I was getting some work done to the car and had my 03 cobra tuned at the same place. Originally with a returnless system on my posi ported eaton at 17lbs I made 525/543. I was having an issue switching gears on wot runs where the car would hesitate, so I went with a return set-up. Same shop did the tuning and I dropped to 505/520. After ruining a piston, the current shop accused the previous engine builder. Stuck between a cobra and a hard place, they agreed to avoid a bad reputation and cover future labor and tuning, I was responsible for parts.
I went with the boss 302 upgrade block from modmax and had them build a shortblock with 9.2cr (previously 9.1) able to withstand 1000hp. It was shipped to the current shop who just recently finished installing everything and tuning, this time I'm going with a 93 and E85 tune. I was expecting (hoping) for a 550/570 on 93 and maybe graze 600 on E85. The car put down 502whp and about 520wtq now at 15lbs (same pulley combo) at 11.4afr on 93 but then on E85 made 560/577. Is he just giving me a safe tune for driving around on pump? I'm using SCT
Thanks
I went with the boss 302 upgrade block from modmax and had them build a shortblock with 9.2cr (previously 9.1) able to withstand 1000hp. It was shipped to the current shop who just recently finished installing everything and tuning, this time I'm going with a 93 and E85 tune. I was expecting (hoping) for a 550/570 on 93 and maybe graze 600 on E85. The car put down 502whp and about 520wtq now at 15lbs (same pulley combo) at 11.4afr on 93 but then on E85 made 560/577. Is he just giving me a safe tune for driving around on pump? I'm using SCT
Thanks