NA 1.8 Supercharged (Flat Spot)

DaveG · Postby **DaveG** » Thu Jun 10, 2010 9:18 pm

Hi Guys I'm in the middle of searching for an MX5 and I've found a supercharged one which drives really well, problem is it just dies as it comes off idle, the only way to keep it going is up the revs and slide the clutch even then it's a real balancing act and difficult in traffic. I cant consider buying it unless the problem can be sorted.
Dave

broady · Postby **broady** » Thu Jun 10, 2010 9:20 pm

May just be a dodgy tune?

DaveG · Postby **DaveG** » Thu Jun 10, 2010 10:55 pm

It certainly was punchy once it got past the flat spot, power was strong and smooth, infact the owner had raced it at Decca Shepparton the day before i drove it.

StanTheMan · Postby **StanTheMan** » Fri Jun 11, 2010 8:05 am

do you know what ecu he's running or if he's running a piggy back?

most likely what broady said.
flat spot just above idle is a pain in the butt in traffic and potentially dangerous. I had a few near misses when I had that. But eventually I managed to tune it out.

WASP · Postby **WASP** » Fri Jun 11, 2010 8:45 am

More info, Jackson,Rotrex,intercooled

93_Clubman · Postby **93_Clubman** » Sat Jun 12, 2010 4:06 pm

sounds like it might be this one - not that the ad currently sheds much light on engine management:
http://www.carsales.com.au/all-cars/pri ... ed&trecs=2

StanTheMan · Postby **StanTheMan** » Sat Jun 12, 2010 4:54 pm

looks like he's bought a different one

93_Clubman · Postby **93_Clubman** » Sun Jun 13, 2010 12:27 pm

yeah i noticed stan - more for wasp & other's benefit. btw, while it's a '93 with a 1.8, i reckon it started life as an 1.6, so i wonder whether they got all the 1.6=>1.8 conversion issues sorted first.