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Author
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Topic: 351c and Tunnel Ram
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Keota66Stang
Journeyman Posts: 7
From: Fort Collins, CO
Registered: Oct 2006
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posted 11-06-2006 01:50 PM
 
Good Morning, I've enjoyed reading all the posts in this section and I thought it was about time for me to ask some questions.  I have been thinking about putting a tunnel ram on my 351c. I assume I wouldn't want to go above a pair of Holley 450's. I'd like to hear form others who have done this or have had issues with it. Here is my current car setup. comp cam/ .570 lift .292 duration
sainless steel valves 2.19intake 1.77 exaust
cc and flow tested kline guides and plates
harland & sharp roller rockers
melling high volume oil pump
dual remote oil filters
holly street dominator intake ports matched and flow tested
800 CFM holley double pumper
carter super fuel pump
mallory uniltie distributor
t5 borg/warner 5speed transmission
motorsport short throw shifter
motorsport heavy duty clutch
motorsport flywheel and bell housing
1" sway bar
disc brakes front and rear
9" rear end w/ 4.10 gearslimited slip Thanks [This message has been edited by Keota66Stang (edited 11-06-2006).]
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prostreeter
Gearhead Posts: 437
From: littleton,co
Registered: Mar 2005
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posted 11-06-2006 03:53 PM
Welcome to M&M and the world of clevelands with tunnel rams.Most people will advise against it for many reasons.Reason number one is the RPM range that they operate properly.Everyone,even most on this forum advised me not to do it.Well I did do it and couldn't be more happy.We all know it's difficult to go fast at our altiude with a street/strip car.My best run was 12 flat with a strip dominator intake and a Holley 1000cfm carb.I then installed a Weiand tunnel ram with two Holley 650 double pumpers with basically zero tunning to the motor/carb setup and laid down an 11.86 run with a very cheap converter.The car could easily be low 11's or high 10's with a good tune and good converter.Now,I see a couple issues with your engine.I think your cam may be a bit small and I'm not sure about the 5 speed trans.Do you have the 4V CC heads? and if so what are the flow rates.That will make a huge difference for the T ram to work.You will need a special dist from MSD with the small cap.Even if you get the small dist the T ram with needs lots of grinding to get everything to fit.I can answer more on that later if you decide to go ahead with the project.If you have the right compression,cam,heads,trans and carbs it will work and you will be as happy as I am.Depending on your heads and how they flow,450 cfm will be too small of carbs.Stay away from vaccum secondary carbs by the way.If everyting is done right it will run hard and look great too.People at the car shows love to see the "old school" look of the cleveland.
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Keota66Stang
Journeyman Posts: 7
From: Fort Collins, CO
Registered: Oct 2006
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posted 11-06-2006 05:10 PM
Hey do you have any pictures of your setup? It's good to see another Mustang guy in Colorado. I wondered if I was the only crazy 3511c fan that wanted to do a tunnel ram.Thanks
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prostreeter
Gearhead Posts: 437
From: littleton,co
Registered: Mar 2005
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posted 11-06-2006 05:52 PM
Go to the members photo page and pull up Steve Alley AKA Prostreeter's page.There are a couple pics of the motor.If you need additional pics I can email some. BTW....we have some really knowledgable cleveland guys on this forum and I'm sure they'll be around soon to help out.My cleveland experience/knowhow is somewhat limited compared to these guys but I do know what worked for me. [This message has been edited by prostreeter (edited 11-06-2006).]
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kid vishus
Gearhead Posts: 7251
From: middle of NC
Registered: Oct 2000
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posted 11-06-2006 06:21 PM
Welcome to M&M.  I'm one of those that would never stick a tunnelram on a cleveland. Yeah they look cool, but in my opinion, thats about all. Since I'm a bracket racer, I'm more worried about consistancy than looks. Regardless of my opinion, prostreeter has his figured out, and if you decide to do it, that would be the man to talk to. I do agree on one thing though, that cam is too small to make a tunnelram or any good race intake work well. ------------------
Rob Hetzler
M&M member #773
'69 mustang, 351C, best 9.97 @ 133 mph 1/4, 6.18 @ 110.4 1/8 (til it blew up), now 402" clevor powered, 6.144 @ 112 mph
'93 F150 Lightning 15.33 @ 87 mph, completely stock with 206k miles
'04 F350 dually quad cab powerstroke (tow truck for the racecars)
'60 Falcon wagon project car
'99 Pro Et track champion
'00 Mod ET R-up (with new car) My Photo Page
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Stang72
Gearhead Posts: 326
From: Arkel,Zuid-Holland,Holland
Registered: Jan 2003
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posted 11-13-2006 04:16 AM
i would do it, and i am gonna do it..i agree with Kid/Prostreeter that your cam might be to small. (i have exactly the same cam in my 351C, but i have 2 other bigger ones lying around , still have to decide which one will go in....) my tunnelram was offered to me for little money , it is brandnew, well ok, it has 200miles on it, but other than that, it just sat on a shelf... here's one to convince you..
