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BBC tunnel ram

General engine tech -- Drag Racing to Circle Track

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prairiehotrodder
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BBC tunnel ram

Post by prairiehotrodder » Tue Oct 29, 2019 3:11 pm

have you dyno tested the Edelbrock #7085 tunnel ram against any other tunnel rams ? I'm using the old Weiand #1985 rectangle port and i read somewhere that Edelbrock claims their new version (made in 2013) #7085 is worth 40 - 50 hp over other t-rams (didn't say which ones). This is all pretty vague so i thought i'd ask the speed talk world. One thing i don't like about the 7085 is it only has a top for dominators. I'm liking my 4150 base 750 carbs even though i would like to try bigger carbs. Maybe 850 or 950 but not ready to make the jump to dominators. I'd have to use adapters or build my own top to run 4150 carbs on the 7085 edelbrock.
Brian

Edit : they claim it made 47 hp over the old victor 2-R and 10 hp over the competition. So i guess it depends which "competition" intakes they were talking about.
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SchmidtMotorWorks
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Re: BBC tunnel ram

Post by SchmidtMotorWorks » Tue Oct 29, 2019 4:11 pm

It depends on your application.
Take a look at the Profiler manifold.
http://www.schmidtmotorworks.com Prototypes, Tooling, Molds.

F-BIRD'88
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Re: BBC tunnel ram

Post by F-BIRD'88 » Tue Oct 29, 2019 9:41 pm

If you think that your carbs are too small try adding plenum volume and carb height.
( carb spacers) You could also build your own custom plenum for your current Weiand tunnel ram.

F-BIRD'88
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Re: BBC tunnel ram

Post by F-BIRD'88 » Tue Oct 29, 2019 9:46 pm

Joe Sherman was a expert at this stuff.. With the big full race tunnel rams he really spin the engines up high to get the power gain. Not sure you want to go there. Takes top parts and maintenance to go there.
$$$$

WeingartnerRacing
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Re: BBC tunnel ram

Post by WeingartnerRacing » Tue Oct 29, 2019 11:49 pm

I used one on my 565bbc it made 1118hp@7500rpm
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Eric Weingartner
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www.wengines.com

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Re: BBC tunnel ram

Post by Old School » Wed Oct 30, 2019 10:01 am

WeingartnerRacing wrote:
Tue Oct 29, 2019 11:49 pm
I used one on my 565bbc it made 1118hp@7500rpm
Do you have any et -mph on the on the car with the 565? Very nice engine.

WeingartnerRacing
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Re: BBC tunnel ram

Post by WeingartnerRacing » Wed Oct 30, 2019 10:06 am

Old School wrote:
Wed Oct 30, 2019 10:01 am
WeingartnerRacing wrote:
Tue Oct 29, 2019 11:49 pm
I used one on my 565bbc it made 1118hp@7500rpm
Do you have any et -mph on the on the car with the 565? Very nice engine.
Not yet still finishing it. Driveshaft should be here today. Hopefully in March.
Eric Weingartner
Weingartner Racing LLC
918-520-3480
www.wengines.com

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Re: BBC tunnel ram

Post by Old School » Wed Oct 30, 2019 2:05 pm

WeingartnerRacing wrote:
Wed Oct 30, 2019 10:06 am
Old School wrote:
Wed Oct 30, 2019 10:01 am
WeingartnerRacing wrote:
Tue Oct 29, 2019 11:49 pm
I used one on my 565bbc it made 1118hp@7500rpm
Do you have any et -mph on the on the car with the 565? Very nice engine.
Not yet still finishing it. Driveshaft should be here today. Hopefully in March.
Thanks

engineguyBill
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Re: BBC tunnel ram

Post by engineguyBill » Sat Nov 02, 2019 2:23 pm

As far as cast tunnel rams are concerned, I have had excellent results with the Dart product.
Bill

SAE Member (29+ years)
ASE Master Certified Engine Machinist (+ two otherASE Master Certifications)
AERA Certified Professional Engine Machinist

"Do what you can, with what you have, where you are."
- Theodore Roosevelt

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