Re: 61 Plymouth twin turbo longram project
[Re: dakotawilly]
#1564329
01/18/14 01:21 AM
01/18/14 01:21 AM
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dragula426
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I would guess that you will be using the high beam pockets for cold air intake?
That has been considered. Not totally sure yet.
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Re: 61 Plymouth twin turbo longram project
[Re: jcc]
#1564330
01/18/14 01:28 AM
01/18/14 01:28 AM
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MR_P_BODY
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Intercooler?
I wonder how much those long rams will act as an intercooler?
And what is the tuning effect of adding additional psi to those long rams, does it move rpm peak tq up or down?
I dont think the long ram length will help at all for any cooling... if anything they will hold heat.. E-85 would help cool them SOME
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Re: 61 Plymouth twin turbo longram project
[Re: 80arrow]
#1564331
01/18/14 01:35 AM
01/18/14 01:35 AM
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dragula426
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Looking awesome, Tony
Thanks Clint!! Slowly picking away at it
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Re: 61 Plymouth twin turbo longram project
[Re: jcc]
#1564333
01/18/14 04:07 AM
01/18/14 04:07 AM
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Posts: 6,566 Downtown Roebuck Ont
Twostick
Still wishing...
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Still wishing...
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Quote:
Quote:
Intercooler?
I wonder how much those long rams will act as an intercooler?
And what is the tuning effect of adding additional psi to those long rams, does it move rpm peak tq up or down?
The longrams moved the torque peak down NA so it should just be more torque in about the same range. Let's see 900 ft/lbs @ 2500 rpm...
Kevin
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Re: 61 Plymouth twin turbo longram project
[Re: ScottSmith_Harms]
#1564336
01/18/14 02:33 PM
01/18/14 02:33 PM
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dragula426
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Love the build and every aspect of your direction, very cool car! The twin turbo Long Ram will be a torque behemoth!
Have you considered reworking the plenum dividers to bring the torque curve higher like a short ram intake? I have a diagram to show how it's done, pretty easy mod
i'd like to see that diagram.
we really haven't been worried about the torque being too low. in fact, we are hoping that it will be a low rpm torque monster... i've split my fair share of blocks over the years and am hoping with this project to not spin it to the moon and maybe save on parts. it's a stock block with program caps, eagle rods & crank, indy-1 heads(left over from the candy wagon) small solid cam, and small turbos. this without a doubt isn't the all out race effort/most efficient/maximum power/set the world on fire combo! the car might still be heavy, and i'm not gonna set any records. we are really building this to look unique, run respectable, hopefully not break parts, and be able to nuke the tires off at ANY speed!
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Re: 61 Plymouth twin turbo longram project
[Re: cudaman1969]
#1564337
01/18/14 02:43 PM
01/18/14 02:43 PM
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dragula426
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HOW long did it take to polish those pipes?! No other brand has cool like that.
about 20 hours per side.... and i'm not even finished with them yet!
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Re: 61 Plymouth twin turbo longram project
[Re: dwayne welder]
#1564339
01/18/14 05:52 PM
01/18/14 05:52 PM
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Posts: 9,876 Weddington, N.C.
Streetwize
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I love it....but it is begging for port injection and dry throttle bodies so ALL the compressed cross section through the manifolds is AIR and not displaced by solid fuel which robs volume for the air to go.
Also with those isolated bank runners a 180 degree (super light and super strong) Crank would be INSANE with all that available manifold torque.
Last edited by Streetwize; 01/18/14 05:53 PM.
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Re: 61 Plymouth twin turbo longram project
[Re: dragula426]
#1564340
01/18/14 08:05 PM
01/18/14 08:05 PM
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Joined: Jan 2003
Posts: 42,714 Spokane Washington
ScottSmith_Harms
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Quote:
i'd like to see that diagram.
we really haven't been worried about the torque being too low. in fact, we are hoping that it will be a low rpm torque monster... i've split my fair share of blocks over the years and am hoping with this project to not spin it to the moon and maybe save on parts. it's a stock block with program caps, eagle rods & crank, indy-1 heads(left over from the candy wagon) small solid cam, and small turbos. this without a doubt isn't the all out race effort/most efficient/maximum power/set the world on fire combo! the car might still be heavy, and i'm not gonna set any records. we are really building this to look unique, run respectable, hopefully not break parts, and be able to nuke the tires off at ANY speed!
