First ATI dyno #'s , need pulley help
First ATI dyno #'s , need pulley help Finally got everything together and made it to the tuner ( 
carolina auto masters ) 568 HP , 517 TQ , 12.5 A/F @ 5800 rpm . He did not want the car to boost over 9 psi. with the stock bottom end so the limiter is set at 5900 rpm to keep the boost in check . So , with a MMS crank pulley , what size blower pulley would I need to keep 9 psi. at 6700 rpm , or should I just keep this setup a while ? I'm running a 4.0 blower pulley now
carolina auto masters ) 568 HP , 517 TQ , 12.5 A/F @ 5800 rpm . He did not want the car to boost over 9 psi. with the stock bottom end so the limiter is set at 5900 rpm to keep the boost in check . So , with a MMS crank pulley , what size blower pulley would I need to keep 9 psi. at 6700 rpm , or should I just keep this setup a while ? I'm running a 4.0 blower pulley now 
Originally Posted by SSls1man
Finally got everything together and made it to the tuner ( carolina auto masters ) 568 HP , 517 TQ , 12.5 A/F @ 5800 rpm . He did not want the car to boost over 9 psi. with the stock bottom end so the limiter is set at 5900 rpm to keep the boost in check . So , with a MMS crank pulley , what size blower pulley would I need to keep 9 psi. at 6700 rpm , or should I just keep this setup a while ? I'm running a 4.0 blower pulley now
carolina auto masters ) 568 HP , 517 TQ , 12.5 A/F @ 5800 rpm . He did not want the car to boost over 9 psi. with the stock bottom end so the limiter is set at 5900 rpm to keep the boost in check . So , with a MMS crank pulley , what size blower pulley would I need to keep 9 psi. at 6700 rpm , or should I just keep this setup a while ? I'm running a 4.0 blower pulley now Yep I'd fatten it up a lil bit more. Run your a/f @ 11.7 for safety sake....and set the a/f on the street as it'll lean out going from the dyno to the street or so i'm told.
J
J
I'd really watch out with that 12.5-1 A/F too.Dropping it to 11.5-1 will take 60hp or so away.You can also run that pulley and tune accordingly by dropping the timing in the high rpm area.I've been running 14lbs for over a year (without knock sensors).When I did a pull at 12.5-1 my #'s went over 600hp by 5500rpm,then I let off very quickly 
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Originally Posted by SSls1man
Finally got everything together and made it to the tuner ( carolina auto masters ) 568 HP , 517 TQ , 12.5 A/F @ 5800 rpm . He did not want the car to boost over 9 psi. with the stock bottom end so the limiter is set at 5900 rpm to keep the boost in check . So , with a MMS crank pulley , what size blower pulley would I need to keep 9 psi. at 6700 rpm , or should I just keep this setup a while ? I'm running a 4.0 blower pulley now
carolina auto masters ) 568 HP , 517 TQ , 12.5 A/F @ 5800 rpm . He did not want the car to boost over 9 psi. with the stock bottom end so the limiter is set at 5900 rpm to keep the boost in check . So , with a MMS crank pulley , what size blower pulley would I need to keep 9 psi. at 6700 rpm , or should I just keep this setup a while ? I'm running a 4.0 blower pulley nowLast edited by mzoomora; May 1, 2005 at 06:56 PM.
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Originally Posted by Bryan Wilkinson
It depends on everything else in the car, Going up in pulley size will drop boost, 4.10 is far enough and you will be fine.
Leave the pulley setup alone..... if its not broke dont fix it......... and by spinning your motor lower it will live longer....... Like a bajillion people have said so far fatten up the tune and be happy with it.... then work on your other problem.......... Traction...
Kyle
Kyle
i have to agree i'm running 11.5 all the way across and the car made 615/600 with 3 bad wires, breaking up on the dyno. should be around 630-650 right about now, but i wont go any higher then 11.8:1 though.
