FNBADAZ06 Posted November 16, 2011 Author Share Posted November 16, 2011 If I hook a wideband up and see that it's real rich, I can just add nitrous until it gets to where I want it. I've actually read where some in fact did this, or talked about it in theory. They had enough injector and fuel pump capacity to use a small dry shot plate unit (75 shot, IIRC), along with installing some safeguard electronics. Link to comment Share on other sites More sharing options...
FNBADAZ06 Posted November 17, 2011 Author Share Posted November 17, 2011 I'm might not be back from Texas in time to do this dyno pull on Monday.....trying to reschedule for Tuesday morning instead. Link to comment Share on other sites More sharing options...
FNBADAZ06 Posted November 22, 2011 Author Share Posted November 22, 2011 Dyno runs completed this afternoon with wide band O2 (thanks Steve and LPM crew !!! ).....along with data logs from HP Tuners I want to look at the logs for each run and pair them up with the appropriate dyno graph, but it looks pretty conclusive on the surface that my fuel mix is definetly worth it Link to comment Share on other sites More sharing options...
HOXXOH Posted November 22, 2011 Share Posted November 22, 2011 Going on 2 hours now. Link to comment Share on other sites More sharing options...
Steve@LPM Posted November 22, 2011 Share Posted November 22, 2011 It was very interesting to say the least. Once we added the race gas sh*t got real..... Link to comment Share on other sites More sharing options...
Two Fangs Posted November 22, 2011 Share Posted November 22, 2011 Wow, that thing made Toyota Supra type power Link to comment Share on other sites More sharing options...
ANTI_VENOM Posted November 22, 2011 Share Posted November 22, 2011 It was very interesting to say the least. Once we added the race gas sh*t got real..... LOL looks like te beginning of my signature! Link to comment Share on other sites More sharing options...
Buccaneer Posted November 22, 2011 Share Posted November 22, 2011 Going on 2 hours now. Yeah! What he said. Link to comment Share on other sites More sharing options...
FNBADAZ06 Posted November 22, 2011 Author Share Posted November 22, 2011 Dyno run #1 at 3:42:46 PM on straight Shell 91 octane pump gas.....474/445 Link to comment Share on other sites More sharing options...
FNBADAZ06 Posted November 22, 2011 Author Share Posted November 22, 2011 Dyno run #2 at 3:43:52 PM on straight Shell 91 octane pump gas.....476/447 Link to comment Share on other sites More sharing options...
FNBADAZ06 Posted November 22, 2011 Author Share Posted November 22, 2011 Dyno run #3 at 3:45:10 PM on straight Shell 91 octane pump gas, heat soaked with ECT's above 214* with hood closed.....452/426 Link to comment Share on other sites More sharing options...
ANTI_VENOM Posted November 22, 2011 Share Posted November 22, 2011 Dyno run #2 at 3:43:52 PM on straight Shell 91 octane pump gas.....476/447 Wow nice number Victor! Time to change the sig! Link to comment Share on other sites More sharing options...
FNBADAZ06 Posted November 22, 2011 Author Share Posted November 22, 2011 Dyno run #4 at 5:02:28 PM on 50/50 mix of Shell 91 octane pump gas and Sunoco GT+..... 484 RWHP/ RWTQ 457 We had some issues with the dyno, so the ECT's got up to 196* at the start of the pull due to the engine running at idle for 4+ minutes....ran with hood open to assist in keeping ECT's cool Link to comment Share on other sites More sharing options...
FNBADAZ06 Posted November 22, 2011 Author Share Posted November 22, 2011 Dyno run #5 at 5:03:44 PM on 50/50 mix of Shell 91 octane pump gas and Sunoco GT+..... 479 RWHP/453 RWTQ ECT's got up to 208* at the start of the pull and finished at 214* ....ran with hood open to assist in keeping ECT's cool Link to comment Share on other sites More sharing options...
