Peel engine puzzling?

If ya wanted/needed to out sprint elite moderns way up over the ton,
yet also needed to operate at pussy cat power response over slick
steeps off road with only 91 octane available,
What would ya do?

I'm experimenting with a 920 10:5 CR feed by Drouin 10+ PSI boost
to motivate less mass than average Commando and below elites bike mass.
How would you away with it?

Set ups for all out power sprints to speed are usually incompatible
for responsive low speed tame throttle operation.
References say 12 CR is about tops for 91 octane, in water cooled
small chamber Al head engines.
Ignition timing curves for steady grind with some manifold vacuum
ain't the same for hi rpm under best boost.
Fuel needs are about as opposite as can be too for scope of
ride conditions, trials to hill climbs.

Build it for low speed response and it chokes down for top speed,
build it for top end and its a barking bite-less dog down low.
I have best of handling worlds, loose grit to crystalline edged tarmac,
Peel-me must have best of both ends power bands.

Is it doable with mostly biplane era technology to add an
extra rub off of sneers from hi tech cycle wonders?
If so how so?

hobot





.

Hobot,

Don't let the gas hold you back, use premium with an octane booster. Common to any autozone or truckstop. That way you can keep the ignition advance, no worries about too much boost or spark knocking. Also it keeps your engine running cool so it doesn't get too hot when you get stuck in traffic.

Don't let the gas hold you back, use premium with an octane booster

Click to expand...

Ugh, if I have think about where to get next octane fix or carry a bottle,
then Ms Peel's Plan A against the grain experiment failed.
91 octane is tops at most stations here and my farm tank.
But creek and tap and bottled water is everywhere and only needed in
short intervals of lugging or blasting. 15% water as fuel gives ~116 octane
a bit more than the barrels of 112 garden tractor pullers have here or
the cans of boosters.
Calculators imply 116 octane is a more than enough for full spark advance
for maximum torque.
Will monitor for detonation and tweak water till none.

Dilemma is making this spray work when needed in both hi vacuum
and 'hi' boost states. Blower don't boost at low rpm and at times
will not be hooked up for more normal un-boosted rides.

Peel's Ignition system has rpm settings to trigger signals to external switches,
plus its own curve selection from feed back of rpm and added sensors.
Low rpm no boost
I figure to spray when rpms low but hi vacuum seen, like nailing
it up a slope but not spin out or accelerate much, in hi enough
gear torque is tamed. 'Lugging' w/o balking jerking or stalling
or knocking. Likely the most common condition water needed.
Hi rpm Lots Boost.
Figure ignition will see hi rpm and switch to a second PSI sensor
that triggers water spray when boost hits say 6 PSI or I detect
detonation.
Non of the Above,
I figure just riding about sanely calmly and legal cruise it won't
need nothing but 91 octane and some air flow.
Also even with blower if I can tame throttle hand then only low loads
to create need of hi octane.

Plan A still on far as I can see.

hobot