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mechanical injection ? #833680 10/19/10 10:23 AM 10/19/10 10:23 AM
Joined: Oct 2005 Posts: 976 ontario canada mac56 OP super stock
mac56 OP super stock Joined: Oct 2005 Posts: 976 ontario canada	How big of a role does the intake and throttle body play with port injection? It seems there is no limit to the size of throttle bodies being used. Is more air capabilty better and is a tunnel ram better with 2 throttle bodies or is a single plain that flows well just as good. I'm just speaking general terms. In specfic terms will my B-1 orginal single plain work well with a terminator on top or would you go tunnelram? Thanks

Re: mechanical injection ? [Re: mac56] #833681 10/19/10 11:00 AM 10/19/10 11:00 AM
Joined: Jan 2003 Posts: 6,314 The Swamp MegaDart master
MegaDart master Joined: Jan 2003 Posts: 6,314 The Swamp	IMO, a tunnel ram with hat injection has more potential then a low rise intake with one or even two throttle bodies. But I have no scientific data to back that up!! lol 6258128-fuelliner1.jpg (302 downloads)

Re: mechanical injection ? [Re: MegaDart] #833682 10/19/10 11:37 AM 10/19/10 11:37 AM
Joined: Oct 2005 Posts: 976 ontario canada mac56 OP super stock
mac56 OP super stock Joined: Oct 2005 Posts: 976 ontario canada	Is that a Hat on top of your tunnelram Wayne?

Re: mechanical injection ? [Re: mac56] #833683 10/19/10 11:47 AM 10/19/10 11:47 AM
Joined: Sep 2003 Posts: 2,008 Sweet Home Alabama M MRMOPAR622 top fuel
MRMOPAR622 top fuel M Joined: Sep 2003 Posts: 2,008 Sweet Home Alabama	I run a tunnel ram with 2 Ron's Terminators(2950 cfm) on mine. It works really well. I have never run 1 on just a single carb. intake,so I really cannot say its better. This is my first time running alochol,but all my engines have always run better and made more power with a tunnel ram on racing gas. "To Be The Man'You Have Got To Beat The Man" "T/D and Pro-Bracket Racer"

Re: mechanical injection ? [Re: MRMOPAR622] #833684 10/19/10 11:52 AM 10/19/10 11:52 AM
Joined: Sep 2003 Posts: 2,008 Sweet Home Alabama M MRMOPAR622 top fuel
MRMOPAR622 top fuel M Joined: Sep 2003 Posts: 2,008 Sweet Home Alabama	Almost forgot I'm sure Ron's or any of the others can get you running good with your intake. It might not be a bad idea to step up to a better intake now instead of later. "To Be The Man'You Have Got To Beat The Man" "T/D and Pro-Bracket Racer"

Re: mechanical injection ? [Re: MRMOPAR622] #833685 10/19/10 12:12 PM 10/19/10 12:12 PM
Joined: Jan 2003 Posts: 684 St. Charles, MO. S Slingshot383 mopar
Slingshot383 mopar S Joined: Jan 2003 Posts: 684 St. Charles, MO.	The plenum in a tunnel ram helps airflow, both in wet or dry systems. A well ported tunnel ram with a hat or a pair of throttle bodies can actually make more power over a broader rpm range than an 8-stack system. 1994 Undercover Chassis 125" altered stack injected big block, soon blown and injected Member of The Torque and Recoil Club

Re: mechanical injection ? [Re: mac56] #833686 10/19/10 12:12 PM 10/19/10 12:12 PM
Joined: Jan 2003 Posts: 6,314 The Swamp MegaDart master
MegaDart master Joined: Jan 2003 Posts: 6,314 The Swamp	Quote: Is that a Hat on top of your tunnelram Wayne? Yes it was an Enderle bug catcher 6258233-front.jpg (325 downloads)

Re: mechanical injection ? [Re: MegaDart] #833687 10/19/10 01:02 PM 10/19/10 01:02 PM
Joined: May 2004 Posts: 12,493 Taxes & Virus's R-US, NY Dragula I Live Here
Dragula I Live Here Joined: May 2004 Posts: 12,493 Taxes & Virus's R-US, NY	I run efi with a bug catcher, and the bigger the butterfly, the more sensative it is to throttle inputs.I would think, the same applies for the mechanical injection as well. '70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft) https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car) https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car) https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9) '66 Barracuda AWB Stretched nose Blown 440 Car in build stage '71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph https://www.youtube.com/watch?v=Znuo3jMUXTk

Re: mechanical injection ? [Re: Dragula] #833688 10/19/10 06:24 PM 10/19/10 06:24 PM
Joined: Oct 2007 Posts: 4,219 New York polyspheric master
polyspheric master Joined: Oct 2007 Posts: 4,219 New York	This true, and very annoying: the amount of air entering for a specific change in throttle disc angle is higher as the disc diameter goes up, and it makes the car "nervous". What needed is a snail-cam link for variable ratio: http://victorylibrary.com/mopar/TB-linkage.htm Boffin Emeritus

Re: mechanical injection ? [Re: mac56] #833689 10/19/10 08:32 PM 10/19/10 08:32 PM
Joined: Jan 2003 Posts: 16,941 NC 440Jim I Live Here
440Jim I Live Here Joined: Jan 2003 Posts: 16,941 NC	Quote: How big of a role does the intake and throttle body play with mechanical port injection? Good question. I was wondering if my Ron's Flying Toilet mechanical injection would benefit from a "carb" spacer on the single "carb" intake (Indy), like many carbureted systems do in my application. 6258942-Toilet_intake1004.jpg (1520 downloads) 1993 Daytona, 5.50 at 130mph (1/8) 1.19 sixty ft (PG). Link to 572 B1 - Part 1

Re: mechanical injection ? [Re: 440Jim] #833690 10/19/10 09:44 PM 10/19/10 09:44 PM
Joined: Apr 2007 Posts: 1,165 Central Ohio, USA Bigbeep super stock
Bigbeep super stock Joined: Apr 2007 Posts: 1,165 Central Ohio, USA	I was wondering that same thing just the other night.

