cravnpup

Wow, I don't think I've ever seen someone so touchy about their car.. Why not just put the redline at 6krpm then? Seems stupid to have a 7200rpm redline car that can realistically only rev to 6000 before it completely chokes..

Malloric

... because the engines perfectly capable of spinning at 7,200 RPM? Why not? What if you're mid corner and cross over 6,000? You'd appreciate the extra head room then, even if it wasn't in the engines sweet spot.

And yah, the Mazdaspeed3 has a narrow power band. The GTI makes more torque down low and again up top than the MS3, despite having a much lower peak torque figure. That said, it's not exactly hard to keep it around 3-5.5k.

cravnpup

Em, no it's not. Look at the dyno, that motor is making almost ZERO torque by 6500rpm..

budgy

im sorry I was defensive.

btw in that dyno it was still making like 175 lb/ft of torque @6,000RPM, not nearly as much as its peak but still accelerating hard in lower gears, again Malloric made his point quite clear, its more for track/autocross purposes that the rev limit be set much higher because sometimes you need to only accelerate a couple extra mph before braking, you are not gonna shift into the next gear just to be in your sweet spot for .0001 seconds.

Malloric

Yes it is perfectly capable of spinning at 7,200.

And you need to learn how to read a graph. Projecting out it looks like it'd still be making more torque at 6,500 than the S2000 does.

stageup

only thing i have is the cobb sri and inlet
i dont have the $ to try diff intakes tho haha
and i only have those things because they are
carb approved. noticed a huge diff between stock
and intake only. i have yet to test drive the new one
but i could care less as it's the same motor with revised
gear ratios.

Abdizzle

I think you lack understanding.

cravnpup

Nah, I'm good, but thanks for the insight champ. Extrapolating the dyno shows 25 ftlbs at the wheels at 7200rpm.. Try that over 60mph, and you'll be slowing down..

Abdizzle

You are out of your mind.

budgy

that dyno graph starts @ 125lb/ft of torque, and I have seen dynos on stock MS3's ran to fuel cut they make atleast that much all the way to redline. not saying its a lot, but come on..25lb/ft? Again in the lower gears its still enough to pull relatively hard.

to the OP: Have you ever tried launching it before? I am not a big fan of drag racing but I have found that once you get a couple bolt ons the car seems to turn out slightly faster and more consistent times just launching in 2nd gear