So I got to talking to Rod (Nitrous Junkie) about some mods to my Z06 since his is pretty nasty. Decided on staying N/A since I like to road Race the car and don't want over heating issues like those you find with S/C LS7's. I went with Lingenfelter goods since they seem to know what they are doing. I had Rod order me the biggest cam they make, the GT21, same one they use in there 660hp package along with getting the heads worked over a little bit . Thanks to Rod's junkyard build he had a set of LS7 heads sitting in his garage so he was nice enough to send them to LPE to get ported, new exhaust valves, springs, retainers, the works, which meant no down time for me!
Once the heads came back, about a week, I dropped my car off with Rod and him and his Dad Norm went to work. I also had a set of LG Super pro headers shipped to Rod's place. A couple days later I went back to Rod's to pick up my car. They were finishing it up and Rod and I went out so he could do a little street tuning. We didn't spend much time with it but it was already running great! The power was very noticeable and the thing just doesn't stop pulling. After a few pulls from 1st-4th I could tell my little stock clutch didn't like the new power as the clutch pedal would start to stick to the floor slightly . I knew it wouldn't last forever the way I drive it anyway .
Here's a vid of how it sounds at idle and a quick vid on the street:
Since then I had Revolutions Performance install a new Monster level 3 clutch (6-puck sprung single w/ light weight flywheel) which I really like so far. It definitely grabs as my first time at Bandimere I blew the right rear CV to bits on the 1-2 shift at 61mph . Big thanks to Rod and Norm for letting me use a spare to get the car home . I installed a pair of C5 axles so hopefully this doesn't happen again.
I'm heading to HPR this Saturday for some road race action and then maybe I'll go back to Bandimere Wednesday to see if I can hit 130mph. Hopefully I don't get kicked out too soon
I'd like to give a BIG thanks to Rod and Norm of DeWild Motorsports for the great job they did on the Heads/cam/headers install and tune and to Revolutions for the clutch install (not for the faint of heart). I also gotta thank Jeremy (Servion Tuning) for doing a final tune on the dyno, we're still seeing if we can get the drivability better but I'm not sure how good we can get this big cam to putt along at 1400 rpm .
Here's the final numbers from the other night, the red line is with the filter and tune on 91 octane, blue line is filter, heads, cam, headers and tune on 91 octane:
For the sea level guys on this forum these numbers are what the car makes here in Colorado at 6000ft. I'm sure on a Dyno Jet here SAE numbers would be about 600whp/550wtrq
Congrats!! saw your car at Rods while it was awaiting its new LPE mods.
Great #'s too! should be interesting to see how the "baby" cam runs on the dyno soon. I too may need a new clutch after Rod got done working his magic. exedy seems to not be holding the new found pow pow!
congrads Scuba... I wonder what she would put down on a dynojet. As for the tune around the 1400 rpms, she might need some adjusting MAF VS MAP tables in the lower end, you can get even the biggest of cams to not have much surge (if thats whats your talking about) in the lower rpms. a Hint is more fuel in the MAF tables from 3000 hz and lower, that tends to be the issue..
take care.
Clint
Last edited by Clint@A.i.R.; 09-30-2009 at 12:36 AM.
congrads Scuba... I wonder what she would put down on a dynojet. As for the tune around the 1400 rpms, she might need some adjusting MAF VS MAP tables in the lower end, you can get even the biggest of cams to not have much surge (if thats whats your talking about) in the lower rpms. a Hint is more fuel in the MAF tables from 3000 hz and lower, that tends to be the issue..
take care.
Clint
Thanks Clint I'll let my tuner know about that. I also found that we may need to mess with timing in closed loop, if that's possible.