In theory you'll likely need some of the ram effect to provide torque before the turbos kick in if going with blow through carbs as they will work like a NA setup until boost kicks in. The "Short Ram" modified intakes should provide plenty and offer a happy medium by bringing up the torque peak 1K rpm or so.
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Re: 61 Plymouth twin turbo longram project
[Re: ScottSmith_Harms]
#1564343
01/18/14 11:35 PM
01/18/14 11:35 PM
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dragula426
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In theory you'll likely need some of the ram effect to provide torque before the turbos kick in if going with blow through carbs as they will work like a NA setup until boost kicks in. The "Short Ram" modified intakes should provide plenty and offer a happy medium by bringing up the torque peak 1K rpm or so.
thanks for the diagram! but i've got WAY too much time polishing the intakes and won't be cutting them apart!
i'm sure it will be a slight learning curve, but i also think sometimes we tend to overthink things too. back in the early 60's these long rams were used with some success, and i believe set a few records on a bonnevile set-up that used blowers.it might not be comparing apples to apples... i have thought about maybe adding a small shot of nitrous if it's a slouch off idle/ the line. who knows... only time will tell
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Re: 61 Plymouth twin turbo longram project
[Re: ScottSmith_Harms]
#1564345
01/19/14 01:50 PM
01/19/14 01:50 PM
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dragula426
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As long as there has been some interest in this project, why not have some thoughts on what sort of power/ torque this thing might make ...I realize it's a shot in the dark to some extent because of the wildcard intake setup, and they might leave 100hp on the table but I'm curious to see what the general consensus might be.... Then look back when I dyno it and compare numbers Here's the basic specs 440 Blk. Program caps Eagle rods 6.76 Eagle crank 4,15 Ross custom dished pistons approx 9-1 Indy 440-1 heads decent flow #s but I can't find the flow sheets. They do have the 2.25 valves though Cam Solid Flat Tappet .576 lift 274 adv dur [Email]246@.050[/Email] 114 lsa Turbos Borg Warner S400-64mm compressor 83 x 74, 1.10 A/R T6 Turbine Carbs are Holley 450's set up for blowthru We will probably try to figure out tunes for race gas(110) and one for pump gas (91) as well So....... What do you all think??
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Re: 61 Plymouth twin turbo longram project
[Re: Dragula]
#1564346
01/19/14 02:08 PM
01/19/14 02:08 PM
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Posts: 4,395 The Pale Blue Dot
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Quote:
Well I like the long cross rams, I would do it a bit differently...I would look to do something more performance based.
Someone did a lot of work to mod those intakes, if it's not a 'shop.
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Re: 61 Plymouth twin turbo longram project
[Re: dragula426]
#1564347
01/19/14 02:16 PM
01/19/14 02:16 PM
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Joined: Jan 2003
Posts: 42,714 Spokane Washington
ScottSmith_Harms
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Mr Wizzard
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WAG? I had a rebuilt, mostly stock, 1960 Long Ram engine. Stock stroke, bored to 426 cubes, forged 9.6:1 lightweight Diamond pistons, stock rods, stock heads with bigger valves and a mild pocket port cleanup (these heads were quite restrictive, I'd guess at only around 220-230 on the intake side) stock 2903 afb carbs (they flow in the 400-450 cfm range) a hydraulic Comp XFI roller cam, lobes have between 236 duration @.050 up to 242 @ .050 with .630 lift at the retainers with 1.5 ratio rockers or .672 with 1.6 rockers, lobe center is 111. with this cam the party is over under 5,500 rpm. We dyno'd the engine and it made 512TQ/405HP with stock exhaust manifolds. Peak torque was around 3600RPM, peak HP was a around 5,000rpm, timing set at 34 timing/74 secondary. With that in hand; Your combo would likely yield similar numbers but with the 4.15 crank you'd likely hit your peak torque at a lower rpm and probably 25-50HP due to the better heads. I'd guess with the blow through turbos you'll be gaining between 150-200HP. I'd recommend having your pistons and other combustion chamber parts high temp coated and a water or methanol injection setup to keep things cool in there.
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