FNBADAZ06 Posted November 22, 2011 Author Share Posted November 22, 2011 Dyno run #6 at 5:04:44 PM on 50/50 mix of Shell 91 octane pump gas and Sunoco GT+..... 480 RWHP/451 RWTQ ECT's got up to 221* at the start of the pull and finished at 217* ....ran with hood open to assist in keeping ECT's cool. Link to comment Share on other sites More sharing options...
Two Fangs Posted November 22, 2011 Share Posted November 22, 2011 That's a result. Good job and congrats to both you and LPM on conducting this little experiment. Link to comment Share on other sites More sharing options...
FNBADAZ06 Posted November 22, 2011 Author Share Posted November 22, 2011 Dyno sheet with local conditions. SAE corrections applied.....correction 1.02 Best uncorrected run of 476.13 RWHP , 449.68 Tq.....corrected to SAE to 484.36 RWHP, 457.46 Tq...or if your a Standard type of guy....... 494.43 RWHP, 466.96 Tq. Maybe we should just set Smoothing to 0, and Standard correction, so I can get the biggest reading so I can argue with people who love dyno numbers and bragging rights.... everybody loves inflated dyno numbers, right ? 497.27 RWHP , 469.58 Tq Link to comment Share on other sites More sharing options...
FNBADAZ06 Posted November 22, 2011 Author Share Posted November 22, 2011 OK...so now we can debate. Did the 50/50 mix help my stock tuned LS7, and if so, where did the power increase come from ? Same dyno......same day.....same local weather correction factors On straight pump gas , my average of the two good non-heat soaked runs is 475.34 RWHP, 446.78 Tq. On my 50/50 mix, using all three runs to include the higher ECT beginnings and heat soaked passes to bias the number down....... 481.51 average RWHP 454.24 average RWTQ ...gives me gains of 6.17 RWHP gain 7.46 RWTQ gain Use the average for the two best runs pushes the RWHP gains up just a bit... 482.59 average = 7.5 RWHP gain 454.58 average = 7.8 RWTQ gain No KR on any of the 50/50 mix , which ends up to be roughly 97.5 octane. The 91 pump runs had the advantage of superior ECT's to begin and finsih the runs, but had some KR near the upper RPM. The 97.5 octane oxygenated fuel mix all begin their pulls in excess of 196* , with the two final pulls getting near and above the factory tune ECT barrier where timing is pulled...and running LESS overall total timing....and they still made more power than the 91 run's....interesting. Link to comment Share on other sites More sharing options...
FNBADAZ06 Posted November 23, 2011 Author Share Posted November 23, 2011 An interesting comparison between my best 91 pull and my worse 91 pull........ Best pull #2, no KR, 23.5* TT, 81* IAT, and 203* ECT......476/447 Worse pull #3, 1.3* KR, 17.5* TT, 88* IAT, and 216* ECT......452/426 With just a 7* warmer IAT, 13* warmer ECT, and the 1.3* KR, it all cumalitevly conspired to chop 6* TT and kill 24 RWHP and 21 ft/lbs RWTQ !!! Conversely, my best and worse pull comparison on the 50/50 mix.... Best pull #4, no KR, 25* TT, 73* IAT, 194* ECT.......484/457 worse pull #5, no KR, 22* TT, 77* IAT, 212* ECT......479/453 With 4* warmer IAT, 18* warmer ECT, no KR, and a loss of 3* TT ... I only dropped 5 RWHP and 4 ft/lbs RWTQ. Throw run #6 in the mix, with no KR, 20* TT, 81* IAT, ECT's between 221* and 217* (and probably the sole contributor to my 5* TT loss), ....480/451 With 8* greater IAT, 23* to 27* greater ECT's, and 5* less TT.... I only dropped 4 RWHP and 6 ft/lbs RWTQ. HHhhhmmmmmmm ......think about that Link to comment Share on other sites More sharing options...
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