Originally posted by Victell
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From knowing nothing to having a Thunderbird supercharger on an m20b27i
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Originally posted by Andy.BWhenever I am about to make a particularly questionable decision regarding a worryingly cheap diy solution, I just ask myself, "What would Ether-D do?"
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Hi,
I've been following this thread for a while, as I'm also attempting to fit an M90 (from an L67) to my M20.
Will your manifold alone reliably support the weight of that M90 with the sudden engine movements on acceleration/deceleration?
My M90 weighs about 16 kgs, but I will have the bypass/throttle body part chopped off just past the rear needle bearings, which should make it lighter and hopefully short enough to actually fit...
Aren't you concerned about the lubrication of the upper cogwheel and rotor bearing with the charger oriented this way?
Good luck with your build!
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Originally posted by Scywrath View PostHi,
I've been following this thread for a while, as I'm also attempting to fit an M90 (from an L67) to my M20.
Will your manifold alone reliably support the weight of that M90 with the sudden engine movements on acceleration/deceleration?
My M90 weighs about 16 kgs, but I will have the bypass/throttle body part chopped off just past the rear needle bearings, which should make it lighter and hopefully short enough to actually fit...
Aren't you concerned about the lubrication of the upper cogwheel and rotor bearing with the charger oriented this way?
Good luck with your build!
You know, I don't know if it will eventually break the manifold or not. I have thought about it, and I guess we'll find out sooner or later. I will be adding bracing to the valve cover and down to the block as well. This should help.
Lubrication? I feel like the bottom gear will transfer oil to the top as it rotates. I also don't see a reason not to just fill that baby all the way up with oil.
Good luck on yours as well.
I'm so excited I could just shit.
-JacobOriginally posted by Andy.BWhenever I am about to make a particularly questionable decision regarding a worryingly cheap diy solution, I just ask myself, "What would Ether-D do?"
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Originally posted by Ether-D View PostYou know, I don't know if it will eventually break the manifold or not. I have thought about it, and I guess we'll find out sooner or later. I will be adding bracing to the valve cover and down to the block as well. This should help.
My plan is to fit it to the under the original manifold supported by some rectangular tubes (idk if that's what they're called) bolted to the top of the manifold and I will also reinforce the support at the valve cover. I'm also going to use some support from the block, probably using the l-jet distributor area.
I may be overly concerned about this because my car is a daily driver.
Originally posted by Ether-D View PostLubrication? I feel like the bottom gear will transfer oil to the top as it rotates. I also don't see a reason not to just fill that baby all the way up with oil.
The SC shaft (at least on mine) is vented, so it's not possible to fill it up without plugging that vent which I don't want to do.
I also read somewhere that too much oil in the SC creates a lot of friction which causes the charger to overheat and gets it damaged.
Originally posted by Ether-D View PostGood luck on yours as well.
Originally posted by Ether-D View PostI'm so excited I could just shit.
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No, it means that I'm very excited...Originally posted by Andy.BWhenever I am about to make a particularly questionable decision regarding a worryingly cheap diy solution, I just ask myself, "What would Ether-D do?"
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Originally posted by Scywrath View PostWill your manifold alone reliably support the weight of that M90 with the sudden engine movements on acceleration/deceleration?Originally posted by Matt-Bhey does anyone know anyone who gets upset and makes electronics?
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Originally posted by george graves View PostBeing that you can climb onto the top of an m20, and stand on it's manifold with out issues, I don't think that's an issue at all. 12 bolts, all just to evenly spread the weight around, I don't think it's an issue.
With his manifold, the lever arm is even greater than the original.
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Originally posted by Ether-D View PostLubrication? I feel like the bottom gear will transfer oil to the top as it rotates. I also don't see a reason not to just fill that baby all the way up with oil.
Do not fill it all the way up. The oil will expand as the engine warms up and either spill out the vent or pressurize the inside of the gear case if it can't get out the vent.
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Originally posted by Scywrath View PostMy M90 weighs about 16 kgs, but I will have the bypass/throttle body part chopped off just past the rear needle bearings, which should make it lighter and hopefully short enough to actually fit...
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Originally posted by Scywrath View PostHi,
I've been following this thread for a while, as I'm also attempting to fit an M90 (from an L67) to my M20.
Will your manifold alone reliably support the weight of that M90 with the sudden engine movements on acceleration/deceleration?
My M90 weighs about 16 kgs, but I will have the bypass/throttle body part chopped off just past the rear needle bearings, which should make it lighter and hopefully short enough to actually fit...
Aren't you concerned about the lubrication of the upper cogwheel and rotor bearing with the charger oriented this way?
Good luck with your build!
My question is if you could run an intercooler somewhere in this system, since the M90 tends to run prreeeeeeetty hot.
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Originally posted by MaxBell View PostThe real issues here are the ~50 hp constantly trying to tear the charger off the motor. The rotational force alone has pulled plenty of chargers off their motors.
There doesn't seem to any valid source about this, but what I found was that an M90 providing 10 psi boost at 6000 rpm = 18 HP, which is still a lot...
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Originally posted by MaxBell View PostMy question is if you could run an intercooler somewhere in this system, since the M90 tends to run prreeeeeeetty hot.Originally posted by Andy.BWhenever I am about to make a particularly questionable decision regarding a worryingly cheap diy solution, I just ask myself, "What would Ether-D do?"
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