How fast could it go?
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How fast could it go?
3500 lb. chevelle with driver 411 posi 406 sbc stock world heads 202,160 with 200 runners set up for solid cam with 560-580 lift. about 260-265 at 50 degrees. 106 lobe. Super victor intake on E85 fuel and 12/1 compression and 4000 stall with turbo 350 on slicks> What cha think 1 3/4 headers and 3 inch mufflers
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Re: How fast could it go?
Assuming you have stock Sportsman II heads , you will need better heads or do some porting on the ones you have If you want to run 10s .
So much to do, so little time...
Re: How fast could it go?
I agree. Should be able to run low to mid 11’s at around 120 mph
Please keep us updated
Please keep us updated
Re: How fast could it go?
The Sportsman II heads are quite good once correctly ported.. If you want to go fast, do that.
Big power difference vs out of the box as cast and v-job.
This Chevelle will likely run best with a bit more gear than 4.11.. (4.30-4.56 ish) Definatly a full race 8-3/4 9" converter (5000+ stall) if you want a 10 sec Chevelle.
Don't skimp out on these to get that Chevelle motivated.
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Re: How fast could it go?
Just for comparison as my 3650 pound streeter had same converter,rear gear,same size headers and mufflers but 383 SBC as cast Dart 215econo racer wrote: ↑Thu Dec 03, 2020 8:36 am 3500 lb. chevelle with driver 411 posi 406 sbc stock world heads 202,160 with 200 runners set up for solid cam with 560-580 lift. about 260-265 at 50 degrees. 106 lobe. Super victor intake on E85 fuel and 12/1 compression and 4000 stall with turbo 350 on slicks> What cha think 1 3/4 headers and 3 inch mufflers
Heads and running a 255 drag radial.
60 ft-1.81
330ft-4.86
660ft-7.39 @ 97.57mph
1000ft-9.58
1320ft - 11.4s @ 121.54mph
Changed converter only weather similar one week later custom 8" converter 5600 stall
60 ft - 1.52
330 - 4.53
660 - 7.05 @ 97.16mph
1000 - 9.23
1320 - 11.10 @ 120.65mph
7000rpm shift and finish line 6300-6500rpm
I have done a couple of sportsman 2 heads,
You can get 290 cfm at around 210cc
The exhaust port is poor and needs a lot of work but can work great.
I think mid 11s pretty easy
steve c
"Pretty don't make power"
"Pretty don't make power"
Re: How fast could it go?
Shows you how critical getting the torque converter dialed in is..
For this engine/car purpose, if you can find a better
solid FT camshaft than either Isky 201547 or 201549 that gets you down the track better, I'd like to know about it..
Better sft cam in car on track at any price.
For this engine/car purpose, if you can find a better
solid FT camshaft than either Isky 201547 or 201549 that gets you down the track better, I'd like to know about it..
Better sft cam in car on track at any price.
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Re: How fast could it go?
If it doesn't run 11s as it sits, something is seriously wrong.
So much to do, so little time...
Re: How fast could it go?
My pump gas 358 SBC with 200cc World heads went 11.29 this year in so-so air. You will need more stall speed to get the real good ET out of the car, more like a 5200 stall.econo racer wrote: ↑Thu Dec 03, 2020 8:36 am 3500 lb. chevelle with driver 411 posi 406 sbc stock world heads 202,160 with 200 runners set up for solid cam with 560-580 lift. about 260-265 at 50 degrees. 106 lobe. Super victor intake on E85 fuel and 12/1 compression and 4000 stall with turbo 350 on slicks> What cha think 1 3/4 headers and 3 inch mufflers