p51 headed 514
+7
IDT-572
rmcomprandy
68galaxie
5pointslow
dfree383
BBFTorino
Rickytx630
11 posters
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p51 headed 514
what are the advantages of running a ported single 4bbl or a tunnel ram? odd question i know, right now the intake im using is a gasket matched victor 460 with the 4150 flange and using 4500 adapter on it, its a 514ci (4.440borex4.150stroke 6.800rods) with ported p51's, and 1150 cfm dominator car runs good amd theres no complaints, i just want more, my question is will i be better off with a ported single 4bbl with the one i have now? was also looking at the trickflow mafia intake that kaase offers? or would something like a HRE sheetmetal 1x4 or 2x4 set up be the way to go, car weights 3022lbs with me in it race ready and 5 gallons of fuel, went 8.80 8.80 8.84 and an 8.83 with the 4 passes made, cross traps at 7300rpms want to improve but dont wanna lose any either
Rickytx630- Posts : 100
Join date : 2016-01-18
Re: p51 headed 514
Obviously, two carbs will make more power, but how much more over your current setup is unknown. Are those 8 second passes in the quarter mile, or the eighth mile??
BBFTorino- Posts : 997
Join date : 2015-12-31
Re: p51 headed 514
You’ll find improvement in modifying the manifold for the 4500 and ditching the adaptor and running a good spacer like a jomar power cone.
The Avaliable cast tunnel rams will make a little more power but require some mods to make it and 2x4 stuff is a pita with linkage and tuning.
The Avaliable cast tunnel rams will make a little more power but require some mods to make it and 2x4 stuff is a pita with linkage and tuning.
dfree383- BBF CONTRIBUTOR
- Posts : 14832
Join date : 2009-07-09
Location : Home Wif Da Wife.....
Re: p51 headed 514
dfree383 wrote:You’ll find improvement in modifying the manifold for the 4500 and ditching the adaptor and running a good spacer like a jomar power cone.
The Avaliable cast tunnel rams will make a little more power but require some mods to make it and 2x4 stuff is a pita with linkage and tuning.
you maybe able to chime in on this better than i would but wouldnt a Tfs Mafia intake be an upgrade here with 4500 pad , especially with the ported p-51's
5pointslow- Posts : 1401
Join date : 2009-10-11
Age : 35
Location : MASSHOLE aka BOSTONIAN
Re: p51 headed 514
I agree there is plenty of room to better a the port matched Victor intake.
There is much material removal required - just to get rid of reverse taper in the ports.
There was a thread on here (IDT-572) that welded up a Victor and reduced the outer
port lengths substantially. Peak power rpm went to 7200 I recall, where it was previously stuck at 6600 rpm.
Similar mods done to a trick flow intake:
http://www.460ford.com/forum/1435522-post237.html
Cheers!!
There is much material removal required - just to get rid of reverse taper in the ports.
There was a thread on here (IDT-572) that welded up a Victor and reduced the outer
port lengths substantially. Peak power rpm went to 7200 I recall, where it was previously stuck at 6600 rpm.
Similar mods done to a trick flow intake:
http://www.460ford.com/forum/1435522-post237.html
Cheers!!
68galaxie- Posts : 351
Join date : 2010-04-13
Location : Edmonton AB
Re: p51 headed 514
5pointslow wrote:dfree383 wrote:You’ll find improvement in modifying the manifold for the 4500 and ditching the adaptor and running a good spacer like a jomar power cone.
The Avaliable cast tunnel rams will make a little more power but require some mods to make it and 2x4 stuff is a pita with linkage and tuning.
you maybe able to chime in on this better than i would but wouldnt a Tfs Mafia intake be an upgrade here with 4500 pad , especially with the ported p-51's
The mafia intake volume and size is a lot bigger, better for bigger engines IMO, the victor will work fine on a 514
Last edited by dfree383 on July 16th 2018, 2:24 pm; edited 1 time in total
dfree383- BBF CONTRIBUTOR
- Posts : 14832
Join date : 2009-07-09
Location : Home Wif Da Wife.....
