sims76 Posted April 15, 2006 Share Posted April 15, 2006 I'm very happy overall to say the least. Megasquirt N Spark performed flawlessly and the car pulled hard all the way to 6000+ RPMs. I'll have the video up in a few days. Here's the details. I think with a better launch & 60' time I can get into the 12's without chaning anything else. What do you guys think? 1976 280z 2+2 Ambient: about 70 degrees F boost: 14lbs on a Thagard Garrett T3/T04E 56trim (either 54 or 56 trim, I can't remember) tire pressure: 33lbs on 225/15/50 Kumho street tires weight: 2970lbs with me in it, I weigh about 190 so the car weighs about 2780lbs. 1/2 tank of gas AFR: I don't know because I was staring at the tach but the wideband ususally reads 10.5 to 12 under full boost depending on conditions (still working on this) Head: stock P90a with solid lifters Bottom: stock turbo block & oil pump Head Gasket: Felpro, with ARP studs torqued to ARP spec Rear: 3.54 Tranny: 5 speed from an unknown year R/T: .367 60': 2.234 330: 5.830 1/8: 8.733 MPH: 85.7 1000: 11.225 1/4: 13.320 MPH: 108.04 Quote Link to comment Share on other sites More sharing options...
Guest ON3GO Posted April 15, 2006 Share Posted April 15, 2006 dude you have so much more in that setup that 11's with more boost and a good tune that high 11's are there with some drag radials.. just lower the weight some. mike Quote Link to comment Share on other sites More sharing options...
blake culp Posted April 15, 2006 Share Posted April 15, 2006 Wow, thats pretty quick. Especially with a 2.2 60' time. Thats about the same 60 i was running back when i had the stock ecu and turbo and mid 14's (82zxt though). Now im running megasquirt and a t3/t4 and havnt yet got it to the track. People have always told me that for every tenth you shave off your 60' you make up two tenths in the 1/4. Work on your launch and im sure you will break into the 12's. I cant wait to see the video!! One last thing, do you think you could send me pictures of your fuel and spark tables? we have very similar setups and i have mine running well, but i would still like to see some tables from someone who has actually ran their car. Im running MSnS extra, so im not sure if your whole msq would transfer over....but pictures would be great. Thanks Blake Quote Link to comment Share on other sites More sharing options...
big-phil Posted April 15, 2006 Share Posted April 15, 2006 My wife wont let me go to the track, damn I need to take this skirt off! I told her my screen name is "Big Phil" and everything, she still wont let me go:icon55: Quote Link to comment Share on other sites More sharing options...
sims76 Posted April 16, 2006 Author Share Posted April 16, 2006 Thanks for the encouragement, I appreciate it. The wife told me to buy some drag radials and get me some 12's next time. I wouldn't feel bad about upping to 18psi or so with some of the race fuel they sell at the track. Maybe I'll do just that in a few months. Here's my MS settings as of today.....Note that I run 14psi or about 200kpa at full throttle. I get the full 14psi above 3000RPM. Quote Link to comment Share on other sites More sharing options...
b__sosick Posted April 16, 2006 Share Posted April 16, 2006 dude! that's one bad a$$ 2+2!! Quote Link to comment Share on other sites More sharing options...
Thumper Posted April 16, 2006 Share Posted April 16, 2006 Thanks for the encouragement' date=' I appreciate it. The wife told me to buy some drag radials and get me some 12's next time. I wouldn't feel bad about upping to 18psi or so with some of the race fuel they sell at the track. Maybe I'll do just that in a few months. Here's my MS settings as of today.....Note that I run 14psi or about 200kpa at full throttle. I get the full 14psi above 3000RPM. [/quote'] Looks like you are running the supra injectors do you have resistors inline on the power wires? If so then your PWM should be 100%. Also that seems like way! to much fuel. My constant fuel is 7ms and my highest duration was 98% even at 21psi. Might want to get a wideband on that and see what your a/f ratios are. But for 2900lbs not too bad. I guess thats with you in it? I think with some tuning and getting your 60's down to low 2.0's you should be in mid to high 12's. I've found slipping the clutch is the best way to launch my turbo z. About 4-4.5k rpms then as soon as boost starts to build let off the throttle just enough to keep from spinning. Good luck Also what compression ratio are you running? The stock pistons and rods can take 18psi easily as long as you stay away from detonation. I've had mine up to 22psi with no problems. Your timing maps look good on boost but under light acceleration and low boost you can run more. I ran 39 total and every 20kpa above 100kpa I lower it 3-4 degrees roughly. Quote Link to comment Share on other sites More sharing options...
proxlamus© Posted April 17, 2006 Share Posted April 17, 2006 damn you have alot of fuel compared to my maps!! jeesh! good numbers man! now tune away! Quote Link to comment Share on other sites More sharing options...
sims76 Posted April 18, 2006 Author Share Posted April 18, 2006 Thanks for the input guys. I will sanity check my fuel numbers and update my off boost timing, but the wideband always reads reasonable values. Maybe my fuel pressure is way lower than some of you. It's about 38psi with the motor not running, I'll check that out. Here's the video: http://smg.photobucket.com/albums/v208/sims54/Track%20Times/?action=view¤t=Cap0003.flv It's kinda long because I didn't edit it. And no, I don't have anything to do with the Passat that is doing the burnout, however I do daily drive a similar Passat. Quote Link to comment Share on other sites More sharing options...
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