MM pulse chamber intake manifold

[thedguy]

Resurrecting this bitch!

The engine wanting to keep pulling is more about the cam: duration, lift and timing. That is not the only thing but it is one of the major culprits. You could also over port your head. You can have all the pulling power up top and fall on your face down low. I bet Jim's motors have nothing to talk about below 4500rpm, all things considered that it's a stroker motor, and should make gobs of torque across the board and not just in the mid to upper range.  We all know it's the Torque that makes you feel the pull and not the Horsepower. HP numbers means nothing without the TQ.

Circle tracks are also a lot different from street driving as is road course driving. If you always want to use a gear lower than usual to stay above 4500rpm and keep it in the power band....well then there might be a bit more wear on the engine etc.

I have to say that they do look cool as hell and would definitely have tested this theory myself if I hadn't picked up a set of Dbilas ITB's.

Cheers,
~Ralph

Far from it.  I have a sick/twisted desire to see how motors pull from low revs.  Driving an e30 with Jim's motor in it pulled very well in 5th from 1k rpm+.  

I'm interested in using this on my project engine, but i want to mount ITBs on the lower part of the intake. I suppose this will still work for me though, or not?

Also how do you guys think would adding Injectors in the pulse chambers for high RPM use work?

You'd have to use the e30 manifold on the e36, but IIRC there is hood clearance issues.

Not sure why you would need/want extra injectors in the pulse chambers unless you needed the fuel for lots of boost.

[Warsteiner]

"

Resurrecting this bitch!
Far from it.  I have a sick/twisted desire to see how motors pull from low revs.  Driving an e30 with Jim's motor in it pulled very well in 5th from 1k rpm+."  



I should have worded my statement a bit differently. Of course any stroker motor is going to pull better than a stock motor due to the change in displacement. But now take a motor that is overcammed and one that is not and you should see the difference immediately.

Now, was that full throttle as in the pedal to the floor immediately at 1K in 5th like on a dyno run? If you feather the throttle than you can get any car to move along from that kind of load.

Glad that you enjoyed your drive in Jim's motor. I can't wait for mine to be done.

Cheers,
~Ralph

[thedguy]

Resurrecting this bitch!
Far from it.  I have a sick/twisted desire to see how motors pull from low revs.  Driving an e30 with Jim's motor in it pulled very well in 5th from 1k rpm+.

I should have worded my statement a bit differently. Of course any stroker motor is going to pull better than a stock motor due to the change in displacement. But now take a motor that is overcammed and one that is not and you should see the difference immediately.

Now, was that full throttle as in the pedal to the floor immediately at 1K in 5th like on a dyno run? If you feather the throttle than you can get any car to move along from that kind of load.

Glad that you enjoyed your drive in Jim's motor. I can't wait for mine to be done.

Cheers,
~Ralph

No dyno.  Was coming over the tracks from the test road behind his house through town.  I let the car come down to 1k in 5th then as after coming over the tracks I gave it the beans, not touching the clutch.  

I've driven larger displacement factory engines that can't do what this motor did, on the top or bottom end.  There are a lot small things he does to his engines that make them perform very nicely as street engines.  Definitely a case of sum being greater than it's parts.  If I could justify the cost I'd gladly have one.

[trackjunkie21]

What is the price on one of these?

[Warsteiner]

Pulse Chamber Intake Manifold    M42   $1000

Core $150

http://metricmechanic.com/prices/pricing-intake-and-exhaust.php

~R