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Blower cam recommendations please #3276650
12/17/24 12:48 PM
12/17/24 12:48 PM
Joined: May 2004
Posts: 12,524
Taxes & Virus's R-US, NY
Dragula Offline OP
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Dragula  Offline OP
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So I am rebuilding my 400/512 and going to, if I can afford it, put a TorqueStorm on it. I have it all apart, and new bearing and a few other parts are on order already....

Its a 440Source 400/512 with a girdle and Indy 325 heads with 2.19 intake valves...

So I am going with 10:1 compression, and shooting for 7psi boost...And street and drag it...

I have another blower motor built by a friend and was wondering if this same cam would be a good choice....He said it made real good power.

IMG_20241211_170022 (1).jpg

'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: Blower cam recommendations please [Re: Dragula] #3276669
12/17/24 02:16 PM
12/17/24 02:16 PM
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N.E. Ohio
6bblFLASH Offline
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In my experience, yes that cam would work.
Power band is probably fairly high.
What gear/converter etc ...do you have in mind?
I run a small Roots blower and it sees 7lbs.peak.
My cam is 236/242@.050 .501 lift
110 c/l.
Has gone 10.48 @3,600lbs 440in motor ,3.33 gears ratio.
Shift at 5200/5300.
Again my opinion, 110 C/L is the best compromise.
I've tried 6 different cams,110..112..114...
110 gives best idle,cruise,response and ET. In my car.
I know there is power left on the table with a "regular " cam.
But the blower is going to rule the max power more than the cam.
Wrong cam will just hurt lower RPM torque. and effect idle quality.
Boosted stuff will run better under-camed. ,,,Max EFFICIENT blower speed is the ceiling..not the cam...


70` Cuda`,440 6BBL Jerico,Dana 4.56 Still on 93 Pump Gas
9.87 @ 136/1.31-60ft.`09 Mopar Nationals PASSON PERFORMANCE "Stick-Shift" Champ!
2013 StickShift Challenge Winner@ Mopar Nationals!
Re: Blower cam recommendations please [Re: 6bblFLASH] #3276677
12/17/24 02:40 PM
12/17/24 02:40 PM
Joined: May 2004
Posts: 12,524
Taxes & Virus's R-US, NY
Dragula Offline OP
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Dragula  Offline OP
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Gearing is 3.73 with either a 31x16 cheater slick or 315 drag radial.

Convertor is a blown A gas 9.5 or 9.0 from ATI

Weight will be 3100 car + my 250....


'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: Blower cam recommendations please [Re: Dragula] #3276680
12/17/24 02:56 PM
12/17/24 02:56 PM
Joined: Jan 2003
Posts: 3,867
N.E. Ohio
6bblFLASH Offline
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N.E. Ohio
How fast/ET are you shooting for?
Blower speed will factor in as well.
I'd ask a cam shop...Comp etc..to ballpark what you are already thinking 🤔


70` Cuda`,440 6BBL Jerico,Dana 4.56 Still on 93 Pump Gas
9.87 @ 136/1.31-60ft.`09 Mopar Nationals PASSON PERFORMANCE "Stick-Shift" Champ!
2013 StickShift Challenge Winner@ Mopar Nationals!
Re: Blower cam recommendations please [Re: 6bblFLASH] #3276681
12/17/24 02:59 PM
12/17/24 02:59 PM
Joined: May 2004
Posts: 12,524
Taxes & Virus's R-US, NY
Dragula Offline OP
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Dragula  Offline OP
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Shooting for 9.50 or quicker...

Car should be right around 3100 plus my 250.....With the big Hemi its 3204lbs...And that Callies block is like +300lbs..

Last edited by Dragula; 12/17/24 03:23 PM.

'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: Blower cam recommendations please [Re: Dragula] #3276689
12/17/24 03:43 PM
12/17/24 03:43 PM
Joined: Jan 2003
Posts: 14,554
So. Burlington, Vt.
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fast68plymouth Offline
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I’ll throw in my .02…..

My impression of the TS blowers is they aren’t terribly efficient.

Putting one on a 500+ cube build with bigger heads and a long duration camshaft is going to require spinning the blower harder to make the desired boost.

For that combo I’d run a shorter cam(than the card in the pic).


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Blower cam recommendations please [Re: fast68plymouth] #3276710
12/17/24 05:34 PM
12/17/24 05:34 PM
Joined: Jan 2003
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N.E. Ohio
6bblFLASH Offline
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Originally Posted by fast68plymouth
I’ll throw in my .02…..

My impression of the TS blowers is they aren’t terribly efficient.

Putting one on a 500+ cube build with bigger heads and a long duration camshaft is going to require spinning the blower harder to make the desired boost.

For that combo I’d run a shorter cam(than the card in the pic).




