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My 410 Magnum on the engine dyno
#1238372
05/23/12 07:13 PM
05/23/12 07:13 PM
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Joined: Nov 2004
Posts: 226
lino lakes,MN
onebaddakota
OP
enthusiast
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OP
enthusiast
Joined: Nov 2004
Posts: 226
lino lakes,MN
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I'm heading to the dyno. This a 40 over magnum 360 with 4" forged crank,H beams, and flat tops. It retains the factory hydr. roller setup. The cam is a racer brown 248/252@50 with 608 lift. Compression came in at 11.8:1. Carb is a 950hp.It's also on E85. Intake is a ported M1 with a fully ported eddy magnum that flows 290s at 600 lift. Headers are a little bit of a compromise. They are a midlength with 1 3/4 primary and 3" collector. The cam is a little bit out there for the factory hydraulic roller stuff. I don't know of anyone running that much lift on a magnum set up. To control it, I'm running a nitrided PAC beehive with titanium retainer and a stud girdle.It's on the racier side for a magnum to be sure. I don't know really know what to expect.There's just not a ton of info on magnums with this type of build.
Place your bets boys!
10.56 at 125.6, with a 1.43 60 ft.
E85, Hyd. Roller 410 magnum,full exhaust, 3500 race weight.
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Re: My 410 Magnum on the engine dyno
[Re: onebaddakota]
#1238373
05/23/12 09:25 PM
05/23/12 09:25 PM
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Joined: May 2005
Posts: 1,130
Dayton, Ohio
wldtm
super stock
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super stock
Joined: May 2005
Posts: 1,130
Dayton, Ohio
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about 530hp I am guessing!
Interested in having you car wired? Drag car, street car, EFI swap?
PM for details
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Re: My 410 Magnum on the engine dyno
[Re: wldtm]
#1238374
05/24/12 03:02 AM
05/24/12 03:02 AM
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Joined: Jan 2003
Posts: 6,266
Renton Washington
Triple Threat
master
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master
Joined: Jan 2003
Posts: 6,266
Renton Washington
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545hp
How does this compare to the old engine combo that put down the times in your sig?
-Dustin
67 Dart, 9 second, 392" G3 Hemi
68 Barracuda 340 F/SA
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Re: My 410 Magnum on the engine dyno
[Re: Triple Threat]
#1238375
05/24/12 07:17 AM
05/24/12 07:17 AM
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Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
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"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion.
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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Re: My 410 Magnum on the engine dyno
[Re: onebaddakota]
#1238380
05/24/12 12:09 PM
05/24/12 12:09 PM
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Joined: Nov 2004
Posts: 226
lino lakes,MN
onebaddakota
OP
enthusiast
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OP
enthusiast
Joined: Nov 2004
Posts: 226
lino lakes,MN
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I didn't really know what to expect with this motor as some of it is a bit unproven. Would I have a stable valve train to 6500? How bad would the heads and hyd roller hold me back? Well we get it warmed and start loading it up and seems a little rich we pull 3 jets and make our first clean pull to 6300rpm. 555 Hp I'm happy with that. I was hoping for 550HP after all was said and done. The motor liked 34 degrees. We were now on to carb spacers. I was prepared to be unimpressed. We put a 1" super sucker 4 hole. We let her buck and were stunned to see: 582HP@6300 and 532 TQ@ 5300 The dyno shop says he sees that type of gain about once a year. He theorized that it was a fuel distribution problem given the extra volume needed to run E85. We threw a dominator on just for fun and made 594HP!!Tq went up to 543@5300Ron told me to throw some real headers on for an easy 600+. I am blown away by those numbers. Myself and the others were pretty sure it wouldn't make over 550. Does this sound right to you guys? Did the E85 pick me up that much? I asked Ron at R and R about his dyno-whether it was a "happy dyno" or not. He told me he dynos more motors than anyone in the midwest and if anything; it's stingy! I guess will see when it slips into the truck.
10.56 at 125.6, with a 1.43 60 ft.
E85, Hyd. Roller 410 magnum,full exhaust, 3500 race weight.
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Re: My 410 Magnum on the engine dyno
[Re: onebaddakota]
#1238381
05/24/12 01:25 PM
05/24/12 01:25 PM
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Joined: Apr 2005
Posts: 12,271
Overpriced Housing Central
RobX4406
I Live Here
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I Live Here
Joined: Apr 2005
Posts: 12,271
Overpriced Housing Central
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Yep, those hyd rollers don't work...  Nice job, hope it runs as good as the dyno numbers show. Maybe a 1 3/4-1 7/8 step, 35-36" and 3.5 collector might work well. Straight 1 7/8", same lengths and collector would be pretty good too.
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Re: My 410 Magnum on the engine dyno
[Re: Triple Threat]
#1238390
05/24/12 11:07 PM
05/24/12 11:07 PM
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Joined: Oct 2007
Posts: 3,978
Hilltown Pa
1967dartgt
master
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master
Joined: Oct 2007
Posts: 3,978
Hilltown Pa
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Wow nice numbers. Good luck with it.
Brett Miller W9 cnc'd heads
STR Chassis fabraction
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You funny
I will bet you are ready to bolt it in the Dakota. Are you going to have to make any converter and gear changes ? Nice combo, good luck.
