Twin turbo - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

AndrewsXR8 · 06-26-2003, 02:13

I've noticed a few of you guys have twin turbo windsors, I'm thinking of doing this for my next project (my XY wagon goes in for roadworthy next tues). Can anyone recommend a good manifold for a turbo setup on a windsor? running straight gas, so pollution not a problem.

ebxr8240 · 06-26-2003, 04:19

Mine was custom made. A single T67 would be less hassle..
Getting started photo's..
http://au.photos.yahoo.com/kiwi_reign

AndrewsXR8 · 06-26-2003, 04:43

wouldn't running a single mean more complicated exhuast mods? I was thinking turbo each side, into a gas research twin throttle body T shaped adapter that bolts onto a 4 barrel manifold.

damage181 · 06-26-2003, 05:17

Quote:

Originally Posted by AndrewsXR8

wouldn't running a single mean more complicated exhuast mods? I was thinking turbo each side, into a gas research twin throttle body T shaped adapter that bolts onto a 4 barrel manifold.

I am guessing you are going to plum the turbo compressor outlet direct to the GRA mixers, instead of going to a intercooler? If you are don't do it, the air temp will be to high and LPG hates heat, the LPG's high octane properties will be lost due to heat.

Unlike USA LPG which is straight propane, here in Aus we use crap butane/propane mix which is never consistant, the butane is crap with a lower RON than unleaded petrol. So you don't have that magic told 105RON that we are normally told about.

I think ebxr8240 is saying a single is easier because of an intercooler etc pluming and oil fittings. Only pluming downfall is one exhaust bank traveling all the way over to the other side.

If you wanted a shorter intake pluming setup with a twin turbo is to use a water to air intercooler, which is normally dearer and more weight (but awesome for drag racing etc as you use a tank to hold iced water etc)

damage181 · 06-26-2003, 05:24

Have a look at this, I love the bottom one on this webpage, but it is over $3000 US

http://www.vortechsuperchargers.com/aftercoolers/

AndrewsXR8 · 06-26-2003, 05:40

Thanks for the info on the gas, that was my plan. The aftercoolers on that page are basically a remote intercooler? am i right? sort of like how an air conditioning system works?

damage181 · 06-26-2003, 06:09

Quote:

Originally Posted by AndrewsXR8

Thanks for the info on the gas, that was my plan. The aftercoolers on that page are basically a remote intercooler? am i right? sort of like how an air conditioning system works?

Yep, they are just water intercoolers, there is a little electric water pump and a radiator used in the front of the engine radiator, that cools the water medium then cools the intake air, the bonus is if you a drag racing or going in a dyno comp, you fill a reservoir tank with ice and stop the water flowing to the radiator, as the air cooling it will be higher temp than the ice water, other wise it becomes a heater of the water. Big horsepower gains then!

(Aircon uses a gas, which is a much more complex system)

I wish I was rich and could afford one of these!

Igloo Mondo Cooler Racing Package
Innovative modular design for use with the most popular Ford 5.0L EFI Lower manifold types including the Ford 5.0 truck, SVO 5.0 or 5.8 GT-40 and TFS-R (also available is a universal model to fit custom applications). Unmatched race proven performance for today's supercharged or turbocharged racing engines. This premium air/water system allows ice-chilled water to drastically reduce the charge air temperature entering the engine. It features a triple-core double pass internal layout for superior cooling along with minimal pressure drop, resulting in substantial increases in usable horsepower and torque. This system is capable of flowing in excess of 2,500 CFM for applications producing 1,700+ HP. Patent Pending.

AndrewsXR8 · 06-26-2003, 06:20

Yeah, it would be nice to have an unlimited budget. but we've gotta make do with what we've got i guess. any idea on what the RON of aussie gas actually is? I was hoping to avoid any problems with the EPA by going straight gas, so i would hate to rebuild the engine only to find that my compressions to high to run gas with even a half decent amount of boost.

damage181 · 06-26-2003, 06:49

Quote:

Originally Posted by AndrewsXR8

Yeah, it would be nice to have an unlimited budget. but we've gotta make do with what we've got i guess. any idea on what the RON of aussie gas actually is? I was hoping to avoid any problems with the EPA by going straight gas, so i would hate to rebuild the engine only to find that my compressions to high to run gas with even a half decent amount of boost.

It would be all over the place depending on butane mixture rates.
Like all fuels we should be told MON not RON as that gives us a better idea how good it is.
Hey don't think I am putting down LPG, just look at my avatar, just I won't hide problems with things like others might! I am pissed with the mix we Aussies get. Anyway it will most likely have a higher octane than PULP if you keep the intake temp down, unlike petrol, gas goes into the intake as a dry fuel, petrol goes in as a wet fuel, it becomes the gas in the combustion camber, that change absorbs latent heat (similar to how the gas in an air conditioner system works), gas goes in dry so this never happens, also a wetting of the intake walls with petrol cools the intake charge. Sorry for my poor explanation.

Keep the intake temps down and you should out perform PULP petrol that is not using any additives as this will allow higher boost.

Not to mention you will be using a fuel that is better for the environment, increased engine life and cheaper.

Damn hard to kill yourself with LPG if running your car in a shed, as it produces very little carbon monoxide and far less carbon dioxide.

http://www.gas-injection.com/index.htm , check this site out, they have some interesting results.

I reckon I could make one of those intercooler intakes if I had better pics or the design. ( :s6: Well I reckon my mate could and I help! :s5)

AndrewsXR8 · 06-27-2003, 01:58

yeah, they don't look too complicated. I'm a sheetmetal worker, so making up the box and all the plumbing wouldn't be a problem. electric water-pump, big transcooler...not too hard at all.