That's been my experience too...don't overcam...


70` Cuda`,440 6BBL Jerico,Dana 4.56 Still on 93 Pump Gas
9.87 @ 136/1.31-60ft.`09 Mopar Nationals PASSON PERFORMANCE "Stick-Shift" Champ!
2013 StickShift Challenge Winner@ Mopar Nationals!
Re: Blower cam recommendations please [Re: fast68plymouth] #3276713
12/17/24 06:08 PM
12/17/24 06:08 PM
Joined: May 2004
Posts: 12,524
Taxes & Virus's R-US, NY
Dragula Offline OP
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Dragula  Offline OP
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Originally Posted by fast68plymouth
I’ll throw in my .02…..

My impression of the TS blowers is they aren’t terribly efficient.

Putting one on a 500+ cube build with bigger heads and a long duration camshaft is going to require spinning the blower harder to make the desired boost.

For that combo I’d run a shorter cam(than the card in the pic).


Just for reference, that cam is currently in a +.030 440 I have, that is not stroked....


'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: Blower cam recommendations please [Re: Dragula] #3276749
12/17/24 08:32 PM
12/17/24 08:32 PM
Joined: Jan 2003
Posts: 31,303
Oregon
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AndyF Offline
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If you already have that cam then sure, it will work. If you are going to buy a new cam then I wouldn't buy that particular one. I don't think you need that much split with a blower since you'll have more cylinder pressure.

Re: Blower cam recommendations please [Re: AndyF] #3276763
12/17/24 09:15 PM
12/17/24 09:15 PM
Joined: May 2004
Posts: 12,524
Taxes & Virus's R-US, NY
Dragula Offline OP
I Live Here
Dragula  Offline OP
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Originally Posted by AndyF
If you already have that cam then sure, it will work. If you are going to buy a new cam then I wouldn't buy that particular one. I don't think you need that much split with a blower since you'll have more cylinder pressure.


So the 259/270 split is a bit much?

Most of the cams I look up on Comps sight for the 440 have a pretty big split. I hate their web page though, I could not find any cams for boost. I am figuring for the street, somthing right around 260 or less would be nice. I will call one of their reps and see I guess.

That is the current cam in my +.030 440 that I will probably put a roots blower on someday....It has the TF270 's on it. This engine I need a blower cam for has Indy EZ 325's upgraded to 2.19 valves. Figured they are probably pretty close as far as flow...

Last edited by Dragula; 12/17/24 09:34 PM.

'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: Blower cam recommendations please [Re: Dragula] #3276785
12/17/24 10:17 PM
12/17/24 10:17 PM
Joined: Jan 2003
Posts: 31,303
Oregon
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AndyF Offline
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The best cam that Dwayne and I came up with for my TF head testing was a 264/268 solid roller. That cam made close to 800 hp on a pump gas 470 inch engine with TF270 heads and a heavily ported intake. That was NA.

Re: Blower cam recommendations please [Re: AndyF] #3276812
12/18/24 05:42 AM
12/18/24 05:42 AM
Joined: May 2004
Posts: 12,524
Taxes & Virus's R-US, NY
Dragula Offline OP
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Dragula  Offline OP
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That's a bunch...And I wish I could get that out of one of ours. Is that the one you did the dry sump on?

Best we have done is right around 720hp according to the Wallace calc. with this combo NA ...at 512 cubes...Not exactly sure what we will get with a TorqueStorm at 7psi, but I think I can have less cam and compression, and gain a little drive-ability, but make really good HP...


'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: Blower cam recommendations please [Re: Dragula] #3276865
12/18/24 10:57 AM
12/18/24 10:57 AM
Joined: Jan 2003
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N.E. Ohio
6bblFLASH Offline
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7 lbs should add about 150/175ish HP.. twocents


70` Cuda`,440 6BBL Jerico,Dana 4.56 Still on 93 Pump Gas
9.87 @ 136/1.31-60ft.`09 Mopar Nationals PASSON PERFORMANCE "Stick-Shift" Champ!
2013 StickShift Challenge Winner@ Mopar Nationals!
Re: Blower cam recommendations please [Re: fast68plymouth] #3276868
12/18/24 11:13 AM
12/18/24 11:13 AM
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Lake Villa Il
INTMD8 Offline
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Originally Posted by fast68plymouth
I’ll throw in my .02…..

My impression of the TS blowers is they aren’t terribly efficient.

Putting one on a 500+ cube build with bigger heads and a long duration camshaft is going to require spinning the blower harder to make the desired boost.

For that combo I’d run a shorter cam(than the card in the pic).


Agree 100%


69 Charger. 438ci Gen2 hemi. Flex fuel. Holley HP efi. 650rwhp @7250 510rwtq @5700






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