Tunnelram RPM range
#1631139
06/09/14 07:14 PM
06/09/14 07:14 PM
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Joined: Jun 2010
Posts: 462
Stockholm, Sweden
fed
OP
mopar
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OP
mopar
Joined: Jun 2010
Posts: 462
Stockholm, Sweden
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What is the Rpm range on this TR?
Cuda, -70
Valiant-65 AWB,
Valiant Signet200 -65 Topchopped dragcar.
Topolino Fuel Altered.
NostalgiaFED Sold,
SuperComp Bantam Altered, Sold
Ex Harlan Thompsons Nitro funny car American Graffiti Sold,
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Re: Tunnelram RPM range
[Re: fed]
#1631140
06/09/14 07:26 PM
06/09/14 07:26 PM
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Joined: Aug 2003
Posts: 43,289
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,289
Bend,OR USA
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Quote:
What is the RPM range on this TR?
It depends on the cam, carbs, headers, motor size and so on  I would say from around 2500 RPM and up to where you want to shift it  I've had a few motors with different tunnel rams, the carb. size, headers, cam and valve train will dictate where the motor will quit pulling hard Sorry for no personel experiences on that manifold 
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Tunnelram RPM range
[Re: Cab_Burge]
#1631141
06/09/14 07:59 PM
06/09/14 07:59 PM
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Joined: Sep 2003
Posts: 2,008
Sweet Home Alabama
MRMOPAR622
top fuel
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top fuel
Joined: Sep 2003
Posts: 2,008
Sweet Home Alabama
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It looks like a weiand I run one of those years ago I think it was rated from 3500-7500.But like Cab said it is based more on your combo.I run 2 Holley 4779 750 DP with the air horns milled of and power valves block #80 sq jetted on a 440 cu n engine ported & polished 915 heads and Comp Cams 286 duration 750 lift.You will not lose any bottom end with that intake.Most engines similar to mine with a M1 intake a 1050 Holley made in the upper 580 hp range,with that intake mine made 614 hp @ 6400 RPM.Before the dyno pull they told me I should have went with the M1 & 1050 Holley,after the dyno pull they asked it they could try the intake & carbs on their personal engine and went from the upper 580 hp to 612 hp.The only thing the intake needs is gasket matching.
Last edited by MRMOPAR622; 06/09/14 08:02 PM.
"To Be The Man'You Have Got To Beat The Man"
"T/D and Pro-Bracket Racer"
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Re: Tunnelram RPM range
[Re: AndyF]
#1631143
06/10/14 12:29 AM
06/10/14 12:29 AM
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Joined: Jan 2003
Posts: 10,016
Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,016
Frostbitefalls MN (Rocky&Bullw...
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Porting them also helps with bigger short blocks, and obviously cam selection is important. I hogged mine out and saw a solid .10+ from increased runner volume on a 535 with 906 heads. It really woke up when I went from the .590 cam to a 286/286 @ .050 roller. The rpm difference was from 5700 best shift points to 6200 rpm with the roller.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: Tunnelram RPM range
[Re: Rob C]
#1631145
06/10/14 07:27 PM
06/10/14 07:27 PM
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Joined: Jun 2010
Posts: 462
Stockholm, Sweden
fed
OP
mopar
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OP
mopar
Joined: Jun 2010
Posts: 462
Stockholm, Sweden
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Sorry but i dont have enginespecs. I have the intake for sale and a customer asked. its not a Weiand but a Mopar intake.
Last edited by fed; 06/11/14 08:03 PM.
Cuda, -70
Valiant-65 AWB,
Valiant Signet200 -65 Topchopped dragcar.
Topolino Fuel Altered.
NostalgiaFED Sold,
SuperComp Bantam Altered, Sold
Ex Harlan Thompsons Nitro funny car American Graffiti Sold,
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Re: Tunnelram RPM range
[Re: Rob C]
#1631146
06/10/14 08:09 PM
06/10/14 08:09 PM
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Joined: Aug 2003
Posts: 1,314
Charlotte, NC
LSP
pro stock
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pro stock
Joined: Aug 2003
Posts: 1,314
Charlotte, NC
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Quote:
How long are the runners on that MP part?
That will give you an idea of the power range, I'd take what's advertised with a grain of salt.
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Re: Tunnelram RPM range
[Re: LSP]
#1631147
06/11/14 02:09 PM
06/11/14 02:09 PM
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Joined: Jan 2003
Posts: 684
St. Charles, MO.
Slingshot383
mopar
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mopar
Joined: Jan 2003
Posts: 684
St. Charles, MO.
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FED, you can't listen to Chevy guys about a tunnel ram on a MOPAR, it's apples and oranges. On a big block MOPAR, the tunnel ram is more forgiving and makes more power than any single 4 intake. and more so when fitted with a pair of Dominators.
1994 Undercover Chassis 125" altered
stack injected big block, soon blown and injected
Member of The Torque and Recoil Club
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Re: Tunnelram RPM range
[Re: fed]
#1631148
06/11/14 03:56 PM
06/11/14 03:56 PM
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Joined: Mar 2005
Posts: 792
Earth
Rob C
super stock
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super stock
Joined: Mar 2005
Posts: 792
Earth
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Quote:
Sorry but i dont have enginespecs. I have the intake for sale and a customer asked. its not a Wheiand but a Mopar intake.
OK, then I'd tell him on a worked 440 it would be good for a range of 3000 - 8000. Then add a thousand for the short stroke engines.
(say "Why-And" LOL!)
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Re: Tunnelram RPM range
[Re: Rob C]
#1631149
06/11/14 06:22 PM
06/11/14 06:22 PM
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Joined: Jun 2010
Posts: 462
Stockholm, Sweden
fed
OP
mopar
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OP
mopar
Joined: Jun 2010
Posts: 462
Stockholm, Sweden
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Thanks for the knowledge!
Cuda, -70
Valiant-65 AWB,
Valiant Signet200 -65 Topchopped dragcar.
Topolino Fuel Altered.
NostalgiaFED Sold,
SuperComp Bantam Altered, Sold
Ex Harlan Thompsons Nitro funny car American Graffiti Sold,
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