Markolc1981

Hi members! I'm taking my 1999 M6 FRC to the dyno in 8 days. Two reasons for my visit, the first is I'd like to get a baseline for power. I purchased this car exactly one year ago and have enjoyed it, and am curious how much power it has before I start to mod the motor. Second, I have been learning HPTuners over the winter, and am curious as to what effect my novice tuning skills have had on the car. When I got the car, the ECM tune was the stock one, and smelled rich, so it was never optimized for headers.

The dyno will be a AWD Mustang Dyno @ 100' above sea level.

Engine Mods to the car:
Stock '99 LS1
C6Z air box and MAF
LG LT Street headers, X-pipe, and Z06 Ti exhaust
LS7 Clutch and Flywheel
Fresh LS6 valve springs
LS6 valley cover
secondary AIR system delete
Novice Tune

My personal guess is 330-345.

Beast

345-350, my friend has mods on an 03 M6, LG streets, hall tech air intake, xpipe, catback, tuned, and made 355, yours being a 99, 345-350, novice tune, we shall see.

pit-man

I will guess 365 hp

Johnny Hardcore

My guess is basically the same as yours. Figure it's 300-310 bone stock. So estimate another 25 to 35whp with the headers, intake and tune.

Glensgages

For-what-it's-worth, my bone-stock '03 A4

Rob Petyo

310 -320

Mustang dyno's can be pretty stingy!

Beast

FYI, my 2004 A4 with headers, intake, xpipe, cats, bullet catback, tuned, dyno was 340wheel. Some basic mods with headers and tune will really wake it up.

Markolc1981

Right on the money! This Mustang Dyno was related to Uncle Scrooge lol.

318hp/347Tq.

My novice tune was +6 HP better than the stock tune, and that's what I was most interested in.

Most importantly, I now have a baseline on this dyno, and one I will come back to once my next set of mods are installed for a nice fair shake down.

Rob Petyo

That's the way to look at it. I ran 10.2's and was only reading 418 rwhp on a mustang dyno (vid in sig). The numbers only matter as a baseline and gains from the last mod.

Mine would flash at 5200 rpm's

RonSSNova

Mustang dyno calibration can be tweaked to look like a dynojet. I believe it adds on the order of 10-12%

I ran a dyno dynamics for about 5 years. Many of our customers headed straight to a dynojet after our work and then were happy. It was 13-14% lower than a Dynojet.

Id say Rob’s car was very well set up to take advantage of that 420 rwhp!

Nice job OP, enjoy