Dec 16, 2008, 6:27 am · #1
BTW where are you located? Please update your location in your profile.
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Dec 16, 2008, 7:54 am · #2
Didn't want to read the entire thread, but if you're looking for response, why not do an ITB system instead and keep the injection? (IMG:style_emoticons/default/tongue.gif)
Dec 18, 2008, 1:57 am · #3
ITBs would require more work with the computer, than it would be to just fab up a carb adapter and toss on a set of duals.
BTW, IMO, a pair of dual mikuni carbs and a Ford EDIS with MegaJolt+ is the best set up, VERY versatile! It's pretty cool, otherwise if you have a vacuum advance CA20 distributor on hand, and an MSD box, that would be pretty sweet too.
Dec 18, 2008, 2:31 am · #4
kas are still cheap, but, they arent as original as the carbed 20e and it would bump you up into street mod. Also, if you are going to do that and be competitive in street mod you would need a turbo (with good throttle response, and low lag), and heavy suspension mods. With the 20e you can just do what your doing, and do some suspension mods and you should be competitive in street prepared. I was in the same class as my brothers sr5 ae86 and i spanked him with my bone stock 20e...and i think he had his coilovers on the front of his car at the time. I chose tho to go 18det and run street mod because the 18det is fairly light and can make good hp and be responsive...but thats just my 2 cents. Good luck!
Dec 18, 2008, 5:00 am · #5
CA20DET! OR CA20DE! DO ET!
This post has been edited by jeffwins24: Dec 18 2008, 05:01 AM
Dec 19, 2008, 2:51 am · #6
as far as ign, i'd say just do standalone, and try to use the sensors you ucrrently have.
As far as carbs...eh. Im not a fan, but more power to you if you can make it work well. I have a formula for determing the exact airflow needs of an engine based on design RPM, CID, and Volumetric Efficieny.
it works like this..
(Design RPM x CID x VE)/(3456) = Engine CFM Requirement.
Design RPM is the RPM at which you either are looking to make the most power, OR the point at which the engine will run fairly constantly.
CID = Cubic Inch Diameter
VE = Volumetric efficiency (%). Basically, its the fill percentage of the cylinder. 100% is theoretical max (the volume of the cylinder). Typical engines run about 80%..BUT, if you are building a system, just use 100% (or 1). Running a tad on the rich side isn't gonna hurt.
3456 is derived from something i can't remember.. (its 1728 x2)
SO, lets say you wanna make your peak power at 5000 RPM.
5000 x 122 (ca20e) x 1 / 3456 = 176.5 CFM. Yea. Thats for the WHOLE MOTOR. so Divided by 4 (4 Individual weber's) = ~44 CFM per cylinder.
just some food for thought, in case you havent heard of this.
Dec 19, 2008, 3:25 am · #7
Jsvob03 @ Dec 19 2008, 02:51 AM
as far as ign, i'd say just do standalone, and try to use the sensors you ucrrently have.
As far as carbs...eh. Im not a fan, but more power to you if you can make it work well. I have a formula for determing the exact airflow needs of an engine based on design RPM, CID, and Volumetric Efficieny.
it works like this..
(Design RPM x CID x VE)/(3456) = Engine CFM Requirement.
Design RPM is the RPM at which you either are looking to make the most power, OR the point at which the engine will run fairly constantly.
CID = Cubic Inch Diameter
VE = Volumetric efficiency (%). Basically, its the fill percentage of the cylinder. 100% is theoretical max (the volume of the cylinder). Typical engines run about 80%..BUT, if you are building a system, just use 100% (or 1). Running a tad on the rich side isn't gonna hurt.
3456 is derived from something i can't remember.. (its 1728 x2)
SO, lets say you wanna make your peak power at 5000 RPM.
5000 x 122 (ca20e) x 1 / 3456 = 176.5 CFM. Yea. Thats for the WHOLE MOTOR. so Divided by 4 (4 Individual weber's) = ~44 CFM per cylinder.
just some food for thought, in case you havent heard of this.
thats good info....should be stickied for reference.