Re: mechanical injection ? [Re: Bigbeep] #833691 10/19/10 09:58 PM 10/19/10 09:58 PM
Joined: Jun 2005 Posts: 6,257 gulfport, ms, west mi rowin4 master
rowin4 master Joined: Jun 2005 Posts: 6,257 gulfport, ms, west mi	I can only say from my buddy's 540 cube alky chevy , his car with one large toilet with a sniper intake ran just as fast as it did with two on a tunnel ram. Less tuning low hood scoop, goes like a bat out of heck. it's ok to butt heads, just don't do it with a butthead

Re: mechanical injection ? [Re: polyspheric] #833692 10/20/10 01:10 AM 10/20/10 01:10 AM
Joined: Nov 2007 Posts: 778 Sherwood park, Alberta. go green super stock
go green super stock Joined: Nov 2007 Posts: 778 Sherwood park, Alberta.	Quote: This true, and very annoying: the amount of air entering for a specific change in throttle disc angle is higher as the disc diameter goes up, and it makes the car "nervous". What needed is a snail-cam link for variable ratio: http://victorylibrary.com/mopar/TB-linkage.htm Were do you come up with this stuff ? I have raced a B1 540 CID with a 2300 cfm T2 mechanical fuel injection system and it was not a light switch throttle . It behaved quite predictable and was not any angrier than when I had a carburetor on it. The engine I have in the cuda has 2 1500 CFM throttle bodies on it with a .870 " lift cam shaft that will idle at 700 RPM . I would not hesitate to parallel park it between two BMW's , its a complete 2000 HP pussycat . Engines are not mathematical formulas and never will be , that being said that's why there are a hundred different ways to skin the proverbial cat. 6.50 @ 226 MPH 4.25 @ 186 MPH https://www.youtube.com/watch?v=YX86DHGKBo0

Re: mechanical injection ? [Re: 440Jim] #833693 10/20/10 05:33 AM 10/20/10 05:33 AM
Joined: Oct 2005 Posts: 976 ontario canada mac56 OP super stock
mac56 OP super stock Joined: Oct 2005 Posts: 976 ontario canada	Quote: Quote: How big of a role does the intake and throttle body play with mechanical port injection? Good question. I was wondering if my Ron's Flying Toilet mechanical injection would benefit from a "carb" spacer on the single "carb" intake (Indy), like many carbureted systems do in my application. That would be awesome if I could just put a 2 inch spacer under a single terminator to get a little more volume and just run a single.

Re: mechanical injection ? [Re: mac56] #833694 10/20/10 12:11 PM 10/20/10 12:11 PM
Joined: Jan 2003 Posts: 684 St. Charles, MO. S Slingshot383 mopar
Slingshot383 mopar S Joined: Jan 2003 Posts: 684 St. Charles, MO.	Since it's dry airflow, put the intake on a flow bench, and try out the different thickness spacers and see what it changes, if anything. 1994 Undercover Chassis 125" altered stack injected big block, soon blown and injected Member of The Torque and Recoil Club

Re: mechanical injection ? [Re: Slingshot383] #833695 10/20/10 12:54 PM 10/20/10 12:54 PM
Joined: Oct 2005 Posts: 976 ontario canada mac56 OP super stock
mac56 OP super stock Joined: Oct 2005 Posts: 976 ontario canada	Quote: Since it's dry airflow, put the intake on a flow bench, and try out the different thickness spacers and see what it changes, if anything. Thanks for the idea

Re: mechanical injection ? [Re: mac56] #833696 10/20/10 08:19 PM 10/20/10 08:19 PM
Joined: Jan 2003 Posts: 16,941 NC 440Jim I Live Here
440Jim I Live Here Joined: Jan 2003 Posts: 16,941 NC	If you do that, be sure and include the throttle body, not just the spacer.

Re: mechanical injection ? [Re: 440Jim] #833697 10/21/10 05:39 AM 10/21/10 05:39 AM
Joined: Oct 2005 Posts: 976 ontario canada mac56 OP super stock
mac56 OP super stock Joined: Oct 2005 Posts: 976 ontario canada	Quote: If you do that, be sure and include the throttle body, not just the spacer. Thanks Jim. Have you used the set up you pictured?

Re: mechanical injection ? [Re: mac56] #833698 10/21/10 09:53 PM 10/21/10 09:53 PM
Joined: Jan 2003 Posts: 16,941 NC 440Jim I Live Here
440Jim I Live Here Joined: Jan 2003 Posts: 16,941 NC	I have been running that Ron's Flying Toilet injection on an Indy 400-3 (Dominator flange) intake for the last 2 seasons (2009 and 2010). 1993 Daytona, 5.50 at 130mph (1/8) 1.19 sixty ft (PG). Link to 572 B1 - Part 1

Re: mechanical injection ? [Re: 440Jim] #833699 10/22/10 05:33 AM 10/22/10 05:33 AM
Joined: Oct 2005 Posts: 976 ontario canada mac56 OP super stock
mac56 OP super stock Joined: Oct 2005 Posts: 976 ontario canada	Quote: I have been running that Ron's Flying Toilet injection on an Indy 400-3 (Dominator flange) intake for the last 2 seasons (2009 and 2010). Did you find a noticeable difference when you switched from a carburetor?

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