A460 Intake Recommendation -- Tunnel Ram vs. Single Plane

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A460 Intake Recommendation -- Tunnel Ram vs. Single Plane

Post  96Mustang460cid on June 17th 2010, 8:52 am

I am curious which intake you guys/gals recommend.

-- 547 bbf
-- max RPM < 6,500
-- A460 heads (as-cast)
-- turbocharged
-- Pump gas, street driven (regularly)

I am not sure what the runner length is for the two intakes. It seems like the TR would have longer runners and, therefore, work a little better at the lower RPMs. Hood clearance is not an issue. If I go TR, I'll use the pent roof, single carb top for it.

Have a good day!
Michael
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Re: A460 Intake Recommendation -- Tunnel Ram vs. Single Plane

Post  IDT-572 on June 17th 2010, 12:10 pm

The A head ram has short runners for a tunnel ram. I have been measuring different intakes here lately. The old TFS tunnel has long runners.

Charlie did an a-b test between the two and saw good torque out of the older one and it held it's own in the hp department at it's peak rpm.

If it were me I would run the single plane............. JMHO

Plumbing simplicity........ would be better(easier).
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Re: A460 Intake Recommendation -- Tunnel Ram vs. Single Plane

Post  dfree383 on June 17th 2010, 12:46 pm

With a Turbo Charger I'd Stick with the singe 4 intake.
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Re: A460 Intake Recommendation -- Tunnel Ram vs. Single Plane

Post  Lem Evans on June 17th 2010, 3:02 pm

1 x 4

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Re: A460 Intake Recommendation -- Tunnel Ram vs. Single Plane

Post  cubicgator on June 17th 2010, 6:53 pm

My combo loves the tfs tunnel ram base with a box upper, we rev 7300 rpm but on the dyno it makes stupid power all over. Its a 533 with a 4.3 stroke single 106 turbo. I had a good welder weld the box directly to tunnel ram and rear facing t/b. The tunnel ram injector pads drilled out for efi injectors, also had 2 pads on side to bolt fuel rails to already embosed. On a tune i know we could run pump gas we can make 1200 rwhp at 13-14 lbs.

With only 14 lbs boost timing turned down 5 degree's from race setting on crappy track on radilals pedaled 3 times on data log went 172 mph at 3500lbs last weekend. ye ha

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Re: A460 Intake Recommendation -- Tunnel Ram vs. Single Plane

Post  valleydawg on June 22nd 2010, 1:04 pm

I have always just ran one carb for the simplicity of the set up. I don’t need to much to work on and the simpler the better for me. 2X4’s make more power and if I was all motor I might go that route but I have extra power with the change of a jet…you have the turbo.
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Re: A460 Intake Recommendation -- Tunnel Ram vs. Single Plane

Post  96Mustang460cid on June 22nd 2010, 8:55 pm

96Mustang460cid wrote:If I go TR, I'll use the pent roof, single carb top for it.

Guys, thanks for your input!

Just to be clear, I am not interested in a 2x4 setup. Under boost, a single 4150 carb is more than adequate. Besides, I'll probably have my hands full with just one carb Very Happy!

Have a good day!
Michael
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Re: A460 Intake Recommendation -- Tunnel Ram vs. Single Plane

Post  Outlaw5.0 on June 25th 2010, 8:17 pm

Use the single 4 barrel. The tunnel ram with the pent roof top will be really tall after you put the elbo on it. I to had this same decision for my E-headed 500 c.i.d procharged engine. I ended up having the TFS A-460 single 4 barrel modified to fit my head/block combo. It would have cost the same for a custom sheetmetal intake, but the single 4 barrel opens up more race opportunites.


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Re: A460 Intake Recommendation -- Tunnel Ram vs. Single Plane

Post  Lem Evans on June 25th 2010, 8:25 pm

Lem Evans wrote:1 x 4
....................

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