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Old School Tunnel Ram on a BIG 540+ Inch HEMI #1791933 03/30/15 06:51 PM 03/30/15 06:51 PM
Joined: Jan 2003 Posts: 9,677 Lima, Peru domingo OP EL Master
domingo OP EL Master Joined: Jan 2003 Posts: 9,677 Lima, Peru	Hi! I always loved the look of a tunnel ram and twin dominators on a HEMI. I am about to build a 540+ inch HEMi with CNC ported Stage V heads and a big solid roller cam. Would using an old school tunnel RAM hurt power? How bad? What about the old Pro Stock Tunnel Rams??? Are they any different than the ones the pop up for sale all the time on ebay??? How do they differ and would an old Pro Stock tunnel ram work good? What about the carbs? Now you can get 750 cfm dominators... 8475602-steveliskhemi.jpg (579 downloads)

Re: Old School Tunnel Ram on a BIG 540+ Inch HEMI [Re: domingo] #1791934 03/30/15 08:11 PM 03/30/15 08:11 PM
Joined: Nov 2003 Posts: 915 Cincinnati OH B Bishop super stock
Bishop super stock B Joined: Nov 2003 Posts: 915 Cincinnati OH	How about a Magnesium TR??? 8475674-PICT0119.JPG (349 downloads) Last edited by Bishop; 03/30/15 09:15 PM.

Re: Old School Tunnel Ram on a BIG 540+ Inch HEMI [Re: Bishop] #1791935 03/30/15 08:24 PM 03/30/15 08:24 PM
Joined: Jan 2003 Posts: 9,677 Lima, Peru domingo OP EL Master
domingo OP EL Master Joined: Jan 2003 Posts: 9,677 Lima, Peru	Yes, thats what I was thinking....and old mag Pro Stock tunnel ram... Are those bigger volume?

Re: Old School Tunnel Ram on a BIG 540+ Inch HEMI [Re: domingo] #1791936 03/30/15 09:19 PM 03/30/15 09:19 PM
Joined: Nov 2003 Posts: 915 Cincinnati OH B Bishop super stock
Bishop super stock B Joined: Nov 2003 Posts: 915 Cincinnati OH	I hate to say it but going to a INDY TR there shorter and more direct 8475740-IndyTR1050.jpg (971 downloads)

Re: Old School Tunnel Ram on a BIG 540+ Inch HEMI [Re: Bishop] #1791937 03/30/15 09:21 PM 03/30/15 09:21 PM
Joined: Jan 2003 Posts: 9,677 Lima, Peru domingo OP EL Master
domingo OP EL Master Joined: Jan 2003 Posts: 9,677 Lima, Peru	you had the mag one on and now going to an Indy?

Re: Old School Tunnel Ram on a BIG 540+ Inch HEMI [Re: domingo] #1791938 03/30/15 09:24 PM 03/30/15 09:24 PM
Joined: Jan 2003 Posts: 31,307 Oregon A AndyF I Win
AndyF I Win A Joined: Jan 2003 Posts: 31,307 Oregon	I've done some dyno testing with the old Weiand tunnel rams. They don't make much power when compared to a more modern design.

Re: Old School Tunnel Ram on a BIG 540+ Inch HEMI [Re: AndyF] #1791939 03/30/15 09:26 PM 03/30/15 09:26 PM
Joined: Jan 2003 Posts: 9,677 Lima, Peru domingo OP EL Master
domingo OP EL Master Joined: Jan 2003 Posts: 9,677 Lima, Peru	Quote: I've done some dyno testing with the old Weiand tunnel rams. They don't make much power when compared to a more modern design. Is that with the regular Tunnel Rams or with the Magnesium Pro Stock tunnel rams? Cause I think they are different???

Re: Old School Tunnel Ram on a BIG 540+ Inch HEMI [Re: Bishop] #1791940 03/30/15 11:51 PM 03/30/15 11:51 PM
Joined: Jul 2010 Posts: 3,502 SOUTH JERSEY HEMIFRED master
HEMIFRED master Joined: Jul 2010 Posts: 3,502 SOUTH JERSEY	Quote: I hate to say it but going to a INDY TR there shorter and more direct poor design with no suitable plenum. adding spacers to increase the plenum have shown +40 HP increase. look at any sheet metal intake and see how much larger plenum home of the Sox and Martin Hemi Duster

Re: Old School Tunnel Ram on a BIG 540+ Inch HEMI [Re: HEMIFRED] #1791941 03/30/15 11:55 PM 03/30/15 11:55 PM
Joined: Jul 2010 Posts: 3,502 SOUTH JERSEY HEMIFRED master
HEMIFRED master Joined: Jul 2010 Posts: 3,502 SOUTH JERSEY	CFE 8475911-hemifredsmani.jpg (545 downloads) home of the Sox and Martin Hemi Duster

