hotmustang331
Active Member
BennyBlown2v said:Then why is it my 423rwhp car runs 12.55's on a race prepped track (ORP prepped for the MAC Tools US Nationals LOL) with 1.78 60', 112mph trap (average)? Granted I'm on stock 3.27's, and most gear I've ever run are 3.55's (running 12.5's@115mph). Fact is non-intercooled FI cars don't run as fast at comparable dyno power levels as intercooled and NA setups. When going through 4 gears the intake charge just gets hotter and hotter losing lots power - I might make 400+ on the dyno, but at the track its more like 380 after 3rd. These cars are piggies too, it's not like a fox where 400hp gets you deep into the tens.
I also have no traction in 2nd on MT et street radials...so that might have something to do with it though...lol
Im honestly not too sure. I THINK its the gears, it is too tall for the high RPM centri style S/Cs....just not getting enough pull when you shift to the next gear. I understand your reasoning though with your statement, and if I were in your shoes I would have said the same thing. I also think your right about the heat....and it applies even more so in your case because it is SOO hot with your extra few #s of boost.
BTW my car weighed in @ 3250 at FULL weight and a FULL tank of gas....thats only 100#s more than a TWO SEATER 02-04 fiberglass Z06, and 120# more than a TWO SEATER 06 Z06 that has some crazy light aluminum (?) frame, a fiberglass/carbon fiber body and an all aluminum V8 thats MUCH lighter than our motors . IMHO thats not too bad at all.
Only the cobras and verts are the pigs...GT coupes are pretty light. (Note I have a tubular K...but also have DD rear bullitts)
After the twins, car should weigh around 3350#s. Really about 200#s heaver than the Z06 .
Oh and yea foxed can be EASILY made to be 2800#s...but they also dont have all the comphort that we have. Id take an 11 second 04 GT over a 10 second notch anyday. Kinda like that 10 second RX7 your friend has.
I PERSONALLY would take your car over his in a heart beat. His car is a plain looking 80s style RX7 with a powerful motor....big deal. Like a 9 second civic, sure its fast but thats about it. Your car is an awsome looking mustang with attitude AND power.