New engine/ Running in/ Mapping??
 

Hi people

I currently have a 02 wrx which had std internals turbo and injectors and only bolt ons which was mapped to 320bhp on the std ecu then it went bang (span a shell).
Now I have had the engine built in to a 2.1 with a TD0620g will the engine have to be mapped before I run it in? Or just run it in as it is and then add my bigger injectors after the running in procedure and then open the taps with the map?

Many Thanks

its best to get a running in map, then another map once it's ran in.

the mapper will tell you when its the best time to add any mods ..:thumb:

whoever built the engine can tell you.

Everyone has their own running in procedure, so as said ask the builder.

I know of many occasions where the car has been mapped straight off the build.

I did very similar.
The late, great Harvey Smith advised a running in map, with a proper map after 1000 miles.

Bob Rawle did both.

thankyou people it just seems soooo obscene the two different ends of the spectrum.
Obviously I would have thought running in would have been crucial yet others who are experienced grease monkeys say no need what so ever!?

Well, there's running in and running in.

The old school type limited the revs and speed in gears and the limits rose after 100 miles, 200 miles, 500 miles and 1000 miles.

Harvey, on the other hand, told me not to go over 5000rpm in any gear, and not to stay in any one gear, except 6th, for long periods.
Apart from that, it was as normal.

Bob reduced the boost to 1 bar for the running in period and it would still see off most other cars.:D

Some boost whilst running in is good as it helps seat the rings. Also lots of engine braking helps.

I ran mine on Millers running in oil for the first 200 miles, then semi synth for 500 miles then onto fully synth after that. Kept the revs under 5k rpm but gave the engine a fair bit of load and varied the revs alot. I didn't have a running in map as the spec of my engine hadn't changed other than going from a 2.0 to a 2.1 which the MAF could account for. Once it was on fully synth oil I had the map tweaked to suit.

Done nearly 9k miles on it now and its running better than ever :).

Brilliant Thankyou! coooor I cant wait to get my car back ive been without it 10 months now its hopefully ready next week!

so would my car still run fine now with a bigger turbo and now a 2.1 without having to adjust the map?

i remember when i got my rebuilt engine back and asked the builder about how to run it it. It was a proper fun moment, as I was expecting some long list while he was like:

change this oil in about 2-4 weeks, and just try to not push it too hard. drive it normally. It was so fun :lol1:

the theory behind it being that nowadays engine components don't have sharp edges like they used to have before. this is because manufacturing process has now all sorts of brushes and stuff which will take off any burs and sharp edges from your engine parts, hence even if you break it in, is not even close to the break-in's old people used to do on their Capris and stuff.

Same as above I was told at my work place where I make stuff for different companies like Bosch and Ford, no break-ins whatsoever on their parts because of the brush deburrers.

Nice one hopefully today is the day!!!!