Marco's Black Beast aka 'Sooty'



  • Well not a very exciting update but they can't all be!

    I'm running about 9psi of boost now according to megasquirt. I was having alot of missfiring antagonising a skyline in 3rd and 4th gears. When full boost kicked in - about 3500rpm it would studder and splutter. AFRs were fine and spark seemed fine other than this area.

    I put in new plugs, the old looked a bit glazed. Still no difference. Recalibrated the TPS as I noticed partial throttle was smoother. Finally I decided to take off some timing. I took off 5 degrees around the missfiring section of the map. Went for a 4th gear pull and it was MUCH better :D

    So looks like I need to refine my spark maps. The extra few lbs of boost over my dyno tuned level seems to have pushed the ignition into detonation territory. Even with crudely whacking 5 degrees off the car pulls like a train :D



  • sooo jel!

    cant really say more than that bud, epic work!



  • 9psi must be nice tho lol!, lucky the mad scientist has the skills!, as people like me would have to send it back in for re tuning :( . Cant wait for vids. Surely it will be nice to get a nice garrett in there soon. :D



  • so… you are toying with skylines and i got absolutely stuffed by a focus ST yesterday pmsl. mind you he only pulled me in after 1xx mph so the little 1.8 didnt do too badly against a ford turbo ;)



  • lol yea I reckon I'd take it all day now the missfires sorted. It was tit for tat with the missfire!

    It turns out what may be a fix for the problem is not necessarily the solution. My missfire came back last night, nothing had changed. So early this morning I borrowed the HT leads from my red mx3 and put them on sooty. Went for a run and my oh my smooth as you like. I then pulled over and loaded up the old spark map, still smooth :D So back to aggressive timing, 9psi and smooth pulling. Damn it's pretty fast now :lol:

    I also raised the car up a bit on one side, it was lower on the passenger side despite the same number of rotations on the coilovers. I also rolled up the other arch whilst I was at it. Now cornering at speed with no rubbing, ahhh feels good :)

    Yea garfy I'd love a garrett, or ideally a precision, just can't blow that amount at the moment! Maybe when my rust bucket is parted out.




  • Yeehaw. Shite launch but still! Can't wait to get decent Tyres!



  • Whoa, thats quick! How does it handle that much power to the front wheels?



  • Hells yeah. get some road slicks on there and thatll be serious speed. whats it like through the corners???



  • Under 5.5 thats what im after, well done, im sure you could do better though :wink:



  • damn right! I thought the launch sucked and still got that. I'd like less than 5 with some decent tyres.

    Handling is great with the xyzs and lsd… but it is more than useable power for 1st and 2nd with the current tyres. 3rd gear is the first one you can relax a bit about traction at WOT.



  • You should bring it down to Japfest on the 11th!



  • I've a course that weekend :( There's always something!!! Next event will hopefully be straightliners in enniskillen on the 18th sept.



  • Might take a spin up to that if I can get a bit of a crowd going.



  • @c975fe1be7:

    I won’t talk much about the convoy as you all know what they consist of, although I will say the journey was made sweeter with the addition of a TVR Sagaris and a quite unusual Mazda MX3 V6 Turbo!



    :D

    http://www.freshfix.net/events/rms-10-year-birthday-bash.html



  • Fuck yeah!.. Seeing the BB at speed makes me want another one now..



  • Excellent bit of notoriety 8) Looks beastly too :)



  • everything about your car screams beast lol!, except the wonky number plate lol !, ive got a small motorbike one on front, dont know if its legal but it looks the shizzle !!.



  • That second hi-speed pic does look the shizzle 8)



  • Kind of difference have you noticed with the coil pack?



  • Also a t28 turbo from a Nissan 200sx is pretty good and cheap for a garret a s15 turbo is the same but is ball bearing instead. Just had a look at some old comments


 

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