Whats your octane vs. Boost vs. elevation

[machineman]

I hear alot of different ideas. Whats a safe boost level for 92 non eth pump?
I am running 10# at 3500-6000' with a blend of 50/50 110 and 92 thus 101 octane. Whats working for you?

MM

 

[silberpro]

Whos turbo you using?

 

[philsummers21]

I run straight av. Boost depends on elevation but 10-12# 8-10000 ft.
Could probably run a blend of av and 91 but its easier to run straight av and its cheap insurance

 

[machineman]

Silber,

 

[FurryCURT]

100 ll av @8# boost. 8k-10k elevation. Adding 1oz oil per gallon to"grease up" the dry AV gas. Plugs are cheap compared to a top end.


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[Sunvang]

Straight 98 RON pump gas fuel, elevation 1500-4000ft, boost at 6psi, Boondocker non intercooled kit.

 

[powerfuldodge]

91oct - 6PSI - 1000ft -silber/boost it-rkt head

 

[ghost rider]

Boost

60 AV 40 premium 91: boondocker turbo 11 pds 7-10,000ft.

 

[whittaker727]

Straight AV at 4-7K on a BD non intercooled kit at 10 psi. I'm either going to turn up the boost or back off my mixture to save some fuel money.....who am I kidding, I'll boost it up

 

[die hard poo]

0-2000ft, Straight 100LL, 10-12 psi boost
12 Silber
PAR 12.5 head
Lots of WOT, no det so far....

 

[Vi-PEC Powersports]

91 pump, Vi-pec hm turbos,8 psi, sea level, 1/2 oz of oil per gallon(for the extra air coming in).

 

[philsummers21]

Thinking i need to get a high compression head for my elevation and the straight av.

 

[die hard poo]

Thinking i need to get a high compression head for my elevation and the straight av.

If you are wanting to run straight 100ll (like I do, I hate the inconsistency of blending fuels), I would recommend upping your comp to get that low end snap back and be able to run that fuel to its optimum ability. Heck I am running at sealevel with a higher comp head than stock and still pushing 10-12# no problem! I even tried mixing some 87 octane on a couple rides with no det on 10#.

 

[philsummers21]

Yep. Thinking i will. didnt realize you low elevation guys were running so much boost on av... Im pretty happy with 12# at my elevation... Just want the low end snap back. Been trying to clutch it away but not gettting very far.

 

[Huntej1]

So far... 25% 100LL mix with 92 octane, non ethanol. 3000-6500 ft. 6-8lbs (self adjusting EBC)