Engine Builder, Different Tuner

[vdub]

Hey guys

Recently had my engine rebuilt by one workshop that shall remain unnamed.

The worn in period for the motor is pretty much over and need to go back for a service and new ecu and tune.

However i feel the boys at Racepace will do a better job tuning it.

Is this situation uncommon? I only ask because the builder gave me a years warranty on the motor and i would like to keep it.

so i suppose the real question is, should the builder honor the warranty even though ill get the tune from somewhere else?

[MagicMikeZ32]

You won't keep warranty if the builder doesn't tune it. Guaranteed

[Rob260]

Seems like the kind of question you should be asking the engine builder?

Short answer probably not.

[Kinkstaah]

I had asked this question and got a "if it gets tuned by A, B, or C I'll honor it" - So it's worth asking. I asked only due to time constraints in my example.

Alternatively, get it tuned by the builder then see another tuner. It does make a fair amount of sense to let the guy who built it tune it, especially if they are going to warranty the end result. I'd rather take a warranty over ~10kw

[nomnomv8]

In the unlikely circumstance that something goes wrong :

Engine Builder will blame tuner => Tuner will blame engine builder.. and in the end your the one with your hands in your pockets.

Get the run in done, do an initial tune at the workshop that built it and enjoy the thing for at least a couple of months. Id rather have it tuned running richer and safer than going balls out on a freshly built motor. After a couple of months if your getting sick of it go to Racepace, whack some timing and boost in it and see how you go

[MagicMikeZ32]

Don't forget that running too rich can be just as bad as too agressive

[BeastVS]

As someone above said, Most engine builders will have a preferred tuner if they don't do tuning themselves. I know my personal mechanic is a big fan of the bloke at LSX tune, But he also has a couple of others he trusts. Best bet is to have an in depth conversation with the engine builder and see what they say about it.