Re: p51 headed 514
68galaxie wrote:I agree there is plenty of room to better a the port matched Victor intake.
There is much material removal required - just to get rid of reverse taper in the ports.
There was a thread on here (IDT-572) that welded up a Victor and reduced the outer
port lengths substantially. Peak power rpm went to 7200 I recall, where it was previously stuck at 6600 rpm.
Similar mods done to a trick flow intake:
http://www.460ford.com/forum/1435522-post237.html
Cheers!!
That intake manifold in your link is for an A460 head.
I did that actual dyno test of the ported "Dominator" Victor and ported "Mafia" intake on a 502 engine with ported P-51 cylinder heads and large flat tappet camshaft; 272/284 @.050".
At the best tune for each ... "The Mafia" was 6 horsepower better at the peak and held on about 400 RPM longer but, LOST 42 lb/ft of peak torque to the "Victor".
It really depends upon what you are after. Blake's sectioned Victor would be the way to go; in my opinion.
Re: p51 headed 514
I have the Mafia I did for Jon back in my hands, I would like to see it on the dyno again and try both back to back.
But 580 inches at 7500 rpm I think the head is producing too much air speed to make much more power. I have never measured the min cross section to calculate it.
With the Victor it made almost 800 ft lb at 5500 and held it to almost 6500 peaking at 810 @ 6100.
It made 982 hp @ 6500 and still had 990 hp at 7500 where the pull ended. peaking at 1003 @ 7200.
But 580 inches at 7500 rpm I think the head is producing too much air speed to make much more power. I have never measured the min cross section to calculate it.
With the Victor it made almost 800 ft lb at 5500 and held it to almost 6500 peaking at 810 @ 6100.
It made 982 hp @ 6500 and still had 990 hp at 7500 where the pull ended. peaking at 1003 @ 7200.
IDT-572- BBF CONTRIBUTOR
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Join date : 2008-12-02
Age : 63
Location : Shelbyville Tn.
Re: p51 headed 514
Thank you for the correction Randy!
I was quickly looking for a picture of the cut and welded Victor which is no longer on the original engine build thread.
I saw the trick flow intake and quickly assumed it was a mafia intake.
Thanks for the correction, same idea though for modification of end runner lengths.
Cheers
I was quickly looking for a picture of the cut and welded Victor which is no longer on the original engine build thread.
I saw the trick flow intake and quickly assumed it was a mafia intake.
Thanks for the correction, same idea though for modification of end runner lengths.
Cheers
68galaxie- Posts : 351
Join date : 2010-04-13
Location : Edmonton AB
Re: p51 headed 514
68galaxie wrote:Thank you for the correction Randy!
I was quickly looking for a picture of the cut and welded Victor which is no longer on the original engine build thread.
I saw the trick flow intake and quickly assumed it was a mafia intake.
Thanks for the correction, same idea though for modification of end runner lengths.
Cheers
That I know of ... Blake did some, (at least 1 Victor & 1 Mafia), I did a couple, Brandon Kinser did one and Charlie Evans did some, also. All were for big block Ford engines and some were certainly different brand manifolds.
The 2 which I did were both Victor based but, some others were not.
