Help! Going through traps in middle of 4th rather than top of 3rd?!?!
11-05-2009, 08:09 AM
#1
Thread Starter
Join Date: Oct 2009
Location: Florida
Posts: 43
Help! Going through traps in middle of 4th rather than top of 3rd?!?!
Went to the track last night since putting a new cai, longtubes and x pipe, tune up and underdrives...Everytime ive gone to the track before, i was going the the traps at 5500rpm in 3rd gear with my 3:55s. Last night i put it into 4th about 3/4 track and lost 3-5mph running very disappointing times..clutch isn't slipping or anything....i am assuming its the tranny but i just found it odd...any help would be greatly appreciated!!!
Last edited by streetstang88gt; 11-05-2009 at 08:16 AM.
11-05-2009, 11:59 AM
#2
5th Gear Member
Join Date: Aug 2007
Location:
Posts: 3,189
when that happens to me its usually cuz i spun out off the line and shifted out of first way too early. did you get multiple runs in or just the one? if just 1 run i wouldnt worry about it, probably driver error.
11-05-2009, 01:54 PM
#4
Thread Starter
Join Date: Oct 2009
Location: Florida
Posts: 43
reguardless if it were driver error or not, i still wouldn't ever hit 4th...i did 3 runs and all were the same...still in 4th...my dumbself was still driving it..haha..but i dont know how it could be the tranny, that would be the rear end more so right?! I am shifting at 5500..
11-05-2009, 02:00 PM
#5
6th Gear Member
Join Date: Apr 2007
Location: California
Posts: 10,468
You should probably be shifting at more like 6,000 with your setup, maybe even a tad more. As long as you have good pushrods and valve springs it shouldn't be a problem. Your power probably peaks at 5,500, but it doesn't fall off instantly.
11-09-2009, 07:52 AM
#9
Thread Starter
Join Date: Oct 2009
Location: Florida
Posts: 43
has anyone experienced same issue...im hoping my tach is reading wrong but I don't know if its my rearend or not....i definately know what my car sounds like at high rpms....im just lost with it...i am about to go 410's as well..
11-30-2009, 01:56 PM
#10
Thread Starter
Join Date: Oct 2009
Location: Florida
Posts: 43
i did just realize last week that my ujoints were bad and my driveshaft was possibly out of balance...would that explain why i was in 4th 3/4 track? i know everybody is somewhat mindboggled over this and im just as lost as most of you...i have the weirdest things happening to this car...haha...
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