1/8 Mile times in a 928 ?
07-03-2008, 10:56 PM
#61
i wouldnt worry what the program says your car should hit at least 80 mph in the 1/8 and your not.
ck the cam timing and ck the tourque tube clamp if it moved and is compressing the crank in the block that adds quite a bit of drag and of course all ather tuning tidbits. ck your coils i had on 2 other cars my 89 included, voltage crossing or arcing from the coil secondary terminals to the smaller primary terminals and on other cars like vw or audis it would actually burn a hole through the plastic insulator of the coil they usually run fine at idle and normal driving but under heavy load or high rpm you would get some misfire that most people would'nt feel.
ck the cam timing and ck the tourque tube clamp if it moved and is compressing the crank in the block that adds quite a bit of drag and of course all ather tuning tidbits. ck your coils i had on 2 other cars my 89 included, voltage crossing or arcing from the coil secondary terminals to the smaller primary terminals and on other cars like vw or audis it would actually burn a hole through the plastic insulator of the coil they usually run fine at idle and normal driving but under heavy load or high rpm you would get some misfire that most people would'nt feel.
08-27-2008, 01:13 AM
#62
Burning Brakes
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CRC Cleaner
Took the car back after cleaning the MAF with CRC MAF spray.
Car now runs from 9.60 down to best of 9.42 tapped the breaks but still broke out was dialed in at 9.45 on the 3rd run it may have went 9.40 or high 9.30's.Mph was down around 1.5 since hit the breaks trying not to break out.So overall car ran almost .2 faster ET after cleanign the MAF with CRC and you could feel it more so when hit 2nd gear in the auto ET scans to come maybe tomorrow.Would like to try a different air filter system like 928 specialist had on the site blackbird would be interesting to see what it would do since car is all stock.Some one else had a custom one looked great this would be a great way to see how much they would do at the track good for .1 second more in 1/8th?
Mark
87 s4
Car now runs from 9.60 down to best of 9.42 tapped the breaks but still broke out was dialed in at 9.45 on the 3rd run it may have went 9.40 or high 9.30's.Mph was down around 1.5 since hit the breaks trying not to break out.So overall car ran almost .2 faster ET after cleanign the MAF with CRC and you could feel it more so when hit 2nd gear in the auto ET scans to come maybe tomorrow.Would like to try a different air filter system like 928 specialist had on the site blackbird would be interesting to see what it would do since car is all stock.Some one else had a custom one looked great this would be a great way to see how much they would do at the track good for .1 second more in 1/8th?
Mark
87 s4
i think you need to ck other things on your car its not running right. i just went through my other timeslips for other cars i have and found from 03 when i had my 86.5 928 auto 90k miles that wasnt quite right, heavy rear a/c, and a soggy topend didnt pull clean to redline like it was running lean or timing retarded i never got to finish tuning it a buyer popped up so i sold it. but that car not quite right did consistent 14.4 qtr w/ 1/8 mile at 9.5 right around 80 mph. your car is only doing 77 mph and its an s4 something isnt working right.
12-31-2009, 09:25 PM
#63
Burning Brakes
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Which system are you running?
Also did you get to run it since the low 8's?
Tire size and make?
05-10-2011, 04:01 PM
#65
Burning Brakes
