Got Bored,...Pulled the Trigger Here She IS!!!!!.....>>>>>>>

[4.8isX5]

Who said the topic is 4.6? When you guys were reffering to the 4.8.

And im assuming the top end on a 4.6 is worse as it has a gear less and diff gearing.

[bcredliner]

There are formulas for estimating top speed. One of the factors that is a significant is the frontal area of the vehicle. The X5 has a high frontal area so wind resistance builds up quickly and to go just a few mph faster it takes huge increases in HP/TQ and a great distance to realize the gain.

A top speed discussion should be at least over a measured distance, better yet at the same place on the same day. Just to get a sense of how much horsepower it takes to go fast I am attaching a video of Corvettes at the Texas mile. Since a majority of us know the capabilities of a Corvette and it has such low front area it seems like a good example.

https://www.youtube.com/watch?v=o329ZFqnsEM

[pnoyako85]

mR wong here you go...

Here you go.

https://vidd.me/PQL


Modified Driver/ Barn Tunned

[Mr.Wrong]

Thanks!
What was your baseline dyno #s as in stock before the mods you did?
I'm trying to see how much power those mods yielded.

[e30cabrio]

Nice! How are you avoiding codes without cats?

[MINIz guy]

Originally Posted by e30cabrio

Nice! How are you avoiding codes without cats?

I don't think he is. In his in-car videos, it looks like this SES light is on.

[pnoyako85]

Mr wong before mod. Ypu can see on utube base line for 4.8 is 270whp 1st one



Modified Driver/ Barn Tunned

[Mr.Wrong]

Originally Posted by pnoyako85

Mr wong before mod. Ypu can see on utube base line for 4.8 is 270whp 1st one



Modified Driver/ Barn Tunned

That seems like where you should be with the mods you have up by 51whp(269 to 320). But I'm surprised how you picked up 126tq (237 to 363), that's a huge gain.

[Ricky Bobby]

Originally Posted by Mr.Wrong

That seems like where you should be with the mods you have up by 51whp(269 to 320). But I'm surprised how you picked up 126tq (237 to 363), that's a huge gain.

With a straight piped exhaust, a flash and a cold air intake, you're right, 50% more torque than stock is a huge gain, even on 100 octane.

[pnoyako85]

Originally Posted by Ricky Bobby

With a straight piped exhaust, a flash and a cold air intake, you're right, 50% more torque than stock is a huge gain, even on 100 octane.

The first one is the accurate one the 237 is trying to play with it...
U the car is rated 390hp and 360trq right?