Robert Von Karlsson

I did dyno/tune this quite a uniqe combo in my shop yesterday. BMW E31 850 with Stock Ls1 (with ls6 valvesprings), Borgwarner 475 and 14psi of boost, e85 fuel.

802whp and 1010nm (745ftlbs) at 1bar (14psi).

Dyno graph.



Enginebay.

racerfox

iTrader: (4)

stock shortblock? no arp studs at all???

Robert Von Karlsson

No arp, only modification is the springs.

ramairetransam

iTrader: (18)

let us know how long it holds up , and sick numbers.

yonerhottlt1

iTrader: (21)

Definitely good numbers...and a unique car!

Sprayed1998

iTrader: (10)

Why go through the effort when u know its gonna blow up? Sweet car though I used to love those rare beemers.

Tainted

iTrader: (9)

i love how that intake system is setup. very functional

pferris

iTrader: (2)

I am interseted to see how many miles he gets with a stock motor wit 14psi of boost. my guess is not high... less than 5000 miles

stumprrp

iTrader: (2)

My car lived under 12 pounds and even some occasional 15 pound pulls for over 10,000 miles. 800 RWHP? Not even close but still they can live if tuned right.

Frans96SS

iTrader: (15)

800 is a bit much but we had an LS6 car we tuned here with a cam, Fast and a D1 Procharger making 750. Was boosted for about 12k miles. Starting at about 650rwhp then by the end went to 753. Engine had 93k miles on it. It eventually cracked a ring land. Still runs but just puffs smoke.

gnx7

iTrader: (28)

How hard was the integration of that engine into the BMW? I know that car has a ton of modules/computers controlling just about everything!

What is the weight of the car now? I know they heavy cars.

got-a-ls1

iTrader: (12)

not to be a dick but i dont see a stock ls1 with stock heads and cam making that power on 14psi. happy dyno? 14psi on a stock ls1 should be around 600 rwhp

_GTO_

I thought the same

Great numbers , congrats .

redtan

iTrader: (5)

I thought so too, but this is also on E85 and in a BMW chassis which could have different drivetrain loss than say an fbody.

ZNix

iTrader: (1)

Can we find out what it took to get the LS engine in there? I really like these cars, but they are not very powerful from the factory, and there really is no aftermarket. I'd pick one up in a heartbeat if there was LS swap information.

Zack

bmw.rasse

Hello! New at the forum!
There were no modifications to the car, just a new gearbox and engine mount.
Just some cutting to fit the intercooler.

Mvh
Rasmus

hellbents10

iTrader: (10)

I like the car, and it will live for a good amount of time with a good E85 tuneup.

ScreaminRedZ

iTrader: (3)

That looks like a clean swap, love the car!

burnstacp

Only 600? I run 10psi and have over 500... Although, I have H/C as well.

Sluggish

iTrader: (10)

Very hard to believe, dyno tricks are at play.