Best gap of the spark plugs and timing for a 75 HP nos?

[CarlosPTR210]

What will be the right gab and timing if I use a 75HP NOS shoot? :1zhelp:

My spect:

T4, hot side .68, cool side .70
Water injcetion set on: 10 psi
Max boost: 17 Psi
Walbro FP
RC 550
FPR with vaccum set at: 26psi
Hard IC of 2.5"

 

[IJ.]

1 heat range colder and 25 thou should be safe enough as long as the fuel system can keep up.

 

[CarlosPTR210]

1 heat range colder and 25 thou should be safe enough as long as the fuel system can keep up.

so the gab can be .25?

 

[IJ.]

.025" or .63mm

 

[CarlosPTR210]

.025" or .63mm

OK! Thaks!

 

[supra_ed]

its not necessary to mess around with the timing for 75 shot?

 

[mkIIIman089]

I wouldn't close the gap unless you start having problems, personally.

1 heat range colder is a good idea though.

 

[IJ.]

Colin: It's just a suggestion to make sure it's on the safe side last thing you want is spark blowout.

Ideally the biggest gap that will still fire is the best but not knowing what condition or state of modification the car is in I err on the side of caution.

 

[mkIIIman089]

I'll put it this way, since I do agree with you.

I wouldn't, he should.

Just like I don't ever recommend an electric fan to anyone, or numerous other things I do which could lead to disaster if someone else tried it.

 

[foreverpsycotic]

is the shot wet or dry? what will you be using to control it?

 

[suprarich]

I agree, 1 range colder, .025 to .027 gap. Run nothing but the best gas you can find. Do not run more than a 75 wet shot with pump gas.