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Hey guys,
I currently have a Racing Beat and custom Holley (Weber power plates on the primaries) set up on my 6port 13b. I like the power it makes. Pulls like crazy but, there is the cutting out on hard left turns. It's driving me nuts when i go play in the canyons so...... Thinking about going weber now. Can any one point me to a good comparison thread or quickly tell me the merits of the IDA vs the DCOE carb set up? Which makes more power? Are there pros and cons to each? And i guess even more important, do they make as much power as the Holley? I basically liek to play in the so cal canyons. Not looking for a drag car or anything. This motor is in a Datsun 510 with true dual exhaust. Mild porting on the engine. (unfortunately by previous owner so i can not say exactly how much porting) Thanks, Craig |
Thats the problem with down draft carbs.If you like a straight line car then a holley is awesome but if you love cornering like alot do then yah the sidedraft is the only way to go.I had a Dellorto 48 DHLA before my 45 DCOE on my stock port 13b 6-port and both have been good carbs.I want to try a downdraft setup one day with a fogger kit.I like long straight sections of road https://www.nopistons.com/forums/pub...IR#>/smile.png. Do a search i think theres threads either here or in the first gen section on sidedraft vs. downdraft.
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I would mod the Holley to withstand corners...
You can make a Holley withstand extreme angles in 4x4s and rock crawlers. They even make Holleys you can use in a boat. Why cant you use yours to take a corner? |
You can make a Holley withstand extreme angles in 4x4s and rock crawlers. They even make Holleys you can use in a boat. Why cant you use yours to take a corner?
[/quote] I think alot of it has to do with the fact that the Holley is rotated 90 degrees on a Rotary. I have the cathedral bowls and the race center pivot floats and the jet extensions. I just think the Gs are just too much for it in a hard corner. At least that's what i have read and experienced. I'll look into the sidedraft vs downdraft. thanks guys. C |
Any chance that your fuel pressure is too high? I love my Sterling Nikki and highly recommend them. Good luck!
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Originally Posted by giarcpnw' post='830712' date='Jul 31 2006, 10:50 AM
Hey guys, I currently have a Racing Beat and custom Holley (Weber power plates on the primaries) set up on my 6port 13b. I like the power it makes. Pulls like crazy but, there is the cutting out on hard left turns. It's driving me nuts when i go play in the canyons so...... Thinking about going weber now. Can any one point me to a good comparison thread or quickly tell me the merits of the IDA vs the DCOE carb set up? Which makes more power? Are there pros and cons to each? And i guess even more important, do they make as much power as the Holley? I basically liek to play in the so cal canyons. Not looking for a drag car or anything. This motor is in a Datsun 510 with true dual exhaust. Mild porting on the engine. (unfortunately by previous owner so i can not say exactly how much porting) Thanks, Craig A few years back we had that same problem with the stock 4 barrel in the RX-2 in the RS series. We had to run the carb that came on the car. I forgot if it was lefts or rights but the engine would shut off in a hard turn like the ignition had been cut. It then would not restart for a few minutes. The bowl vent was just a short tube that ended in the center of the air horn and was only an inch above the fuel level in the float bowl. So in a one G turn where the fuel surface would be at a 45 degree angle in the bowl, the fuel would pour out of the vent, and flood the engine. The fix was to add a bowl vent tube to the center of each float bowl and to extend all three tubes up 2" into the air cleaner. Also the Mazda needle was a 2 piece deal with a spring inside it. That was made solid with the plastic tube from the inside of a Bic pen. Car ran fine in all corners and under hard braking. Lynn E. Hanover |
Originally Posted by Lynn E. Hanover' post='833289' date='Aug 18 2006, 08:46 AM
A few years back we had that same problem with the stock 4 barrel in the RX-2 in the RS series. We had to run the carb that came on the car. I forgot if it was lefts or rights but the engine would shut off in a hard turn like the ignition had been cut. It then would not restart for a few minutes. The bowl vent was just a short tube that ended in the center of the air horn and was only an inch above the fuel level in the float bowl. So in a one G turn where the fuel surface would be at a 45 degree angle in the bowl, the fuel would pour out of the vent, and flood the engine. The fix was to add a bowl vent tube to the center of each float bowl and to extend all three tubes up 2" into the air cleaner. Also the Mazda needle was a 2 piece deal with a spring inside it. That was made solid with the plastic tube from the inside of a Bic pen. Car ran fine in all corners and under hard braking. Lynn E. Hanover In extreme cases, you can connect a tube from both bowl vents with a series of holes drilled across the top. This keeps any fuel slosh from going into the venturis, but still allows the bowls to vent. |
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