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Author Topic: What would happen IF?  (Read 6207 times)

May 04, 2013, 09:27:47 pm

ORCoaster

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What would happen IF?
« on: May 04, 2013, 09:27:47 pm »
Could you put gas engine pistons in a diesel and have it run a lower compression.  Seems like the dish in the top would reduce the overall volume slightly and one could run a bit of advance or more PSI to off set that. 

Any wild Ideas out there?  Other than this one.
DAS
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Reply #1May 04, 2013, 10:40:54 pm

R.O.R-2.0

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Re: What would happen IF?
« Reply #1 on: May 04, 2013, 10:40:54 pm »
it wont work...
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92 Jetta GLI - Black, 1.6D w/ GT2056V turbo..
86 GTI - 4 Door, Med Twilight Gray, Tow Machine..
86 Audi Coupe GT - Tornado Red, All Stock.. WRECKED.
89 Toyota 4Runner - Dark Grey Metallic, LIFTED!

Turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.
Reply #2May 05, 2013, 01:10:05 am

Toby

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Re: What would happen IF?
« Reply #2 on: May 05, 2013, 01:10:05 am »
It might work if you spun the motor at 5000 rpm long enough for it to get hot enough to start. It might run crappily. They ran old JD gas tractor motors on kerosene when they got good and hot, and through a carb no less.
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Reply #3May 05, 2013, 01:22:58 am

carrizog60

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Re: What would happen IF?
« Reply #3 on: May 05, 2013, 01:22:58 am »
wont the top design  of the piston not be suited for our specific flame travel?
and they might be weak  also...
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Reply #4May 05, 2013, 02:00:50 am

745 turbogreasel

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Re: What would happen IF?
« Reply #4 on: May 05, 2013, 02:00:50 am »
If you use the gas head too, awesomeness can happen.
https://www.youtube.com/watch?v=rXPyYzt9N1E
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Reply #5May 05, 2013, 10:44:11 am

ORCoaster

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Re: What would happen IF?
« Reply #5 on: May 05, 2013, 10:44:11 am »
Questioned answered.  1000 plus hp and wind it up to 10K  all I need it a different head, gas pistons, turbo   Oh and an Audi.

Food for thought.
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Reply #6May 05, 2013, 11:22:15 am

R.O.R-2.0

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Re: What would happen IF?
« Reply #6 on: May 05, 2013, 11:22:15 am »
people used to take a diesel bottom end (complete)

put a big-valve solid lifter head on it, and spray as much nos to it as it could possibly handle!!

of course, it wont be a diesel anymore after you drop a gasser head on it..
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92 Jetta GLI - Black, 1.6D w/ GT2056V turbo..
86 GTI - 4 Door, Med Twilight Gray, Tow Machine..
86 Audi Coupe GT - Tornado Red, All Stock.. WRECKED.
89 Toyota 4Runner - Dark Grey Metallic, LIFTED!

Turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.
Reply #7May 06, 2013, 01:27:08 pm

smutts

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Re: What would happen IF?
« Reply #7 on: May 06, 2013, 01:27:08 pm »
Well, it has been done before, but who knows why! ;D

Here is a classic from a few years ago
http://www.vwdiesel.net/forum/index.php?topic=21296.0

Please read and weep! ::)
or laugh 'til you puke
« Last Edit: May 06, 2013, 01:35:08 pm by smutts »
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Reply #8May 06, 2013, 01:43:39 pm

wolf_walker

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Re: What would happen IF?
« Reply #8 on: May 06, 2013, 01:43:39 pm »
That's pretty funny..



Random bit I recall, the domestic guys using GM v8 diesel blocks to build some very stout gas motors years ago.


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Reply #9May 07, 2013, 11:23:26 am

R.O.R-2.0

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Re: What would happen IF?
« Reply #9 on: May 07, 2013, 11:23:26 am »
Quote from: wolf_walker on May 06, 2013, 01:43:39 pm
That's pretty funny..

Random bit I recall, the domestic guys using GM v8 diesel blocks to build some very stout gas motors years ago.


yup.. they used to use the 5.7 "DX" block, fitted with olds 350 heads, and an ignition system..

