Paulie2256 Donating Members 7,441 Member For: 16y 1m 26d Gender: Male Location: SE Melbourne Posted 18/12/12 08:32 PM Share Posted 18/12/12 08:32 PM (edited) Whether you flat change or not I think the ecu still cuts powerI flat changed 3rd to 4th on the road once and clutch slipped like a bitch. Never done it since. I believe it would help a lot with the right set up. Some boost will still be lost though because the load disappears for that tiny gap. Pretty sure that's how supras get down the line so quick, with the addition of anti lag between the sifts. But I'm I am sure all this has been tried before. Edited 18/12/12 08:33 PM by Paulie2256 Link to comment Share on other sites More sharing options...
rednose RNS10S Donating Members 2,229 Member For: 18y 5m Gender: Male Posted 18/12/12 09:05 PM Share Posted 18/12/12 09:05 PM Maybe one of the tuners can chime in, Ratter??? Link to comment Share on other sites More sharing options...
relentless xr6 Member 363 Member For: 14y 1m 13d Gender: Male Location: Sydney Posted 18/12/12 09:31 PM Share Posted 18/12/12 09:31 PM hey guys when my car was manual I was making 321 rwkw@14psi anyways I had a pb of 12.7@117 I found that leaving with very little revs and granny shifting the only gear I ever pumped was 3rd to 4th, a good blow off valve would help also imo. Link to comment Share on other sites More sharing options...
qik1 Silver Donating Members 2,720 Member For: 16y 8m 6d Gender: Male Location: Loitering in SEQ Posted 19/12/12 02:35 AM Share Posted 19/12/12 02:35 AM Trying to find where the excuse is .....Need more big power statsNever excuses just straight facts. Those times that we were running were from 4 odd years ago & when the car was tuned & run in north qld so not making excuses for anyone.Maybe look at the mph Spiro, Simon, Dan & Brian were running when they went to the track there really the only big hp manuals that have had a crack. Getting accurate dyno figures off them might be tricky due to differing factors. I know simply with a wheel change we can gain or lose 50 or so hp not to mention different ways of strapping cars down to simply get a full clean run out of them. That & at the track the higher hp manual and autos used staged boost levels to just get down the otherend of the track so peak figures mean jack, we don't even engage top slot until the top of 3rd.You've got wheel sizes to take into consideration, track temps, track traction, driver ability. There will always be too many variables to really get a true gauge. Apart from the 4 above how many other manuals have actually run over 125mph as well so ya wont have much to compare at that level..... Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 29,141 Member For: 16y 9m 7d Gender: Male Location: Melbourne Posted 19/12/12 03:05 AM Share Posted 19/12/12 03:05 AM Once I get a new rear muffler and a short-shift kit from Mal Wood and a retune, I'll be happy to give a flat-changing run a go down the quarter to see if it makes any difference to the MPH or ET over my best efforts using the clutch. But that might be a few weeks/months away due to lack of funds Link to comment Share on other sites More sharing options...
trbo 6 Member 230 Member For: 20y 10m 15d Gender: Male Posted 19/12/12 03:15 AM Share Posted 19/12/12 03:15 AM In a manual (3.73 diff) 125mph is 6100rpm in 4th gear, which is right where power is dropping off, however in an auto 125mph is at 5100rpm which is at, or close to peak power. So my theory is the difference in gear ratios is part of the reason you see a difference in mph between the manual and auto. Link to comment Share on other sites More sharing options...
Paulie2256 Donating Members 7,441 Member For: 16y 1m 26d Gender: Male Location: SE Melbourne Posted 19/12/12 03:31 AM Share Posted 19/12/12 03:31 AM Did you take gearbox ratios into account? Link to comment Share on other sites More sharing options...
trbo 6 Member 230 Member For: 20y 10m 15d Gender: Male Posted 19/12/12 03:58 AM Share Posted 19/12/12 03:58 AM Yes. 1:1 for the manual in 4th and 1.14 in 4th for the auto. Link to comment Share on other sites More sharing options...
aussie1926 Donating Members 176 Member For: 14y 10m 26d Gender: Male Location: Muswellbrook NSW Posted 16/01/13 05:36 AM Share Posted 16/01/13 05:36 AM My F6 is a manual. No tuned I ran a 12.53 @113mph with a 1.9 60f I think, Also was on 245 tyres 1 Link to comment Share on other sites More sharing options...
Rydeit Member 327 Member For: 12y 6m 6d Gender: Male Location: Adelaide S.A Posted 16/01/13 05:40 AM Share Posted 16/01/13 05:40 AM 12.53 with a stock manual f6 is crazy. nice Link to comment Share on other sites More sharing options...
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