New power best 547 rwhp 11 psi

1fastz

Member
Sep 30, 2005
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547 rwhp on a mustang dyno .. 10.8 psi acording to the dynos boost loger and 6500 rpm power peek ..

For those who say its going to blow up any second..

I drove it 45 miles to the track and made over fourty passes shifting at 6400 that same day during a fbody vs mustang shoot out in the bracket class then drove it home and went out later that night and its still runing perfect.

Was at the track from 1 pm untill 12 am between the shoot out, the bracket race, qualifying, and the after the race normal saterday test and tune grudge match session.

Beat the car to hell all day on drag radials without any issue... in temps rangeing from 90 degrees during the day to low 60s at night.
 
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IF it pops ill build a low compresion short block

but i have over 8 thousand miles now at over 538 rwhp without any problems

i made 40 passes all total yesterday hot laping it many times without issue.

its all in the tune.
 
1fastz said:
547 rwhp on a mustang dyno .. 10.8 psi acording to the dynos boost loger and 6500 rpm power peek ..

For those who say its going to blow up any second..

I drove it 45 miles to the track and made over fourty passes shifting at 6400 that same day during a fbody vs mustang shoot out in the bracket class then drove it home and went out later that night and its still runing perfect.

Was at the track from 1 pm untill 12 am between the shoot out, the bracket race, qualifying, and the after the race normal saterday test and tune grudge match session.

Beat the car to hell all day on drag radials without any issue... in temps rangeing from 90 degrees during the day to low 60s at night.

I was at the track that day 1fastz raced. The runs began early afternoon and continued to midnight. That was with HOT temps due to a blazing Texas sun which contributed to a slick track. I could not get my car to hook and slid around too much so I quit and went home to drink a beer...
I had the pleasure of taking a ride in this close to 550rwhp monster Mustang earlier this afternoon after visiting his shop. I will say with testament to his work he has put into his Mustang that he definitely has a monster stang. Very powerful acceleration and I got pushed back into my seat as he accelerated...the whole time with the A/C on! I have witnessed him at that track on several occasions running over and over. For stock internals, etc, I will say he is doing definitely something right with his Mustang to keep it from blowing up. Very impressive numbers with plenty of use on the engine.:nice:
 
12.1 120

RedStang1 said:
What was your best time at the track?

12.1 at 120 on radials grany shifting due to a new clutch that wont disengage all the way i need to pull the trany and shim the throwout bearing then ill be able to power shift again.