Real octane booster

ATXHEMI · Apr 27, 2015

With the heads being milled it raises the compression. This means running 93 octane. 93 is every where here. That's not an issue. Just wondering if adding some octane booster like Torco or Klotz would be any benefit. Both are true octane boosters. And both are fuel stabilizers. Any info/opinions on this?

Dubstep Shep · Apr 27, 2015

What's your static compression ratio and dynamic compression ratio supposed to be?

ATXHEMI · Apr 27, 2015

Static is 10.27-1 and Jay told me the dynamic but I don't remember

Dubstep Shep · Apr 27, 2015

Uh, isn't the factory compression ratio 10.3:1?

ATXHEMI · Apr 27, 2015

9.6-1

Dubstep Shep · Apr 27, 2015

That seems like a HUGE jump for just milling down the heads then. How much is coming off them?

ATXHEMI · Apr 27, 2015

0.030

Dubstep Shep · Apr 28, 2015

Hm. What's your new combustion chamber volume?

charonblk07 · Apr 28, 2015

Adding an octane booster wouldn't do much at that compression ratio, I found I had zero issues with mine at a 10.9CR with the Eagle head swap running 94. If you want to do more timing advance then it's a different story but you need the boosted just for the moderate compression increase.

hemihustlin · Apr 28, 2015

This sort of seems like a stupid question but i was wonder why toluene is not used as an octane booster. It has an anti knock index of 114 and was used in the 80's by at least one f1 team. I understand that as a pure fuel it doesnt vaporize properly untill 70 celsius but mixed with pump gas that should lower the vap point enough to be useful?
Now i can see the potential problem, in order to bring the vap point down enough too much gas would have to be added so the octane boost would be minimal.
Second is availibility and purity, surely the gallon of toluene bought at home depot is not refined enough to be used as fuel.
I guess thats why everybody uses ethanol...

Dubstep Shep · Apr 28, 2015

jmgak47 said:
Stock is 84.9 and he should be close to 78.9

Is that the only thing you guys are doing to bump up the SC?

ATXHEMI · Apr 29, 2015

As far as I know yes. But this is above my knowledge.

Real octane booster

ATXHEMI

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Dubstep Shep

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ATXHEMI

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ATXHEMI

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