Moparts

M1 intake for a 505 street stroker?

Posted By: ccdave

M1 intake for a 505 street stroker? - 01/11/15 06:46 AM

I'm considering a M1 intake for my 505 ci RB engine I'm building.
Anyone running one?
The car and engine specs are as follows:

E body
3:23 gear
727 with 9.5 PTC conv. 2800 stall
Ported E heads
10.8 comp
Hyd roller 245@ .050 dur / 540 lift
Headers

The car is not a race car but will see the strip occasionally
Posted By: Joshs68

Re: M1 intake for a 505 street stroker? - 01/11/15 07:02 AM

You will like the EDDY RPM more. I have ran both, the M1 wasn't bad but the RPM is better. More low and mid range.
Posted By: Cab_Burge

Re: M1 intake for a 505 street stroker? - 01/11/15 08:46 AM

Quote:

I'm considering a M1 intake for my 505 ci RB engine I'm building.
Anyone running one?
The car and engine specs are as follows:

E body
2:23 gear
727 with 9.5 PTC conv. 2800 stall
Ported E heads
10.8 comp
Hyd roller 245@ .050 dur / 540 lift
Headers

The car is not a race car but will see the strip occasionally


Are you sure the gears are 2.23 and not 3.23 The single plane intakes are normally a little lazy below 2500 RPM with a stock stroke and bore stockish type motor, with a stock converter that can be a detriment With a big inch stroker and a good converter not so much Your combination will be good either way The RPM intake will make more torque and HP below 4500 RPM than the M1 will(I've dyno tested both a on 496 C.I. RB stroker)at WOT but after that the M1 takes over all the way to 6500 RPM
Posted By: 451Mopar

Re: M1 intake for a 505 street stroker? - 01/11/15 10:50 AM

Ran the M1 on my 451 low deck stroker and worked great. I had 3.91:1 gears and a 3,000 stall converter. Cam was a bit bigger 251 @ 0.050.

My 505 440 stroker had the RPM intake and it worked good to, cam is about the same size as yours in a manual trans car with 3.54:1 gear.

I'm not sure which intake is taller? The RPM is pretty tall for a deal plane intake. My M1 did not have any holes for vacuum hookup, so I drilled and tapped the plenum for a vacuum source. My HP carb did not have a vacuum port either.

On my RPM intake, I was running a Holley 770 CFM electric choke carb, and it required a 3/8" thick carb gasket to prevent the passenger side fast idle from hitting the manifold.
Posted By: Dabee

Re: M1 intake for a 505 street stroker? - 01/12/15 12:25 AM

I have the Indy single plane intake on my 511 stroker street engine. It's okay but I beleive the duel plane would be much better. If I was doing it again I would use a duel plane intake.
Posted By: OUTLAWD

Re: M1 intake for a 505 street stroker? - 01/12/15 12:49 AM

Running the 4150 M1 on the 493.

iron heads, 0.530/260 @ 0.050 cam, makes enough torque to cook the 315 drag radials at will.
Posted By: ahy

Re: M1 intake for a 505 street stroker? - 01/12/15 01:02 AM

I run the M1 single plane on an Ed headed 496 B stroker in a '70E with 5 speed. EFI. 243@.50" cam and 3.23 rear. I am very happy with it plenty of torque for normal driving at 2000 RPM... even in overdrive. If I don't completely stomp it it will pull clean from 1400 RPM. It is a bit tall... just fits under my flat hood with short EFI throttle body and a moderate drop air cleaner.
Posted By: StealthWedge67

Re: M1 intake for a 505 street stroker? - 01/12/15 07:21 AM

Given that everything else about your build screams "torque monster", I think a single plane would be a mistake. You'd give away mid-RPM torque, and you don't have enough cam to make it up, up top where the M1 will shine. An Eddy RPM or the new Mopar high rise dual plane (RPM clone) seem like the natural best choice here. Also, most of the comparisons I've seen would suggest that the RPM isn't giving much away up top anyway.
Posted By: Thumperdart

Re: M1 intake for a 505 street stroker? - 01/12/15 05:15 PM

Quote:

Running the 4150 M1 on the 493.

iron heads, 0.530/260 @ 0.050 cam, makes enough torque to cook the 315 drag radials at will.




