase the boost safer. I know just enough to come up with ideas that may be dumb. This is how I learn. Thank you.

mick53 #95308 03/04/19 10:06 AM
Joined: Jan 2005
Posts: 2,123
Likes: 3
P
1000 Post Club
**
Offline
1000 Post Club
**
P
Joined: Jan 2005
Posts: 2,123
Likes: 3
Yes, if it has that capacity.

panic #95309 03/04/19 01:02 PM
Joined: Sep 2017
Posts: 209
Likes: 2
M
mick53 Offline OP
Contributor
OP Offline
Contributor
M
Joined: Sep 2017
Posts: 209
Likes: 2
Originally Posted By: panic
Yes, if it has that capacity.

Thank you, I will talk to Gaerte.

mick53 #95310 03/04/19 03:20 PM
Joined: Jan 2005
Posts: 2,123
Likes: 3
P
1000 Post Club
**
Offline
1000 Post Club
**
P
Joined: Jan 2005
Posts: 2,123
Likes: 3
I should have been more clear: more boost (pulley change) will make more power but the gas quality does not contain any more energy per liter.

mick53 #95311 03/05/19 01:01 AM
Joined: Sep 2017
Posts: 209
Likes: 2
M
mick53 Offline OP
Contributor
OP Offline
Contributor
M
Joined: Sep 2017
Posts: 209
Likes: 2
I'm just trying to avoid detonation with more boost by having higher octane.

mick53 #95314 03/05/19 10:52 AM
Joined: Jan 2005
Posts: 2,123
Likes: 3
P
1000 Post Club
**
Offline
1000 Post Club
**
P
Joined: Jan 2005
Posts: 2,123
Likes: 3
Should work, just a lot of extra plumbing.

panic #95316 03/05/19 02:42 PM
Joined: Sep 2017
Posts: 209
Likes: 2
M
mick53 Offline OP
Contributor
OP Offline
Contributor
M
Joined: Sep 2017
Posts: 209
Likes: 2
Originally Posted By: panic
Should work, just a lot of extra plumbing.

Thank you.

mick53 #95317 03/05/19 02:50 PM
Joined: Jan 2005
Posts: 2,123
Likes: 3
P
1000 Post Club
**
Offline
1000 Post Club
**
P
Joined: Jan 2005
Posts: 2,123
Likes: 3
Race gas has another advantage over use of E85, methanol etc. which would produce even more power: you don't have to purge & flush the system to avoid corrosion.
If your lines, pressure regulator, fuel block, electric external pump, etc. are large enough you might be able to use them for both fuels by inserting a selector valve between the suction lines from the tanks (I'll defer to those who have actually done this).

mick53 #95319 03/05/19 04:31 PM
Joined: Sep 2017
Posts: 209
Likes: 2
M
mick53 Offline OP
Contributor
OP Offline
Contributor
M
Joined: Sep 2017
Posts: 209
Likes: 2
Kinda like the duel tank setup on my work truck? I was thinking of making a fuel cell with a chambered small compartment for race fuel.

mick53 #95329 03/09/19 09:51 PM
Joined: Dec 2018
Posts: 518
Likes: 18
Major Contributor
***
Offline
Major Contributor
***
Joined: Dec 2018
Posts: 518
Likes: 18
Originally Posted By: mick53
Kinda like the duel tank setup on my work truck? I was thinking of making a fuel cell with a chambered small compartment for race fuel.

I think this would work fine, and function pretty much as a dual tank truck systems does.

I have 2 tanks on my flatbed and it works good, just takes a second or two to switch over.

I've never investigated what is needed to run 2 tanks, but think they both need to have a fuel pump in them as most fuel pumps are mounted inside the tank these days.

I've pondered if this would give me some extra fuel in my 'ol '46, as it seems limited to have one large tank, so it might be possible to add 2 smaller ones. I have been planning to use the original style tank under the seat, and a second in/under the bed. Currently the original tank is there but not being used.

As for separating petrol from high octane fuel, I think it would work well for that. cool


TT
Keroppi - 1946 Chevy 1/2 Ton Pickup

Moderated by  stock49, Twisted6, will6er 

Link Copied to Clipboard
Who's Online Now
0 members (), 125 guests, and 27 robots.
Key: Admin, Global Mod, Mod
Newest Members
Hairyclive, THarper, crash, ocean1907, Jabez House
6,816 Registered Users
Sponsored Advertisement
Sponsored Advertisement
This Space is Available
Powered by UBB.threads™ PHP Forum Software 7.7.5