Date: Fri, 16 Jul 2004 22:59:11 -0300 From: Dexter J <lamealameadingdongnospamlamelame.org> Subject: Re: 320ft/lbs of torque?
Salutations: On Sat, 17 Jul 2004 02:46:54 +0200, Henrik B. <saabnospamPAM_tdcadsl.dk> wrote: > > "Doki" <dokinospamtroNspidar.com> skrev i en meddelelse > news:2lr8sdFfq7u4U1nospamberlin.de... > >> 343ci is 5.5 litres. To get that much torque out of 2 litres or so you'd > be >> running silly amounts of boost IMO. But I know naff all about turbos so > I'm >> sure someone who knows what figures to use will come along in a minute >> and >> correct me. FWIW, SAAB get 258 lbft out of their 2.3 engine nowadays. > > It's no problems to get that out of the 2.3-liter engine. I'm doing a > mild > upgrade of my '93 9000 2.3. And I'll get 300 lbft. > > Cheers! I was reading just that regarding the AERO wagon - which is why I can't help but think that extra 70ft/pds isn't too tall an order if I intend to pull apart my '89 2.0 liter motor and rebuild anyway.. I am going to have to do the engine and final drive on the motor home as part of her re-hab and current fashion with my GMC 260 crowd is to go big (and I mean BIG) block crate motors (like 590 cubic inch Caddie motors) and re-gear the differential to 321 ratios for big time performance (big block GM engines get into an good power band around 2800-3000 rpm). Now - I'm not all that interested in huge performance gains in my motor home as I intend to shed about 2,000 pounds in weight and frankly - I cruise happily all day long at 70mph on a stock 403 (6.6 liter) engine currently making 185hpnospam RPM and 320ft/lbs torque with the extra weight and stock 255 ratio. That's plenty fast for me given everything I love is sitting around the back with juice and lego when we're on the road. Where the saab motor gets very interesting is on two fronts. One - you aren't all that interested in huge acceleration in a motor home, however you are very interested in mileage.. My 403 makes 13 miles to the gallon at 60mph cruising (although you can get into the 8 miles to the gallon range fast booting around town). Two - as I am looking at re-gearing the differential anyway (it's a TH425 front wheel drive out of the elderado/toronado) - I can pretty much pick any cruising RPM I want up to about 3800 rpm (after that the transmission starts to heat up more than is desirable). My investigations thus far have it that the 89 steel long block 2.0 liter engine is fairly easy to stroke up to 2.3 and it seems to be a generally stronger block than the later castings. Moreover - given I have an amazing amount of frontal area to cool everything down - I should be able to deal with the excessive heat running the turbo and engine in that RPM range will generate - with the upside that I can shave another 1,100 pds of big block cast iron off the coach weight AND get into the 20 miles to the gallon range on it. Getting it to mate to the TH425 looks pretty easy - it's not entirely unlike the old 900 automatic tranny set-up (save that TH425 uses pretty much the same internals as the TH400 used in the Rolls Royce through the 60's).. Sooo - the question remains - anyone have any links on high torque builds and custom engine management programming talent for the 2.0 16 valve block? -- J Dexter - webmaster - http://www.dexterdyne.org/ all tunes - no cookies no subscription no weather no ads no news no phone in - RealAudio 8+ Required - all the Time Radio Free Dexterdyne Top Tune o'be-do-da-day Louis Prima - Angelina Zooma Zooma Zooma Live http://www.dexterdyne.org/888/159.RAM
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