Percent increase, 380cc vs 800cc

[RacerXJ220]

I'm confusing myself, I need to know in percentage how much larger 800cc injectors are to 380cc injectors.

I just want to make sure it's right before I plug the number in.

My guess was 110%? Just making sure I did it right.

Thanks all!

Jeff

 

[Neil]

lol wrong math

 

[spipedong]

I believe it's ~210.5% larger.

380*2.105 = about 800 (799.9) but I suck at math.

 

[MKIIINA]

I believe it's ~210.5% larger.

380*2.105 = about 800 (799.9) but I suck at math.

thats what i got too so unless we are both off.... its close

 

[RacerXJ220]

Not sure if the method is right.

The software came with a fuel map for 380cc's, so I increased it by another 110%. Not sure if that's the right way to go about it or not... I appreciate the input.

 

[jmanbball]

Your right with that. Its an increase of ~110%, cause 380+ 380*1.1=798cc, which is close enough for a baseline.

 

[CzA]

Yea I get 110%

800-380 = 420

420/380 = 1.105 = 110%

or

380 + 380( = 100%) = 760

800-760 = 40

40/380 = 10.5 %

100% + 10.5% = 110%

Remember you are starting from 380, not 0, so 380 can’t go in to 800 twice from 380.


PEace.......

 

[spipedong]

yeah, I should have worded as 210% of the original value, because you have to subtract 100% for what you already have, making it 110% increased... hurrrrrr

i am so smart, S M R T

 

[RacerXJ220]

Thanks guys. The software only let's me go to -102% max.

Now I have to play with injector timing. The injector timing out of the box for the Stinger is 40m/s. Anyone have experiences with this adjustment + or -? Please provide input. I am trying to hit my target zone by compensation.

Jeff