A460 tunnel ram

I have thought about this a while back but didn't act on it. Today I pulled the intake because of the water leak issue and the subject crossed my mind again. I have been running the short runner newer style on my 605 but I wonder how the old longer runner intake would do. it'll have the same MFI enderle setup. It makes its power now from 6800-7800 and I'd be ok with more midrange and little less rpm. Opinions

cool40 wrote:I have thought about this a while back but didn't act on it. Today I pulled the intake because of the water leak issue and the subject crossed my mind again. I have been running the short runner newer style on my 605 but I wonder how the old longer runner intake would do. it'll have the same MFI enderle setup. It makes its power now from 6800-7800 and I'd be ok with more midrange and little less rpm. Opinions

With that size engine it would have more torque below about 5,700 to 5,900 RPM and a little less above it.  Therefore, peak power would probably happen about 300 RPM sooner; (and because it is at a lower RPM there would not be as much total peak horsepower).

Personally, I think I would try a smaller primary tube header with a 4" collector of the correct length.

Like this one?



https://www.429-460.com/t24428-tfs-tunnel-ram-with-tall-deck-adapter-just-blasted-and-cleaned-lower-price

68formalGT wrote:Like this one?



https://www.429-460.com/t24428-tfs-tunnel-ram-with-tall-deck-adapter-just-blasted-and-cleaned-lower-price

yep just like it but it has an enderle adapter top.

rmcomprandy wrote:

cool40 wrote:I have thought about this a while back but didn't act on it. Today I pulled the intake because of the water leak issue and the subject crossed my mind again. I have been running the short runner newer style on my 605 but I wonder how the old longer runner intake would do. it'll have the same MFI enderle setup. It makes its power now from 6800-7800 and I'd be ok with more midrange and little less rpm. Opinions

With that size engine it would have more torque below about 5,700 to 5,900 RPM and a little less above it.  Therefore, peak power would probably happen about 300 RPM sooner; (and because it is at a lower RPM there would not be as much total peak horsepower).

Personally, I think I would try a smaller primary tube header with a 4" collector of the correct length.

I have regretted the 2.5" headers ever since the first time I heard it run,fender exits all together. IMO it sounds like $hit unless its hammered.

cool40 wrote:

rmcomprandy wrote:

cool40 wrote:I have thought about this a while back but didn't act on it. Today I pulled the intake because of the water leak issue and the subject crossed my mind again. I have been running the short runner newer style on my 605 but I wonder how the old longer runner intake would do. it'll have the same MFI enderle setup. It makes its power now from 6800-7800 and I'd be ok with more midrange and little less rpm. Opinions

With that size engine it would have more torque below about 5,700 to 5,900 RPM and a little less above it.  Therefore, peak power would probably happen about 300 RPM sooner; (and because it is at a lower RPM there would not be as much total peak horsepower).

Personally, I think I would try a smaller primary tube header with a 4" collector of the correct length.

I have regretted the 2.5" headers ever since the first time I heard it run,fender exits all together. IMO it sounds like $hit unless its hammered.

what size header do you think would be best performance wise, as I am in the proccess of building a 604, I have the old style tunnel ram also with the TF 340 head combo, or would the TF manifold be a better combo, running 7200 ish max.. ?

7200 rpm I'd go with 2 1/4 and longish tubes all combos aren't the same but for reference I'm shifting @7800 with this short runner TR.

What kind of power/torque do you make?

68formalGT wrote:What kind of power/torque do you make?

no dyno numbers but based on et and weight it's making 1100 hp or more.