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What would happen if one were to bolt a Moss supercharger to a "fast road modified" TR6 engine.
Meltdown?
Meltdown?
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OP
Tinster
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What does it feel like to drive a
TR6 for more than 30 miles and not
have it break down under you and
leave you stranded ?
Supercharged, indeed!!
Operational would be a blessing.
d
TR6 for more than 30 miles and not
have it break down under you and
leave you stranded ?
Supercharged, indeed!!
Operational would be a blessing.
d
If 'fast road' means you've raised the compression ratio to 9.5:1 or so, then you'll be in for trouble. Detonation is a problem with a boosted engine. I had the Moss blower on my 1.8l Miata and detonation was a constant problem even at 5.5 psi (everything stock on the engine). I ran an aftermarket knock sensor / ignition retard unit to keep the engine alive. Now they have better ignition retarding units so it may work better on the Miata.
Perhaps you could recurve the distributor enough to have the engine work at low rpm and not melt at high rpm.
You could also put a bigger pulley on and limit boost to a couple of psi to avoid detonation but then what's the point?
Bryan
Perhaps you could recurve the distributor enough to have the engine work at low rpm and not melt at high rpm.
You could also put a bigger pulley on and limit boost to a couple of psi to avoid detonation but then what's the point?
Bryan
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BryanC said:
Yup. Better "realistic" goal would be: go find ANOTHER engine, wind it together from scratch for low compression and a blower.
That'd ALSO go a long way to alleviating the boredom. /bcforum/images/%%GRAEMLIN_URL%%/laugh.gif
...and you'd have a known good spare for when it SCATTERS! /bcforum/images/%%GRAEMLIN_URL%%/devilgrin.gif
PATR8
Jedi Knight
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I had found a turbo from an Olds 215 I had thought about putting in my TR8, but with the raised compression I run, the cost of restoring the turbo, I decided what I have is fine and seems to meet the common sense test. The super charger would be sweet while it worked though...
Brosky
Great Pumpkin
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Buy a dog if you're bored and take him for a ride with you. A nice Lab or Golden will make you and him look good.
Better than blowing up your nicely built engine.
Yes, it will happen. It's just a matter of how soon it will happen.
OR..............you could fly to PR and spend a week helping Dale get his a nice as yours.
Better than blowing up your nicely built engine.
Yes, it will happen. It's just a matter of how soon it will happen.
OR..............you could fly to PR and spend a week helping Dale get his a nice as yours.
YankeeTR
Luke Skywalker
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Supercharging is cheap horsepower. If you have a static compression of 8.5 to 1 or less you'll be OK.
Keep the boost around 5 lbs.(due to the spindly crank). You will need to recurve the distributor or install something like a MSD box with a timing retard feature to keep the motor from detonating.
My blown 354 Hemi has a simple, old style set-up with a stock distributor, no timing retard, etc. Hemis are very forgiving of timing miscues due to the inherent efficient design of the combustion chamber. I don't plan on running the engine hard. It will probably never see 5,000 RPMs on my watch. I built it for the look and the low-end grunt that a blower provides.
Having a mild 'blower grind' cam may help. A supercharged engine doesn't need a lumpy cam to work good. The cam in my 354 is very mild. They do like a little wider lobe centers which allow the blower to pump the air in and out a little better. Talk to a good cam outfit about a blower grind (Clay Smith, Comp Cams, etc.) Even if they don't have a blank for you they can regrind your stock cam or , at least, give you good advice.
Keep the boost around 5 lbs.(due to the spindly crank). You will need to recurve the distributor or install something like a MSD box with a timing retard feature to keep the motor from detonating.
My blown 354 Hemi has a simple, old style set-up with a stock distributor, no timing retard, etc. Hemis are very forgiving of timing miscues due to the inherent efficient design of the combustion chamber. I don't plan on running the engine hard. It will probably never see 5,000 RPMs on my watch. I built it for the look and the low-end grunt that a blower provides.
Having a mild 'blower grind' cam may help. A supercharged engine doesn't need a lumpy cam to work good. The cam in my 354 is very mild. They do like a little wider lobe centers which allow the blower to pump the air in and out a little better. Talk to a good cam outfit about a blower grind (Clay Smith, Comp Cams, etc.) Even if they don't have a blank for you they can regrind your stock cam or , at least, give you good advice.
OP
Tinster
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Bill-
Take out yer existing engine and ship it to me.
I'll take out Crypty's engine and ship it to you.
You can supercharge PDO Pedro's engine and not feel
too bad when it blows up under you.
I'll have a decent engine that might go a few hundred
miles with no breakdowns. And you will still have pride
in the engine.
We both win and you will never be bored repairing yer new
engine. Believe me, I know of which I speak!
d /bcforum/images/%%GRAEMLIN_URL%%/winner1.gif
Take out yer existing engine and ship it to me.
I'll take out Crypty's engine and ship it to you.
You can supercharge PDO Pedro's engine and not feel
too bad when it blows up under you.
I'll have a decent engine that might go a few hundred
miles with no breakdowns. And you will still have pride
in the engine.
We both win and you will never be bored repairing yer new
engine. Believe me, I know of which I speak!
d /bcforum/images/%%GRAEMLIN_URL%%/winner1.gif
bobh
Jedi Warrior
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Swap to a 302 Ford. That will keep you busy and provide more power with a stock build than you'll get from a forced induction TR engine.
Maybe you should consider a second car to experiment with. TVR M series cars will take a 302 without having to mod the engine bay. They show up on EBay fairly often. Could be fun.
Maybe you should consider a second car to experiment with. TVR M series cars will take a 302 without having to mod the engine bay. They show up on EBay fairly often. Could be fun.
roberttr6
Freshman Member
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TR6BILL said:
I have the Moss kit on my stock motor TR which has uprated suspension, wheels, tires, brakes, etc.
the thing rocks with the standard 6 lbs of boost, passing is easy I dont even have to shift from 4th gear, since too much isnt ever enough I have just installed the boost upgrade pulley and now its produces 9 lbs of boost! No detonation and no drama-plus the biggest advantage vs. extensive headwork, big valves, roller rockers is that the torque is linear and comes on instantly so you dont need to rev the heck out of it to make peak power
Rob at Moss Motors
OP
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roberttr6 said:
Hey Rob,
I take every thing bad I have ever said about Moss Motors back! You snuck in under my radar.