383 stroker results
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From: harrisburg, pa
383 stroker results Callies stroker kit
Rapid Stage 2 LS1 heads 66cc
242/250 .595/.595 109 cam
LSX 90mm
Stock Compression Ratio
Kooks 1 7/8" ORY LM
Steel Driveshaft and flywheel
Moser 4:11 85W140 oil
Stock 17" tires/wheels
No Vacuum pump or electric water pump
10W40 castrol dino oil
477 rear wheel Horsepower
440 Rear wheel torque
Car feels and sounds like a monster. Thats all I can say. Cant ask for a better daily driver.
Mikey will post the graphs
Thanks to Chip and Susan for doin a great job. I highly recommend Phoenix performance for Dynoing and Rapid for customer service/tuning.
Rapid Stage 2 LS1 heads 66cc
242/250 .595/.595 109 cam
LSX 90mm
Stock Compression Ratio
Kooks 1 7/8" ORY LM
Steel Driveshaft and flywheel
Moser 4:11 85W140 oil
Stock 17" tires/wheels
No Vacuum pump or electric water pump
10W40 castrol dino oil
477 rear wheel Horsepower
440 Rear wheel torque
Car feels and sounds like a monster. Thats all I can say. Cant ask for a better daily driver.
Mikey will post the graphs
Thanks to Chip and Susan for doin a great job. I highly recommend Phoenix performance for Dynoing and Rapid for customer service/tuning.
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From: Austin, TX
Stock compression? If you have 66cc chambers, say...5cc valve reliefs, the pistons still pop .007" out of the hole (like stock), and you use a .46-.52 gasket (which I think is clost to stock and/or the felpro set...you're at like 10.8-11:1. 
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From: Kansas City, MO
Something is off. 66cc is less than 1cc under stock, the valve reliefs (if he has them)are going to drop it a bit. If everything else is the same, he's going to be around stock compression. I just don't understand why they didn't bump it up to 10.8:1 - 11.0:1. It would help out that cam quite a bit and bring a little of his torque back in.
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From: SC
Not bad at all, congratulations! The results are similar to my all-bore numbers peak wise (although I have about 7ci on you) , Id love to see the graph because that 109 LSA is probably giving you really nice area under the curve too.
My best dyno was 478/455, last dyno after it got rebuilt was 475/450. Im using a 242/242 lunati cam, LS6 intake, same rear, qtp 1 3/4" headers, cutout. If you arent using a cutout, thats a good idea for the track and will pick you up some more ponies.
Looks like we'd be a pretty close race again...remember when you had a T1 and I had a B1 and we were running at beaver springs? Be fun to see how they stack up now.
My best dyno was 478/455, last dyno after it got rebuilt was 475/450. Im using a 242/242 lunati cam, LS6 intake, same rear, qtp 1 3/4" headers, cutout. If you arent using a cutout, thats a good idea for the track and will pick you up some more ponies.
Looks like we'd be a pretty close race again...remember when you had a T1 and I had a B1 and we were running at beaver springs? Be fun to see how they stack up now.
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From: harrisburg, pa
First of all they was me..built it with the help of a buddy. I was hoping for a little higher compression ratio but I think the valve reliefs and extra stroke are about a wash. I ran it on 92 octane without a hint of detonation. I did not want a high lift cfm LS6 head since it is 99% daily driver and 1% track and an extra $1000 without core. Im sure with small cc LS6/4.8L heads and all the other tricks it would have been well over 500rwhp..the big headers are hurting the bottom end too. Maybe Im wrong..but this is how I drive it everyday..no dyno tricks..or exotic parts
Cool Eric..but why would a cut out be better than a loudmouth?
Maybe I'll go sleeved block and race heads next time.....and give up city drivin...
Cool Eric..but why would a cut out be better than a loudmouth?
Maybe I'll go sleeved block and race heads next time.....and give up city drivin...
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Originally Posted by niphilli
Wow, big testament to Rapids LS1 stage 2 heads. Nice setup!
Mike~ These heads any different from the typcal stage 2s you use in 346 applications?
Mike~ These heads any different from the typcal stage 2s you use in 346 applications?
Originally Posted by VINCE
Very nice setup.. Thats a nice sized cam.. How does it idle? What rpm?
Originally Posted by mikey
This is a Rapid custom specified cam that I originally intended for a 422 CI motor but has worked well in smaller displacement motors. It lopes real hard but if tuned right, runs real well on the street. It will idle as low as 950 rpm in a 382 but I opted for 1000 to smooth things out a little. At 950 it sounds like a pro-mod car
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From: harrisburg, pa
Today was a good day...took off work...dynoed some great numbers..met some cool people....and had a beautiful girl wrenching on my car...does it get any better?... If your ever in Harrisburg give me a holler Susan..I.O.U. lol. Im sure I'll see you kicking *** at the track.
Big thanks to my buddy Mark..PAZ06..for all his help and couldnt have done it without him...now he is off building the baddest tow vehicle around...496 stroker Suburban..cant wait to dyno that..
Cam sounds wicked...need to lower the idle mikey so it lopes real hard......bummmpppittyy bummmpp
Big thanks to my buddy Mark..PAZ06..for all his help and couldnt have done it without him...now he is off building the baddest tow vehicle around...496 stroker Suburban..cant wait to dyno that..
Cam sounds wicked...need to lower the idle mikey so it lopes real hard......bummmpppittyy bummmpp
honestly with that size cam and a 90mm lsx, your numbers seem a little low.... assuming you have ASP's also. I would think closer to 500rwhp and 460+ rwtq would be closer. what kind of dyno was it?
Originally Posted by 383ss
honestly with that size cam and a 90mm lsx, your numbers seem a little low.... assuming you have ASP's also. I would think closer to 500rwhp and 460+ rwtq would be closer. what kind of dyno was it?
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From: SC
Originally Posted by SAM98WS6
First of all they was me..built it with the help of a buddy. I was hoping for a little higher compression ratio but I think the valve reliefs and extra stroke are about a wash. I ran it on 92 octane without a hint of detonation. I did not want a high lift cfm LS6 head since it is 99% daily driver and 1% track and an extra $1000 without core. Im sure with small cc LS6/4.8L heads and all the other tricks it would have been well over 500rwhp..the big headers are hurting the bottom end too. Maybe Im wrong..but this is how I drive it everyday..no dyno tricks..or exotic parts
Cool Eric..but why would a cut out be better than a loudmouth?
Maybe I'll go sleeved block and race heads next time.....and give up city drivin...
Cool Eric..but why would a cut out be better than a loudmouth?
Maybe I'll go sleeved block and race heads next time.....and give up city drivin...
I would definately get pulled over with a loudmouth...how are you getting away with that?? That must be loud as h*ll and drone like mad on the highway.
Anyhow, American Iron Shootout 3 is at cecil next saturday, see if you can go!