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Re: Dynoing a 408 tomorrow; guesses on hp?
[Re: gregsdart]
#2358731
08/23/17 07:53 PM
08/23/17 07:53 PM
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Joined: Jan 2003
Posts: 10,010
Frostbitefalls MN (Rocky&Bullw...
gregsdart
OP
I Live Here
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OP
I Live Here
Joined: Jan 2003
Posts: 10,010
Frostbitefalls MN (Rocky&Bullw...
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Numbers are in!
504 hp at 5700, 518 TQ at 4600.
1 3/4 dyno headers. No time to test the TTIs.
A big thanks to Brian Halfeger at IMM, and Brian Hanson at R&R performance. Brian at IMM picked out the cam, carb, and the basic head configuration, and supplied a lot of those parts. Brian at R&R did the EQ heads and machine work. A big thanks to Ron Quanstrom of R&R for his expertise in finding the power on the dyno!
Last edited by gregsdart; 08/23/17 07:58 PM.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: Dynoing a 408 tomorrow; guesses on hp?
[Re: 451Mopar]
#2358758
08/23/17 09:04 PM
08/23/17 09:04 PM
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Joined: Aug 2011
Posts: 2,861
Pattison Texas
CSK
master
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master
Joined: Aug 2011
Posts: 2,861
Pattison Texas
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Well I was off on the low side by 9 HP, and 13 ft/lbs. Must be the carb spacer  LOL that was my thought also HAHA.
1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5
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Re: Dynoing a 408 tomorrow; guesses on hp?
[Re: gregsdart]
#2358840
08/23/17 11:49 PM
08/23/17 11:49 PM
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Joined: Jan 2006
Posts: 132
Kingman, Az
Scojodak
member
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member
Joined: Jan 2006
Posts: 132
Kingman, Az
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Nice Greg. I was 4 off on hp, 7 off on tq. Good, now I have an idea on my power output.
Dakota for life!
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Re: Dynoing a 408 tomorrow; guesses on hp?
[Re: gregsdart]
#2358845
08/23/17 11:58 PM
08/23/17 11:58 PM
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Joined: Jan 2003
Posts: 10,010
Frostbitefalls MN (Rocky&Bullw...
gregsdart
OP
I Live Here
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OP
I Live Here
Joined: Jan 2003
Posts: 10,010
Frostbitefalls MN (Rocky&Bullw...
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I am VERY pleased. I didn't port match the intake, but did get quench down to .039. If the Dart the motor is going in is light enough (3,100?) the car might be capable of a 10.99.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: Dynoing a 408 tomorrow; guesses on hp?
[Re: gregsdart]
#2359148
08/24/17 02:28 PM
08/24/17 02:28 PM
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Joined: Sep 2014
Posts: 4,457
Washington
madscientist
master
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master
Joined: Sep 2014
Posts: 4,457
Washington
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In the first post you said 1.875 headers and in the post with the dyno numbers you said 1.750 headers.
Which headers did you use?
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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