down draft or side draft?
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down draft or side draft?
I have 2 intakes for a very heavily bridgeported 13b motor. Ones a side draft intake and the other is an intake for a down draft. I have 2 carbs I have been thinking about getting. the first carb is a 51ida down draft the other is a 55 side draft carb. Which carb should I get? Any advice will be appreciated
#5
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Depending on the manifold, the sidedraft manifold may have better flow.
The flat "Lake Cities" manifold is best although for your situation it will require a lot of porting. The IDA manifold is next best.
The flat "Lake Cities" manifold is best although for your situation it will require a lot of porting. The IDA manifold is next best.
#6
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I remember my friends 13B bridgeport RX3 back in Melbourne around 5-6 years ago that switched from a 51 IDA to a 50 DCO side with a wrap around manifold ,well after it was tuned at Selectmaz it was a way better car to drive on the street (tamed) smoother and had more torque form idle to to redline ( Izzy at Selectmaz said the manifold contributed for this as well) than with the IDA better on the Highway as well, I found out that he later switched to a 55 DCO and made a lot more power up high than with the previous carb set ups.
I hope this helps
I hope this helps
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I decided
I am going with the 55 dco sp side draft. They have them brand new on the weber website for 499. I just got and 1969 r100 and I have no Idea if the down draft will fit. The car is so tiny Plus If I can sneak some torque in and lower rpm thats a plus too. I will driivng it slow until I learn to drive on the right hand side lol
#10
Waffles - hmmm good
iTrader: (1)
Yeah the longer intake runners of the wrap around side draft intakes
will give you better torque down low so drivability might be a bit better
especially for a big BP like yours.
will give you better torque down low so drivability might be a bit better
especially for a big BP like yours.
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update!!!
Jeezes this heres a couple pics of 55 dco carb I got from weber north america.
Nice large inner diameter. I can almost cram in a can of pop or soda
(depending were you live). I will be proting the hell out of the intake before I
mount it then start tuning it. Thanx for the advice
Nice large inner diameter. I can almost cram in a can of pop or soda
(depending were you live). I will be proting the hell out of the intake before I
mount it then start tuning it. Thanx for the advice
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