Author Topic: Going against the grain  (Read 3503 times)

March 29, 2011, 05:32:29 pm

monomer

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Going against the grain
« on: March 29, 2011, 05:32:29 pm »
I've bought 80% of whats needed for a nice diesel build. From all the TD parts, to the g60 intake.


I think I've changed my mind. The Rabbit this was planned for if getting a stock 1.6 n/a to use as a DD.


Then it occurred to me, the 8v/16v engines share this bottom end. As a bonus, I have arp hardware for everything, and the crank is forged. Now I'm considering an 8v/16v build ontop of this engine. Parts would be a hell of a lot easier to come across, and I won't mind the cheaper powerplant.

Anyone know what this would take, which head to slap on, which piston/rod combo for the diesel stroke crank?



If I get positive posts, some TD goodies will end up on the FS section....
-1983 Rabbit LX 1.6/1.9 VNT build


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Reply #1March 29, 2011, 06:25:12 pm

BillyWillicker

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Re: Going against the grain
« Reply #1 on: March 29, 2011, 06:25:12 pm »
If you put a 16 valve head on it, you will bend the valves.  The bore is too small for that.  Use a gas lower end on a gas head, a diesel lower with a diesel head.  A 1.6 diesel crank is the same as a 1.8 gas crank.  I think what you want is an Audi bubble block 2.0l with a 1.5l diesel crank and a 16 valve head, That combo will need custom rods and pistons and would be a fairly zingy engine once wound up. 

Reply #2March 30, 2011, 07:51:14 am

R.O.R-2.0

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Re: Going against the grain
« Reply #2 on: March 30, 2011, 07:51:14 am »
just build a TD..
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 #3March 30, 2011, 08:45:05 am

RabbitJockey

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Re: Going against the grain
« Reply #3 on: March 30, 2011, 08:45:05 am »
i saw a guy build an 8v out of a 1.6td block, he used the gas intermediate shaft, but he got the bonus of oil squirters... how ever much they matter.  honestly tho if you wanna build a gas engine, just get a gas engine, they're cheap and plentiful in any flavor
01 Jetta TDI 100% stock daily
81 Rabbit:TDI-M ported head, Frank06 cam, PD intake, hybrid T3 turbo, Renault intercooler, Syl20 11mm pump, light weight fw, and yellow California Clutch clutch kit

Reply #4March 30, 2011, 08:48:00 am

R.O.R-2.0

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Re: Going against the grain
« Reply #4 on: March 30, 2011, 08:48:00 am »
i saw a guy build an 8v out of a 1.6td block, he used the gas intermediate shaft, but he got the bonus of oil squirters... how ever much they matter.  honestly tho if you wanna build a gas engine, just get a gas engine, they're cheap and plentiful in any flavor

ABA FTW!..

squirters, and its already a 2.0 plus, there cheap as hell..

only reason to use a diesel block is if you wanna run an ASS LOAD of nitrous..

diesel pistons have really tough top ring lands, they got a stainless insert.
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 #5March 30, 2011, 10:42:10 am

clarkrep

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Re: Going against the grain
« Reply #5 on: March 30, 2011, 10:42:10 am »
Quote
diesel pistons have really tough top ring lands, they got a stainless insert.

Do you have any more information on this?
'79 Rabbit Diesel L 1.5
'83 Rabbit GTI 1.6TD

Reply #6March 30, 2011, 11:08:07 am

R.O.R-2.0

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Re: Going against the grain
« Reply #6 on: March 30, 2011, 11:08:07 am »
Quote
diesel pistons have really tough top ring lands, they got a stainless insert.

Do you have any more information on this?


what about it? i didnt know you could go into much more detail..
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 #7March 30, 2011, 11:56:52 am

clarkrep

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Re: Going against the grain
« Reply #7 on: March 30, 2011, 11:56:52 am »
What type of ss or even just your source that says that they are.
Why so defensive?

'79 Rabbit Diesel L 1.5
'83 Rabbit GTI 1.6TD

Reply #8March 30, 2011, 12:22:56 pm

R.O.R-2.0

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Re: Going against the grain
« Reply #8 on: March 30, 2011, 12:22:56 pm »
What type of ss or even just your source that says that they are.
Why so defensive?



well, i looked at them with my eyes, and my eyes said that the ring lands are stainless inserts.

i left a piston out in the rain, it corroded, the ring land did not. nor is the ring land magnetic.

why does everyone think im getting defensive in every post that i write up?

i dont have a source that told me anything, i made all these observations all on my own..
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 #9March 30, 2011, 01:26:18 pm

idgtd

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Re: Going against the grain
« Reply #9 on: March 30, 2011, 01:26:18 pm »

well, i looked at them with my eyes, and my eyes said that the ring lands are stainless inserts.

i left a piston out in the rain, it corroded, the ring land did not. nor is the ring land magnetic.

why does everyone think im getting defensive in every post that i write up?

i dont have a source that told me anything, i made all these observations all on my own..

And your conclusions happen to be incorrect, as the inserts are not stainless........



Quote
diesel pistons have really tough top ring lands, they got a stainless insert.

Do you have any more information on this?


According to the 1.5 SAE paper, it's a Ni-Resist insert cast into the piston to reduce ring land wear.

http://home.comcast.net/~jakeru/15dsae.pdf
« Last Edit: March 31, 2011, 07:22:34 am by idgtd »
Stephen Phillips

1981 VW Rabbit Diesel (mit turbolader)
1985 VW Scirocco Wolfsburg Ed.
1970 Porsche 911T
1972 MG Midget
1996 Chevy C3500 Dually
1930 Model A Ford

Reply #10March 30, 2011, 03:02:44 pm

monomer

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Re: Going against the grain
« Reply #10 on: March 30, 2011, 03:02:44 pm »
just build a TD..

The proper giles pump for the setup is a bit pricey. No TD pumps here at all (just three n/a pumps)


Still up in the air about it.
-1983 Rabbit LX 1.6/1.9 VNT build


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Reply #11March 30, 2011, 03:24:27 pm

Patrick

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Re: Going against the grain
« Reply #11 on: March 30, 2011, 03:24:27 pm »
 Got a passport? I'm an hour and a half east of you..... Got a complete MF code td with a busted timing belt (two in fact). Gets you a td pump, K24, manifolds, etc..... One was a volkswagen rebuild (mileage unknown) when it broke the belt. Slap your head on and away you go. Make me an offer, I'll help you pull it when you get here.
If you really want to go gasser, I've got a 1.8 out of a '92 jetta I just pulled to diesel teh car, was running a week and a 1/2 ago, CHEEP!
« Last Edit: March 30, 2011, 03:28:13 pm by Patrick »

Reply #12March 30, 2011, 05:00:13 pm

monomer

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Re: Going against the grain
« Reply #12 on: March 30, 2011, 05:00:13 pm »
Got a passport? I'm an hour and a half east of you..... Got a complete MF code td with a busted timing belt (two in fact). Gets you a td pump, K24, manifolds, etc..... One was a volkswagen rebuild (mileage unknown) when it broke the belt. Slap your head on and away you go. Make me an offer, I'll help you pull it when you get here.
If you really want to go gasser, I've got a 1.8 out of a '92 jetta I just pulled to diesel teh car, was running a week and a 1/2 ago, CHEEP!

Pm'd
-1983 Rabbit LX 1.6/1.9 VNT build


Michigan Volkswagen Enthusiasts
www.michiganvw.org