engine break in
 

is it bad to drive the car over 120mph during break in on 200 miles on motor? I've been tempted a couple of time and took it. today I drove 200 miles at an average spead of 90mph, and ocasional 120 blast racing on the autobahn, I hope its safe to do because I was doing it all day today. the car is surpisingly quick to be a lowered compression b16.

Re: engine break in
 

i personally whouldnt do that when braking in a engine, i whould take it easy for awhile and gradually give it a couple of 2, then 3 and 4 gear pulls after awhile, but everyone has there own way of breaking tha ---- in

Re: engine break in
 

That is the dumist ---- ive ever heard. the best way about breaking in a motor is to go through every rpm range for around 10-15 min obviously you dont want to redline it, I wouldnt want to go past 6000 on a built b16

Re: engine break in
 

Wait till 3000 miles for hardcore driving

Re: engine break in
 

or buy an M3 and rev the ---- outta it before 100 miles ;D

Re: engine break in
 

WEll that is retarded it doesnt take close to that ya but what your doing isnt the best thing. Change your oil and compression test

Re: engine break in
 

then what is the best. i have heard two methods. baby it for 500 miles, change oil, baby for another 2000, change oil ,then rapage. OR beat the living piss outta the motor non-stop for 500, change oil once, and then reguklar oil changes and regular rapage

Re: engine break in
 

the car runs great except for a little high idle. which will be fixed soon... compression test was accross the clylinders at 140, the piston are 9.01 81.5mm flat top. my boy have the same setup with 81mm pistons his comp is 135 across.

Re: engine break in
 

0-200 miles ( 0-325 km ) : Try to keep the highest rpm under 3000 rpm. Every 15-20 miles, zing the engine to 4500 rpm in first and occasionally in second gear.

201-400 miles ( 326-650 km ): Try to keep the revs limited to 3500 rpm. Raise the "zing" rpm to 5500 with the same frequency as above.


401-600 miles ( 651-970 km ) : Go to 4000 rpm for driving limit. Raise the "zing" to 6000 - 6500 rpm and include 3rd gear pulls, same frequency.

600-800 miles ( 971-1290 km ): 4500 rpm driving limit. "Zing" it to 7000+ rpm and include partial 4th gear pulls.

800-1K miles ( 1291-1615 km ) : 5000 rpm limit with "zing" to 7500+ rpm with some pulls all the way through 4th and partial fifth gear pulls.


Now, don't misunderstand me on the zings. You don't HAVE to scream the engine religeously at the prescribed intervals. If you don't have the space to run the engine up in the selected gears, don't do it. Just know that you can, and IF the opportunity comes around lay into it. Don't over-do the procedure.

I recommend that the oil be changed at the 1K mile marker. If the plugs are looking good and if the compression's (and leak down numbers) good, switch to Mobil 1 for life. Use either 0-30, or 10-30.

After the oil change, you might want to reset the valves and from that point on, drive it the way you'd normally run it.

Re: engine break in
 

it have over 500miles on it now and I will boost it sometime this week, I've been working late so no time. hopefull friday