Thank you.........I laugh(sometimes)when I hear about guys that can`t get a single plane to work on a fairly mild combo........kinda like t-rams do`t work down low. Get the carb clean and tune right and I`ll take the single almost always.........
Posted By: OUTLAWD

Re: M1 intake for a 505 street stroker? - 01/12/15 05:25 PM

Doesn't make much vacuum with that cam, but have a 4 hole spacer to help the signal out (maybe I'll give a tapered spacer a shot), drivability is no worse than my mild high 12 sec small block Dart.

The 500" motors make so much bottom end, I don't think a dual plane is really needed.

The off the shelf 10" 3k converter flashed to north of 4k, the Dynamic 9.5 is about the same, so low speed drivability was never really an issue. Normally run 3.55's, a 30" tire and it's a somewhat heavy car...
Posted By: Thumperdart

Re: M1 intake for a 505 street stroker? - 01/12/15 06:29 PM

Quote:

Doesn't make much vacuum with that cam, but have a 4 hole spacer to help the signal out (maybe I'll give a tapered spacer a shot), drivability is no worse than my mild high 12 sec small block Dart.

The 500" motors make so much bottom end, I don't think a dual plane is really needed.

The off the shelf 10" 3k converter flashed to north of 4k, the Dynamic 9.5 is about the same, so low speed drivability was never really an issue. Normally run 3.55's, a 30" tire and it's a somewhat heavy car...




YEP.................
Posted By: StealthWedge67

Re: M1 intake for a 505 street stroker? - 01/12/15 07:02 PM

Quote:

Quote:

Running the 4150 M1 on the 493.

iron heads, 0.530/260 @ 0.050 cam, makes enough torque to cook the 315 drag radials at will.




Thank you.........I laugh(sometimes)when I hear about guys that can`t get a single plane to work on a fairly mild combo........kinda like t-rams do`t work down low. Get the carb clean and tune right and I`ll take the single almost always.........




I never said a single plane CAN'T work.... It'll work just fine. I just think you're giving away mid-RPM torque to a good dual plane, and you're not making it up. I'm guessing if you looked at the RPM range that cam works best in, it will darn near mirror the range of an RPM. The M1 is gonna start to outshine the RPM at about 6000. His cam is done by then.

Posted By: Thumperdart

Re: M1 intake for a 505 street stroker? - 01/12/15 07:28 PM

Quote:

Quote:

Quote:

Running the 4150 M1 on the 493.

iron heads, 0.530/260 @ 0.050 cam, makes enough torque to cook the 315 drag radials at will.




Thank you.........I laugh(sometimes)when I hear about guys that can`t get a single plane to work on a fairly mild combo........kinda like t-rams do`t work down low. Get the carb clean and tune right and I`ll take the single almost always.........




I never said a single plane CAN'T work.... It'll work just fine. I just think you're giving away mid-RPM torque to a good dual plane, and you're not making it up. I'm guessing if you looked at the RPM range that cam works best in, it will darn near mirror the range of an RPM. The M1 is gonna start to outshine the RPM at about 6000. His cam is done by then.






Agreed to a point and of course more gear and vert can usually over come any low/mid range issues at least it did for me.
Posted By: Twostick

Re: M1 intake for a 505 street stroker? - 01/12/15 08:00 PM

My 493 makes over 500 ft/lbs from 2000 to 5000. Peaked at 600 @ 4000.

That was with an M1 with TBI and an MP509 cam. The only reason I changed the converter to a 2800 stall was because it idles at 1100 and it was banging the crap out of the drivetrain every time you shifted out of Park.

It's in a 4800 lb C-body and other than the harsh engagement it drove just fine with the stock converter and 2.76 gears. It has 3.23 now and the engine sounds happier at part throttle cruise.

Kevin
Posted By: Thumperdart

Re: M1 intake for a 505 street stroker? - 01/12/15 08:06 PM

Quote:

My 493 makes over 500 ft/lbs from 2000 to 5000. Peaked at 600 @ 4000.

That was with an M1 with TBI and an MP509 cam. The only reason I changed the converter to a 2800 stall was because it idles at 1100 and it was banging the crap out of the drivetrain every time you shifted out of Park.

It's in a 4800 lb C-body and other than the harsh engagement it drove just fine with the stock converter and 2.76 gears. It has 3.23 now and the engine sounds happier at part throttle cruise.

Kevin




I`m guessing the TBI helped keep it nice and clean............
Posted By: Twostick

Re: M1 intake for a 505 street stroker? - 01/13/15 12:36 AM

Quote:

Quote:

My 493 makes over 500 ft/lbs from 2000 to 5000. Peaked at 600 @ 4000.

