Rod Posted February 20, 2007 Report Share Posted February 20, 2007 It was surprising to see how you can load the truck to 2500 rpm just with the break and going through the gears like a manual transmission took .4-.5 off the 1/4 mile times. Quote Link to comment Share on other sites More sharing options...
brobradh77 Posted February 20, 2007 Report Share Posted February 20, 2007 It was surprising to see how you can load the truck to 2500 rpm just with the break and going through the gears like a manual transmission took .4-.5 off the 1/4 mile times. Try that with 2WD I learned that doesn't fly Quote Link to comment Share on other sites More sharing options...
04CHASE Posted February 20, 2007 Report Share Posted February 20, 2007 you must have an aftermarket stall, the stock wont stall any higher 1800 rpms. and shifitn through the gears doesent gain anything . Quote Link to comment Share on other sites More sharing options...
Krambo Posted February 20, 2007 Report Share Posted February 20, 2007 you must have an aftermarket stall, the stock wont stall any higher 1800 rpms. and shifitn through the gears doesent gain anything . ...unless your trans is slipping badly in 1st gear. Quote Link to comment Share on other sites More sharing options...
faceliftedss Posted February 21, 2007 Report Share Posted February 21, 2007 i was thinking the same thing mine only stalls at 1800 as well. but in my oppinion it does seem to help with time rather than not loading up. Quote Link to comment Share on other sites More sharing options...
Red03SillSS Posted February 21, 2007 Report Share Posted February 21, 2007 When I had my stock stall I actually got better times not loading it all the way up, someone said it was overstalling it. I had my best times loading to about 1000 rpms and launching. Not I can load to 3 grand. But friday when I go to the track I am going to see if its better to load and launch or idle and launch. As for shifting through the gears, .3-.4? Never heard of that much of a gain, actually ive never heard of any gain shifting through the gears on our truck. Quote Link to comment Share on other sites More sharing options...
CNE Posted February 21, 2007 Report Share Posted February 21, 2007 I have a TB converter and it seems to do better stalling to around 1500-200 then launching. It will turn up to 2800 if I'm hard on the brakes, but it seems to load up. Quote Link to comment Share on other sites More sharing options...
2006_superado Posted February 22, 2007 Report Share Posted February 22, 2007 i just tried every technique at the track (lacr) and i gained .2 just by manualy shifting. and it just confirmed what i already knew.. i've done this with both my old silvy's 03 5.3 and 05 5.3 and manualy shifting is always quicker then leaving it in drive. if you have'nt tried it, please do. and get a feel for it, if you shift right it will gain time. as far as chase's truck, i'm guessing since his is no where near stock, his tranny will shift optimaly on it's own. our's need a little help. hmmm... wonder if chase remembers what a stock truck is like? lol Quote Link to comment Share on other sites More sharing options...
CNE Posted February 24, 2007 Report Share Posted February 24, 2007 The advantage to manually shifting, is to be able to wind out the gears a little more. In my case, if I let it shift on it's own, it will go into 3rd a little before the 1/8th mark, slowing my time. If I hold it in 2nd through the 1/8th, it tach's out to about 6,000 and runs a faster time. Now a tune will correct that since you can set your shift points higher. If I leave it in D through the 1/4, it shifts too early and falls off after going into 3rd gear. I recently ran it in the 1/4 for the first time and tried to manually shift it. I guess, I have a tuning issue, but it won't shift into 3rd if done manually, or left in 3. If it is in D, it shifts fine, just a little too early. Once I get it tuned, it will shift wherever we set it. So, for a stock tune, it is advantageous to manually shift, in my opinion. Quote Link to comment Share on other sites More sharing options...
OUT2WIN Posted February 25, 2007 Report Share Posted February 25, 2007 you must have an aftermarket stall, the stock wont stall any higher 1800 rpms. and shifitn through the gears doesent gain anything . I have a factory stall and can brake stall to 2400-2500. I brought it up once before but, someone mentioned because I was 2WD Quote Link to comment Share on other sites More sharing options...
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