the saga continues!

Started by sadgoth, November 03, 2008, 12:41:46 PM

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sadgoth

November 03, 2008, 12:41:46 PM
Well on Saturday I managed to blow the engine AGAIN!!!!! Felt like a tip gone, I\'ll get it back to Dorset and investigations will begin.

Hit 1.3BAR (off a 9PSI wastgate Spring!!!)

things to investigate:
a) why is the dash unit only ever showing me max boost levels of circa 10PSI? And does this mean the ECU thinks I\'m only at 10PSI and fueling accordingly?
b) Why is the wastegate open and I\'m still geeting massive boost build up?
c) Are the various pressure sensors working properly?
d) Is the boost cut set up and if so for what boost pressure?

So last time I\'d installed the boost controller wrong and the engine went pop, this time I hit a boost level which shouldn\'t have been possible and pop!

I love rotaries! :Giggle
Mark
89 Black FC3S Turbo II
1/2 Bridge port   Microtech LT10s   TII Conv Aluminium Bonnet & Leather seats   Koni Shocks Pi Springs   De-catted 3" exhaust  
GT4088 turbo   Walbro fuel pump   1000cc injectors   custom V-Mount   Blitz Boost Controller (ok so the boost controller is still to fit)

Loud? Hell yes! :D

peterwolds

#1
November 03, 2008, 12:48:55 PM
sorry to hear bad news Brett
:Typing Pete

sadgoth

#2
November 03, 2008, 01:01:11 PM
Quote from: peterwolds;550547sorry to hear bad news Brett

I take it you mean Mark? :Giggle:Giggle:Giggle
Mark
89 Black FC3S Turbo II
1/2 Bridge port   Microtech LT10s   TII Conv Aluminium Bonnet & Leather seats   Koni Shocks Pi Springs   De-catted 3" exhaust  
GT4088 turbo   Walbro fuel pump   1000cc injectors   custom V-Mount   Blitz Boost Controller (ok so the boost controller is still to fit)

Loud? Hell yes! :D

Brett

#3
November 03, 2008, 01:05:21 PM
:Giggle :Giggle :Giggle
Brap Brap Brap Brap

peterwolds

#4
November 03, 2008, 01:09:26 PM
Quote from: sadgoth;550548I take it you mean Mark? :Giggle:Giggle:Giggle

:yes lol :flamed
:Typing Pete

Prof

#5
November 03, 2008, 01:25:17 PM
It didn\'t sound too clever, but the overboost thing is a real worry :eek
"Plus this engine is probably one of the most volumetric engines going! It passes more air than a herd of cows eating vindaloo\'s" - courtesy of AtomicRex

grinder

#6
November 03, 2008, 06:43:47 PM
ha ha ha ha - love the brett/mark thing - we all know they are close :D

didnt realise you blew it again mark - really sorry to hear that :(


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TiddlesRX7

#7
November 03, 2008, 06:50:15 PM
Oh man your not having a lot of luck with it recently are you? Hope you sort the boosting issue out asap.
I don\'t need to upgrade my stock turbo to beat your ass!

Get your finger out, get it on the road and start driving it then!!! (B.Martin 25/2/12)

BlitzBoy

#8
November 03, 2008, 07:26:45 PM
what wastegate you running Mark?
"Piston Killa" 3rd Gen\'94 \'Oldone Racing Full Bridge Ported REW 13b engine with SCR seals\'. HKS T51 KAI turbo BBM mapped Motec ECU

JDS/HKS Street Class Championship Runner up 2011
Rotorstock winner 08,09
http://pistonkilla.blogspot.com/
old spec HB T51 470 @ wheels @ 1.2 BAR, 555 @ fly 10.46 @ 130 @ 1.25 Bar
new spec FB T51 482 @ wheels @ 1.15 BAR, 570 @ fly

New Project
"el fénix" RX2 by Mark & Mark

sadgoth

#9
November 03, 2008, 10:23:01 PM
turbosmart 48mm
Mark
89 Black FC3S Turbo II
1/2 Bridge port   Microtech LT10s   TII Conv Aluminium Bonnet & Leather seats   Koni Shocks Pi Springs   De-catted 3" exhaust  
GT4088 turbo   Walbro fuel pump   1000cc injectors   custom V-Mount   Blitz Boost Controller (ok so the boost controller is still to fit)

Loud? Hell yes! :D

BlitzBoy

#10
November 03, 2008, 10:28:26 PM
so no problems there, I ran that quite effectivly on my old TO4z setup
"Piston Killa" 3rd Gen\'94 \'Oldone Racing Full Bridge Ported REW 13b engine with SCR seals\'. HKS T51 KAI turbo BBM mapped Motec ECU

JDS/HKS Street Class Championship Runner up 2011
Rotorstock winner 08,09
http://pistonkilla.blogspot.com/
old spec HB T51 470 @ wheels @ 1.2 BAR, 555 @ fly 10.46 @ 130 @ 1.25 Bar
new spec FB T51 482 @ wheels @ 1.15 BAR, 570 @ fly

New Project
"el fénix" RX2 by Mark & Mark

BenLewisMav

#11
November 03, 2008, 11:56:52 PM
Damn.. can\'t believe it.
I presume you\'re using the built in MAP sensor on the Microtech itself? Might be worth connecting the vac line to the M\'tech up to a pump or compressor, then use a boost/pressure gauge in the line and, as you say, make sure the Microtech is seeing 10psi+... I don\'t think the failure rate on them is that high, but you never know til you check! Also could be picking up a dodgy vac/boost source from the UIM, I was told only to use a specific set of nipples (although I cant remember which ones now, sorry!), but of course Tim would know that..
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