That was with an M1 with TBI and an MP509 cam. The only reason I changed the converter to a 2800 stall was because it idles at 1100 and it was banging the crap out of the drivetrain every time you shifted out of Park.

It's in a 4800 lb C-body and other than the harsh engagement it drove just fine with the stock converter and 2.76 gears. It has 3.23 now and the engine sounds happier at part throttle cruise.

Kevin




I`m guessing the TBI helped keep it nice and clean............




Well...

It was AWFUL at first. I knew just enough about EFI and O2 sensors to be dangerous to myself and others. 76 deg of overlap causes a lot of reversion which causes a lot of random misfires which will drive a closed loop system absolutely bonkers.

Fortunately while I may not be that smart, I know people who are.

My buddy while not familiar with the 950 Commander system, discovered pretty quick that it could be set to switch between Alpha Numeric and closed loop so we set it to run A/N under 1800 and played with the map until it was happy, much like you would with a carb. Happy was no where near stoic I might add.

Once the engine was past 1800 it cleaned up enough that it would tolerate closed loop again without going into yo-yo mode and it was good to go.

Kevin
Posted By: Thumperdart

Re: M1 intake for a 505 street stroker? - 01/13/15 02:45 AM

Whatever works man and if it wern`t for people smarter than me, I`d still be pretending I know what the hell I`m talking about and doing so god bless those willing to spread the love and info..............
Posted By: therocks

Re: M1 intake for a 505 street stroker? - 01/13/15 03:25 AM

I run the M1 and a 1050 Dominator on the street.My 440 likes it.Rocky
Posted By: Dabee

Re: M1 intake for a 505 street stroker? - 01/13/15 03:46 AM

Quote:



Thank you.........I laugh(sometimes)when I hear about guys that can`t get a single plane to work on a fairly mild combo........kinda like t-rams do`t work down low. Get the carb clean and tune right and I`ll take the single almost always.........




What makes you think I said I can't get the single plan on my 511 to work right. It works fine. All I said was "If I did it again I would go with a duel plane". My car is street driven, has AC, PS, PB, weighs 4000 lbs, a GV and a small cam that runs out of steam around 5400. It's only turning 2400 RPM at 70 MPH thus no advantage in running a single plan.
Posted By: ccdave

Re: M1 intake for a 505 street stroker? - 01/13/15 04:38 AM

Looks like I'm gonna stick with my Indy dual plane

I was looking at a different intake because I did not want to deal with the misallighned port issues I have with my existing Indy intake On my other engine The JB weld I used to correct the problem is still there however the epoxy has shrunk and needs to be redone in that I'm not comfortable with the epoxys current state. In other words, I'm tired of #*^#%{^{^} with this manifold

Despite the casting issues with my Indy intake, I like the performance and intake height of the Indy DP. Clears my air cleaner
Posted By: Thumperdart

Re: M1 intake for a 505 street stroker? - 01/13/15 05:35 AM

Quote:

Quote:



Thank you.........I laugh(sometimes)when I hear about guys that can`t get a single plane to work on a fairly mild combo........kinda like t-rams do`t work down low. Get the carb clean and tune right and I`ll take the single almost always.........




What makes you think I said I can't get the single plan on my 511 to work right. It works fine. All I said was "If I did it again I would go with a duel plane". My car is street driven, has AC, PS, PB, weighs 4000 lbs, a GV and a small cam that runs out of steam around 5400. It's only turning 2400 RPM at 70 MPH thus no advantage in running a single plan.





Pay attention boy, My response was to twostick so don`t be so jumpy and take a chill pill.............
Posted By: Streetwize

Re: M1 intake for a 505 street stroker? - 01/13/15 04:27 PM

The indy dual plane if you have a good (non core-shifted casting is an excellent 500" manifold, it needs a little lower plenum transition porting to the runners but flows VERY well.

I also like a well-ported Holley Street Dominator for that combo, easier to port than the M1 (which has tall/narrow runners) on a 500", I had one on my old 508" RB with ported Stage V heads that had an ~3.25 sq Inch port cross section which is about the ideal balance of maintaining great velocity and still giving you sufficient flow and power above 5500 rpm with the 500 inches.

The only other real drawback to the M1 single (other than it's rather "bland" to look at under the hood) is it's pretty tall for a stock hooded B or E body.
Posted By: ccdave

Re: M1 intake for a 505 street stroker? - 01/14/15 12:56 AM

Yes. I remember picking out the Indy dp and the Mopar Nationals years ago at the Indy tent. They had 3 or 4 to choose from at the show, I picked the one with the least amount core shift
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