Opinions Needed Please!

[lukexr61988]

I have a 06 bf with the stronger bottom end currently making 360rwkw on 17psi with mods listed below in sig.

I am now wanting to do a few more mods ( plenum,surgetank/044 and wastegate porting) to get me closer too 400!! which I have seen many many guys do on the stronger bottom ends!

1st problem. My tuner is telling me it is unsafe to go anymore then another 10/15rwkw?? this confuses me because with the right mods guys are making 430rwkw PLUS!!

2nd problem. My tuner is saying my wastegate DOES NOT need to be ported as it was holding boost well already but on a cold night I can feel it overboosting! and going by what iv read an seen from everyone els's experiences even at the power level im at now the wastegate should be ported.

I am not trying to have a shot at my tuner as I am happy with all work that has been done, just after some opinions as I am pretty confused as what I should do.

[PHANTMXR6]

I don't think it's a question of making the power. It's a question of how long it lasts at that power before it hand grenades.

I'd say your tuner is saying this for good reason.

How many kms on the engine?

[lukexr61988]

47,000ks mate

[senna_T]

Mate, the tricky thing for your tuner is that the load and WOT time on the street is far more than it is on a dyno. I re-built my ba motor early on for longevity and reliability, I knew I was gonna go for big power (this is a couple of years ago remember) so I didn't want to be stranded on the side of the road with a twisted rod or a crank inspection hole in my block! lol

In the end, you can push the motor harder, but be prepared for the possible consequences...

[lukexr61988]

thanks pat, what are your thoughts on the wastegate porting?

[whistler6]

I agree, once going around the 18 or over psi mark on the stock motor, who knows how long your engine will last?!

Your not happy with 360rwkw?

That 400 will be peak power, which may not be useable on the street, whats the boost come on like down low in the rev range?? Could you ask your tuner to put in more boost down low maybe, I dunno.....

Plenum will allow your engine to produce power more efficiently with less boost which is a plus!

Is it for just for the '400' number or do you actually want more power?

[lukexr61988]

dont get me wrong 360rwkw is still alot of power and alot of fun but just like almost everyone on here, you always want more! its got nothing to do with the numbers just me wanting more power

it comes on boost hard just under 4g and yes I would like a bit more down low and have asked for this and have been told it cannot be done..??

[senna_T]

I'll shoot you a PM mate