CHRISPY

What are the C5 Corvette MTI Superstrokers dynoing through cats and full exhaust? Both Ls1 and LS6 headed.
Thanks again,
Chris

Nine Ball

iTrader: (38)

With the standard R1 camshaft (232/237) they are pulling around 480 rwhp thru stock cats and a catback.

Nobody really puts the cats on their car when they opt for the more rowdy S1 (244/244) camshaft, so I don't have any numbers to report there.

Most R1/LS6 422ci setups pull somewhere around 500 rwhp with no cats. LS1 heads are about 10-12 rwhp less. S1 cammed 422ci setups pull in the 510-520 rwhp range with no cats.

Then there are guys like PaiN and Colonel that pull around 530 rwhp with open headers.

I'll dyno mine with open headers soon, before we build the new 3" Y-pipe setup.

Tony

CHRISPY

That is interesting information. So with Ls6 heads and cats around 480RWHP? Offroads with LS6 heads ~500 through full exhaust?
Thanks again,
Chris

Toxic Texan

Here is weatherguy's dyno chart.

More dyno's in my sig. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

EuG

Chris,
Here’s the info from best I can remember:

from Corvetteforum.com
</font></li>[*]<font size="2" face="Verdana, Helvetica, sans-serif"> Tom (nevrenuf) M6 C5 Coupe, MTI 422
LS6 heads
R1 (232/237 .560/.560 114) - 488rwHP/480rwTQ
242/242 .610/.610 113LS - 495rwHP/470rwTQ
pretty sure – off road setup
Not sure if it’s through cutout of full exhaust
Not sure on octane….
<no graph>
</font></li>[*]<font size="2" face="Verdana, Helvetica, sans-serif"> NoMercy Z06, MTI 422
LS6 heads (duh <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> )
S1 (244/244 .612/.612 112LS) –
Off road setup
Through cutouts
NoMercy mentioned that the setup/tune requires race fuel to avoid pinging
509rwhp/488rwtq
http://temp.corvetteforum.net/c5/nomercy/dynoz07.jpg (cut and past the address into a new window)
</font></li>[*]<font size="2" face="Verdana, Helvetica, sans-serif"> jmC5 Z06, MTI 422 (a while back - Feb 2001)
LS6 heads (duh <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> )
R1 Cam
I think off road setup
Cutouts (removed mufflers)
Was tuned on pump gas buy jmC5 posted since that that car pings on pump gas, so he’s running 100octane
503rwHP/506rwTQ
<img src="http://users.ev1.net/~ynot_dv8/422Z06dyno.jpg" alt=" - " />
</font></li>[*]<font size="2" face="Verdana, Helvetica, sans-serif"> sorry I forgot the handle, but it was something like Mag Red 99 or something like that
’99 M6 C5 Vert, MTI 422 ( a while back too – really going by memory now <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> )
LS1 heads
R1 cam
Random Tech Hi-Flow cats
Full exhaust
No idea on octane, but most likely pump gas.
If I remember correctly he put down: ~470rwHP/470rwHP
<no graph>

from Ls1tech.com
</font></li>[*]<font size="2" face="Verdana, Helvetica, sans-serif"> WeatherGuy M6 F-Body, MTI 422
LS6 heads
R1 cam
I think offroad setup
Through exhaust ~480rwHP/ don’t know TQ
Through cutout ~490rwHP/ don’t know TQ
(Please someone correct me if I got these numbers wrong – not 100% sure)
No idea on octane
< there was a graph of both runs somewhere on this forum>
</font></li>[*]<font size="2" face="Verdana, Helvetica, sans-serif">Jason 98 TA, M6 98 TA, MTI 422
LS1 heads (I think)
R1 cam
Off road setup
Not 100% on cutout
No idea on octane
487rwHP/482rwTq
<img src="http://www.agrnet.com:8888/Dyno/MTI422Dyno.jpg" alt=" - " />

Hope this helps…

CHRISPY

K thanks, that is right on par with cars I am seeing up here through cats anbd full exhaust 475-485ish RWHP and 480RWTQ
Chris

<small>[ July 25, 2002, 12:57 PM: Message edited by: Chris ARE 360 ]</small>