so is the mack rack plug the best?

 

the best what?

 

best rack plug to buy. i thought thats what i heard awhile ago

 

Don't bother, it's that easy.

 

so since i have the 215 pump and my timing retards i could lets say advance the timing to about 19.5 or 20 degrees to keep my egts low under light throttle and the timing will retard to about 16 degrees under wot to stay in the safe zone without head studs??? just wondering didnt know if anyone else had thought of it before or what. trying to find a good reason to keep this 215 pump and not go buy a built one

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this was suposed to be with my last post

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Originally Posted by Smokem
Let's make this simple, using a starting point of 15° static advance;

13mm - 15°
14mm - 14.5°
15mm - 14°
16mm - 13.5°
17mm - 13°
18mm - 12.5°
19mm - 12°
20mm - 11.5°
21mm - 11°


Read more: https://www.dieselbombers.com/12-val...#ixzz0b6MfERNn

 

you could but 20* is still a good amount of timing with head bolts. Also timing is only retarded 4* at 21mm of rack travel, most run 19mm of rack on there 215 pumps for a street truck.

 

Compensating for static timing loss is only half the battle.

 

well then what is the other half smokem? trying to figure it out so when i go to do it i have no big suprises to keep me in the garage

 

The other issue can only be compensated by changing the plungers, so, like I said before, don't bother.