Date: Mon, 16 May 2011 16:09:32 -0700
Reply-To: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Subject: Re: Tire question
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
hi..
I doubt tires alone will get a 25 % raise in gearing overall..
perhaps 15 % , but not 25 % .
you would have to go from a 26 inch outer diameter tire to a ( 26 plus 1/4th
of 26 ) 33 1/2 inch diamter tire ....which would be on the pretty extreme
end of the scale for how tall a tire you can fit to a vanagon.
if the trans is good ..
or even still installed..
I sure would not be modifying the trans gear until I had the engine in hand
that I'm going to use ..
and even then ...
it's a long road from buying a good used TDI engine and all the associated
parts needed with it, plus conversion parts, plus wiring harness work and
all that ..it's a *long* way yet to having the running engine that's going
to power your van evenutally .
I'm put my energy into the getting 'the' engine myself..
that is the 'biggest busted thing' that you don't currenty have, that you do
need.
seems silly to me to invest time and energy into trans gearing or even tires
when you're not up to a running van anyway.
one of my conversion sayings is ..
"fix the busted stuff first. " The stuff that is not working at all, that's
missing entirely etc.
lots of people pour money in to parts and conversion this-n-that's etc..
and never finish the project ..
then they sell it as a dead project van with a bunch of new parts in boxes
..
( which is helpful to the buyer, since they usually are not getting their
full price back out of the accumulated and never-used project parts ) ..
You can find non-running 'restorable' cars all day long that come with a
garage full of never-used, and never will get to use, parts.
I'm sure you get my drift.
And why worry about the trans or tires when you don't even have the engine
you are going to use ??
that's where the energy should go right now.
that alone can be a big enough trick to pull off well anyway.
scott
www.turbovans.com
----- Original Message -----
From: "Mike Miller" <mwmiller@CWNET.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Monday, May 16, 2011 3:25 PM
Subject: Re: Tire question
> Thanks
>
> Right now the hope is for a TDI. Price of the labor for conversion is the
> same, about, for either a TD or a TDI and I've had a TDI and liked it.
>
> I guess the Tire Rack would know this, and then I can calculate the
> percent
> change in rpm. The gearing change is 25% and I kind of doubt tires can
> make
> that much difference but maybe?
>
> Mike
>
>
> On 5/16/11 2:43 PM, "Scott Daniel - Turbovans" <scottdaniel@TURBOVANS.COM>
> wrote:
>
>> hi ..
>> 'which diesel' engine is a factor...
>>
>> a strong running tdi ?
>> or a conventional pre-chamber style engine ...1.9 TD at least I would
>> expect ?
>>
>> if running a conventional pre-chamber TD engine ..
>> those are 5,000 rpm engines .........and more or less like the stock
>> syncro
>> gearing.,
>>
>> on the other hand ...a tdi will have more power at lower rpm, and for
>> those
>> you want higher gearing for sure in 3rd and 4th.
>>
>> depending on how wild you want to get, some pretty large and tall 15 inch
>> tires will fit on your syncro van.
>> If the trans does not need rebuilding current..
>> the less expensive route for now is to play with 'rubber gearing'
>> improvements.
>>
>> for a stock 75 hp 1.9 TD AAZ engine ..
>> stock syncro gearing could be all right .................and it depends
>> on
>> *what use* you have in mind ..
>> from dead slow rock crawling, to mud prowess, to highway cruising..
>> that needs to be spoken to also, for people to be able to make
>> intelligent
>> comments about gearing and tire changes.
>>
>>
>> ----- Original Message -----
>> From: "Mike Miller" <mwmiller@CWNET.COM>
>> To: <vanagon@GERRY.VANAGON.COM>
>> Sent: Monday, May 16, 2011 2:13 PM
>> Subject: FW: Tire question
>>
>>
>>> Subject: Tire question
>>>
>>> Vanaroonies,
>>>
>>> I feel the list has been too quiet lately so I thought I'd bring up a
>>> tire
>>> question.
>>>
>>> Converting a van, 87 syncro, to diesel [if the money falls from heaven,
>>> that
>>> is]. The advice is to change 3rd and 4th so that the diesel operates in
>>> the
>>> right rev range on the highway.
>>>
>>> This will increase the gap between 2 and 3, which is already too large
>>> really.
>>>
>>> So I wondered how much the revs could be decreased at highway speeds
>>> [and
>>> all others] using the tallest tires? I have 15" rims and since it's a
>>> syncro
>>> and a westy I need Light truck tires.
>>>
>>> Any ideas?
>>>
>>> Mike
>>> Flame suit on
>>>
>>> ------ End of Forwarded Message
| 
