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Re: mechanical injection ?
[Re: mac56]
#833683
10/19/10 12:47 PM
10/19/10 12:47 PM
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Joined: Sep 2003
Posts: 2,008
Sweet Home Alabama
MRMOPAR622
top fuel
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top fuel
Joined: Sep 2003
Posts: 2,008
Sweet Home Alabama
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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"
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Re: mechanical injection ?
[Re: MRMOPAR622]
#833684
10/19/10 12:52 PM
10/19/10 12:52 PM
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Joined: Sep 2003
Posts: 2,008
Sweet Home Alabama
MRMOPAR622
top fuel
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top fuel
Joined: Sep 2003
Posts: 2,008
Sweet Home Alabama
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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"
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Re: mechanical injection ?
[Re: MRMOPAR622]
#833685
10/19/10 01:12 PM
10/19/10 01:12 PM
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Joined: Jan 2003
Posts: 684
St. Charles, MO.
Slingshot383
mopar
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mopar
Joined: Jan 2003
Posts: 684
St. Charles, MO.
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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
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Re: mechanical injection ?
[Re: mac56]
#833686
10/19/10 01:12 PM
10/19/10 01:12 PM
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Joined: Jan 2003
Posts: 6,314
The Swamp
MegaDart
master
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master
Joined: Jan 2003
Posts: 6,314
The Swamp
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Quote:
Is that a Hat on top of your tunnelram Wayne?
Yes it was an Enderle bug catcher
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Re: mechanical injection ?
[Re: Dragula]
#833688
10/19/10 07:24 PM
10/19/10 07:24 PM
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Joined: Oct 2007
Posts: 4,213
New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,213
New York
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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
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Re: mechanical injection ?
[Re: mac56]
#833689
10/19/10 09:32 PM
10/19/10 09:32 PM
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Joined: Jan 2003
Posts: 16,934
NC
440Jim
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,934
NC
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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.
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Re: mechanical injection ?
[Re: polyspheric]
#833692
10/20/10 02:10 AM
10/20/10 02:10 AM
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Joined: Nov 2007
Posts: 778
Sherwood park, Alberta.
go green
super stock
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super stock
Joined: Nov 2007
Posts: 778
Sherwood park, Alberta.
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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.
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Re: mechanical injection ?
[Re: 440Jim]
#833693
10/20/10 06:33 AM
10/20/10 06:33 AM
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Joined: Oct 2005
Posts: 976
ontario canada
mac56
OP
super stock
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OP
super stock
Joined: Oct 2005
Posts: 976
ontario canada
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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.
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Re: mechanical injection ?
[Re: mac56]
#833694
10/20/10 01:11 PM
10/20/10 01:11 PM
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Joined: Jan 2003
Posts: 684
St. Charles, MO.
Slingshot383
mopar
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mopar
Joined: Jan 2003
Posts: 684
St. Charles, MO.
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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
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Re: mechanical injection ?
[Re: Slingshot383]
#833695
10/20/10 01:54 PM
10/20/10 01:54 PM
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Joined: Oct 2005
Posts: 976
ontario canada
mac56
OP
super stock
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OP
super stock
Joined: Oct 2005
Posts: 976
ontario canada
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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
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Re: mechanical injection ?
[Re: 440Jim]
#833697
10/21/10 06:39 AM
10/21/10 06:39 AM
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Joined: Oct 2005
Posts: 976
ontario canada
mac56
OP
super stock
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OP
super stock
Joined: Oct 2005
Posts: 976
ontario canada
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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?
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Re: mechanical injection ?
[Re: 440Jim]
#833699
10/22/10 06:33 AM
10/22/10 06:33 AM
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Joined: Oct 2005
Posts: 976
ontario canada
mac56
OP
super stock
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OP
super stock
Joined: Oct 2005
Posts: 976
ontario canada
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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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