[ssauer2004]

What rpm should I set my shift light at? Just off the showroom floor 2008 STI. I searched around for a dyno sheet on a bone stock car. I found a few from the big names with the power output number, but never at the specific rpm.

[stickytires]

Whatever they say not to go above. 4K?

[ssauer2004]

I was looking more for the rpm at which peak hp is made.

[twigg107]

Originally Posted by ssauer2004

I was looking more for the rpm at which peak hp is made.

He was saying your probably still in the break-in period which is usually nothing over 4k rpms for the first 1000 miles.

[ssauer2004]

I figured that's what he meant. I don't need a shift light to 4k though. I just wanted to set it once and for all at peak rpm/hp

[JuggernautTCW]

didnt harmon motive post a dyno graph?

[twigg107]

If you look at the dyno graph on this page, the blue lines are stock baseline.

http://www.iwsti.com/forums/power-br...401-lb-ft.html

[waktasz]

Redline. Maybe set the light a little before so you have time to react, but the car is still pulling at redline.

[kaz]

It's been eternally debated, but I set mine the highest it can go (6700)...and I have made sure since the car had 11 miles that I redline and zing through the gears at least once everytime I drive it. It's a modern engine, rings need to be set, etc.

[twigg107]

Originally Posted by kaz

It's been eternally debated, but I set mine the highest it can go (6700)...and I have made sure since the car had 11 miles that I redline and zing through the gears at least once everytime I drive it. It's a modern engine, rings need to be set, etc.

Thats debatable.... mostly depends on what the rings are made from, some take 1k miles and some dont.

[GilMikalian]

Originally Posted by kaz

It's been eternally debated, but I set mine the highest it can go (6700)...and I have made sure since the car had 11 miles that I redline and zing through the gears at least once everytime I drive it. It's a modern engine, rings need to be set, etc.

You know something Subbie does not know since they instruct to stay under 4K (while varying rpms in that range) for the 1st 1K miles? I've been taking it easy and would like an excuse to meet Mr. Redline, but not at the expense of hurting the engine since this is going to be a keeper.

[stickytires]

Originally Posted by GilMikalian

You know something Subbie does not know since they instruct to stay under 4K (while varying rpms in that range) for the 1st 1K miles? I've been taking it easy and would like an excuse to meet Mr. Redline, but not at the expense of hurting the engine since this is going to be a keeper.

If you read the manual it states that you can go over 4K in an emergency to pass someone and such. I agree that going to redline once a week doesn't do any harm. It's an emergency for me to feel max boost.

[ssauer2004]

Lol!!

[kaz]

Again, this thread should not turn into an age old debate. Every manufacturer advises a proper brake in period when the car is new, there are reasons for this. I am with the side that always treats and engine like it's intended to be used - I don't think you should remain at redline for extended periods of time like on a track, but for me at least I make sure to give the engine a variety of loads, speeds, and modulate through the gears. I mean...Harman has their project car with 600 or so miles? And believe that thing has been redlined on the dyno with high loads plenty of times. Sure a shop like them intends to one day build the motor and warranties are not of concern...but remember they did win the tuner shoot out with their street class stock engine'd Sti. Again, endless debate the original answer was I set mine to 6700.

[ssauer2004]

I have to agree with Kaz. When I break in bikes or cars, I always drive like I would drive it. My vehicles whenever they have been on the dyno always make good problem free power.