[davie]

i know ZEX recommends a 4 degree retard on the ignition timing if you plan to squeeze a 75 shot but is it possible to run that high of a shot without retarding the timing? thanx

 

[laughin2.2]

That's like buying a ferrari and filling her up with 87 octane. You can do it and it will run, but you'll hurt the car in the process.

 

[Show0ff]

ahha damn man i asked the same questions around a fe wother webboards b4 i upped to 75 shot 2 weeks ago.. nthey say yes u can.. but its more riskier... but this is what my performance shop told me... "do you want to come back here someday with a blown engine because you dindt want to retard yer timing a few degrees"

in other words.... retard or rebuild... is the few horsepoer u lose worth the cost of a new engine?

 

[NationsMostWanted]

its better to retard the timing. its not a big thing. wont slow u down much

 

[gob_2k]

ShowOff is right. Its not hard either, to retard timming that is. Its easy.

 

[aalva]

nitrous

Run plugs one to two ranges colder than stock (they will dissipate heat through the head better lessening the chance of detonation) also raise your octane to at least 100 (NOS makes a booster good for about 7 points) the lower the octane the more volatile your fuel making premature ignition from heat more likely. This will allow you to run your 75hp shot, if your still uncertain retard about 1 degree.

 

[GTRsi]

i think 100 octane fuel is unneccasry. just retard the timming.

 

[wutangben]

just so you know (not that i condone it) but i've ran my last 4 bottles with the 75 shot jets, no timing retard. although the minimum octane fuel i ran with was 94.

peace

 

[Mugenpwr]

2 degrees of retard should be sufficient for a 75hp shot.