timing on a blower motor
 

What should timing be on a blower motor? The are 540s with 420 mega blowers. Adn they have the v-6 modules in them.

Re: timing on a blower motor
 

28 to 30 deg

Re: timing on a blower motor
 

V-6 is 14 degree module, so you want to set your initial at 14 less than total. ie-16 deg initial=30 total. Probably start aroud 28-30 total and listen for any detonation. May up two or three from there.

Re: timing on a blower motor
 

A V6 module gives 14* advance on a V6 engine. It gives 8-10* advance on a V8 engine. Set total advance in the 28-30* range.

Re: timing on a blower motor
 

28 to 30 is plenty. look at the grounding bar on the spark plug. try not to let the discoloration go around the bend.

Re: timing on a blower motor
 

Thanks for the info.

Re: timing on a blower motor
 

Just advance them until they ping....and then back it off a little.



























Just kidding Bobby....Happy Birthday!!!!!!! See you this weekend. :cool: :drink: :drink: :drink: :drink:

Re: timing on a blower motor
 

On the dyno my exhaust gas temps were way too high at 28*. They made the most power at 36* but have them set at 32* in the boat.

Re: timing on a blower motor
 

You all are to conservitive on timming.I guess it depends on the gas you can get?safer.

Watching the timming curve on my 500efi Mef 3 Whipple on the dyno on the top of the pull it was 35-37.even up to 9 psi Total was set at 36 locked out.We had the same timming in it at 11.5psi on race gas.

On my Scarab motor I dynoed at Oddys racing engines we set it at 35 at 11lbs of boost on 93.

Rob :drink:

Re: timing on a blower motor
 

Craig,
Where are you staying this weekend?

Re: timing on a blower motor
 

At what RPM would you go to full timing? I'm only running 30 degrees until 4800 RPM and then 32 degrees up to 33 degrees at 5200 RPM.

I'm running 93 always so I think going up to 34 or 35 degrees shouldn't be a problem. I am running a knock sensor so I should be safe and I run an O2 sensor.