Options to get to 750 rwhp/rwtq

allmotor_2000 · 05-10-2017, 08:49 PM

Quote:

Originally Posted by Fundguy1

Ok so if the turbos grenade im not so upset. I'm worried about the internals. What kind of power level can the internals take for a couple hundred k miles without doing a built motor?

Couple 100K miles..?? Stay stock!

Fundguy1 · 05-10-2017, 09:18 PM

Quote:

Originally Posted by allmotor_2000

Couple 100K miles..?? Stay stock!

Can't do that. Not in my DNA. I have 240k on my 335i e93 and 675 hp with 28psi boost. If something blows, I just replace it with sturdier and more power. I'm the e93 version of you allmotor.

allmotor_2000 · 05-10-2017, 10:58 PM

Lol - then build it :-)

Padfan9 · 05-11-2017, 12:57 PM

Quote:

Originally Posted by MissionPerformance

The highest we have got stock turbo M5 was 767whp/787trq BUT that set the stock turbos way out of their efficiency range to the point that they were choking on a 50-300km/h pull. The sweet spot for stock turbos on these engines is about 35lb/min of air per turbo, and that roughly translates to 750crank HP (~650hp). At those power levels, you should expect the turbos to last some time and not have sleeve or shaft failures.

So if I have 630whp and don't track, or do anything stupid, and it's a 3 year lease, I should be ok? Lol

TheHouseWon · 05-11-2017, 01:53 PM

Quote:

Originally Posted by Padfan9

So if I have 630whp and don't track, or do anything stupid, and it's a 3 year lease, I should be ok? Lol

I would say your chances are fair to good

But if you blow it up, be prepared to pay

BPMSport · 05-11-2017, 04:52 PM

Quote:

Originally Posted by Padfan9

Quote:

Originally Posted by MissionPerformance

The highest we have got stock turbo M5 was 767whp/787trq BUT that set the stock turbos way out of their efficiency range to the point that they were choking on a 50-300km/h pull. The sweet spot for stock turbos on these engines is about 35lb/min of air per turbo, and that roughly translates to 750crank HP (~650hp). At those power levels, you should expect the turbos to last some time and not have sleeve or shaft failures.

So if I have 630whp and don't track, or do anything stupid, and it's a 3 year lease, I should be ok? Lol

Should be good. Might have issues at some point with coils/injectors but this is par for the course.

Fundguy1 · 05-11-2017, 05:31 PM

Quote:

Originally Posted by Mike Benvo

Should be good. Might have issues at some point with coils/injectors but this is par for the course.

Really most worried about the long block. Rest isn't an issue. Is 700 realistic for the long block for a couple hundred k miles Mike?

Padfan9 · 05-11-2017, 07:19 PM

Quote:

Originally Posted by schnell1982

Quote:

Originally Posted by Padfan9

Do you guys think our motors / clutches are safe to run 630-640whp as long as we don't track and drive smart? What's the real risk ? Let's say intake, exhaust and flash tune only ?

I have heard there are more then a few blown S63T engines.
Rod bearings and such.
Good question to put out there because we all know you can push the performance so far until something stock fails.
Anything over 700 WHP is just waiting for something to fail in my opinion.
Might not be right away but long term wise

So then I would say 630 is safe?

TrevorM3 · 05-11-2017, 08:01 PM

Id say anything under 650whp is safe. but we all have diff definitions of safe.

05-10-2017, 10:58 PM	#25
allmotor_2000 F10 1/4 WR: 9.9s / 142.5mph 1/2 WR: 175.5mph 1087 Rep 1,968 Posts Drives: 2018 RS3, 991 Turbo Join Date: Jul 2014 Location: Westlake Village, CA iTrader: (0)	Lol - then build it :-)
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05-11-2017, 08:01 PM	#31
TrevorM3 Banned 3322 Rep 8,083 Posts Drives: 6.3 AMG Join Date: Apr 2013 Location: Florida iTrader: (0)	Id say anything under 650whp is safe. but we all have diff definitions of safe.
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