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Re: back from the dyno!
[Re: Cab_Burge]
#1372565
01/24/13 02:58 AM
01/24/13 02:58 AM
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Joined: Jul 2006
Posts: 4,179
California
mickm
OP
master
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OP
master
Joined: Jul 2006
Posts: 4,179
California
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Quote:
I still cringe (butthole still puckers up real tight) every time one of my new motors or a customers motors goes to full throttle against the water brake on the engine dyno the first cuople of times
can't tell you how nice it is to heat that! i also can't tell you how nervous i was going in there. first time he cranked it over, it cranked for about 3-4 seconds and then fired. my eyes got big and i thought "holy $hit, it works!" then it died after he let off throttle and i had this sinking feeling in my stomach, and he just said, "needs more timing."
so we adjusted it by sight, fired it up, and it purred like a kitten. i was awe struck! when we started doing the pulls, yup, butthole clenched right up! but after it made it to the first 5700 RPM pull, i figured it was going to be all right.
wow! what an experience!
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Re: back from the dyno!
[Re: mickm]
#1372566
01/24/13 01:47 PM
01/24/13 01:47 PM
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Joined: Jul 2006
Posts: 4,179
California
mickm
OP
master
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OP
master
Joined: Jul 2006
Posts: 4,179
California
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head flow #'s,
exhaust
.100 62
.200 141
.300 186
.400 230
.500 257
.550 268
.600 279
.650 288
.700 294
.750 297
.800 300
intake
.100 74
.200 161
.300 248
.400 315
.500 382
.550 410
.600 434
.650 449
.700 454
.750 458
.800 463
tests performed on Superflow 600 with FlowCom
2.30" intake valve and 1.90" exhaust valve.
Combustion chamber 168cc
Intake volume 241cc
Exhaust volume 118cc
Last edited by mickm; 01/24/13 02:20 PM.
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Re: back from the dyno!
[Re: astjp2]
#1372568
01/24/13 02:23 PM
01/24/13 02:23 PM
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Joined: Jul 2006
Posts: 4,179
California
mickm
OP
master
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OP
master
Joined: Jul 2006
Posts: 4,179
California
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Quote:
I may have to look at CNC porting mine, I only had 367 at .6 and it was only 373 at .700, so I probably will come up short on power compared to yours. Tim
while that isn't bad, it will hurt on the power. tim, and others out there do some pretty amazing sutff with CNC.
it's just what you want in the end. the 472 has mopar aluminum heads that have been mildly ported, and flow about 330 @ .600. when i rebuild it, i don't know that i'm going to spend the money to have them done, or just call it a day and have it be a milder motor.
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Re: back from the dyno!
[Re: mickm]
#1372569
01/25/13 02:32 AM
01/25/13 02:32 AM
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Joined: Jan 2011
Posts: 4,785
Utah and Alaska
astjp2
master
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master
Joined: Jan 2011
Posts: 4,785
Utah and Alaska
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Mine is going into a street car so I think that I have more than enough horsepower, with a pair of 770 quick fuel carbs with annual boosters in the primaries, and 30 more cubic inchs, I am still a real power house. I did upgrade to the Jana 76 axle, that was a time consuming but learning project over the holidays. With only 9.5-1, I can travel anywhere and fill up. My goal is to drive it as much as I can afford to, as long as gas prices remain tolerable. Tim
1941 Taylorcraft
1968 Charger
1994 Wrangler
1998 Wrangler
2008 Kia Rio
2017 Jetta
I didn't do 4 years and 9 months of Graduate School to be called Mister!
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Re: back from the dyno!
[Re: astjp2]
#1372570
01/25/13 03:50 PM
01/25/13 03:50 PM
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Joined: Jul 2006
Posts: 4,179
California
mickm
OP
master
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OP
master
Joined: Jul 2006
Posts: 4,179
California
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Quote:
Mine is going into a street car so I think that I have more than enough horsepower, with a pair of 770 quick fuel carbs with annual boosters in the primaries, and 30 more cubic inchs, I am still a real power house. I did upgrade to the Jana 76 axle, that was a time consuming but learning project over the holidays. With only 9.5-1, I can travel anywhere and fill up. My goal is to drive it as much as I can afford to, as long as gas prices remain tolerable. Tim
methinks you will have more than the car can handle! 
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