84 GPz750 Turbo
in [UK Motorcycles]
|
Prev: Pahnd Island - Hotel?
Next: Haiti
From: Lozzo on 15 Jan 2010 05:54 Champ wrote: > Consequently, some people fitted secondary wastegates to control this. > Also, if you snipped the 'magic wire' in the loom to put the ECU into > 'race mode', it richened the mixture and you could run more boost more > safely. I thought it was just the E2 model that had the magic wire to snip. -- Lozzo Versys 650 Tourer, CBR600F-W racebike in the making, SR250 SpazzTrakka, TS250C, RD400F (somewhere) Garage clearout - Yamaha SpazzTrakka 250 for sale, email for details
From: Champ on 15 Jan 2010 06:17 On 15 Jan 2010 10:54:29 GMT, "Lozzo" <lozzo(a)lozzo.org.uk> wrote: >Champ wrote: > > >> Consequently, some people fitted secondary wastegates to control this. >> Also, if you snipped the 'magic wire' in the loom to put the ECU into >> 'race mode', it richened the mixture and you could run more boost more >> safely. >I thought it was just the E2 model that had the magic wire to snip. Nope. I can't remember (arrrggh!) the differences between the E1 and E2, but they were trivial in nature. -- Champ We declare that the splendour of the world has been enriched by a new beauty: the beauty of speed. ZX10R | Hayabusa | GPz750turbo neal at champ dot org dot uk
From: Wicked Uncle Nigel on 15 Jan 2010 07:11 Using the patented Mavis Beacon "Hunt&Peck" Technique, Timo Geusch <tnewsSPAMMENOT(a)unixconsult.co.uk> typed >Ben <ben(a)bensalesDOTME.uk> writes: > >> >> Couldn't find her. It's a slightly common name, and after 25 years I >> have no idea at all what she looks like. > >Real question is, do you want to find out? > >When I went to the 20 year school reunion in 2008, I was rather >pleasantly surprised but in some cases it was a bad case of "excuse me, >just who the hell are you?". And it's not because they suddenly looked >better... Didn't recognise them without the brown shirts, huh? -- Wicked Uncle Nigel - "He's hopeless, but he's honest" can you see the light of need shinin' in my eye?
From: Mike Buckley on 15 Jan 2010 11:53 In message <dlj0l5ljrs3to34ph32g2c1bdvd2filsob(a)4ax.com>, Champ <news(a)champ.org.uk> writes >On 15 Jan 2010 10:54:29 GMT, "Lozzo" <lozzo(a)lozzo.org.uk> wrote: > >>Champ wrote: >> >> >>> Consequently, some people fitted secondary wastegates to control this. >>> Also, if you snipped the 'magic wire' in the loom to put the ECU into >>> 'race mode', it richened the mixture and you could run more boost more >>> safely. > >>I thought it was just the E2 model that had the magic wire to snip. > >Nope. I can't remember (arrrggh!) the differences between the E1 and >E2, but they were trivial in nature. > Different throttle cable and ummmm, something else unimportant that I can't remember either. -- Mike Buckley RD350LC2 CB72
From: Kevin Gleeson on 15 Jan 2010 13:19
On 15 Jan 2010 00:12:41 GMT, "Lozzo" <lozzo(a)lozzo.org.uk> wrote: >Kevin Gleeson wrote: > >> On Thu, 14 Jan 2010 13:43:53 +0000, Champ <news(a)champ.org.uk> wrote: > >> > The factory turbos were not the handul that most backstreet >> > conversions were. The GPz is acknowledged as the best of the bunch, >> > an it's no handful at all - just huge torque [1], right in the >> > mid-range. >> >> That sounds sweet. What sort of PSI does the turbo run? > >From memory I think the GPz750 Turbo only ran at about 7 psi. >Apparently they don't start to detonate until they are above 14 psi, so >there's a large margin for error 7 PSI sounds like a good way to get midrange grunt without the thing spitting you off. Which is the description Champ gave. My cars were typically running between 20 and 30 PSI and I was thinking on a bike that would be hard to handle. |