98 Corvette Dyno results
01-18-2013, 06:22 AM
#31
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Did you do a tune up or anything prior to you trip to the dyno after the Ls6 install? I'm wondering if you might of had a little vacuum leak or something that resulted in your first dyno being lower than it should have been.
01-18-2013, 07:04 PM
#32
the car went from 110 mph to 111 basically. at 3600lbs. I recall very little work needing done to the tune. not sure we did anything honestly. verified w wideband and hpt. 24 whp should pick you up 3 mph easy. an auto vert prob won't trap 113 with 322 whp. my buddy's 99 m6 frc went 111 with 308 whp
01-19-2013, 07:35 AM
#33
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The intake swap on my T/A took about 6 hrs and on the Vette about 4hrs.
The only thing we did when we swaped over the LS6 intake was do the TB Bypass. I had the same plugs and wires on it that I had before. We did notice that since the car was running very rich that all the Intake ports on the heads were black with buildup as well as the TB. We did clean off all the carbon buildup as well while the intake was off. That could have contributed to some of the gains as well.
Went back last night with the Vette. I installed new TR55 plugs and the RPM wires and also had a Maft Translator to mess with the A/F. 1st pull was just to see if the new plugs and wires effected anything. I put down 319rwhp and 333rwtq but did gain a couple ponies down below 5000 rpms. The graph was a little smoother but the A/f was still 11.8. I messed with it a little more with the box and leaned it out 6% which got my A/F to 12.4 and the car made 328rwhp and 339rwtq. We ran out of time as it was 7pm so I will continue another day with fine tuning it to 13.0ish. Hopefully It will make 330rwhp and 342tq. That would be what my 02 WS6 made with pretty much the same mods ( CAI,Muffler.) through a 6 speed though.
The only thing we did when we swaped over the LS6 intake was do the TB Bypass. I had the same plugs and wires on it that I had before. We did notice that since the car was running very rich that all the Intake ports on the heads were black with buildup as well as the TB. We did clean off all the carbon buildup as well while the intake was off. That could have contributed to some of the gains as well.
Went back last night with the Vette. I installed new TR55 plugs and the RPM wires and also had a Maft Translator to mess with the A/F. 1st pull was just to see if the new plugs and wires effected anything. I put down 319rwhp and 333rwtq but did gain a couple ponies down below 5000 rpms. The graph was a little smoother but the A/f was still 11.8. I messed with it a little more with the box and leaned it out 6% which got my A/F to 12.4 and the car made 328rwhp and 339rwtq. We ran out of time as it was 7pm so I will continue another day with fine tuning it to 13.0ish. Hopefully It will make 330rwhp and 342tq. That would be what my 02 WS6 made with pretty much the same mods ( CAI,Muffler.) through a 6 speed though.