Re: Old School Tunnel Ram on a BIG 540+ Inch HEMI [Re: HEMIFRED] #1791942 03/31/15 12:19 AM 03/31/15 12:19 AM
Joined: May 2004 Posts: 12,525 Taxes & Virus's R-US, NY Dragula I Live Here
Dragula I Live Here Joined: May 2004 Posts: 12,525 Taxes & Virus's R-US, NY	I used the Indy TR for efi, and I did use a 5/8 spacer under the bug catcher to help straiten air flow on mine...I also just switched to the big plenum carbureted version of a single four... '70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft) https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car) https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car) https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9) '66 Barracuda AWB Stretched nose Blown 440 Car in build stage '71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph https://www.youtube.com/watch?v=Znuo3jMUXTk

Re: Old School Tunnel Ram on a BIG 540+ Inch HEMI [Re: Dragula] #1791943 03/31/15 04:43 AM 03/31/15 04:43 AM
Joined: Jan 2003 Posts: 6,420 nielsville, minn. Q quickd100 master
quickd100 master Q Joined: Jan 2003 Posts: 6,420 nielsville, minn.	How much power do you want? The old Weiand will still make impressive power. I don't have a scanner to post my dyno sheet so I'll just give the highlites. 605 10.4-1, head flow 386@.700. Start of the pull at 3500rpm, 764.3ftlbs and 513.2hp. 4000rpm 600.8hp, 788.2ftlbs. 4818rpm,(peak torque)750.8hp, 818.4ftlbs. 5782rpm, (peak hp) 852.8hp, 774.6ftlbs.Dave

Re: Old School Tunnel Ram on a BIG 540+ Inch HEMI [Re: quickd100] #1791944 03/31/15 10:58 AM 03/31/15 10:58 AM
Joined: Jan 2003 Posts: 9,677 Lima, Peru domingo OP EL Master
domingo OP EL Master Joined: Jan 2003 Posts: 9,677 Lima, Peru	Well, I would certainly wouldnt like to leave too much power on the table....although it seems the tunnel ram still makes gobs of power seeing quickd's data..... but I love the look of the tunnel ram... Fred, that sheetmetal inake looks sweet. How much will one like that cost??? Dragula how does the indy TR compare to the single 4?

Re: Old School Tunnel Ram on a BIG 540+ Inch HEMI [Re: domingo] #1791945 03/31/15 11:07 AM 03/31/15 11:07 AM
Joined: May 2004 Posts: 12,525 Taxes & Virus's R-US, NY Dragula I Live Here
Dragula I Live Here Joined: May 2004 Posts: 12,525 Taxes & Virus's R-US, NY	Quote: Well, I would certainly wouldnt like to leave too much power on the table....although it seems the tunnel ram still makes gobs of power seeing quickd's data..... Dragula how does the indy TR compare to the single 4? I can tell you the efi tunnel ram really needed the spacer to straighten the air flow as my set-up was batch fire and not sequential and therefore had no individual cylinder tuning....Some plugs were leaner than others. Maybe 572Charger will chime in...He ran that intake carbureted. The big bore single four intake should be close. BGR runs these a lot, and its the best big cube Hemi single four intake out there. I have not run it yet. I still need pushrods, and an oil pan, and an accumulator before we dyno it. On pump gas, we should make +800hp with that intake. The runners are huge....Still port matching the carb to it and next the runners...Its almost the same height if not the same height as the tunnel ram. I have no plans to run back to back testing unless someone wants to lend me an xfi ecu....or it sells first. Last edited by Dragula; 03/31/15 11:13 AM. '70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft) https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car) https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car) https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9) '66 Barracuda AWB Stretched nose Blown 440 Car in build stage '71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph https://www.youtube.com/watch?v=Znuo3jMUXTk

Re: Old School Tunnel Ram on a BIG 540+ Inch HEMI [Re: domingo] #1791946 03/31/15 12:07 PM 03/31/15 12:07 PM
Joined: Jul 2010 Posts: 1,845 Tampa D DusterDave top fuel
DusterDave top fuel D Joined: Jul 2010 Posts: 1,845 Tampa	Quote: Fred, that sheetmetal inake looks sweet. How much will one like that cost??? I'm not Fred, BUT, you're looking at $4,000+ for a new sheet metal tunnel ram. The intakes from this company are works of art. http://www.marcellamanifolds.net/images/Images.html Gone to the dark side with an LS3 powered '57 Chevy 210

Re: Old School Tunnel Ram on a BIG 540+ Inch HEMI [Re: DusterDave] #1791947 03/31/15 01:09 PM 03/31/15 01:09 PM
Joined: Mar 2006 Posts: 9,910 Eighty Four, PA B G Racing master
B G Racing master Joined: Mar 2006 Posts: 9,910 Eighty Four, PA	We have run all types of intakes from RatRoster styles, X-rams, multiple single fours to cast TRs to sheet metal TRs and X-rams.There are a lot of varables to consider for a successfull combo.As far as the Indy or any TR manifold a little extra plenum is always helpful.Indy has a 1/2" spacer available.One of our sheet metal TRs,similar to a Hogan really came to life after fabracating a 2" spacer.We still have some Rat-R bases and old style TRs,new and used in the attic. [IMG]http://i430.photobucket.com/albums/qq21/ajcasini/max_zpsdppwd9km.jpg[/IMG]

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