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Date:         Wed, 30 Jun 2010 22:47:53 -0700
Reply-To:     Jay lefstein <jleftbrane@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Jay lefstein <jleftbrane@GMAIL.COM>
Subject:      Re: Emissions, Was: AC While Camping
Comments: To: Jim Akiba <syncrolist@BOSTIG.COM>
In-Reply-To:  <AANLkTilpldeb6-sg99t1kNi6YkhRQUfbN_bdzfQhTIis@mail.gmail.com>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes

not to mention I take vans through air care here in vancouver once in a while for my work... when I brought my bostig van through the guy triple took at the results and told me he had never seen a vw van pass that well... and when I took my new syncro with a 2.1 a few weeks back it was not mentioned ( yet did pass ) yeah and what Jim said ;) On 30-Jun-10, at 10:21 PM, Jim Akiba wrote:

> Hi Mark, > > I have some data, both two stage idle and I/M 240. I will pull some > together for you. The changes to the ECU that I make don't affect > emissions very much when things are running right.. I'm not sure how > it would compare when things are not running right however, in that > case the OEM setup should theoretically have more wiggle room than our > setup, esp in NOx but this has never been tested, and the EGR setup on > the zetec never worked well in the original application either... but > it was still SULEV. I'm not touching spark, base fuel, or cold fuel > tables, nor am I changing cranking fuel, coldstart enrichment nor > coldstart enleanment(yes there are tables for both ha) or adaptive > strategies. It is either a tribute to the calibration, or a snub to > the pointlessness of the stock EGR system and massive close coupled > cat. The biggest impact on emissions we've seen so far was using a > ceramic core cat in the early v2.0... it was worse than stock, but > with the metallic core cats we've used ever since, it's been no > trouble at all, and in I/M 240 testing on a customer van in CO both > the stock OEM massive close coupled cat and our(really can-mex's) > metallic spun cat were tested and our setup blew cleaner which really > shocked me actually. I've always "understood" that OEM cats always > have more surface area, and always have more active substrate, and > therefore are always cleaner, and always worth more as scrap ha. As > far as it being cleaner than the stock boxer.. that's easy.. you have > to remember even if they were to put out identical emissions in I/M > 240 rolling road for instance(which they don't from what I've seen), > the Bostig will "smoke" the boxer in actual emissions because with the > close coupled cat, the cat light off is much much faster than the wbx > with the cat so far away. Our cat is 150-200 mm from the exhaust > valves.. the wbx you can almost measure in feet, all that time until > cat light off you're essentially gushing, and even though state tests > always have you warm it up for the test, every time you start from > cold you're going to be gushing for a bit till light off. > > Jim Akiba > > > > On Thu, Jun 10, 2010 at 12:04 PM, mark drillock <mdrillock@cox.net> > wrote: >> I would hope the newer Ford engine conversion has better emissions >> but >> have not seen any emissions test results to back that up. Since my >> waterboxers generally passed CA tests by considerable margins I would >> need actual facts to convince me that the Zetec conversion does >> better >> by default. I'm sure that the native Zetec does better, just not so >> sure >> about the conversion after the reprogramming of the ECU that goes >> along >> with it. Any test results you know of by certified testing stations >> of >> Bostig setups? >> >> Mark >> >> >> >> Jay lefstein wrote: >>> >>> I have been trying to hold back and not say anything to this thread. >>> I think a generator and AC are getting rediculous!! no wonder the >>> weather is so ****** up these days. >>> The ford engine in my van puts out less emissions then a stock >>> water boxer >>> .............. >>


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