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: 10,088 Frostbitefalls MN (Rocky&Bullw...
gregsdart
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I Live Here
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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.
8.582, 160.18 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: 2,905 Pattison Texas
CSK
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master
Joined: Aug 2011
Posts: 2,905
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
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member
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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: 10,088 Frostbitefalls MN (Rocky&Bullw...
gregsdart
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I Live Here
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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.
8.582, 160.18 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
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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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