What a good time last night. Great to see alot of guys out.
I feel like a total heal, I guess that is what I get for thinking I was going to beat my PB
Last weekend, the car felt GREAT, last night, no so great. Just amazing............
First pass out, tank had too little fuel in it and running E85, the pump is pumping 30% more, so on the top end, I ran VERY lean, like 13.1 lean, which in turn caused all kinds of KR.
Second run, add 5 gallans more fuel, added 5% more fuel to the fueling table, Dropped timing down to 23 Degrees, 1/4 way down the track, 12.6 A/F, so I let out of it.
Third Run, we added 5% more to the fuel table, made a full pass, with 12.1 or so A/F, but now the trans feels strange and the car falls on its face on the top end. Come to find out, I was seeing a TON of KR again.
I had put shorter upper motor mounts on the car, and was thinking that it was causing something to hit to cause this KR, since the rest of the log looked fine. So I took the stock ones off a friends car to see if that helped.
Fourth run, car felt OK, shifts were a little slow, A/F still around 12.1, 12.0, and at the end of the track my rpms hold and the car falls on its face.
Look at the log, once again, KR on the top end. Upper mounts did not help
Fifth run, added a little more fuel, dropped timing a little, still same reasult. After talking to my friend on the phone who helped me tune it, he seemed to think that the TQ converter is shot
That it most likely has "ballooned".
So today, I get the car on the lift, take of the inspecting plate for the fly wheel and see paint is missing off the TQ converter, there is metal dust in the trans housing, and the flex plate had rub marks on it.
I would have to say, I fried the TQ converter/ballooned it, which in turn was making the flex plate, flex too much, which in turn was causing it to hit the block and the rear cover bolts, THAT is why I was getting a TON of Knock Retard on the top end. AH, problem solved, well kinda.
SO guess what I get to do again, yeap, pull the motor AGAIN, and put in a different TQ converter, this time I am getting a High Performance custom converter with a billet cover. It even comes with a 5 yr warrenty and rated to 1000hp. That will solve that problem, or at least that will let me see the next weakest link that my car has.
Originally Posted by KYGTP
What a good time last night. Great to see alot of guys out.
Reply With Quote