Will 25% nitro kill my Inferno 7.5 ??

[Sasquatch]

Hi all.

Due to some recent changes in my LSH and reconfigutarion of their nitro stock they now only have 10%, 16% and 25%.

Offcause I could go and buy 1:1 of 16% and 25% and mix them into 20.5% buy I just thought for the sake of simplicity I'll run 25% in my Inferno 7.5.

I have the GX-21 stock engine in there with only 1½-2 gallons through it.

Will I kille it or somply just never have a good running engine if I go for the 25%. I have no overheat problems as it is now (20%)

Also I run a Savage25 and would like to store only one percentage

[GaInGrEEn]

Nope, just change your glow plug and rich in it up about 1/8th a turn

[pissant]

i have never used 25% but i dont believe it would kill your engine? I know poeple use 30% and it runs just fine, it may shorten your engine life but not enough for you to notice!!

[CJ-FOREVER]

I also read somewhere (Not sure where) that if you change the % of fuel that you should go through the breakin procedure(sp?) again. Other words pretend it is a new engine again.

[Nitro_Freak]

just tune for the diff. %age and you'll be fine

[Ericke1]

If your going to run a new mixture of fuel you should let it run one tank on idle to re-initiate the break-in process. You can add a spray or two of armor-all to your bottle of fuel to ensure a bubbleless fuel mixture.

[Sasquatch]

Gaingreen: change the plug... hotter or colder... are you sure that is nessecery?

Currently I use the OS A3 it came with. I have some OS A5 for my Savage 25 and some OS #8 for my T-Maxx.

Ericke1 & others: OK. I will make a mini-break-in with an idle tank and one slow running tank and then the retuning begins. All after richening it up first....

I will let you know how it goes regarding performance and temps.

Thank you for the quick advice....

[WA2FAST]

I personally think it's going to blow up... it will Kill your engine. J/K... no, just do what they mentioned above and you should be just fine. You should get a tad more power out of 25% anyway... engine life shouldn't be noticibly less either. You'll be just fine man.

[GaInGrEEn]

No just put a new plug in. Because the old plug is broken in with the lower nitro. That old plug is gonna go quick under the new fuel. New plug and richen up just a hair. If your engine was in tune, should just need about 1/8 more on both needles. I switched from 20 to 30 and the plug went almost instantly. I personally don't see any advantage after the 20%. I can just get the 30% so much cheaper.

OH and I would recomend not using an A3, I don't know why they give you such a hot plug. Try the A5. I have never been able to tune a engine properly with an A3. Well, of course if your in a cold climate then the A3 would be needed. I live in Atlanta where it is H O T. I run RB 7s in the summer and RB 6s in the winter.

[WA2FAST]

I run the A5 in MI... works out great. Even though MI weather sucks ass... maybe it's cause it never gets to run cause it's always raining, snowing, humid as shit, storming, or whatever... Ha!

[Sasquatch]

OK. Thanks again.

I have just bought 15L (4 gallons) 25% today.

[SkyMaxx]

If you were to drop that fuel on your buggy and/or engine, then it might kill your Inferno.

Plug change, mini-break in and retune is all good advice.

[WA2FAST]

Cool, good luck with it.

[Sasquatch]

Hehe. Yup Might "seperate" the Nitro from the buggy except in small 125cc ammounts...

[dgrobe2112]

Also.. you can not mix the fuel to get the different %.. meaning.. mixing 20 and 30 fuels does not give you 25%.. mixing 16, and 25, does not give you 20.5%.. common misconception.. same with shock oil.. that dont work..

25% is fine.. most engines come from the factory with head shims for 25%..