Shelby on gas....
Discussion
Fartgalen said:
Shelby + LPG = does not compute.
Why are you even asking that ? It's like buying an Alpina, or an AMG, or a Cosworth and converting to LPG. Just. Why ?
Possibly cause he wants to drive it a lot and not let it sit in the garage being looked at, some of us actually drive our cars, I get that question all the time and it annoys me, I drive a 2009 dodge challenger SRT8 as a daily and spending £200 a week on petrol hurts no matter how rich you are, which I am not, so why not convert it and make it cost you half in fuel, you can switch it off at any point you want to run on petrol, best thing I ever did to be honest. makes driving it a lot more enjoyable when your not cringing at having to fill up every 200 miles or so with £90 of petrol and putting £45 of gas instead.Why are you even asking that ? It's like buying an Alpina, or an AMG, or a Cosworth and converting to LPG. Just. Why ?
Mopar are the least problematic engines I've seen with LPG conversions but I have still seen burnt pistons and valves on them.
Chevy and Ford tend to burn valve seats.
Personal recommendation would be to run it at least 25% of the time on petrol to get some lubrication in thetop of the engine.
Chevy and Ford tend to burn valve seats.
Personal recommendation would be to run it at least 25% of the time on petrol to get some lubrication in thetop of the engine.
Fartgalen said:
If you can afford a Shelby, of whichever generation, then surely you can afford a cheap snotter to "do the mileage" in ? If it is your only car, then it's "hat's off" from me for using them daily. I don't need to, nor would I want to.
I did try that but hated driving a normal car everyday so that's why I LPG'd it and said f
k it I'm driving it daily :-) vaughan watkins said:
Whys that Matt ?? Their reported to be no issues with it ? No need for flash lube like Chevys, so what do you know that prinz don't ?
The 372ci motor needs very, very consistent upper cylinder lubrication in order to avoid valve seat damage (valves themselves are less susceptible due to sodium cooling). Piston crowns and valve seats are what you are likely to damage. I would imagine your LPG converted SRT-8 is rendered virtually un-sellable to anyone who has any mechanical know-how with this engine (which has very little in common with it's 5.7l sibling). Matt Harper said:
The 372ci motor needs very, very consistent upper cylinder lubrication in order to avoid valve seat damage (valves themselves are less susceptible due to sodium cooling). Piston crowns and valve seats are what you are likely to damage. I would imagine your LPG converted SRT-8 is rendered virtually un-sellable to anyone who has any mechanical know-how with this engine (which has very little in common with it's 5.7l sibling).
Hmmm thanks for that positive note, I find it strange that prinz don't recognise these problems with the 6.1 ? I know they do look into it and recommend pre lube if needed bit they say it doesn't ? Well just as well I don't plan on selling it then lol I'm unsure who Prinz is - I'm guessing Prins Autogas? Did they sell/install your LPG system? If so they're hardly likely to tell you that their product could damage your cylinder heads, I'd imagine.
Not to worry though. If you're confident everything's going to be OK, then knock yourself out. Out of interest, I wonder how many LPG converted 372/392 Hemis are on the street in the UK….. one maybe?
If I was in your position, I'd go back to them and demand something in writing that guarantees their LPG conversion against damaging your motor and what their course of action is going to be if your valve seats or pistons get frazzled.
Not to worry though. If you're confident everything's going to be OK, then knock yourself out. Out of interest, I wonder how many LPG converted 372/392 Hemis are on the street in the UK….. one maybe?
If I was in your position, I'd go back to them and demand something in writing that guarantees their LPG conversion against damaging your motor and what their course of action is going to be if your valve seats or pistons get frazzled.
^^^ It will come with a twelve month guarantee from the installer.
We underwrite our own warranty on cars. New cars come with three year/36,000 mile coverage. If you fit LPG it invalidates any engine coverage.
When I worked for a Chrysler/Jeep dealer having LPG fitted would invalidate the whole vehicle manufacturer warranty.
We underwrite our own warranty on cars. New cars come with three year/36,000 mile coverage. If you fit LPG it invalidates any engine coverage.
When I worked for a Chrysler/Jeep dealer having LPG fitted would invalidate the whole vehicle manufacturer warranty.
Roo said:
If I'd known I was going to keep my Mustang as long as I have I would've LPG converted it from new.
Would have saved me a few quid over the last six years.
Meanwhile the OP has disappeared off the face of the earth.
I know The Mustang Workshop used to service a reps mustang that was on LPG, it had covered 250k miles and was still running well with no issues !Would have saved me a few quid over the last six years.
Meanwhile the OP has disappeared off the face of the earth.
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