I Got It!! Its Here!! My New Weber!!
03-07-03, 02:53 PM
#27
Originally posted by thorin
since the webber is a 2 bbl carb, that means it doesnt have secondaries, right? is there an advantage to this? </noob>
since the webber is a 2 bbl carb, that means it doesnt have secondaries, right? is there an advantage to this? </noob>
03-08-03, 06:28 AM
#31
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I spoke w/ Rob yesterday about my own weber setup, and he recommended that the fuel inlet hole on the stock 45 DCOE be drilled out to a larger size for my stock-port 12A. I've never heard of that being mentioned on this forum before... Is it really necessary?
03-09-03, 03:47 AM
#35
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A Weber 45 will perform better than a stock Nikki once the other modifications require a high airflow. However you can modify the Nikki to provide the same performance as the 45 at less cost. Going with even higher modifications requires greater airflow beyond both carbs, this is where the Weber IDA 48 or larger becomes popular.
The concept of a 4 barrel is to have primaries which provide economy at low revs, then secondaries which kick in later to give more power at the middle and top end. They can be difficult to set up initially but rarely go off tune. Some times there is a flat spot at the transition point. A two barrel as generally set up is great for top end power but is lumpy at low revs and more difficult to start in cold weather. Being a high performance carb they have a greater range of tuning options for very fine tuning.
In simple terms a 4 barrel provides a good compromise over a wide rav range, a typical two barrel provides better tuning/performance over a smaller range typically at the at the top end. This is why they are selected by people interested in topend power over a small rev range say 5000rpm plus.
The concept of a 4 barrel is to have primaries which provide economy at low revs, then secondaries which kick in later to give more power at the middle and top end. They can be difficult to set up initially but rarely go off tune. Some times there is a flat spot at the transition point. A two barrel as generally set up is great for top end power but is lumpy at low revs and more difficult to start in cold weather. Being a high performance carb they have a greater range of tuning options for very fine tuning.
In simple terms a 4 barrel provides a good compromise over a wide rav range, a typical two barrel provides better tuning/performance over a smaller range typically at the at the top end. This is why they are selected by people interested in topend power over a small rev range say 5000rpm plus.
Last edited by PaulFitzwarryne; 03-09-03 at 03:57 AM.
. Wish me luck!!
03-10-03, 01:52 PM
#41
Ok well the operation was a success, and I think that shes gonna make it 
.
I got it started, and took it for a few spins, and its pretty cool sounding. I need to adjust it and get it tuned, but its pretty sweet, and feels the same as the Nikki right out of the box with the stock fuel pump pushing it, and a bad bog about 4K RPMs that I need to source out. Anyway, it should be fun. Anyone have any good tips for tuning?
~T.J.
.I got it started, and took it for a few spins, and its pretty cool sounding. I need to adjust it and get it tuned, but its pretty sweet, and feels the same as the Nikki right out of the box with the stock fuel pump pushing it, and a bad bog about 4K RPMs that I need to source out. Anyway, it should be fun
. Anyone have any good tips for tuning?~T.J.
.
03-10-03, 11:52 PM
#47
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glad to hear TJ
Im also glad you didnt beat that poor kid up also, ahhahaha
And that you got your carb, even if you had to steal it off of somone elses porch!
I also was informed, by the great Sensei, that I need a fuel pressure regulatator. Since the Facet is pushing to hard..... I brought out my Mallory regulator, and appearently its on that you can run boost with, so im happy about that!!!!! Im thinking about grabbing a pressure gauge and hooking it up, but first I have to confirm that the purolator regulator read correctly...... I wonder if there is such thing as an in line regulator that i could temporily hook to Mar3's carb to see the exact pressure i need for my nikki(since he has dyno'ed it and got the correct pressure needed for the nikki he was running, so i figure i would be a copy cat) And then use it with my setup, will see!!!
What is a good gauge that reads properly?
Thanks, Laterz, Andrew
Im also glad you didnt beat that poor kid up also, ahhahaha
And that you got your carb, even if you had to steal it off of somone elses porch!
I also was informed, by the great Sensei, that I need a fuel pressure regulatator. Since the Facet is pushing to hard..... I brought out my Mallory regulator, and appearently its on that you can run boost with, so im happy about that!!!!! Im thinking about grabbing a pressure gauge and hooking it up, but first I have to confirm that the purolator regulator read correctly...... I wonder if there is such thing as an in line regulator that i could temporily hook to Mar3's carb to see the exact pressure i need for my nikki(since he has dyno'ed it and got the correct pressure needed for the nikki he was running, so i figure i would be a copy cat) And then use it with my setup, will see!!!
What is a good gauge that reads properly?
Thanks, Laterz, Andrew
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