Re: p51 headed 514
BBFTorino wrote:Obviously, two carbs will make more power, but how much more over your current setup is unknown. Are those 8 second passes in the quarter mile, or the eighth mile??
passes were made in the 1/4mile,
Rickytx630- Posts : 100
Join date : 2016-01-18
Re: p51 headed 514
SHEET METAL,with either 1 or 2 carbs
BOSS 429- Posts : 2371
Join date : 2009-08-10
Location : Ill
Re: p51 headed 514
Rickytx630 wrote:what are the advantages of running a ported single 4bbl or a tunnel ram? odd question i know, right now the intake im using is a gasket matched victor 460 with the 4150 flange and using 4500 adapter on it, its a 514ci (4.440borex4.150stroke 6.800rods) with ported p51's, and 1150 cfm dominator car runs good amd theres no complaints, i just want more, my question is will i be better off with a ported single 4bbl with the one i have now? was also looking at the trickflow mafia intake that kaase offers? or would something like a HRE sheetmetal 1x4 or 2x4 set up be the way to go, car weights 3022lbs with me in it race ready and 5 gallons of fuel, went 8.80 8.80 8.84 and an 8.83 with the 4 passes made, cross traps at 7300rpms want to improve but dont wanna lose any either
Pretty good runs IMO if that's N/A?
![Smile](https://2img.net/i/fa/i/smiles/icon_smile.gif)
Mark Miller- Posts : 1946
Join date : 2009-09-01
Re: p51 headed 514
If you have an unlimited budget obviously the Billet and Sheet metal stuff is the ticket for max performance. But at about $3000 for Sheet metal / and upwords of $7000 for billet manifolds and $2500+ for carbs the bang for the buck on a bracket engine just ain't their. You could get lucky and score one used...... but you and everyone else is looking for that score.
Even the old school cast TR's after mods and adding a pairs of carbs is going to set you back a 2-3 thousand dollars after all said and done making it right.
But if your tight on funds, The Victor set-up you have can be upgraded for a few hundred bucks to give you a good shot more power and not break the bank.
As the old saying goes how fast you can go depends on how fast you can spend !
Even the old school cast TR's after mods and adding a pairs of carbs is going to set you back a 2-3 thousand dollars after all said and done making it right.
But if your tight on funds, The Victor set-up you have can be upgraded for a few hundred bucks to give you a good shot more power and not break the bank.
As the old saying goes how fast you can go depends on how fast you can spend !
dfree383- BBF CONTRIBUTOR
- Posts : 14832
Join date : 2009-07-09
Location : Home Wif Da Wife.....
Re: p51 headed 514
Tunnel ram will take your power band and raise both HP and Torque up on average.
Straubtech- Posts : 293
Join date : 2015-03-31
Re: p51 headed 514
Straubtech wrote:Tunnel ram will take your power band and raise both HP and Torque up on average.
Which tunnel ram?
dfree383- BBF CONTRIBUTOR
- Posts : 14832
Join date : 2009-07-09
Location : Home Wif Da Wife.....
Re: p51 headed 514
dfree383 wrote:Straubtech wrote:Tunnel ram will take your power band and raise both HP and Torque up on average.
Which tunnel ram?
Calculate the MCSA of intake area it will need and by the tunnel ram that is smaller than the area needed. Port to size.
Straubtech- Posts : 293
Join date : 2015-03-31
Re: p51 headed 514
Straubtech wrote:dfree383 wrote:Straubtech wrote:Tunnel ram will take your power band and raise both HP and Torque up on average.
Which tunnel ram?
Calculate the MCSA of intake area it will need and by the tunnel ram that is smaller than the area needed. Port to size.
Have you measured and looked at the offy and weiand TR's that are readily available? We aren't dealing with a BBC or SBC that has a few dozen variations manufactured of the years.
dfree383- BBF CONTRIBUTOR
- Posts : 14832
Join date : 2009-07-09
Location : Home Wif Da Wife.....
Re: p51 headed 514
dfree383 wrote:Straubtech wrote:dfree383 wrote:Straubtech wrote:Tunnel ram will take your power band and raise both HP and Torque up on average.
Which tunnel ram?
Calculate the MCSA of intake area it will need and by the tunnel ram that is smaller than the area needed. Port to size.
Have you measured and looked at the offy and weiand TR's that are readily available? We aren't dealing with a BBC or SBC that has a few dozen variations manufactured of the years.
