msd pro billet dist question

Dave-R · Post by **Dave-R** » Thu Jun 04, 09 9:00 am

Brutus wrote:4 bushings , the largest gives an 18* curve ,

I found it was 19 degrees in mine.

Mick · Post by **Mick** » Thu Jun 04, 09 9:57 pm

22 initial seems a lot, i would of thought 18 to 20 would be more than enough.

Dave-R · Post by **Dave-R** » Thu Jun 04, 09 10:47 pm

I am finding 18 just enough. It seems to like 19 better but I am still playing with it.

Anonymous · Post by **Anonymous** » Fri Jun 05, 09 12:21 am

Mick wrote:22 initial seems a lot, i would of thought 18 to 20 would be more than enough.

Motors with long durations & tight LSAs will normally require a longer burn time @ idle , some motors run locked out timing , spark lead @ idle is not set in stone , the 605" loves 40* initial/35* total.

Mick · Post by **Mick** » Fri Jun 05, 09 12:36 am

What are your cam specs Adam.

Anonymous · Post by **Anonymous** » Fri Jun 05, 09 12:44 am

Mick wrote:What are your cam specs Adam.

270*/282* @ 0.050 , 0.700 lift , 114 LSA.

Cam has been speced for nitrous , probably the reason it runs Bananarama! off the bottle.

Pete · Post by **Pete** » Fri Jun 05, 09 8:01 am

I was running 34 degrees initial (locked out).
Motor loved it - maximum rpm at idle at that setting.

Mick · Post by **Mick** » Fri Jun 05, 09 5:28 pm

Pete
I'm thinking of going the same route as you, as my cam has more dur than Adam's.
Do you need the starter saver.
Mick

Dave-R · Post by **Dave-R** » Fri Jun 05, 09 5:43 pm

More duration @ 50thou than Adams?

What kind of power are you expecting to make Mick?

Pete · Post by **Pete** » Fri Jun 05, 09 6:57 pm

Absolutely you need the starter saver, but you need to phase the distributor arm correctly or it will kick back if you take too much out.

Anonymous · Post by **Anonymous** » Fri Jun 05, 09 7:22 pm

Mick , if you don't want too use a starter saver then fit a switch , crank the motor & hit the switch , no kick back issues.

Switch will interupt the feed to MSD/ballast.

Pete · Post by **Pete** » Fri Jun 05, 09 7:28 pm

I ran both a retard and a switch. Worked well, until the car went on its roof............

Mick · Post by **Mick** » Fri Jun 05, 09 8:06 pm

Dave
The motor came with the cam and i know it's too big, when i took it to York the other week, with the 4.56 gear it was going through the lights at 7000 rpm and it was still pulling.
Mick