Exup adjustment site

exupturbo · Post by **exupturbo** » Sat Jun 04, 2005 5:28 pm

<a href="http://www.cartestsoftware.com/fz1/exup ...  Mark

Post by **FZRDude** » Sat Jun 04, 2005 5:32 pm

Finally it works, Mark. Everytime I clicked on it I got that "Hacked Error" message that we've been getting for the last couple of days. <img src=http://img.photobucket.com/albums/v209/ ... odpost.gif ALT=":goodpost"> <img src="http://img.photobucket.com/albums/v209/ ...  There are some who call me........Tim? Top Speed = Mach 0.197 or so...  1994 FZR 1000 <img src="http://img.photobucket.com/albums/v209/ ...

exupturbo · Post by **exupturbo** » Sun Jun 05, 2005 1:30 am

I don't know what happened to my last post, I just got a white screen full of error messages but it works now <img src=http://www.ezboard.com/images/emoticons/smokin.gif ALT=":smokin"> Mark

djalbin · Post by **djalbin** » Sun Jun 12, 2005 11:16 pm

Mark, Good article ... <img src=http://img.photobucket.com/albums/v209/ ... odpost.gif ALT=":goodpost"> Don

FFP · Post by **FFP** » Tue Jun 14, 2005 12:21 pm

he Mark, how is your exup turbo doing?? i'v been working on a conversion myself and have a few questions was that your bike on the williamson (burgerman) dyno (dynopower)? 210 whp it says i was wondering about the strength of the standard pistons and rods i was thinking about the exhaust manifold problem and saw this picture: <a href="http://www.turbo-bike.com/images/cbr900 ...  turbo-99 web/Resize-of-IMG_1646.jpg nice and high and looks like it would flow OK any information about the fzr would be appreciated thanks, (another)Mark from Holland

exupturbo · Post by **exupturbo** » Tue Jun 14, 2005 4:09 pm

My conversion is getting there slowly <img src=http://www.ezboard.com/images/emoticons/embarassed.gif ALT=":o"> Last dyno run was here <a href="http://www.totaltraction.co.uk/dynomete ...  and it made 195bhp and 100 lblsft at the rear wheel but suffered from overfueling at low revs. <img src="http://img.photobucket.com/albums/0703/ ... dyno_2.jpg" style="border:0;"/> The carbs turned out to be impossible to tune for a turbo application even with the pitot tube mod that is meant to cure all kinds of problems. Megasquirt is the only affordable option for most of us tuning a 16 year old bike http://bgsoflex.com/megasquirt.html I'm running stock rods with Wiesco 1040 pistons and a 2mm decomp plate under the barrels. Slamedf150 is a LOT further ahead with the megasquirt than me and is a good source of advice. He is using GTS1000 throttle bodies and I'm using GSXR750 suzuki ones with Jag V8 injectors. There are only two bought bends in my manifold, all the rest are made from angled cuts welded and ground as I went. This takes forever and wil send you a bit mad! <img src="http://img.photobucket.com/albums/0703/ ... CT0045.jpg" style="border:0;"/> The oil filter will need moving to give space for the turbo and the only place for the intercooler is under the tank. I will try to answer any questions you have, so ask away <img src=http://img.photobucket.com/albums/v209/ ... lcome3.gif ALT=":welcome"> Mark

FFP · Post by **FFP** » Thu Jun 16, 2005 1:41 am

he, thanks for the answer, what turbo did you use?? 195 rwhp, running about 8/10 psi i presume (how) did you retard the ignition?? carbs are difficult to tune?? tried everything i guess there are several R1's and gixxers with cv carbs working OK the afr line looks ok from 7000 up how much did you run the bike, technical reliability strength of gearbox etc. do you think it Will hold for a few miles intercooler under tank is also used om rsr zzr1100 turbo measured any temperatures of intercooler?? i'v also seen the megasquirt and a friend has it on his car works OK but also has his limitations. it measures inlet vacuum and boost and the spikey boost characteristics of a motorcycle would be difficult i think thanks, Marc from Holland

exupturbo · Post by **exupturbo** » Thu Jun 16, 2005 1:44 pm

Turbo is IHI RHB52 with a bigger exhaust housing and compressor wheel. I'm not 100% sure of the boost level as the dyno operator was keeping a close eye on AFR and it is next to impossible to watch the boost guage on the road but I'm guessing around 10psi from the occasional look I get. Ignition is stock but with dyna coils- no retard. Carbs drove me insane ! I tried every combination of needle type, needle height, main jet size, stock slides, modified slides, stage 3 jet kit, no stage three jet kit, float height, with and without a pitot tube. The Exup carbs just seem VERY sensitive to any signal applied to the float bowl and as soon as you hook the bowls up to the boost line the fueling goes to crap at low revs. The dyno run does not show just how badly my bike was running off boost, it spluttered and missfired like crazy on a hot day making it a pain to ride and also meaning the boost did not come in untill higher up the rev range, on a cold winters day when the rich fueling had less of an effect I got boost fromm 4000 rpm. I've been running the bike turbocharged for 3 years and the only failure was the head gasket through detonation, this was my fault because the turbo was overboosting due because of a too small exhaust housing and the fact that I had no decompression plate, with the Wiesco 1040 kit I measured the compression at 13:1 <img src=http://www.ezboard.com/images/emoticons/embarassed.gif ALT=":o"> now it is around 10:1 It is fitted with a billet cluch basket for relibility. 6 speed gearbox has proved very strong. I should soon have some intercooler temps as megasquirt needs an air temp sensor which is now fitted. I fitted a restrictor jet from a Suzuki GSXR 750 in the boost line to prevent spikes to the map sensor as well as a small fuel filter to act as a cushion. Megasquirt may have it's limitations but is light years ahead of grubby old carbs and can be adjusted without taking the whole damn thing apart and now has a 12x12 VE table giving more map points. Mark

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