I'm sure Foxwell has, he would have the numbers or if one wants to give us a peak rpm for HP, we can give you the needed area.
Straubtech- Posts : 293
Join date : 2015-03-31
Mafia versus Victor torque loss.
Randy how much porting if any was done to Victor intake that was 42# better with Torque? This Proof might get my friend to try my Victor since its close to same motor and only sees 1/8 mile and only spins it like 6300-6500 max.
ED468- Posts : 200
Join date : 2013-03-27
Location : Maunie il.
Re: p51 headed 514
ED468 wrote:Randy how much porting if any was done to Victor intake that was 42# better with Torque? This Proof might get my friend to try my Victor since its close to same motor and only sees 1/8 mile and only spins it like 6300-6500 max.
Port matched ... squared off front and rear carb pad and then end runners ported at the roof. Nothing special.
Same with the Mafia.
Re: p51 headed 514
Mark Miller wrote:Rickytx630 wrote:what are the advantages of running a ported single 4bbl or a tunnel ram? odd question i know, right now the intake im using is a gasket matched victor 460 with the 4150 flange and using 4500 adapter on it, its a 514ci (4.440borex4.150stroke 6.800rods) with ported p51's, and 1150 cfm dominator car runs good amd theres no complaints, i just want more, my question is will i be better off with a ported single 4bbl with the one i have now? was also looking at the trickflow mafia intake that kaase offers? or would something like a HRE sheetmetal 1x4 or 2x4 set up be the way to go, car weights 3022lbs with me in it race ready and 5 gallons of fuel, went 8.80 8.80 8.84 and an 8.83 with the 4 passes made, cross traps at 7300rpms want to improve but dont wanna lose any either
Pretty good runs IMO if that's N/A?![]()
its N/A, most likely will remain all motor too
Rickytx630- Posts : 100
Join date : 2016-01-18
Re: p51 headed 514
dfree383 wrote:If you have an unlimited budget obviously the Billet and Sheet metal stuff is the ticket for max performance. But at about $3000 for Sheet metal / and upwords of $7000 for billet manifolds and $2500+ for carbs the bang for the buck on a bracket engine just ain't their. You could get lucky and score one used...... but you and everyone else is looking for that score.
Even the old school cast TR's after mods and adding a pairs of carbs is going to set you back a 2-3 thousand dollars after all said and done making it right.
But if your tight on funds, The Victor set-up you have can be upgraded for a few hundred bucks to give you a good shot more power and not break the bank.
As the old saying goes how fast you can go depends on how fast you can spend !
was just looking for a little more, car will get a big diet this coming winter (tube chassis being built) was also maybe thinking of going to an alky setup on it and port the victor i got now.
Rickytx630- Posts : 100
Join date : 2016-01-18
Re: p51 headed 514
Rickytx630 wrote:Mark Miller wrote:Rickytx630 wrote:what are the advantages of running a ported single 4bbl or a tunnel ram? odd question i know, right now the intake im using is a gasket matched victor 460 with the 4150 flange and using 4500 adapter on it, its a 514ci (4.440borex4.150stroke 6.800rods) with ported p51's, and 1150 cfm dominator car runs good amd theres no complaints, i just want more, my question is will i be better off with a ported single 4bbl with the one i have now? was also looking at the trickflow mafia intake that kaase offers? or would something like a HRE sheetmetal 1x4 or 2x4 set up be the way to go, car weights 3022lbs with me in it race ready and 5 gallons of fuel, went 8.80 8.80 8.84 and an 8.83 with the 4 passes made, cross traps at 7300rpms want to improve but dont wanna lose any either
Pretty good runs IMO if that's N/A?![]()
its N/A, most likely will remain all motor too
Thanks for the info nice runs for N/A at that weight IMO!!!
![Smile](https://2img.net/i/fa/i/smiles/icon_smile.gif)
Mark Miller- Posts : 1946
Join date : 2009-09-01
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