MBE wont fire my LS

[brummiewedge]

We have spent the last 2 afternoons trying to fire my LS into life,using an MBE ECU which has supposedly been configured to suit, firing order seems right, fuel pressure 56-58 psi, spoke to SBD about this they have given us a 20 degree base map setup to at least start somewhere, but just chug chug chug bang! Any ideas external from the ECU on a Cerbera, in fact any ideas atall?

[eliot]

would carb cleaner down the plenum work to isolate fuel or ignition problem?

[boosted ls1]

What pick up and trigger are you using? If standard trigger wheel and sensor then it won't work. Is it the set up that worked before or has anything changed? Guess you've switched to the tiff ecu? Are you using a cam sensor?

Boosted.

Edited by boosted ls1 on Saturday 24th March 12:37

[tinker-27]

pluged a emerald ecu in and she runs!!

[boosted ls1]

tinker-27 said:

pluged a emerald ecu in and she runs!!

I always expected a problem with the mbe, lol.

Boosted.

[brummiewedge]

Yes, you can say i told you so!

[boosted ls1]

brummiewedge said:

Yes, you can say i told you so!

Go on then, I really must Still, must be great to have it running!

Boosted.

[CaptiV8ed]

At the risk of sucking eggs... Is the MBE box set to internal or external amplification? This was one thing I had to make sure of when I MBE'd my Westfield. Depends on the coil pack you're using.

Nick

[brummiewedge]

In all fairness, it was set to internal amplification we then swapped to external, then it still didnt fire, we found 3 drivers down, but the one that was working was 1&6 driver which gave us a strobe light reading

[CaptiV8ed]

If only 1&6 was working, is the ECU knackered? SBD (where I got mine from) were very keen to stress that if this setting was incorrect, you'd cook your ECU.

[tinker-27]

we did check and they said this would not have blown the ecu,they say they wiil repair the ecu as it should have ran the car.its going to be fitted to a 16v vaxhaull so lets hope better luck this time !!

[jellison]

Not that I think it is this, but is high 50's pis on the fuel enough - thought LS's needs alot more - you are not still running the TVR one are you?

Mine ran onthe RV8 much lower pressure one but was alot better when we go a much higher pressure bosch one.

[boosted ls1]

Jon, Lsx's like about 55 psi as standard.

Boosted.

[brummiewedge]

Its on 56psi and running like a dream on best guess map, thanks to Craig, if it goes any better when its been properly mapped, i will be well chuffed. It doesnt clank rattle or roll, the guys at TVR power saw the install today when i got a couple of bits and were very impressed!

[jellison]

cool - getting my wires crossed then - It IS al ong time now since we did mine................

Other things have my attension now. One for Boosted.



Running it in as of yesterday (come see it race at Mallory on the 22nd) - father cruising the Tough Streets of Swindon in the Chim....

Edited by jellison on Wednesday 4th April 09:50

[boosted ls1]

Very nice Jon, remind me to get my shell into the workshop! I may be getting an itch

Boosted.

[jellison]

Baiting a 911 last night - but was fristrating being limited to 4k for next few days - but you can feel it REALLy want to go at those revs.

Gearbox is amazing Close ration and valving on the OD is instant - 7 gears as well......... www.thoroughbredsportscars.com