Are these #'s weak??

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May 26, 2009 | 08:06 AM

#21

burnout346

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From: Longview, Texas

Quote:

Originally Posted by SS1875

Ran my car on a Portable Dyno (unsure of the name) during a tune party (non sponsor).

Car put down 466 RWHP/ 460 RWTQ NA

Car specs: 383 stroker, LS6 heads- 2.02/1.60 59cc ,Fast 90mm intake, NW 90mm TB, 236/242 624/609 113+3 JPH Cam, FTRA and 85mm Lid, 85mm MAF, T56, Strange 3" CMDS, MWC Fab 9" 3.89 gears, 17X11 ZR1's

My 383 put down 498.5rwhp & 541.7 on a dynojet , but that was with a stock rear with 4:10s and my heads are ported, polished & milled. What's your compression?

May 26, 2009 | 09:59 AM

#22

SS1875

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Quote:

Originally Posted by burnout346

My 383 put down 498.5rwhp & 541.7 on a dynojet , but that was with a stock rear with 4:10s and my heads are ported, polished & milled. What's your compression?

11.2-1.... What supporting cast did/do you have?...I/E intake, cam etc. Are those NA numbers..no power adder? Big discrepancy in the torque (81.7 Ft/lbs) even for a Dynojet. On a Dynojet with my old cam, 12 bolt/ 4:10s and a ported Fast 90mm intake it only did 484rwhp/440rwtq.

Last edited by SS1875; May 26, 2009 at 10:09 AM.

May 26, 2009 | 12:43 PM

#23

burnout346

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From: Longview, Texas

[QUOTE=SS1875;11656100]11.2-1.... What supporting cast did/do you have?...I/E intake, cam etc. Are those NA numbers..no power adder? Big discrepancy in the torque (81.7 Ft/lbs) even for a Dynojet. On a Dynojet with my old cam, 12 bolt/ 4:10s and a ported Fast 90mm intake it only did 484rwhp/440rwtq.

Air lid, MAF, ported TB, ls1 intake, stock injectors, mid length headers, off road y-pipe, cutout. All motor. Old setup.

May 26, 2009 | 12:48 PM

#24

burnout346

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From: Longview, Texas

I found 3 loose plugs and a split plug wire after the dyno. Was also running lean. New setup is just upgraded to full length headers, true duels, 42# injectors, 9 inch!

May 26, 2009 | 12:49 PM

#25

burnout346

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12.6:1 compression ratio.

May 26, 2009 | 01:04 PM

#26

burnout346

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Ls1 243 castings.

May 26, 2009 | 03:49 PM

#27

mike c.

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They are strong #'s. same hp as my lil 346ci but your tq is much higher. a set of afr 205 heads would bring another 20hp or so.

May 26, 2009 | 04:28 PM

#28

SS1875

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From: Ft. Wayne, Indiana

Quote:

Originally Posted by mike c.

They are strong #'s. same hp as my lil 346ci but your tq is much higher. a set of afr 205 heads would bring another 20hp or so.

Thanks, the cam is more for the Nitrous setup so a little sacrifice is needed NA I suppose. If I decide Nitrous is not for me I will be thinking about different heads and the new cam would be on similar lobes but would get bumped to 252/258 630/630 112 (or something similar).