mx5 and dyno day

[MX-5]

Originally posted by at58


Figure in a rough 30% drivetrain loss and it comes out to 249.21 on just the motor.

That's about right.

My stock 2002 is rated at 150 hp at the motor.
With only an open element air intake and a single outlet Dynomax muffler, I pulled 113hp at the front wheels.

Docbrock2 pulled 118hp with an Ingen intake and a pacesetter muffler. We are identicle, other than that.

The math says 25% driveline loss for my auto trans with those 2 mods.
I would guess about 28% on a stock PT automatic trans.
I'm at 10K miles and it's just getting loosened up.

[RubyRed]

It looks like a good time was had by all. Thanks for posting pics, too, MX-5.

[JOEM]

Originally posted by MX-5



The math says 25% driveline loss for my auto trans with those 2 mods.
I would guess about 28% on a stock PT automatic trans.
I'm at 10K miles and it's just getting loosened up.

Great pics and stats, MX-5 and thanks for sharing. You all obviously had a great time!

I loved seeing that '67 Plymouth Sports Fury. I had a white '66 Plymouth Sports Fury back in the day with the 383 and it sure had plenty of torque and power, as I recall.

Interesting data on the "loss" of HP between engine and wheels. My Ram HEMI (pure stock) has a 25 percent driveline loss, which I think is pretty efficient. But some Ram HEMI owners whine about that!

[BlueMeanie]

Wooohoo!! It looks like you had some fun!! I'll be seing you (I hope) at CTF this weekend!!

Dan

[MX-5]

Originally posted by JOEM
Interesting data on the "loss" of HP between engine and wheels.

If you look at the race car, you can see it's a little more efficient.

The engine dyno showed 678hp at the crank.
Our chassis dyno read 528hp.

That's 22% loss through a 2-speed powerglide trans.

Interestingly, the torque remained about the same.

[lisa]

Originally posted by MX-5




I'm at 10K miles and it's just getting loosened up.

You have got to be KIDDING!!!!! Just 10K? You sandbagger!!! Get out and put some miles on her or she is gonna get upset! Just kidding-I am at 38K on my dreamer 1-And I have a beater so I don't even drive her everyday!!!

[MX-5]

Lisa,
That 10K is mostly driving to club events and going to the Falls.

It's a garage queen.

Of course, a bunch of those miles are at the dragstrip.
1 mile per run. 1/4 to race, 1/4 to stop, 1/2 to drive back to the staging lanes.

[MX-5]

Originally posted by at58
Hey Mike check with Kenny to see if he got any pics of me on the Dyno......Thanks.....Andy

I picked up a print from Ken Hall today.
It was taken in the parking lot, outside in the sunshine.

He says "$15 and it's yours."

PM me with a shipping address.

[MX-5]

I received the dyno CD today!

Here's some pics I missed.

[MX-5]

GT turbo and nitrous was a blast!