AFAIK, all the LATER "DX" blocks had roller cams, as well as all 6/.2/6.5 engines..
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92 Jetta GLI - Black, 1.6D w/ GT2056V turbo..
86 GTI - 4 Door, Med Twilight Gray, Tow Machine..
86 Audi Coupe GT - Tornado Red, All Stock.. WRECKED.
89 Toyota 4Runner - Dark Grey Metallic, LIFTED!

Turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.
Reply #10May 07, 2013, 12:33:37 pm

bajacalal

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Re: What would happen IF?
« Reply #10 on: May 07, 2013, 12:33:37 pm »
Not stout enough for diesel use, but apparently makes a great gas race engine... Who would have thought?
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Reply #11May 07, 2013, 01:39:20 pm

R.O.R-2.0

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Re: What would happen IF?
« Reply #11 on: May 07, 2013, 01:39:20 pm »
Quote from: bajacalal on May 07, 2013, 12:33:37 pm
Not stout enough for diesel use, but apparently makes a great gas race engine... Who would have thought?

no siht, right?
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92 Jetta GLI - Black, 1.6D w/ GT2056V turbo..
86 GTI - 4 Door, Med Twilight Gray, Tow Machine..
86 Audi Coupe GT - Tornado Red, All Stock.. WRECKED.
89 Toyota 4Runner - Dark Grey Metallic, LIFTED!

Turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.
Reply #12May 07, 2013, 01:59:34 pm

wolf_walker

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Re: What would happen IF?
« Reply #12 on: May 07, 2013, 01:59:34 pm »
I'd like to have an old GM wagon with a diesel 350, there's a number of folks that have worked out what they need to survive
apparently.  I've met just as many people that say VW and Volvo diesels constantly blow headgaskets and are junk as I have
saying the old GM auto diesels were junk, so I'm reserving judgement till I stumble across one.  Also, I'm a sucker.
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Reply #13May 07, 2013, 02:16:16 pm

R.O.R-2.0

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Re: What would happen IF?
« Reply #13 on: May 07, 2013, 02:16:16 pm »
Quote from: wolf_walker on May 07, 2013, 01:59:34 pm
I'd like to have an old GM wagon with a diesel 350, there's a number of folks that have worked out what they need to survive
apparently.  I've met just as many people that say VW and Volvo diesels constantly blow headgaskets and are junk as I have
saying the old GM auto diesels were junk, so I'm reserving judgement till I stumble across one.  Also, I'm a sucker.


im going from personal experience here, i worked on, and drove a 1983 oldsmodiesel cutlass cruiser (wagon) and it was not a bad car at all..

what kills those engines, is the lack of fuel filtration.. i installed a R12S filter on it upon getting the injection pump rebuilt.. the flex ring was going to hell, and it was leaking bad..

anyways, i got almost 25mpg with that big boat.. it didnt have ALOT of power, but it would most certainly get out of the way.. wasnt the SLOWEST car ive driven..

i had installed bosch duraterm glow plugs as well as a new timer and GP relay.. the car would start every time.. foot @ 1/4 throttle, let the glows go off, then hit the key.. it would start about as soon as the flywheel engaged the ring gear on the flywheel..

car was single owner tho, with only 87k on the clock, and had been maintained fairly well, from what i could tell..

had KYB gas-a-just shocks all the way around, and damn, that took the "boat" feel all but away..
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92 Jetta GLI - Black, 1.6D w/ GT2056V turbo..
86 GTI - 4 Door, Med Twilight Gray, Tow Machine..
86 Audi Coupe GT - Tornado Red, All Stock.. WRECKED.
89 Toyota 4Runner - Dark Grey Metallic, LIFTED!

Turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.
Reply #14May 07, 2013, 05:36:25 pm

745 turbogreasel

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Re: What would happen IF?
« Reply #14 on: May 07, 2013, 05:36:25 pm »
I miss my 9C1 Caprice, and might have to build up a diesel B body sometime.
And I'm kinda pissed my new 96 Cummins isn't any faster than the 6.2 suburban :-\
It does have overdrive, so at least it's quieter on the highway I guess.
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