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Tunnel ram / carb position question #327244
05/24/09 05:41 PM
05/24/09 05:41 PM
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TrWaters Offline OP
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Picture this. Tunnel ram intake with a single Dominator carb. The questions are:

Is there any known advantage to having the carb mounted straight ahead, on a slight angle, or sideways?

Is there any known advantage to having the carb mounted centered front to back, slightly towards the front, or slightly to the rear?

I realize there are many variables. General answers are what I am looking for.

Thanks.


TR Waters
Re: Tunnel ram / carb position question [Re: TrWaters] #327245
05/25/09 02:35 AM
05/25/09 02:35 AM
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Bend,OR USA
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Cab_Burge Offline
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I would replace that top with a dual top so the carbs align over the ports like there suppose to


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Tunnel ram / carb position question [Re: Cab_Burge] #327246
05/25/09 09:53 AM
05/25/09 09:53 AM
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acworth / N. georgia - south e...
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ive got a few tunnel rams..
singles and daul carb..
first impression..the single carb...just looks wrong..
the spread between the rear 4 and the front 4 just looks too far apart for a single carb to work efficiently...
but its just an observation...?
cheapst.


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Re: Tunnel ram / carb position question [Re: cheapstreetdustr] #327247
05/25/09 01:28 PM
05/25/09 01:28 PM
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Two replies, neither of which have anything to do with the question that was asked. Thanks anyway.


TR Waters
Post deleted by Defbob [Re: TrWaters] #327248
05/25/09 03:18 PM
05/25/09 03:18 PM

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Re: Tunnel ram / carb position question [Re: TrWaters] #327249
05/25/09 04:51 PM
05/25/09 04:51 PM
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Quote:

Two replies, neither of which have anything to do with the question that was asked. Thanks anyway.


i'm still not sure if this has anything to do with the question , but you can't put one carb anywhere, or turn it anyway to make it work efficiently on a t/r. i've been running t-rams for 25-30yrs. they were meant for 2 carbs.

Re: Tunnel ram / carb position question [Re: tjmarcus1] #327250
05/25/09 05:12 PM
05/25/09 05:12 PM
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nielsville, minn.
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I know this isn't the answer you want but every dyno sheet I've seen with a single 4 on a tunnel ram gave up a ton of power compared to a 2x4 setup. Dave

Re: Tunnel ram / carb position question #327251
05/25/09 07:54 PM
05/25/09 07:54 PM
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twist to place carbs more inline with the ports

Yup - the port offset is 1 rod width or about 1", and the closer the top is to the ports vertically, and the smaller the plenum volume is, the more important it should be.
I wouldn't be surprised if some had anti-reversion stubs underneath that flared out asymmetrically to help this...

I have a feeling that high G cars may need the carb bumped forward a tiny bit to allow for the accel moving the fuel toward the back ports.


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Re: Tunnel ram / carb position question [Re: polyspheric] #327252
05/26/09 09:32 PM
05/26/09 09:32 PM
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I dont dispute the fact that 2 may work better than one. I was just interested in the placement if one carb was used.

This particular top is a Hogan's , and it does have diversion underneath.

Thanks.


TR Waters






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