Ok when im braking in my motor (when i get it together that is) do i turn down the boost? or just leave it where ever it is.
brake-in question
- Thread starter whenmunkysfly
- Start date
leave it where it is and take your lead foot off. Do not under any circumstances boost it. Thats about it. After 500 miles then boost it 
i don't know from experiance but there are many difrent methods. some say turn it down and break it in easy and some say drive it like you stole it.
but use stait 30 weight oil, non-synthetic, for the first, i think, 500 miles. (IJ preaches this)
but use stait 30 weight oil, non-synthetic, for the first, i think, 500 miles. (IJ preaches this)
You're suppose to drive it at varying rpm's for the first 500 miles. You can't drive it at 60 for the whole 500 miles. Drive it easy, but I've read you're suppose to go fast and slow but not hard.........we are still talking about your engine, right?
yea i was going to try the hard accel. hard deccel. method as i really see the point to this. but since its hard accel. was wondering if i turned it down thanks for the help.
what you should do is run the car hard thru the rpm ban from like 2-5 then lift and let the car slow down by itself i would do this 8-10 times what this does is allow the rings to shave and seat themselves properly in the clynder
yes this is exactly where i got my info from. im not completely stupid on the subject im only asking if you turn down the boost as no racecars i have driven have had turbosTwigger said:
What ever method you choose, please make sure you do the two following:
-Do not use synthetic to break in
-Make sure the car is above 1250 rpms for the first half hour of its life. If you don't it WILL SPIN ROD/MAIN BEARINGS.
-Do not use synthetic to break in
-Make sure the car is above 1250 rpms for the first half hour of its life. If you don't it WILL SPIN ROD/MAIN BEARINGS.
I just broke in my 7M.
Used mineral oil the first 4000km or so.
After the first time it was started, we set the timing correctly and went on to the road with it.
The first 2000m I ran it 'mild'. Did not go above 2000rpm.
After that I ran the car from mild to hard, but NEVER EVER went above 4000rpm's. Don't do that!
the boost was stock so max was 0.4bar (about 5.5 psi???).
First you rush true gears and then let go with the gas some to let the car break on the engine. that is very important.
Do not use the brakes excessivly when coming on to a traffic light or corner, just let the car slow down on its own. As also said above, don't run the car on a constant rpm / speed. change speeds a lot. play with the gas.
after about 1500 miles we took the valve covers off and retorqued the head. that is also very important.
When the retoqrue is done, you can up the boost some. (I did 0.6 bar)
Afther that I broke in the engine some more for about 2000 miles and changed to synthetic oil.
btw I changed the oil on a regular basis. Everybody has his or her own way of thinking about the oil changes, but I replaced both the filter and oil after some 500 miles, after 1200 miles and after 1700 miles.
But that is up to you to decide.
My car runs fine, and the oil consumption is zero to nothing
Used mineral oil the first 4000km or so.
After the first time it was started, we set the timing correctly and went on to the road with it.
The first 2000m I ran it 'mild'. Did not go above 2000rpm.
After that I ran the car from mild to hard, but NEVER EVER went above 4000rpm's. Don't do that!
the boost was stock so max was 0.4bar (about 5.5 psi???).
First you rush true gears and then let go with the gas some to let the car break on the engine. that is very important.
Do not use the brakes excessivly when coming on to a traffic light or corner, just let the car slow down on its own. As also said above, don't run the car on a constant rpm / speed. change speeds a lot. play with the gas.
after about 1500 miles we took the valve covers off and retorqued the head. that is also very important.
When the retoqrue is done, you can up the boost some. (I did 0.6 bar)
Afther that I broke in the engine some more for about 2000 miles and changed to synthetic oil.
btw I changed the oil on a regular basis. Everybody has his or her own way of thinking about the oil changes, but I replaced both the filter and oil after some 500 miles, after 1200 miles and after 1700 miles.
But that is up to you to decide.
My car runs fine, and the oil consumption is zero to nothing
hmm
Ken Henderson rebuilt his engine and within 1 hour of that he was putting out 1000 rwhp
drive it like you stole it.
15 psi is fine and it will live
Ken Henderson rebuilt his engine and within 1 hour of that he was putting out 1000 rwhp
drive it like you stole it.
15 psi is fine and it will live
figgie said:hmm
Ken Henderson rebuilt his engine and within 1 hour of that he was putting out 1000 rwhp
drive it like you stole it.
15 psi is fine and it will live
A friend of mine ruined his rebuild by doing just that with his sp61gt turbo.
1 bar of turbo pressure and whoomp, there went his HKS headgasket.
happend 4 weeks ago
Might be.
We don't really know the difference between his setup and mine during break-in besides the boost differences.
And mine is okay. but well, maybe his head wasn't resurfaced as smooth as it should be.
We don't really know the difference between his setup and mine during break-in besides the boost differences.
And mine is okay. but well, maybe his head wasn't resurfaced as smooth as it should be.
thevork said:A friend of mine ruined his rebuild by doing just that with his sp61gt turbo.
1 bar of turbo pressure and whoomp, there went his HKS headgasket.
happend 4 weeks ago
that means he detonated
the HKS gasket has survived up to 50 psi on gt42 so i doubt that sp61 was putting anywhere near the same power output.