HSR and cam Dyno
07-01-2004, 05:27 AM
#1
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HSR and cam Dyno
Just got back from MN where we did a dyno run in spite of a snapped throttle cable. My new cam specs are 230/236 - 110 lobe sep, 108 intake centerline (2 deg. advanced). Lift with 1.6/1.5 rockers is .622 / .570". This is with AFR 190 heads and a 383 SB. Maybe this winter I will take it apart and port the heads and intakes. Max Torque is 447.6 and Max HP is 411.6. We did back to back runs with and without the SLP cold air unit and found that the unit cost me about 20 HP. Will have to fab a better intake unit for the future.
BTW, we also tuned the chip till we got those numbers so it wasn't just a dyno run to get the graphs. This was done at HiTech Motorsport in Ramsey, MN.
BTW, we also tuned the chip till we got those numbers so it wasn't just a dyno run to get the graphs. This was done at HiTech Motorsport in Ramsey, MN.
07-01-2004, 06:51 AM
#2
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Join Date: Aug 2001
Location: Litchfield Park, AZ
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hmm... granted i have a few more cubes.. but i think u have more of a stroke.. anywho.. we r pretty close in #'s.. i ment to get a dyno done with this new stuff ive done inthe last year *these dyno #'s were with small injectors, no tuning and about 20 other minor things* i was thinking about going 2 a HSR.. but the #'s ive been seeing havent really convinced me to leave my TPI style. but no matter what AWESOME #'s!!! get soem track tiems and see what u can do!
07-01-2004, 09:02 AM
#4
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Location: Jax, FL
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Good numbers. Those sound like the lobes I have on my cam. 230-236 .622-.624 with 1.6 rockers, but mine is on a 114 lsa, 110 ic. Changing cams to a 110 lsa and hope to make some more power. All I got with the above cam was 345 rwhp, but everything was not perfect.
07-01-2004, 01:34 PM
#8
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Originally posted by doug791
That sounds pretty much exactly what id expect. 450 hp at the engine, 411 at the wheels. You should be able to smoke zome z06's with that power.
That sounds pretty much exactly what id expect. 450 hp at the engine, 411 at the wheels. You should be able to smoke zome z06's with that power.
I will try smoke them when I have repaired the car. It still has a broke throttle cable.
07-01-2004, 03:02 PM
#9
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Location: Markham, ON
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sorry i didnt really do any math just took a stab at it. With those numbers its probably closer to around 500 horsepower definitly impressive. I guess thats probably getting close to the limits of what you can do with a N/A 383 sbc and still have it streetable. Again very nice
07-01-2004, 03:09 PM
#10
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I can't do anything about the piston or the rings but i can certainly change my intake from the filter to the TB. Taking off my SLP system made an instant 20HP last night so we know where the restriction is. Also I will take off the heads this winter and convert them to an AFR 195 via porting and also have the HSR ported and make a few more ponies. When my throttle cable gets done, it will be time to go on the prowl for a few vettes.
07-02-2004, 12:35 PM
#15
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Location: San Diego, CA
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Nice numbers especially with untouched AFR 190s and HSR...I run a 230/236 but on a 112 LSA and less lift on a 350. Otherwise we have the same setups, right down to the TB! Your numbers sound promising as I'm hoping to put down at least 360 rwhp.
I especially like the torque numbers, that should dispell the myth about lack of torque with the HSR.
You should be doing easy 11s.
I especially like the torque numbers, that should dispell the myth about lack of torque with the HSR.
You should be doing easy 11s.