Idle and rough running below 1.5K

Started by BlitzBoy, January 24, 2006, 08:14:24 PM

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BlitzBoy

January 24, 2006, 08:14:24 PM
The car boosts and runs fine past 1.5K, below that is idles rough at 500rpm, I have just changed the spark plugs but still no joy, do you think it could be the coil packs?
"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

Warthog

#1
January 24, 2006, 08:29:30 PM
When you had your engine done did you have any porting done to the exhaust ports, if so that does make it sound a bit lumpy. :3Confused
I\'M ALWAYS IN THE SH*T IT\'S JUST THE DEPTH THAT MAY VARY.

Project Evil seven.:evillaugh

RE:WORX---13b RE engine, Motec M400 Pro ECU, Os Giken 5 speed internals-Gearbox, HKS T51R KAI turbo, With 575 @ Fly, 487.9 @ Wheels @ 1.3bar 420 ftlbs, on PUMP FUEL Sheel V-Power. BUILT & TUNED BY RE:WORX. More work planned..:InLove

REW, Stock Twins, RE:WORX-- British Record, 389.2 @ Wheels -- 03/09/2005.

BlitzBoy

#2
January 24, 2006, 08:37:35 PM
yes both inlet and exhaust ports have been done, but it has been idling perfect and running well over the last 2 months , it started idling rough over the weekend.
I might get some second hand coil packs and change them to take them out of the equation
"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
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