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prostreeter
Gearhead Posts: 437
From: littleton,co
Registered: Mar 2005
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posted 11-13-2006 07:39 AM
quote:
Originally posted by Stang72:
i would do it, and i am gonna do it..i agree with Kid/Prostreeter that your cam might be to small. (i have exactly the same cam in my 351C, but i have 2 other bigger ones lying around , still have to decide which one will go in....) my tunnelram was offered to me for little money , it is brandnew, well ok, it has 200miles on it, but other than that, it just sat on a shelf... here's one to convince you..
Yup that's the one.My intake is not polished like the one you have posted but we have something in common,the nitrous injected right into the cylinder.What size jet will you be using.I'm using a 75hp shot and with the engine/nitrous well over 650hp. One other note,for the T ram to work on a cleveland the exhaust ports needs lots of work to get them to flow properly.My heads had major surgery done to get the flow rate in the 250cfm range.Also large headers and I mean a minimum of 2 1/4 inch is required.
If any of the above mentioned modifications are overlooked the engine will be a pooch.
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prostreeter
Gearhead Posts: 437
From: littleton,co
Registered: Mar 2005
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posted 11-13-2006 07:44 AM
quote:
Originally posted by prostreeter:
Yup that's the one.My intake is not polished like the one you have posted but we have something in common,the nitrous injected right into the cylinder.What size jet will you be using.I'm using a 75hp shot and with the engine/nitrous well over 650hp.One other note,for the T ram to work on a cleveland the exhaust ports needs lots of work to get them to flow properly.My heads had major surgery done to get the flow rate in the 250cfm range.Also large headers and I mean a minimum of 2 1/4 inch is required.
If any of the above mentioned modifications are overlooked the engine will be a pooch.
BTW...dont go cheap on the carb linkage.Get a good one.Seen the good ones on ebay for about $120.00.
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Keota66Stang
Journeyman Posts: 7
From: Fort Collins, CO
Registered: Oct 2006
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posted 11-13-2006 09:22 AM
Good morning and thanks for the great posts. I'm not sure which cam to go with either. I am looking at a pair of Edelbrock aluminum heads to match up with the new setup. Anyone have good or bad luck with them?
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Stang72
Gearhead Posts: 326
From: Arkel,Zuid-Holland,Holland
Registered: Jan 2003
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posted 11-13-2006 09:51 AM
quote:
Originally posted by prostreeter:
Yup that's the one.My intake is not polished like the one you have posted but we have something in common,the nitrous injected right into the cylinder.What size jet will you be using.I'm using a 75hp shot and with the engine/nitrous well over 650hp.One other note,for the T ram to work on a cleveland the exhaust ports needs lots of work to get them to flow properly.My heads had major surgery done to get the flow rate in the 250cfm range.Also large headers and I mean a minimum of 2 1/4 inch is required.
If any of the above mentioned modifications are overlooked the engine will be a pooch.
i don't know yet about the size jets, i just got the intake, it sat on the shelf for about 6-7 years, so it will be in need of some clean-up inside and outside.. i have got the "Boss" heads on top off my 351C, there is some work done to the exhaustports, but nothing major. @Keota66Stang, my opinion is , forget the Edelbrock heads, but settle for some original 4V CC heads or some CHI,AFD or similar heads...
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prostreeter
Gearhead Posts: 437
From: littleton,co
Registered: Mar 2005
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posted 11-13-2006 04:36 PM
I agree on the Edlebrock heads.If you dont mind cast iorn heads use the 4v CC heads .They can be prepped to make tons of power.The OC heads will not work with the ram.
If your wanting aluminum go with CHI.There are a whole bunch of 4v heads on ebay all the time.
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