Matt's Megajolt guide
Started by
The Matt
, Jun 20 2007 08:53 PM
261 replies to this topic
#226
Posted 02 March 2009 - 10:28 PM
1380 engine fully rebuilt including gearbox, cam timed in.
Also Megajolt system fully installed from scratch including home modified bottom pulley.
Fired up first time on Sunday on the base map. SWEET. Did a full lap of the garage hopping like a kangaroo in celebration.
Just got to load up one of the maps I have acquired, and a bit of fine tuning.
Thank you for the help and inspiration, Matt in particular but there are plenty of others who helped.
Also Megajolt system fully installed from scratch including home modified bottom pulley.
Fired up first time on Sunday on the base map. SWEET. Did a full lap of the garage hopping like a kangaroo in celebration.
Just got to load up one of the maps I have acquired, and a bit of fine tuning.
Thank you for the help and inspiration, Matt in particular but there are plenty of others who helped.
#228
Posted 27 May 2009 - 12:05 PM
Yep, that'd work fine. But surely your current distributor has a vacuum advance pipe from the carb? Can't you just use that?
#229
Posted 27 May 2009 - 12:20 PM
Oh yeah, didn't think about that! Problem solved
#230
Posted 16 June 2009 - 10:36 PM
didnt think you could use those take offs due to the throttle plate position giving a false reading on decelleration
#231
Posted 17 June 2009 - 08:08 AM
Anybody else used the dizzy take off succesfully?
#232
Posted 17 June 2009 - 02:31 PM
Im sure its the same reason you cant get a good reading off a vacuum Gauge using the Carb take off. However the Dizzy takes its advance curve off the carb take off, so this would be usefull to know!
#233
Posted 17 June 2009 - 02:47 PM
why not get a mg metro alloy inlet? it has a vac takeoff for a vac guage or similar on the top, opposite the servo takeoff, well at least mine does
#234
Posted 17 June 2009 - 03:55 PM
liirge is right - I read it on one of their forums. Basically gives a false reading at idle and part throttle apparently.
#235
Posted 17 June 2009 - 04:04 PM
The vac advance pipe is situated so it gets masked by the throttle disc at idle, less advance will mean less risk of stalling. This isn't ideal for MJ, but not a huge issue as you can adjust the ignition map - it just means you might have to set the first rpm value a bit lower.
The problem with the MG Metty manifold tapping is that it's off centre so more prone to pulsing from the nearest two cylinders.
The alloy carb spacers with a built in pipe (Minispares) look like the best option
The problem with the MG Metty manifold tapping is that it's off centre so more prone to pulsing from the nearest two cylinders.
The alloy carb spacers with a built in pipe (Minispares) look like the best option
#236
Posted 17 June 2009 - 06:30 PM
I had to go for the carb spacers for my twin carbs, seem to work fine I'm also running the pipe through a fuel filter.
I've also got a vacuum gauge connected on the same pipe which seems to be pretty inaccurate. Am I running too much off the pipe?
I've also got a vacuum gauge connected on the same pipe which seems to be pretty inaccurate. Am I running too much off the pipe?
#237
Posted 17 June 2009 - 08:42 PM
This the spacer?
http://minispares.co.....20ADAPTOR 1.5
Pooky you got you Vacuum Guage before or after the fuel filter?
http://minispares.co.....20ADAPTOR 1.5
Pooky you got you Vacuum Guage before or after the fuel filter?
#238
Posted 28 June 2009 - 11:15 AM
What would be the best MegaJolt for the Eaton 45 supercharger set up? The TPS or MAP set up?
Cheers
Cheers
#239
Posted 28 June 2009 - 12:23 PM
Map if your using the HIF44 carb the tps stands for throttle position sensor so you need to attach this to the carb somewhere which would be difficult.
bit ot dan but how did you get your sc kit so cheap? is this the normal price for them? as im loking at them at mo.
bit ot dan but how did you get your sc kit so cheap? is this the normal price for them? as im loking at them at mo.
#240
Posted 28 June 2009 - 12:24 PM
MAP is always the better option, TPS is only useful on systems with multiple separate intakes where getting a clean, average, MAP signal is difficult.
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