Weber IDA base Line Jetting Recommendations???
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0000-09-0233
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From: Fort Wankel
Weber IDA base Line Jetting Recommendations???
I am looking for suggestions on where to start a base-line tune for my large-street-ported 12A with a weber IDA.
This engine would be EP legal, So I am tempted to use the required 38mm venturi, then use a 160 main and 160 airs thru F7 E-tubes.... so I can tune from there and have a really good EP set-up.
BUT ... The scope of this car is in the ability to drive to an autoX, compete, well, and drive back.
the carb now has really really large venturi... Prolly 44's.
I don't really care if I need to buy new (costly) chokes and other various tuning parts. I need it to be right, no matter what.
Any advice is greatly appreciated
This engine would be EP legal, So I am tempted to use the required 38mm venturi, then use a 160 main and 160 airs thru F7 E-tubes.... so I can tune from there and have a really good EP set-up.
BUT ... The scope of this car is in the ability to drive to an autoX, compete, well, and drive back.
the carb now has really really large venturi... Prolly 44's.
I don't really care if I need to buy new (costly) chokes and other various tuning parts. I need it to be right, no matter what.
Any advice is greatly appreciated
i have no idea, but i'm very interested in this because i'm planning to convert to IDA as soon as i can.
the first names that come to mind are Wackyrotary and Revhed. if this thread does not provide the responses you seek, then you might consider PM-ing them.
1
the first names that come to mind are Wackyrotary and Revhed. if this thread does not provide the responses you seek, then you might consider PM-ing them.
1
Banned. I got OWNED!!!
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From: chatsworth,Ca.
well you need to use f11 e-tubes, and if your motor is ported your going to use more like a 190- 200 main jet.. since your limited to the 38mm venturi, you will need to go with a large air correction jet, in the 180- 190 range..
Eats, Sleeps, Dreams Rotary
Joined: Jul 2004
Posts: 3,247
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From: Allentown, PA - Paterson, NJ
Originally Posted by 680RWHP12A
thats a nice pic. , but not much help to these guys!!LOL
p.s. your epslion's are nice!! 3pc. ,,, mmmmmm
go eat some cheese
p.s. your epslion's are nice!! 3pc. ,,, mmmmmm
go eat some cheese
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Originally Posted by SS124A
I am looking for suggestions on where to start a base-line tune for my large-street-ported 12A with a weber IDA.
This engine would be EP legal, So I am tempted to use the required 38mm venturi, then use a 160 main and 160 airs thru F7 E-tubes.... so I can tune from there and have a really good EP set-up.
BUT ... The scope of this car is in the ability to drive to an autoX, compete, well, and drive back.
the carb now has really really large venturi... Prolly 44's.
I don't really care if I need to buy new (costly) chokes and other various tuning parts. I need it to be right, no matter what.
Any advice is greatly appreciated
This engine would be EP legal, So I am tempted to use the required 38mm venturi, then use a 160 main and 160 airs thru F7 E-tubes.... so I can tune from there and have a really good EP set-up.
BUT ... The scope of this car is in the ability to drive to an autoX, compete, well, and drive back.
the carb now has really really large venturi... Prolly 44's.
I don't really care if I need to buy new (costly) chokes and other various tuning parts. I need it to be right, no matter what.
Any advice is greatly appreciated
43 venturies
150 air
220 main
75 idle jet
modified fuel inlet and junk that screen filter inside
add 1 more progression hole on each side (should have 3 total progression holes)
modiify the fuel bowl for omp.
and for more peace of mind, knock out that wall next to the fuel bowl for extra ounce of fuel.
Originally Posted by 680RWHP12A
well you need to use f11 e-tubes, and if your motor is ported your going to use more like a 190- 200 main jet.. since your limited to the 38mm venturi, you will need to go with a large air correction jet, in the 180- 190 range..
Robert knows these things.
Whack 'em and stack 'em
Joined: Mar 2003
Posts: 1,373
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From: Clarksburg/Bridgeport WV- North Central Appalachia
Originally Posted by wackyracer
I jetted my bro's big *** 12-A streetport thats before he blew the motor due to cracked oil line.
43 venturies
150 air
220 main
75 idle jet
modified fuel inlet and junk that screen filter inside
add 1 more progression hole on each side (should have 3 total progression holes)
modiify the fuel bowl for omp.
and for more peace of mind, knock out that wall next to the fuel bowl for extra ounce of fuel.
43 venturies
150 air
220 main
75 idle jet
modified fuel inlet and junk that screen filter inside
add 1 more progression hole on each side (should have 3 total progression holes)
modiify the fuel bowl for omp.
and for more peace of mind, knock out that wall next to the fuel bowl for extra ounce of fuel.
Originally Posted by Tom
How do you add a progression hole? A really tiny drill bit?
Last edited by Siraniko; Mar 25, 2005 at 09:33 AM.
I love Buttsex!!!
Joined: Mar 2005
Posts: 94
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From: Michigan
Originally Posted by wackyracer
I jetted my bro's big *** 12-A streetport thats before he blew the motor due to cracked oil line.
43 venturies
150 air
220 main
75 idle jet
modified fuel inlet and junk that screen filter inside
add 1 more progression hole on each side (should have 3 total progression holes)
modiify the fuel bowl for omp.
and for more peace of mind, knock out that wall next to the fuel bowl for extra ounce of fuel.
43 venturies
150 air
220 main
75 idle jet
modified fuel inlet and junk that screen filter inside
add 1 more progression hole on each side (should have 3 total progression holes)
modiify the fuel bowl for omp.
and for more peace of mind, knock out that wall next to the fuel bowl for extra ounce of fuel.
I am assuming F11 E-tubes here???
Originally Posted by Dayna
I have 42mm chokes now, but close enough..
I am assuming F11 E-tubes here???
I am assuming F11 E-tubes here???
f11 it is. heck, I have run my car without a main jet/venturies. good on top end but sucky on low end.
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